[go: up one dir, main page]

EP0847855A1 - Drying unit in a printing press - Google Patents

Drying unit in a printing press Download PDF

Info

Publication number
EP0847855A1
EP0847855A1 EP97121279A EP97121279A EP0847855A1 EP 0847855 A1 EP0847855 A1 EP 0847855A1 EP 97121279 A EP97121279 A EP 97121279A EP 97121279 A EP97121279 A EP 97121279A EP 0847855 A1 EP0847855 A1 EP 0847855A1
Authority
EP
European Patent Office
Prior art keywords
dryer unit
guide surface
dryer
printing material
unit according
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.)
Granted
Application number
EP97121279A
Other languages
German (de)
French (fr)
Other versions
EP0847855B1 (en
Inventor
Rudolf Dipl.-Ing. Mitze
Wolfgang Mohr
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0847855A1 publication Critical patent/EP0847855A1/en
Application granted granted Critical
Publication of EP0847855B1 publication Critical patent/EP0847855B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/003—Handling, e.g. loading or unloading arrangements for articles
    • F26B25/004—Handling, e.g. loading or unloading arrangements for articles in the shape of discrete sheets
    • 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
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing
    • 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
    • B41F23/0483—Drying combined with cooling
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
    • 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
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/121—Fan
    • 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
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/365—Means for producing, distributing or controlling suction selectively blowing or sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a dryer unit in a printing press according to the Preamble of the main claim.
  • a dryer device of this type is known from EP 0 035 741 B1.
  • a thermoplastic film printing material is considered
  • Substrate control system a sliding table with a cooling surface of the dryer arranged opposite, the cooling surface of the unprinted side of the Printing material is facing. The dryer air is directed towards the cooling surface blown.
  • the substrate control system has, among other things, coolant channels, which are connected to a cooling system with heat exchanger and circulation pump.
  • a delivery arm in a sheet-fed printing press is known, the one arranged in a modular design within the chain conveyor system Has dryer devices. Below the sheet conveyor path are the dryer facilities Pneumatically actuated substrate control systems opposite arranged.
  • the dryer unit is among others with a cooling device with heat exchanger, flow switch, Expansion tank and circulation pump designed. From the circulation pump leads a coolant line to an arc baffle through which the coolant flows becomes.
  • the coolant outlet of the sheet guide plate can be connected by means of a connecting line be coupled with the opposite dryer unit so that this is also flowed through by a coolant.
  • a sheet guiding device is known from DE 43 08 276 A1, which among other things.
  • a dryer unit in use a dryer unit has a cooling device that cools the sheet guide surface.
  • the sheet guide surface has a large number of openings through which blown air can flow on.
  • the cooling device is a cooling trough with one Tray bottom and a lid, the lid of the sheet baffle represents.
  • a disadvantage of these designs is that the dryer units always Substrate control system are arranged opposite one another and thus the substrate only dried from one side (front). As a result, this leads to Impairments in the drying process, which e.g. by dropping Color / varnish in the case of insufficiently dried substrates in the delivery stack shows.
  • DE 38 28 753 C2 discloses a drying device for printed products, the one for energy transmission is an optical fiber cable and a linear one fanned out beam splitter device. In the sheet delivery is Drying device arranged on both sides, so that the front and back be dried. A combination with a control system is not disclosed.
  • the invention has for its object to provide a dryer unit that avoids the disadvantages mentioned, in particular the discarding of paint in the delivery stack for printing materials processed in face or face and back printing noticeably reduced.
  • a dryer unit is in the substrate control system as a module integrated.
  • the dryer unit has a separate air cooling device.
  • a cooling device is also provided for the substrate control system.
  • the invention Dryer unit is especially for an arrangement below the Substrate conveyor level suitable, so that the back of the substrate is dried and carried.
  • Printing machine is optionally one of the front of the substrate known dryer unit assignable. The assignment of the dryer unit for the front of the substrate can be directly opposite and / or upstream or downstream of the dryer unit in the conveying direction of the printing material with the sheet guide system.
  • the dryer unit according to the invention is used in particular to heat the back of the printing material.
  • the dryer unit with the substrate control system can also be assigned to the front of the substrate in order to heat and guide the front at the same time.
  • two substrate control systems, each with a dryer unit can thus be arranged opposite each other and thus realize drying and guiding of the substrate on both sides.
  • uniform heat input is achieved on the front and back of the substrate and the drying result is noticeably improved.
  • the smearing (depositing) of printing materials when they are output from the printing press is noticeably reduced.
  • the smearing in the delivery stack is largely eliminated by the heat input on both sides.
  • the heat input on both sides has the advantage that, in particular in the case of arcuate ones Substrates between the individual sheets do not promote lubrication Cold or heat bridges are created.
  • This working principle is suitable for on both sides (face and reverse printing) as well as for one-sided (face printing) Substrates.
  • Paper, cardboard, foils (plastic or metal) or sheets can be used.
  • This mode of operation is suitable for substrates, which are printed in multiple colors and / or painted in one or more colors are.
  • Sheet-like or sheet-shaped substrates can also be dried. This is especially the oxidative drying of the printed / varnished printing material as well as knocking away the paint / varnish or curing which improves UV inks and / or varnishes.
  • drying times are also shortened, which increases the productivity of the Printing machine contributes.
  • the heat input on both sides does not lead to an increased Energy requirement, rather, it allows dryers for the one-sided Switch off heat input or generally save.
  • the saving on dryer units leads to a shortening of the drying distance.
  • An offset printing machine has printing units for multi-color printing with under another a turning unit and two downstream coating units.
  • a pressure cylinder 1 is shown as part of the second coating unit.
  • the gripper systems 4 are used to transport the printing materials 5 from Printing cylinder 1 to the boom stack 8.
  • the substrates 5 are on a dryer unit 18 with a pneumatically actuated substrate control system 9 and an oppositely arranged dryer unit 10 in the conveying direction 12 using a braking device 6 and a blowing device 7 placed on the boom stack 8.
  • the boom exposes the air from the Extraction device 11 which leads away from the printing press.
  • the substrate control system 9 is of modular construction, approximately equidistant from the direction of curvature of the Chain conveyor system 3 following, arranged in the boom.
  • the boom has one the sprocket shaft 2 adjacent, in the conveying direction 12 first dryer unit 10 and a second dryer unit 10 arranged in the arch rise.
  • This Dryer units 10 serve to introduce heat on the front of the printing material 5.
  • Opposite to the dryer units 10 is one Dryer unit 18 for the heat input on the back of the printing material 5 arranged integrated in the respective printing material control system 9 in a modular design.
  • a dryer unit 18 consists of a module, for example individual or several IR radiators 17 or alternatively UV radiators, which is integrated into the sheet guiding system 9.
  • the sheet guide system 9 is assembled in a modular arrangement in the delivery.
  • a module of the sheet guide system 9, which is adjacent to the drying unit 10, essentially consists of a so-called closed blowing / suction box with a guide surface 19 facing the back of the printing material 5 and having a number of openings 14.
  • blow / suction boxes are known, for example, from DE 34 11 029 C2 of the applicant, so that the structural design is only to be discussed to the extent that a box housing 20 and the guide surface 19 forming the box cover are connected.
  • a cooling system 15 is arranged inside the box housing 20 on the back of the guide surface 19.
  • the cooling system 15 is flowed through by a coolant, for example water, which is operatively connected to a heat exchanger, a flow monitor, an expansion tank and a circulation pump.
  • the cooling system 15 is formed by arranged cooling channels, the rear side of the guide surface 19 being part of the cooling channels.
  • the printing material guide system 9 has a pneumatic system 13 which is arranged on the box housing 20 and which is formed, for example, by a series of fans. The pneumatic system 13 can be switched between blown air and suction air operation and is functionally assigned to the cooling system 15 and the openings 14.
  • the dryer unit 18 shows IR radiators 17, to which outlet openings 16 are functionally assigned, which are coupled to a separate air cooling system.
  • the outlet openings 16 open into the guide surface 19 or at least in their plane, so that the outflowing air can be used for guiding the printing material 5.
  • the dryer unit 18 is partitioned off from the other systems (cooling system 15 and pneumatic system 13) and has a reflection plate known per se.
  • the dryer unit 18 can be arranged in the center as well as off-center in a single or multiple modular arrangement.
  • the guide surface 19 can have a larger opening, optionally with a warm air permeable cover integrated into the guide surface 19, for. B. a metallic grid can be covered. This is particularly helpful when the pneumatic system 13 is switched to suction air operation.
  • a module of the printing material guide system 9 can be formed in the simplest form of the blow / suction box by an integrated dryer unit 18, a pneumatic system 13 and a guide surface 19 having openings 14.
  • This configuration is preferably suitable for intermediate drying, for example if the substrate control system 9 is assigned adjacent to a transfer drum or a reversing drum.
  • Modules of the sheet guiding system 9, which are not assigned to any dryer unit 10, have the same design in relation to the present example, but without a cooling system 15.
  • the mode of operation is as follows: The printing materials 5 pass through the printing press as well as the finishing units and are printed on one or both sides or painted to the delivery stack 8 in the conveying direction 12.
  • the printing material 5 is printed on one side, it is dried by the activated dryer unit 10.
  • the assigned substrate control system 9 is switched to suction operation with its pneumatic system 13, the cooling system 15 is flowed through by a coolant.
  • the dryer unit 18 is switched on, so that in addition to the heat input of the dryer unit 10 on the front side (face side), the unprinted rear side of the printing material 5 is also heated by the dryer unit 18. It is advantageous that the temperature differences between the front and back of the printing material 5 are very small and thus the smearing of ink / varnish as a result of heat / cold bridges in the delivery stack 8 is noticeably reduced.
  • connection of the dryer unit 18 can be omitted.
  • the other functions of the substrate control system 9 and the dryer unit 10 are retained.
  • the pneumatic system 13 is switched to blowing mode.
  • the generated air flow occurs at the openings 14 and supported by the formation of an air cushion on the Back of the substrate 5, the leadership.
  • the activated IR radiators 17 are cooled by means of the separate, externally generated air flow.
  • the air flow emerges at the outlet openings 16 and supports the management of the Printing material 5.
  • the cooling system 15 is activated, the cooling channels are from Coolant flows through and cool the guide surface 19 of the substrate control system 9. Due to the heat input from both sides, the paint or varnish becomes Expelled moisture from the substrate 5.
  • the pneumatic system 13 is switched to suction air mode. If the transfer drum is substituted by a reversing drum, the pneumatic system 13 is switched to blowing air operation for the contact-free guidance of the printed side of the printing material 5.
  • the cooling system 15 can of course be omitted due to the lack of an opposing dryer unit 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The pneumatically operated guide system (9) has a guide surface (19) with outlet holes (14) for an air-cooling system.(15). The dryer unit (18) is integrated as a module in an opening in the guide surface, and is connected to a separate air-cooling system which has outlets (16) on the same plane as the guide surface. The dryer unit is integrated in a box-shaped enclosed guide system, whose lid forms the guide surface enclosed by a box-housing (20). At least one pneumatic system (13) is connected to the outlet holes.

