EP0743178A2 - Guiding device for printed sheets and/or webs in drying systems - Google Patents

Guiding device for printed sheets and/or webs in drying systems Download PDF

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Publication number
EP0743178A2
EP0743178A2 EP95118039A EP95118039A EP0743178A2 EP 0743178 A2 EP0743178 A2 EP 0743178A2 EP 95118039 A EP95118039 A EP 95118039A EP 95118039 A EP95118039 A EP 95118039A EP 0743178 A2 EP0743178 A2 EP 0743178A2
Authority
EP
European Patent Office
Prior art keywords
guide
guide device
sheets
guide surface
webs
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.)
Withdrawn
Application number
EP95118039A
Other languages
German (de)
French (fr)
Other versions
EP0743178A3 (en
Inventor
Armin Schneider
Edwin Schneider
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.)
Lts Trocknungsverfahren GmbH
Original Assignee
Lts Trocknungsverfahren GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE9418358U external-priority patent/DE9418358U1/en
Application filed by Lts Trocknungsverfahren GmbH filed Critical Lts Trocknungsverfahren GmbH
Publication of EP0743178A2 publication Critical patent/EP0743178A2/en
Publication of EP0743178A3 publication Critical patent/EP0743178A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0476—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • 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
    • B65H2301/5132—Bringing 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
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/42—Distribution circuits
    • B65H2406/421—Distribution circuits with means for changing the temperature of the fluid
    • B65H2406/4212—Distribution circuits with means for changing the temperature of the fluid for cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/251—Smearing

Definitions

  • the invention relates to a guide device for sheets and / or webs in dryer systems, in particular for drying in printing machines.
  • Sheet guiding devices are known, such as the device for guiding freshly printed sheets described in DE-OS 39 38 863, preferably in the delivery of printing machines, in which the sheet is conveyed by means of gripper carriages circulating on chains.
  • gripper carriages circulating on chains.
  • the underside of the sheet is acted upon by blown air flows generated by axial fans. As a result, the sheet is guided at the same distance from a guide surface without flutter and smear.
  • This device eliminates the disadvantageous phenomenon that often "flutters” the sheet, in particular at high speeds and thin print carrier material. This prevents damage to the product, such as scratches, kinks, etc.
  • sheet guide plates By installing sheet guide plates in the form of a suction box construction, the sheet is sucked in and the "flutter" of the printing material is counteracted.
  • a disadvantage of this device is that when this sheet guide plate is installed compared to a radiation dryer, there is excessive heating and thus a distortion of the sheet guide plate designed as a perforated plate.
  • blowing nozzles with a recess that have a surface inclined to the conveying plane.
  • blowing nozzles with a recess that have a surface inclined to the conveying plane.
  • blow nozzles are created in a continuous manner in a continuous blow box, whose blow jets formed as impact jets do not strike the sheet perpendicularly and enclose an angle with the conveying direction.
  • the object of the invention is therefore to provide a guiding device which has no mechanical distortion during the drying process and thereby prevents damage to the printing materials.
  • the suction box shown in FIG. 1 shows a sheet guide plate 1 with the air inlet and outlet openings 2, which were introduced into the sheet guide plate 1 by means of laser welding processes.
  • a transport surface is created that has no unevenness and therefore excludes any influence on the quality of the printed products.
  • the sheet guide plate 1 is installed in relation to a radiation dryer, the sheet guide plate 1 is heated excessively and thus warps.
  • this disadvantageous phenomenon is counteracted by water-conducting cooling coils which are arranged on the back of the sheet guide plate 1 in a heat-conducting manner. The arrangement of these cooling coils takes place in such a way that the air inlet and outlet openings 2 remain free. Due to the different heat levels generated by the radiator on the side of the sheet guide plate 1 facing away from the heat-conducting cooling coils, the contact points between the sheet guide plate 1 and the cooling coils can come off and thus cause the sheet guide plate 1 to be warped.
  • the cooling coils are shown schematically in FIG. 1 as cooling bags 3.
  • the arrangement of an axial fan 4 below the rear wall 5 of the suction box construction is also shown schematically in this figure.
  • the sheet baffle 1 and the baffle 6 of the coolant system are designed as two congruent sheets arranged one above the other with the same perforation pattern.
  • the two sheets are processed at the air inlet and outlet openings 2 and at the sheet edges by means of a laser welding process.
  • the sheet guide plate 1 and the guide plate 6 have different thicknesses.
  • On the relatively thinner baffle 6 connecting pieces 8 are attached, via which the coolant enters and exits.
  • the coolant preferably water, is pressed through the channels 7 of the coolant system by means of a pressure system and causes a curvature of the guide plate 6, the one Hollow body can be created analogous to the welding contours.
  • the thicker sheet guide plate retains its original shape.
  • the shapes of the channel guides can be meandering, z-shaped or have other basic structures.
  • FIG 3 the guide device according to the invention with a blowing air system is shown schematically.
  • An air cushion 12 is generated by blown air through the air inlet and air outlet openings 2 introduced in the sheet guide plate 1 and transports the printing material without contact via the guide device.
  • the radiation dryer 11 arranged above the transport path heats the guide device during the drying process and would cause the sheet guide plate 1 to warp without the solution according to the invention.
  • the sheet guide plate 1 is kept in the original position and shape by means of the cooling pockets 3.
  • the contactless guidance system of the guide device shown in FIG. 4 consists of an electrostatic arrangement which generates an electric field.
  • the electrical field required for contactless guidance of the printing material to be dried is generated by the meandering electrode arrangement in the guide device, consisting of the electrode 9 and the electrode 10.
  • the meandering electrode arrangement in the guide device consisting of the electrode 9 and the electrode 10.
  • surface electrodes arranged under and above the sheet guide plate 1 and other electrode arrangements known per se can also be considered as the electrode arrangement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The guide device for damp printed sheets has a guide surface associated with at least one drying device. A contactless transport system which feeds the sheets or strip along the guide surface interacts with a cooling system. The contactless transport system can be a suction device integral with the guide device. Alternatively, the transport system can be a blower arranged outside the guide device and functionally associated with the guide surface. Coolant channels are arranged on a surface opposite the guide surface. The guide surface can have air inlet and outlet openings (2) applied by laser welding.