Description

Die Erfindung betrifft eine Trocknereinheit in einer Druckmaschine nach dem Oberbegriff des Hauptanspruches.The invention relates to a dryer unit in a printing press according to the Preamble of the main claim.

Eine Trocknereinrichtung dieser Art ist aus der EP 0 035 741 B1 bekannt. Zum Trocknen des Bedruckstoffes, hier ein thermoplastischer Folienbedruckstoff, ist als Bedruckstoffleitsystem ein Gleittisch mit einer Kühlfläche der Trocknereinrichtung gegenüberliegend angeordnet, wobei die Kühlfläche der unbedruckten Seite des Bedruckstoffes zugewandt ist. Die Trocknerluft wird in Richtung auf die Kühlfläche geblasen. Das Bedruckstoffleitsystem weist unter anderem Kühlmittelkanäle auf, die an ein Kühlsystem mit Wärmetauscher und Umwälzpumpe angeschlossen sind.A dryer device of this type is known from EP 0 035 741 B1. To the Drying the printing material, here a thermoplastic film printing material, is considered Substrate control system a sliding table with a cooling surface of the dryer arranged opposite, the cooling surface of the unprinted side of the Printing material is facing. The dryer air is directed towards the cooling surface blown. The substrate control system has, among other things, coolant channels, which are connected to a cooling system with heat exchanger and circulation pump.

Gemäß der PCT/WO 95-01930 ist ein Ausleger in einer Bogendruckmaschine bekannt, der in Modulbauweise innerhalb des Kettenfördersystems angeordnete Trocknereinrichtungen aufweist. Unterhalb des Bogenförderweges sind den Trocknereinrichtungen pneumatisch beaufschlagbare Bedruckstoffleitsysteme gegenüberliegend angeordnet.According to PCT / WO 95-01930, a delivery arm in a sheet-fed printing press is known, the one arranged in a modular design within the chain conveyor system Has dryer devices. Below the sheet conveyor path are the dryer facilities Pneumatically actuated substrate control systems opposite arranged.