Description

Die Erfindung betrifft eine Leiteinrichtung für Bogen und/ oder Bahnen in Trocknersystemen, insbesondere zur Trocknung in Druckmaschinen. Bekannt sind Bogenleiteinrichtungen, wie die nach der DE-OS 39 38 863 beschriebenen Vorrichtung zum Führen frisch bedruckter Bogen, vorzugsweise in der Auslage von Druckmaschinen, bei der der Bogen mittels an Ketten umlaufender Greiferwagen gefördet wird. Bei dieser Einrichtung wird die Unterseite des Bogens durch mittels Axial-Ventilatoren erzeugte Blasluftströme beaufschlagt. Dadurch wird der Bogen in gleichem Abstand von einer Führungsfläche flatter- und abschmierfrei geführt.The invention relates to a guide device for sheets and / or webs in dryer systems, in particular for drying in printing machines. Sheet guiding devices are known, such as the device for guiding freshly printed sheets described in DE-OS 39 38 863, preferably in the delivery of printing machines, in which the sheet is conveyed by means of gripper carriages circulating on chains. In this device, the underside of the sheet is acted upon by blown air flows generated by axial fans. As a result, the sheet is guided at the same distance from a guide surface without flutter and smear.

Die insbesondere bei hohen Geschwindigkeiten und dünnem Druckträgermaterial häufig zum "Flattern" des Bogens kommende nachteilige Erscheinung wird durch diese Einrichtung beseitigt. Beschädigungen des Produktes, wie beispielsweise Kratzer, Knicke, etc., werden dadurch verhindert. Mittels Einbau von Bogenleitblechen in Form einer Saugkastenkonstruktion wird der Bogen angesaugt und dem "Flattern" des Bedruckstoffes entgegengewirkt.This device eliminates the disadvantageous phenomenon that often "flutters" the sheet, in particular at high speeds and thin print carrier material. This prevents damage to the product, such as scratches, kinks, etc. By installing sheet guide plates in the form of a suction box construction, the sheet is sucked in and the "flutter" of the printing material is counteracted.

Nachteilig an dieser Einrichtung ist jedoch, daß es bei einer Installation dieses Bogenleitbleches gegenüber eines Strahlungstrockners zu einer überhöhten Enwärmung und damit zu einem Verzug des als Lochblech ausgebildeten Bogenleitbleches kommt.A disadvantage of this device, however, is that when this sheet guide plate is installed compared to a radiation dryer, there is excessive heating and thus a distortion of the sheet guide plate designed as a perforated plate.

Bekannt ist auch eine Vorrichtung zum Trocknen von bedruckten Bogen oder Bahnen in Druckmaschinen nach der DE-PS 44 06 846, bei der ein gerichteter Strahl zum Straffen der Bogen oder Bahnen erzeugt wird. Erreicht wird dies durch Blasdüsen mit einer Vertiefung, die eine zur Förderebene geneigte Fläche aufweisen. Durch diese Erfindung ist eine Vorrichtung geschaffen worden, die ein gleichmäßiges Trocknen von Druckfarbe auf Bogen oder Bahnen ermöglicht, einen Straffeffekt quer zur Fördereinrichtung erzeugt sowie sogenannte Toträume-das sind Räume, in denen keine Luftbewegung stattfindet-, vermeidet. Mittels dieser Lösung werden auf einfacher Art in einem durchgehenden Blaskasten Blasdüsen geschaffen, deren als Prallstrahlen ausgebildete Blasstrahlen nicht senkrecht auf den Bogen auftreffen und mit der Förderrichtung einen Winkel einschließen. Mit diesen gerichteten Prallstrahlen wird eine straffende Wirkung auf das Ende und die Seitenkanten des Bogens und eine Strömung zum Abfließen der Luft in Richtung der Seitenkanten des bogens geschaffen.Also known is a device for drying printed sheets or webs in printing presses according to DE-PS 44 06 846, in which a directed jet is generated for tightening the sheets or webs. This is achieved by blowing nozzles with a recess that have a surface inclined to the conveying plane. By means of this invention, a device has been created which enables uniform drying of printing ink on sheets or webs, produces a tightening effect transversely to the conveying device and avoids so-called dead spaces - these are spaces in which no air movement takes place. By means of this solution, blow nozzles are created in a continuous manner in a continuous blow box, whose blow jets formed as impact jets do not strike the sheet perpendicularly and enclose an angle with the conveying direction. These directional impingement jets create a tightening effect on the end and the side edges of the arch and a flow for the air to flow off towards the side edges of the arch.

Nachteilig an beiden Lösungen ist, daß es bei einer Installation der Leitbleche gegenüber einer Strahlungstrocknungseinrichtung zu einer überhöhten Erwärmung und damit zu einem Verzug der Leitbleche kommt, die unkontrollierte Bewegungen der Bedruckstoffe hervorrufen und damit verbundene Beschädigungen bewirken können.A disadvantage of both solutions is that when the baffles are installed in relation to a radiation drying device, excessive heating and thus a distortion of the baffles occur, which can cause uncontrolled movements of the printing materials and can cause associated damage.

Die Aufgabe der Erfindung besteht deshalb in der Schaffung einer Leiteinrichtung, die keinen mechanischen Verzug während des Trocknungsprozesses aufweist und dadurch Beschädigungen der Bedruckstoffe ausschließt.The object of the invention is therefore to provide a guiding device which has no mechanical distortion during the drying process and thereby prevents damage to the printing materials.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruches 1.This object is achieved by the characterizing features of patent claim 1.

Vorteilhafte Weiterbildungen der erfindungsgemäßen Lösung sind in den Unteransprüchen beschrieben.Advantageous developments of the solution according to the invention are described in the subclaims.

Nachfolgend soll die erfindungsgemäße Einrichtung anhand eines Ausführungsbeispieles näher erläutert werden.The device according to the invention is to be explained in more detail below using an exemplary embodiment.

In der dargestellten Zeichnung zeigt

Fig. 1 :
die Leiteinrichtung mit einem Saugführungssystem,
Fig. 2 :
das Kühlleitsystem,
Fig. 3 :
die Leiteinrichtung mit einem Blasluftsystem und
Fig. 4 :
die Leiteinrichtung mit einem elektrostatischen Führungssystem.
The drawing shows
Fig. 1:
the control device with a suction guidance system,
Fig. 2:
the cooling control system,
Fig. 3:
the control device with a blowing air system and
Fig. 4:
the guidance device with an electrostatic guidance system.