Eine weitere Trocknereinheit ist aus dem DE 92 14 459 U1 bekannt. Die Trocknereinheit ist u.a. mit einer Kühleinrichtung mit Wärmetauscher, Strömungswächter, Ausgleichsbehälter und Umwälzpumpe ausgebildet. Von der Umwälzpumpe führt eine Kühlmittelleitung zu einem Bogenleitblech, das vom Kühlmittel durchströmt wird. Der Kühlmittelauslaß des Bogenleitbleches kann mittels Verbindungsleitung mit der gegenüberliegenden Trocknereinheit gekoppelt werden, so daß diese ebenfalls von einem Kühlmittel durchströmt wird. Durch die Kühlung von Trocknereinheit und Bogenleitblech wird innerhalb der Druckmaschine ein Wärmestau vermieden. Der Bedruckstoff selbst wird mittels Infrarotstrahlung (IR-Strahlung) zur Beschleunigung der oxydativen Trocknung der Druckfarben aufgeheizt.Another dryer unit is known from DE 92 14 459 U1. The dryer unit is among others with a cooling device with heat exchanger, flow switch, Expansion tank and circulation pump designed. From the circulation pump leads a coolant line to an arc baffle through which the coolant flows becomes. The coolant outlet of the sheet guide plate can be connected by means of a connecting line be coupled with the opposite dryer unit so that this is also flowed through by a coolant. By cooling The dryer unit and sheet guide plate become a heat accumulation inside the printing press avoided. The printing material itself is made using infrared radiation (IR radiation) heated to accelerate the oxidative drying of the printing inks.

Aus der DE 43 08 276 A1 ist eine Bogenleiteinrichtung bekannt, die u.a. bei Einsatz einer Trocknereinheit eine die Bogenleitfläche kühlende Kühleinrichtung aufweist. Die Bogenleitfläche weist eine Vielzahl von Blasluft durchströmbaren Öffnungen auf. Dabei ist eine einzelne Öffnung durch eine in die Bogenleitfläche als Prallfläche integrierte Stirnfläche mit einem geneigt in die Bogenleitfläche einmündenden Strömungskanal gebildet. Die Kühleinrichtung ist als Kühlwanne mit einem Wannenboden und einem Deckel ausgeführt, wobei der Deckel das Bogenleitblech darstellt.A sheet guiding device is known from DE 43 08 276 A1, which among other things. in use a dryer unit has a cooling device that cools the sheet guide surface. The sheet guide surface has a large number of openings through which blown air can flow on. There is a single opening through a in the sheet guide surface as Baffle surface integrated end surface with an inclined opening into the sheet guide surface Flow channel formed. The cooling device is a cooling trough with one Tray bottom and a lid, the lid of the sheet baffle represents.

Nachteilig bei diesen Ausführungen ist es, daß die Trocknereinheiten stets dem Bedruckstoffleitsystem gegenüberliegend angeordnet sind und somit der Bedruckstoff nur von einer Seite (Vorderseite) getrocknet wird. Im Ergebnis führt dies zu Beeinträchtigungen im Trocknungsprozeß, was sich z.B. durch das Ablegen von Farbe/Lack bei ungenügend getrockneten Bedruckstoffen im Auslegerstapel zeigt.A disadvantage of these designs is that the dryer units always Substrate control system are arranged opposite one another and thus the substrate only dried from one side (front). As a result, this leads to Impairments in the drying process, which e.g. by dropping Color / varnish in the case of insufficiently dried substrates in the delivery stack shows.

Aus der DE 38 28 753 C2 ist eine Trocknungsvorrichtung für Druckprodukte bekannt, die zur Energieübertragung ein Lichtleitfaserkabel und eine linienförmig aufgefächerte Strahlteilereinrichtung besitzt. Im Bogenausleger ist die Trocknungsvorrichtung beidseitig angeordnet, so daß Vorder- und Rückseite getrocknet werden. Eine Kombination mit einem Leitsystem ist nicht offenbart.DE 38 28 753 C2 discloses a drying device for printed products, the one for energy transmission is an optical fiber cable and a linear one fanned out beam splitter device. In the sheet delivery is Drying device arranged on both sides, so that the front and back be dried. A combination with a control system is not disclosed.

Der Erfindung liegt die Aufgabe zugrunde, eine Trocknereinheit zu schaffen, die die genannten Nachteile vermeidet, die insbesondere das Ablegen von Farbe/Lack im Auslegerstapel für im Schön- oder im Schön- und Widerdruck verarbeitete Bedruckstoffe spürbar reduziert.The invention has for its object to provide a dryer unit that avoids the disadvantages mentioned, in particular the discarding of paint in the delivery stack for printing materials processed in face or face and back printing noticeably reduced.

Erfindungsgemäß ist eine Trocknereinheit in das Bedruckstoffleitsystem als Modul integriert. Die Trocknereinheit besitzt eine separate Luftkühleinrichtung. Für das Bedruckstoffleitsystem ist ebenfalls eine Kühleinrichtung vorgesehen. Die erfindungsgemäße Trocknereinheit ist insbesondere für eine Anordnung unterhalb der Bedruckstoff-Förderebene geeignet, so daß die Rückseite des Bedruckstoffes getrocknet und geführt wird. Neben der Anordnung der erfindungsgemäßen Trocknereinheit als Modul innerhalb des Leitsystems für die Bedruckstoffrückseite einer Druckmaschine ist wahlweise der Vorderseite des Bedruckstoffes zusätzlich eine an sich bekannte Trocknereinheit zuordbar. Die Zuordnung der Trocknereinheit für die Vorderseite des Bedruckstoffes kann dabei unmittelbar gegenüberliegend und/oder in Förderrichtung des Bedruckstoffes vor- oder nachgeordnet zur Trocknereinheit mit dem Bogenleitsystem erfolgen.According to the invention, a dryer unit is in the substrate control system as a module integrated. The dryer unit has a separate air cooling device. For the A cooling device is also provided for the substrate control system. The invention Dryer unit is especially for an arrangement below the Substrate conveyor level suitable, so that the back of the substrate is dried and carried. In addition to the arrangement of the dryer unit according to the invention as a module within the control system for the back of a substrate Printing machine is optionally one of the front of the substrate known dryer unit assignable. The assignment of the dryer unit for the front of the substrate can be directly opposite and / or upstream or downstream of the dryer unit in the conveying direction of the printing material with the sheet guide system.

Die erfindungsgemäße Trocknereinheit dient insbesondere der Erwärmung der Rückseite des Bedruckstoffes. Alternativ ist die Trocknereinheit mit Bedruckstoffleitsystem auch der Vorderseite des Bedruckstoffes zuordbar um die Vorderseite zu erwärmen und gleichzeitig zu führen.
In einer weiteren Ausbildung können somit auch zwei Bedruckstoffleitsysteme mit je einer Trocknereinheit gegenüberliegend angeordnet werden und damit eine beidseitige Trocknung und Führung des Bedruckstoffes realisieren.
Insbesondere bei Anordnung einer Trocknereinheit mit dem Bedruckstoffleitsystem und einer gegenüberliegend angeordneten Trocknereinheit (ohne Bedruckstoffleitsystem) wird ein gleichmäßiger Wärmeeintrag an der Vorderseite sowie der Rückseite in den Bedruckstoff erzielt und das Trocknungsergebnis spürbar verbessert. Mit dem beidseitigen Wärmeeintrag in den Bedruckstoff wird das Abschmieren (Ablegen) von Bedruckstoffen beim Ausgeben aus der Druckmaschine spürbar reduziert. Gegenüber bekannten Lösungen mit einseitig eingebrachtem Wärmeeintrag wird insbesondere bei bogenförmigen Bedruckstoffen das Abschmieren im Auslegerstapel weitestgehend durch den beidseitigen Wärmeeintrag beseitigt.The dryer unit according to the invention is used in particular to heat the back of the printing material. Alternatively, the dryer unit with the substrate control system can also be assigned to the front of the substrate in order to heat and guide the front at the same time.
In a further embodiment, two substrate control systems, each with a dryer unit, can thus be arranged opposite each other and thus realize drying and guiding of the substrate on both sides.
Particularly when arranging a dryer unit with the substrate control system and an opposing dryer unit (without substrate control system), uniform heat input is achieved on the front and back of the substrate and the drying result is noticeably improved. With the heat input into the printing material on both sides, the smearing (depositing) of printing materials when they are output from the printing press is noticeably reduced. Compared to known solutions with heat input introduced on one side, in particular in the case of sheet-shaped printing materials, the smearing in the delivery stack is largely eliminated by the heat input on both sides.

Der beidseitige Wärmeeintrag hat den Vorteil, daß insbesondere bei bogenförmigen Bedruckstoffen zwischen den einzelnen Bogen keine das Abschmieren fördernde Kälte- bzw. Wärmebrücken entstehen. Dieses Arbeitsprinzip eignet sich für beidseitig (Schön- und Widerdruck) als auch für einseitig (Schöndruck) verarbeitete Bedruckstoffe. Als Bedruckstoffe sind dabei Papier, Karton, Folien (Kunststoff oder Metall) oder Bleche verwendbar. Diese Betriebsweise eignet sich für Bedruckstoffe, die mehrfarbig bedruckt und/oder einfach oder mehrfarbig lackiert sind. Ebenso lassen sich bahnförmige oder bogenförmige Bedruckstoffe trocknen. Damit wird insbesondere die oxydative Trocknung des bedtuckten/lackierten Bedruckstoffes sowie das Wegschlagen der Farbe/des Lackes bzw. das Aushärten der UV-Farben und/oder Lacke verbessert. Durch die Trocknungsergebnisse werden auch die Trockenzeiten verkürzt, was zur Erhöhung der Produktivität der Druckmaschine beiträgt. Der beidseitige Wärmeeintrag führt nicht zu einem erhöhten Energiebedart, vielmehr lassen sich dadurch Trockner für den einseitigen Wärmeeintrag ausschalten bzw. generell einsparen. Die Einsparung an Trocknereinheiten führt zur Verkürzung der Trocknungsstrecke.The heat input on both sides has the advantage that, in particular in the case of arcuate ones Substrates between the individual sheets do not promote lubrication Cold or heat bridges are created. This working principle is suitable for on both sides (face and reverse printing) as well as for one-sided (face printing) Substrates. Paper, cardboard, foils (plastic or metal) or sheets can be used. This mode of operation is suitable for substrates, which are printed in multiple colors and / or painted in one or more colors are. Sheet-like or sheet-shaped substrates can also be dried. This is especially the oxidative drying of the printed / varnished printing material as well as knocking away the paint / varnish or curing which improves UV inks and / or varnishes. Through the drying results the drying times are also shortened, which increases the productivity of the Printing machine contributes. The heat input on both sides does not lead to an increased Energy requirement, rather, it allows dryers for the one-sided Switch off heat input or generally save. The saving on dryer units leads to a shortening of the drying distance.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.

Dabei zeigen:

Fig. 1
einen Bogenausleger mit Trocknereinheiten,
Fig. 2
eine Trocknereinheit integriert in das Bedruckstoffleitsystem.
Show:
Fig. 1
a sheet delivery with dryer units,
Fig. 2
a dryer unit integrated in the substrate control system.

Eine Offsetdruckmaschine besitzt Druckwerke für den Mehrfarbendruck mit unter anderem einer Wendeeinheit sowie zwei nachgeordnete Lackierwerke. Als Bedruckstoff 5 wird ein Bogen verarbeitet. In Förderrrichtung 12 des Bedruckstoffes 5 ist ein Druckzylinder 1 als Teil des zweiten Lackierwerkes gezeigt. Dargestellt ist weiterhin ein im Ausleger umlaufendes Kettenfördersystem 3 mit fixierten Greifersystemen 4. Die Greifersysteme 4 dienen dem Transport der Bedruckstoffe 5 vom Druckzylinder 1 zum Auslegerstapel 8 hin. Dabei werden die Bedruckstoffe 5 an einer Trocknereinheit 18 mit pneumatisch beaufschlagbarem Bedruckstoffleitsystem 9 und einer gegenüberliegend angeordneten Trocknereinheit 10 in Förderrichtung 12 unter Verwendung einer Bremseinrichtung 6 sowie einer Blaseinrichtung 7 auf den Auslegerstapel 8 abgelegt. Der Ausleger weist eine die Luft von der Druckmaschine abführende Absaugeinrichtung 11 auf. Das Bedruckstoffleitsystem 9 ist in modularer Bauweise, annähernd äquidistant dem Krümmungssinn des Kettenfördersystems 3 folgend, im Ausleger angeordnet. Der Ausleger weist eine der Kettenradwelle 2 benachbarte, in Förderrichtung 12 erste Trocknereinheit 10 sowie eine im Bogenaufgang angeordnete zweite Trocknereinheit 10 auf. Diese Trocknereinheiten 10 dienen dem Wärmeeintrag auf der Vorderseite des Bedruckstoffes 5. Gegenüberliegend zu den Trocknereinheiten 10 ist jeweils eine Trocknereinheit 18 für den Wärmeeintrag auf der Rückseite des Bedruckstoffes 5 in das jeweilige Bedruckstoffleitsystem 9 in modularer Bauweise integriert angeordnet.An offset printing machine has printing units for multi-color printing with under another a turning unit and two downstream coating units. As printing material 5 a sheet is processed. In the conveying direction 12 of the printing material 5 a pressure cylinder 1 is shown as part of the second coating unit. Is shown also a chain conveyor system 3 rotating in the boom with fixed gripper systems 4. The gripper systems 4 are used to transport the printing materials 5 from Printing cylinder 1 to the boom stack 8. The substrates 5 are on a dryer unit 18 with a pneumatically actuated substrate control system 9 and an oppositely arranged dryer unit 10 in the conveying direction 12 using a braking device 6 and a blowing device 7 placed on the boom stack 8. The boom exposes the air from the Extraction device 11 which leads away from the printing press. The substrate control system 9 is of modular construction, approximately equidistant from the direction of curvature of the Chain conveyor system 3 following, arranged in the boom. The boom has one the sprocket shaft 2 adjacent, in the conveying direction 12 first dryer unit 10 and a second dryer unit 10 arranged in the arch rise. This Dryer units 10 serve to introduce heat on the front of the printing material 5. Opposite to the dryer units 10 is one Dryer unit 18 for the heat input on the back of the printing material 5 arranged integrated in the respective printing material control system 9 in a modular design.