Der in der Figur 1 dargestellte Saugkasten zeigt ein Bogenleitblech 1 mit den Luftein- und Luftaustrittsöffnungen 2, die mittels Laserschweißverfahren in das Bogenleitblech 1 eingebracht wurden. Durch die Anwendung dieses Schweißverfahrens wird eine Transportfläche geschaffen, die keine Unebenheiten aufweist und dadurch Qualitätsbeeinflussungen der Druckprodukte ausschließt. Wird das Bogenleitblech 1 gegenüber einem Strahlungstrockner installiert, kommt es zu einer überhöten Erwärmung und somit zu einem Verzug des Bogenleitbleches 1. Erfindungsgemäß wird dieser nachteiligen Erscheinung durch wasserleitende Kühlschlangen entgegengewirkt, die auf der Rückseite des Bogenleitbleches 1 wärmeleitend angeordnet sind. Die Anordnung dieser Kühlschlangen erfolgt dabei so, daß die Luftein- und Luftaustrittsöffnungen 2 frei bleiben. Auf Grund der durch den Strahler erzeugten unterschiedlichen Wärmeniveaus auf der den wärmeleitenden Kühlschlangen abgewandten Seite des Bogenleitbleches 1, kann es zu Ablösungen der Kontaktstellen zwischen Bogenleitblech 1 und den Kühlschlangen kommem und damit einen Verzug des Bogenleitbleches 1 hervorrufen.The suction box shown in FIG. 1 shows a sheet guide plate 1 with the air inlet and outlet openings 2, which were introduced into the sheet guide plate 1 by means of laser welding processes. By using this welding process, a transport surface is created that has no unevenness and therefore excludes any influence on the quality of the printed products. If the sheet guide plate 1 is installed in relation to a radiation dryer, the sheet guide plate 1 is heated excessively and thus warps. According to the invention, this disadvantageous phenomenon is counteracted by water-conducting cooling coils which are arranged on the back of the sheet guide plate 1 in a heat-conducting manner. The arrangement of these cooling coils takes place in such a way that the air inlet and outlet openings 2 remain free. Due to the different heat levels generated by the radiator on the side of the sheet guide plate 1 facing away from the heat-conducting cooling coils, the contact points between the sheet guide plate 1 and the cooling coils can come off and thus cause the sheet guide plate 1 to be warped.

Die Beseitigung dieses Nachteiles erfolgt durch die erfindungsgemäße Einrichtung. Die Kühlschlangen sind in der Figur 1 schematisch als Kühltaschen 3 dargestellt. Schematisch wird in dieser Figur auch die Anordnung eines Axialventilators 4 unterhalb der Rückwand 5 der Saugkastenkonstruktion dargestellt.This disadvantage is eliminated by the device according to the invention. The cooling coils are shown schematically in FIG. 1 as cooling bags 3. The arrangement of an axial fan 4 below the rear wall 5 of the suction box construction is also shown schematically in this figure.

Die Unterseite und der schematische Schnitt der Saugkastenkonstruktion ist in Figur 2 dargestellt. Dabei sind das Bogenleitblech 1 und das Leitblech 6 des Kühlmittelsystemes als zwei deckungsgleich übereinander angeordnete Blech mit gleichem Lochungsraster ausgebildet. Dabei werden die beiden Bleche an den Luftein- und Luftaustrittsöffnungen 2 und an den Blechrändern mittels eines Laserschweißverfahrens bearbeitet. Das Bogenleitblech 1 und das Leitblech 6 weisen unterschiedliche Dicken auf. Auf dem relativ gesehen dünnerem Leitblech 6 sind Anschlußstutzen 8 angebracht, über die der Ein- und Austritt des Kühlmittels erfolgt. Das Kühlmittel, vorzugsweise Wasser, wird durch die Kanäle 7 des Kühlmittelsystemes mittels eines Drucksystemes gedrückt und bewirkt eine Wölbung des Leitbleches 6, die einen Hohlkörper analog zu den Schweißkonturen entstehen läßt. Das dickere Bogenleitblech behält dabei seine ursprüngliche Form. Die Formen der Kanalführungen können mäanderförmig, z-förmig oder andere Grundstrukturen aufweisen.The underside and the schematic section of the suction box construction is shown in FIG. 2. The sheet baffle 1 and the baffle 6 of the coolant system are designed as two congruent sheets arranged one above the other with the same perforation pattern. The two sheets are processed at the air inlet and outlet openings 2 and at the sheet edges by means of a laser welding process. The sheet guide plate 1 and the guide plate 6 have different thicknesses. On the relatively thinner baffle 6 connecting pieces 8 are attached, via which the coolant enters and exits. The coolant, preferably water, is pressed through the channels 7 of the coolant system by means of a pressure system and causes a curvature of the guide plate 6, the one Hollow body can be created analogous to the welding contours. The thicker sheet guide plate retains its original shape. The shapes of the channel guides can be meandering, z-shaped or have other basic structures.