Eine Trocknereinheit 18 besteht aus einem Modul, beispielsweise einzelne oder mehrere IR-Strahler 17 oder alternativ UV-Strahlern, der in das Bogenleitsystem 9 integriert ist. Das Bogenleitsystem 9 ist in modularer Anordnung im Ausleger zusammengesetzt.
Ein Modul des Bogenleitsystems 9, welcher der Trockeneinheit 10 benachbart ist, besteht im wesentlichen aus einem sogenannten geschlossenen Blas-/Saugkasten mit einer der Rückseite des Bedruckstoffes 5 zugewandten Leitfläche 19, die eine Anzahl von Öffnungen 14 aufweist. Derartige Blas-/Saugkästen sind z.B. aus der DE 34 11 029 C2 der Patentanmelderin bekannt, so daß auf den konstruktiven Aufbau lediglich insoweit eingegangen werden soll, daß ein Kastengehäuse 20 und die den Kastendeckel bildende Leitfläche 19 verbunden sind.
Im Freiraum zwischen den Öffnungen 14 ist an der Rückseite der Leitfläche 19 ein Kühlsystem 15 innerhalb des Kastengehäuses 20 angeordnet. Das Kühlsystem 15 wird von einem Kühlmittel, z.B. Wasser, durchströmt, welches mit einem Wärmetauscher, einem Strömungswächter, einem Ausgleichsbehälter und einer Umwälzpumpe in Wirkverbindung steht. Im vorliegenden Beispiel ist das Kühlsystem 15 durch angeordnete Kühlkanäle gebildet, wobei die Rückseite der Leitfläche 19 Teil der Kühlkanäle ist. Weiterhin weist das Bedruckstoffleitsystem 9 ein am Kastengehäuse 20 angeordnetes Pneumatiksystem 13 auf, welches z.B. durch eine Reihe von Lüftern gebildet ist. Das Pneumatiksystem 13 ist zwischen Blasluft- und Saugluftbetrieb umschaltbar und funktionell dem Kühlsystem 15 sowie den Öffnungen 14 zugeordnet.
Die Trocknereinheit 18 zeigt im vorliegenden Beispiel IR-Strahler 17 auf, denen Austrittsöffnungen 16 funktionell zugeordnet sind, welche mit einem separaten Luftkühlsystem gekoppelt sind. Die Austrittsöffnungen 16 münden in die Leitfläche 19 ein oder zumindest in deren Ebene, so daß die ausströmende Luft für die Führung des Bedruckstoffes 5 nutzbar ist. Die Trocknereinheit 18 ist zu den übrigen Systemen (Kühlsystem 15 und Pneumatiksystem 13) abgeschottet und weist ein an sich bekanntes Reflexionsblech auf. Innerhalb eines Moduls des Bedruckstoffleitsystems 9 ist die Trocknereinheit 18 mittig als auch außermittig einfach oder mehrfach modular anordbar. Im Bereich der Trocknereinheit 18 kann die Leitfläche 19 eine größere Öffnung aufweisen, die wahlweise mit einer Warmluft durchlässigen, in die Leitfläche 19 integrierte Abdeckung, z. B. einem metallischen Gitter, abdeckbar ist. Dies ist insbesondere hilfreich, wenn das Pneumatiksystem 13 auf Saugluftbetrieb geschaltet ist.A dryer unit 18 consists of a module, for example individual or several IR radiators 17 or alternatively UV radiators, which is integrated into the sheet guiding system 9. The sheet guide system 9 is assembled in a modular arrangement in the delivery.
A module of the sheet guide system 9, which is adjacent to the drying unit 10, essentially consists of a so-called closed blowing / suction box with a guide surface 19 facing the back of the printing material 5 and having a number of openings 14. Such blow / suction boxes are known, for example, from DE 34 11 029 C2 of the applicant, so that the structural design is only to be discussed to the extent that a box housing 20 and the guide surface 19 forming the box cover are connected.
In the space between the openings 14, a cooling system 15 is arranged inside the box housing 20 on the back of the guide surface 19. The cooling system 15 is flowed through by a coolant, for example water, which is operatively connected to a heat exchanger, a flow monitor, an expansion tank and a circulation pump. In the present example, the cooling system 15 is formed by arranged cooling channels, the rear side of the guide surface 19 being part of the cooling channels. Furthermore, the printing material guide system 9 has a pneumatic system 13 which is arranged on the box housing 20 and which is formed, for example, by a series of fans. The pneumatic system 13 can be switched between blown air and suction air operation and is functionally assigned to the cooling system 15 and the openings 14.
In the present example, the dryer unit 18 shows IR radiators 17, to which outlet openings 16 are functionally assigned, which are coupled to a separate air cooling system. The outlet openings 16 open into the guide surface 19 or at least in their plane, so that the outflowing air can be used for guiding the printing material 5. The dryer unit 18 is partitioned off from the other systems (cooling system 15 and pneumatic system 13) and has a reflection plate known per se. Within a module of the printing material control system 9, the dryer unit 18 can be arranged in the center as well as off-center in a single or multiple modular arrangement. In the area of the dryer unit 18, the guide surface 19 can have a larger opening, optionally with a warm air permeable cover integrated into the guide surface 19, for. B. a metallic grid can be covered. This is particularly helpful when the pneumatic system 13 is switched to suction air operation.

Das Ausführungsbeispiel ist nicht auf die gezeigte Ausführung beschränkt. Vielmehr kann ein Modul des Bedruckstoffleitsystems 9 in einfachster Form des Blas-/Saugkastens durch eine integrierte Trocknereinheit 18, ein Pneumatiksystem 13 sowie eine Öffnungen 14 aufweisende Leitfläche 19 gebildet sein.
Diese Ausbildung eignet sich bevorzugt für die Zwischentrocknung, z.B. wenn das Bedruckstoffleitsystem 9 einer Transfertrommel oder einer Wendetrommel benachbart zugeordnet ist.
Module des Bogenleitsystems 9, welche keiner Trocknereinheit 10 benachbart zugeordnet sind, weisen im Bezug zum vorliegenden Beispiel die gleiche Ausführung auf, jedoch ohne Kühlsystem 15.The embodiment is not limited to the embodiment shown. Rather, a module of the printing material guide system 9 can be formed in the simplest form of the blow / suction box by an integrated dryer unit 18, a pneumatic system 13 and a guide surface 19 having openings 14.
This configuration is preferably suitable for intermediate drying, for example if the substrate control system 9 is assigned adjacent to a transfer drum or a reversing drum.
Modules of the sheet guiding system 9, which are not assigned to any dryer unit 10, have the same design in relation to the present example, but without a cooling system 15.

Die Wirkungsweise ist wie folgt: Die Bedruckstoffe 5 durchlaufen die Druckmaschine sowie die Veredelungseinheiten und werden einseitig oder beidseitig bedruckt bzw. lackiert dem Auslegerstapel 8 in Förderichtung 12 zugeführt.The mode of operation is as follows: The printing materials 5 pass through the printing press as well as the finishing units and are printed on one or both sides or painted to the delivery stack 8 in the conveying direction 12.

Ist der Bedruckstoff 5 einseitig bedruckt, so wird er von der aktivierten Trocknereinheit 10 getrocknet. Das zugeordnete Bedruckstoffleitsystem 9 ist mit seinem Pneumatiksystem 13 auf Saugbetrieb geschaltet, das Kühlsystem 15 wird von einem Kühlmittel durchströmt. Die Trocknereinheit 18 ist zugeschaltet, so daß neben dem Wärmeeintrag der Trocknereinheit 10 auf der Vorderseite (Schöndruckseite) auch die unbedruckte Rückseite des Bedruckstoffes 5 durch die Trocknereinheit 18 erwärmt wird. Vorteilhaft ist dabei, daß die Temperaturunterschiede zwischen Vorderseite und Rückseite des Bedruckstoffes 5 sehr gering sind und damit das Abschmieren von Farbe/Lack in Folge von Wärme-/Kältebrücken im Auslegerstapel 8 spürbar reduziert wird. Wird ein einseitig bedruckter/lackierter Bedruckstoff 5 mit geringerem Flächengewicht, z.B. < 150 g/m2, verarbeitet, so kann die Zuschaltung der Trocknereinheit 18 entfallen. Die sonstigen Funktionen des Bedruckstoffleitsystem 9 sowie der Trocknereinheit 10 werden beibehalten.If the printing material 5 is printed on one side, it is dried by the activated dryer unit 10. The assigned substrate control system 9 is switched to suction operation with its pneumatic system 13, the cooling system 15 is flowed through by a coolant. The dryer unit 18 is switched on, so that in addition to the heat input of the dryer unit 10 on the front side (face side), the unprinted rear side of the printing material 5 is also heated by the dryer unit 18. It is advantageous that the temperature differences between the front and back of the printing material 5 are very small and thus the smearing of ink / varnish as a result of heat / cold bridges in the delivery stack 8 is noticeably reduced. If a one-sided printed / lacquered printing material 5 with a lower basis weight, for example <150 g / m 2 , is processed, the connection of the dryer unit 18 can be omitted. The other functions of the substrate control system 9 and the dryer unit 10 are retained.

Ist der Bedruckstoff 5 beidseitig bedruckt so wird dieser von beiden Seiten durch die Trocknereinheiten 10 und 18 erwärmt. Diese Betriebsart ist insbesondere für im Schön- und Widerdruckbetrieb verarbeitete Bedruckstoffe 5 relevant. Das Pneumatiksystem 13 ist dabei auf Blasbetrieb geschaltet. Die erzeugte Luftströmung tritt an den Öffnungen 14 aus und unterstützt durch Bildung eines Luftpolsters an der Rückseite des Bedruckstoffes 5 dessen Führung. Die aktivierten IR-Strahler 17 werden mittels der separaten, extern erzeugten Luftströmung gekühlt. Die Luftströmung tritt an den Austrittsöffnungen 16 aus und unterstützt die Führung des Bedruckstoffes 5. Das Kühlsystem 15 ist aktiviert, die Kühlkanäle werden vom Kühlmittel durchströmt und kühlen die Leitfläche 19 des Bedruckstoffleitsystems 9. Durch den beidseitigen Wärmeeintrag wird aus der Farbe bzw. dem Lack die Feuchtigkeit aus dem Bedruckstoff 5 ausgetrieben.If the printing material 5 is printed on both sides, it is printed from both sides the dryer units 10 and 18 heated. This operating mode is especially for Fine and reverse printing process processed substrates 5 relevant. The pneumatic system 13 is switched to blowing mode. The generated air flow occurs at the openings 14 and supported by the formation of an air cushion on the Back of the substrate 5, the leadership. The activated IR radiators 17 are cooled by means of the separate, externally generated air flow. The air flow emerges at the outlet openings 16 and supports the management of the Printing material 5. The cooling system 15 is activated, the cooling channels are from Coolant flows through and cool the guide surface 19 of the substrate control system 9. Due to the heat input from both sides, the paint or varnish becomes Expelled moisture from the substrate 5.

Ist die Trocknereinheit 18, integriert in das Bedruckstoffleitsystem 9, einer Transfertrommel gegenüberliegend zugeordnet, so wird das Pneumatiksystem 13 auf Saugluftbetrieb geschaltet. Ist die Transfertrommel durch eine Wendetrommel substituiert, so wird zur berührungsfreien Führung der bedruckten Seite des Bedruckstoffes 5 das Pneumatiksystem 13 auf Blasluftbetrieb geschaltet.
Das Kühlsystem 15 kann in Folge des Fehlens einer gegenüberliegenden Trocknereinheit 10 selbstverständlich entfallen. If the dryer unit 18, integrated into the substrate control system 9, is assigned opposite a transfer drum, the pneumatic system 13 is switched to suction air mode. If the transfer drum is substituted by a reversing drum, the pneumatic system 13 is switched to blowing air operation for the contact-free guidance of the printed side of the printing material 5.
The cooling system 15 can of course be omitted due to the lack of an opposing dryer unit 10.