In der Figur 3 ist die erfindungsgemäße Leiteinrichtung mit einem Blasluftsystem schematisch wiedergegeben. Durch die im Bogenleitblech 1 eingebrachten Luftein- und Luftaustrittsöffnungen 2 wird durch Blasluft ein Luftkissen 12 erzeugt, das den Bedruckstoff über die Leiteinrichtung berührungslos transportiert. Der über der Transportbahn angeordnete Strahlungstrockner 11 erwärmt während des Trocknungsvorganges die Leiteinrichtung und würde ohne die erfindungsgemäße Lösung einen Verzug des Bogenleitbleches 1 bewirken.In Figure 3, the guide device according to the invention with a blowing air system is shown schematically. An air cushion 12 is generated by blown air through the air inlet and air outlet openings 2 introduced in the sheet guide plate 1 and transports the printing material without contact via the guide device. The radiation dryer 11 arranged above the transport path heats the guide device during the drying process and would cause the sheet guide plate 1 to warp without the solution according to the invention.

Dieser mechanische Verzug würde zu ungewollten Berührungen mit dem Bedruckstoff führen und Veränderungen des Luftkissens 12 hervorrufen. Mittels der Kühltaschen 3 wird das Bogenleitblech 1 in der ursprünglichen Lage und Form gehalten.This mechanical distortion would lead to undesired contact with the printing material and would cause changes in the air cushion 12. The sheet guide plate 1 is kept in the original position and shape by means of the cooling pockets 3.

Das in der Figur 4 abgebildete berührungslose Führungssystem der Leiteinrichtung besteht aus einer ein elektrisches Feld erzeugenden elektrostatischen Anordnung. Das zur berührungslose Führung des zu trocknenden Bedruckstoffes erforderliche elektrische Feld wird durch die maänderförmige Elektrodenanordnung in der Leiteinrichtung, bestehend aus der Elektrode 9 und der Elektrode 10, erzeugt. Als Elektrodenanordnung kommen aber auch unter und über dem Bogenleitblech 1 angeordnete Flächenelektroden sowie andere an sich bekannte Elektrodenanordnungen im Betracht.The contactless guidance system of the guide device shown in FIG. 4 consists of an electrostatic arrangement which generates an electric field. The electrical field required for contactless guidance of the printing material to be dried is generated by the meandering electrode arrangement in the guide device, consisting of the electrode 9 and the electrode 10. However, surface electrodes arranged under and above the sheet guide plate 1 and other electrode arrangements known per se can also be considered as the electrode arrangement.

BezugszeichenReference numerals

11
BogenleitblechSheet baffle
22nd
Luftein- und LuftaustrittsöffnungenAir inlet and outlet openings
33rd
KühltascheCooler bag
44th
AxialventilatorAxial fan
55
RückwandBack wall
66
LeitblechBaffle
77
Kanälechannels
88th
AnschlußstutzenConnecting piece
99
Elektrodeelectrode
1010th
Elektrodeelectrode
1111
StrahlungstrocknerRadiation dryer
1212th
LuftkissenAir cushion

Claims (10)