BezugszeichenlisteReference list

11
DruckzylinderImpression cylinder
22nd
KettenradwelleSprocket shaft
33rd
KettenfördersystemChain conveyor system
44th
GreifersystemGripper system
55
BedruckstoffSubstrate
66
BremseinrichtungBraking device
77
BlaseinrichtungBlowing device
88th
AuslegerstapelBoom stack
99
BedruckstoffleitsystemSubstrate control system
1010th
TrocknereinheitDryer unit
1111
AbsaugeinrichtungSuction device
1212th
FörderrichtungDirection of conveyance
1313
PneumatiksystemPneumatic system
1414
Öffnungenopenings
1515
KühlsystemCooling system
1616
AustrittsöffnungOutlet opening
1717th
IR-StrahlerIR emitter
1818th
TrocknereinheitDryer unit
1919th
LeitflächeGuide surface
2020th
KastengehäuseBox housing

Claims (10)

Trocknereinheit in einer Druckmaschine mit einem pneumatisch beaufschlagbaren Bedruckstoffleitsystem mit einer Öffnungen aufweisenden Leitfläche,
dadurch gekennzeichnet,
daß die Trocknereinheit (18) als Modul in einer Öffnung der Leitfläche (19) des Bedruckstoffleitsystems (9) integriert angeordnet und mit einem separatem Luftkühlsystem in Funktionsverbindung ist, wobei in der Ebene der Leitfläche (19) Austrittsöffnungen (16) für das Luftkühlsystem angeordnet sind.Dryer unit in a printing press with a pneumatically actuated printing material guide system with a guide surface having openings,
characterized,
that the dryer unit (18) is arranged as a module in an opening in the guide surface (19) of the substrate control system (9) and is functionally connected to a separate air cooling system, outlet openings (16) for the air cooling system being arranged in the plane of the guide surface (19) . Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß die Trocknereinheit (18) durch wenigstens ein Reflexionsblech zum umgebenden Bedruckstoffleitsystem (9) abgeschottet ist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) is sealed off by at least one reflecting plate from the surrounding printing material guidance system (9). Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß die Trocknereinheit (18) in ein kastenförmig geschlossenes Bedruckstoffleitsystem (9) integriert ist, wobei der Kastendeckel durch die Leitfläche (19) gebildet ist, die Leitfläche (19) von Luft durchströmbare Öffnungen (14) aufweist, ein Kastengehäuse (20) die Leitfläche (19) umschließt und wenigstens ein mit den Öffnungen (14) in Funktionsverbindung stehendes Pneumatiksystem (13) am Kastengehäuse (20) angeordnet ist. Dryer unit according to claim 1,
characterized,
that the dryer unit (18) is integrated in a box-shaped closed substrate control system (9), wherein the box cover is formed by the guide surface (19), the guide surface (19) has openings (14) through which air can flow, a box housing (20) encloses the guide surface (19) and at least one pneumatic system (13) which is functionally connected to the openings (14) is arranged on the box housing (20). Trocknereinheit nach Anspruch 3,
dadurch gekennzeichnet,
daß ein die Leitfläche (19) kühlendes Kühlsystem (15) vorhanden ist. Dryer unit according to claim 3,
characterized,
that a cooling system (15) is provided which cools the guide surface (19). Trocknereinheit nach Anspruch 4,
dadurch gekennzeichnet,
daß die Rückseite der Leitfläche (19) Teil des Kühlsystems (15) ist, wobei die Öffnungen (14) ausgespart sind.Dryer unit according to claim 4,
characterized,
that the back of the guide surface (19) is part of the cooling system (15), the openings (14) being left free. Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß der Trocknereinheit (18) eine Trocknereinheit (10) benachbart gegenüberliegend angeordnet ist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) a dryer unit (10) is arranged adjacent opposite. Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß der Trocknereinheit (18) eine Trocknereinheit (10) in Förderrichtung (12) eines Bedruckstoffes (5) vorgeordnet gegenüberliegend angeordnet ist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) has a dryer unit (10) arranged upstream in the conveying direction (12) of a printing material (5). Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß der Trocknereinheit (18) eine Trocknereinheit (10) in Förderrichtung (12) eines Bedruckstoffes (5) nachgeordnet gegenüberliegend angeordnet ist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) has a dryer unit (10) arranged downstream in the conveying direction (12) of a printing material (5). Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß die Trocknereinheit (18) wenigstens einen IR-Strahler (17) aufweist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) has at least one IR radiator (17). Trocknereinheit nach Anspruch 1,
dadurch gekennzeichnet,
daß die Trocknereinheit (18) wenigstens einen UV-Strahler aufweist.Dryer unit according to claim 1,
characterized,
that the dryer unit (18) has at least one UV lamp.
EP97121279A 1996-12-11 1997-12-04 Drying unit in a printing press Expired - Lifetime EP0847855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19651406A DE19651406C1 (en) 1996-12-11 1996-12-11 Dryer unit in a printing press
DE19651406 1996-12-11

Publications (2)

Publication Number Publication Date
EP0847855A1 true EP0847855A1 (en) 1998-06-17
EP0847855B1 EP0847855B1 (en) 1999-11-10

Family

ID=7814311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121279A Expired - Lifetime EP0847855B1 (en) 1996-12-11 1997-12-04 Drying unit in a printing press

Country Status (5)

Country Link
US (1) US5979325A (en)
EP (1) EP0847855B1 (en)
JP (1) JP3220076B2 (en)
AT (1) ATE186500T1 (en)
DE (2) DE19651406C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015215166B4 (en) 2015-08-07 2021-07-22 Koenig & Bauer Ag Device for handling sheets