Leiteinrichtung für bedruckte Bogen und/ oder Bahnen in Trocknersystemen, bei der der Leitfläche mindestens eine Trocknereinrichtung zugeordnet ist, dadurch gekennzeichnet, daß das die Bogen und/ oder Bahnen entlang der Leitfläche der Leiteinrichtung führende berührungslose Führungssystem mit einem Kühlmittelsystem in Funktionsverbindung steht.Guide device for printed sheets and / or webs in dryer systems in which at least one dryer device is assigned to the guide surface, characterized in that the contactless guide system guiding the sheets and / or webs along the guide surface of the guide device is functionally connected to a coolant system. Leiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das berührungslose Führungssystem aus einer in der Leiteinrichtung integrierten Saugvorrichtung besteht.Guide device according to claim 1, characterized in that the non-contact guide system consists of a suction device integrated in the guide device. Leiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das berührungslose Führungssystem aus einer außerhalb der Leiteinrichtung angeordneten und der Leitfläche funktionell zugeordneten Blaseinrichtung besteht.Guide device according to claim 1, characterized in that the non-contact guide system consists of a blowing device arranged outside the guide device and functionally assigned to the guide surface. Leiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das berührungslose Führungssystem aus einem innerhalb der Leiteinrichtung angeordneten elektrostatischen Haltesystem besteht.Guide device according to claim 1, characterized in that the non-contact guide system consists of an electrostatic holding system arranged within the guide device. Leiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß auf der der Leitfläche entgegengesetzten Fläche kühlmittelleitende Kanäle (7) angebracht sind.Guide device according to claim 1, characterized in that coolant-conducting channels (7) are provided on the surface opposite the guide surface. Leiteinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Leitfläche mittels Laserschweißverfahren eingebrachte Luftein- und Luftaustrittsöffnungen (2) aufweist.Guide device according to claims 1 and 2, characterized in that the guide surface has air inlet and outlet openings (2) introduced by means of laser welding processes. Leiteinrichtung nach Anspruch 1 und 5, dadurch gekennzeichnet, daß die Fläche der Kühltasche (3) den zweifachen Betrag der Anschlußstutzen (8) beträgt.Guide device according to claims 1 and 5, characterized in that the area of the cooler bag (3) is twice the amount of the connecting pieces (8). Leiteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Leiteinrichtung aus mindestens zwei deckungsgleich übereinander angeordneten Blechen (1;6) besteht, die unterschiedliche Materialstärken aufweisen.Guide device according to claim 1, characterized in that the guide device consists of at least two sheets (1; 6) arranged congruently one above the other and having different material thicknesses. Leiteinrichtung nach Anspruch 1 und 8, dadurch gekennzeichnet, daß die Bleche (1;6) mit einem gleichen Lochraster versehen sind.Guide device according to claims 1 and 8, characterized in that the sheets (1; 6) are provided with the same hole pattern. Leiteinrichtung nach Anspruch 1 und 4, dadurch gekennzeichnet, daß das elektrostatische Haltesystem aus einer mäanderförmigen, zwei Elektroden (9 und 10) bildenden elektrostatischen Anordnung besteht.Guide device according to claims 1 and 4, characterized in that the electrostatic holding system consists of a meandering electrostatic arrangement forming two electrodes (9 and 10).
EP95118039A 1994-11-17 1995-11-16 Guiding device for printed sheets and/or webs in drying systems Withdrawn EP0743178A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9418358U 1994-11-17
DE9418358U DE9418358U1 (en) 1994-11-17 1994-11-17 Sheet guiding device
DE19521442A DE19521442A1 (en) 1994-11-17 1995-06-16 Guide device for printed sheets or strips in drying system
DE19521442 1995-06-16

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EP0743178A2 true EP0743178A2 (en) 1996-11-20
EP0743178A3 EP0743178A3 (en) 1997-02-19

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EP95118039A Withdrawn EP0743178A3 (en) 1994-11-17 1995-11-16 Guiding device for printed sheets and/or webs in drying systems

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101961963B (en) * 2009-07-22 2012-08-22 深圳市科彩印务有限公司 Gravure printing method of laser resisting slot

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938863A1 (en) 1989-11-24 1991-05-29 Roland Man Druckmasch Supply device for freshly printed sheets in printers - has axial ventilators and discs leaving open ring nozzles to produce suction air action on underside
DE4406846C1 (en) 1994-03-03 1995-05-04 Koenig & Bauer Ag Device for drying printed sheets or webs in printing machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619050A (en) * 1985-04-15 1986-10-28 Gerhard Klemm Apparatus for drying sheet- or web-like materials with ultraviolet radiation
EP0346081B1 (en) * 1988-06-07 1992-12-23 W.R. Grace & Co.-Conn. Air float bar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938863A1 (en) 1989-11-24 1991-05-29 Roland Man Druckmasch Supply device for freshly printed sheets in printers - has axial ventilators and discs leaving open ring nozzles to produce suction air action on underside
DE4406846C1 (en) 1994-03-03 1995-05-04 Koenig & Bauer Ag Device for drying printed sheets or webs in printing machines

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