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829094C2 (en) * 1998-06-30 2002-10-24 Roland Man Druckmasch Guide device for sheet-shaped substrates in a printing machine
DE19842740C2 (en) * 1998-09-18 2002-11-07 Roland Man Druckmasch Pneumatic sheet guiding device in a printing machine
DE29912328U1 (en) * 1999-07-14 1999-09-16 MAN Roland Druckmaschinen AG, 63075 Offenbach Dryer system for sheet-shaped substrates in a rotary printing machine
DE60037466T2 (en) * 2000-02-23 2008-12-04 Agfa Graphics N.V. Compact printer and process
US6782822B2 (en) * 2000-02-23 2004-08-31 Agfa-Gevaert Compact printing apparatus and method
JP4421066B2 (en) † 2000-04-07 2010-02-24 株式会社小森コーポレーション Double-sided printing machine quality inspection device
US6401608B1 (en) 2000-05-05 2002-06-11 Halm Industries, Co., Inc. Printing press with perfecting station
DE10047726B4 (en) * 2000-09-27 2007-07-26 Koenig & Bauer Aktiengesellschaft Sheet delivery in printing presses
DE10150041B4 (en) * 2001-10-10 2006-06-01 Platsch Gmbh & Co.Kg Discharge cooling device for a printing press
DE10152593A1 (en) * 2001-10-24 2003-05-08 Koenig & Bauer Ag Device for printing material and printing unit cooling by means of cooled blown air on sheet-fed rotary printing machines
DE10217709A1 (en) * 2002-04-20 2003-11-06 Koenig & Bauer Ag sheet guiding device
US6807906B1 (en) * 2003-05-16 2004-10-26 Printing Research, Inc. Zoned ultraviolet curing system for printing press
US7669530B2 (en) * 2003-05-16 2010-03-02 Printing Research, Inc. UV curing assembly having sheet transfer unit with heat sink vacuum plate
DE10334657A1 (en) * 2003-07-30 2005-02-17 Koenig & Bauer Ag Method and device for printing substrate and printing machine cooling
DE202004005480U1 (en) * 2004-04-02 2004-06-03 Heidelberger Druckmaschinen Ag Sheetfed
JP2005305794A (en) * 2004-04-21 2005-11-04 Komori Corp Dryer for sheet-like object
DE102004032111A1 (en) * 2004-07-02 2006-01-19 Koenig & Bauer Ag Control equipment for sheet fed printing machine, has capillaries parallel to control surface, where coolant flows through capillaries and cross section of surface is formed such that dissipated heat is provided to coolant channels
DE102005042956B4 (en) * 2004-10-06 2019-04-25 Heidelberger Druckmaschinen Ag press
JP2006240204A (en) * 2005-03-07 2006-09-14 Mitsubishi Heavy Ind Ltd Drier for sheet fed printing machine
DE102010023734A1 (en) * 2009-07-09 2011-01-13 Heidelberger Druckmaschinen Ag Printed web processing machine for use in rotary sheet printing press, has suction belt blower producing low pressure or compressed air, and drive motor subjected with exhaust air of suction belt blower and cooled by blower
US9605900B2 (en) 2015-04-22 2017-03-28 Ricoh Company, Ltd. Adjustable interlacing of drying rollers in a print system
CN105667083B (en) * 2016-01-21 2018-05-01 成都印钞有限公司 A kind of paper drying process and its drying device for intaglio printing press paper collection part
US9994049B1 (en) 2017-02-13 2018-06-12 Ricoh Company, Ltd. Adjustable path length of print media in a dryer of a printing system
US9908342B1 (en) 2017-02-26 2018-03-06 Ricoh Company, Ltd. Concentric arrangement of web conditioning modules in a dryer of a print system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960081A (en) * 1973-05-11 1976-06-01 Mohndruck Reinhard Mohn Ohg Drying arrangement for drying inks, adhesives and analogous substances on sheet material
DE3107487A1 (en) * 1981-02-27 1982-09-16 Svecia Silkscreen Maskiner AB, 14502 Norsborg Drying installation
DE3411029A1 (en) * 1984-03-24 1985-10-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach DEVICE FOR GUIDING SHEETS PRINTED ON SIDE AND BOTH SIDES
DE4438922A1 (en) * 1994-10-31 1996-05-02 Kba Planeta Ag Method of drying printed paper sheets under heat and with supply of air

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568798A5 (en) * 1973-04-18 1975-11-14 Spengler Walter
US3900959A (en) * 1973-05-07 1975-08-26 Minnesota Mining & Mfg Combined infra-red and air flow drying for photographic film
DE3008703A1 (en) * 1980-03-07 1981-09-24 Ramisch Kleinewefers Gmbh, 4150 Krefeld DEVICE FOR MULTI-COLOR PRINTING THERMOPLASTIC FILMS
GB2096294B (en) * 1981-02-25 1984-06-20 Svecia Silkscreen Maskiner Ab Drier
FI80099C (en) * 1986-10-31 1990-04-10 Imatran Voima Oy FOERFARANDE OCH ANORDNING FOER TORKNING AV ROERLIGT BANMATERIAL.
US4811493A (en) * 1987-08-05 1989-03-14 Burgio Joseph T Jr Dryer-cooler apparatus
US5092059A (en) * 1988-06-07 1992-03-03 W. R. Grace & Co.-Conn. Infrared air float bar
DE3828753C2 (en) * 1988-08-25 1994-05-19 Heidelberger Druckmasch Ag Device for drying printed products in a printing press
DE9214459U1 (en) * 1992-10-26 1993-02-04 Weitmann & Konrad GmbH & Co KG, 7022 Leinfelden-Echterdingen Device for thermal drying of material webs, sheets, etc.
DE4308276C2 (en) * 1993-03-16 1997-09-04 Heidelberger Druckmasch Ag Guide device for an arch
DE4322324C2 (en) * 1993-07-05 2002-01-17 Heidelberger Druckmasch Ag Sheet transport and sheet guiding in the delivery area of rotary printing machines
DE9310028U1 (en) * 1993-07-06 1993-11-04 Kba-Planeta Ag, 01445 Radebeul Media cooling in cantilevers of sheet-fed rotary printing machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960081A (en) * 1973-05-11 1976-06-01 Mohndruck Reinhard Mohn Ohg Drying arrangement for drying inks, adhesives and analogous substances on sheet material
DE3107487A1 (en) * 1981-02-27 1982-09-16 Svecia Silkscreen Maskiner AB, 14502 Norsborg Drying installation
DE3411029A1 (en) * 1984-03-24 1985-10-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach DEVICE FOR GUIDING SHEETS PRINTED ON SIDE AND BOTH SIDES
DE4438922A1 (en) * 1994-10-31 1996-05-02 Kba Planeta Ag Method of drying printed paper sheets under heat and with supply of air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015215166B4 (en) 2015-08-07 2021-07-22 Koenig & Bauer Ag Device for handling sheets

Also Published As

Publication number Publication date
US5979325A (en) 1999-11-09
JPH10180984A (en) 1998-07-07
JP3220076B2 (en) 2001-10-22
DE59700685D1 (en) 1999-12-16
ATE186500T1 (en) 1999-11-15
EP0847855B1 (en) 1999-11-10
DE19651406C1 (en) 1998-06-10

Similar Documents

Publication Publication Date Title
EP0847855B1 (en) Drying unit in a printing press
DE69415443T2 (en) Infrared heated dryer with fan and air extraction
EP0674992B1 (en) Drier for a rotary sheet printing machine
DE10235872A1 (en) Satellite printing machine for printing on arched substrates
DE19829094C2 (en) Guide device for sheet-shaped substrates in a printing machine
DE19857984B4 (en) Dryer working with excimer lamps in sheet-fed presses
EP0778131B2 (en) Sheet guiding system for a printing machine
EP1306212B1 (en) Device for cooling the printed products with cooled air in rotary sheet printing presses
US5727472A (en) Apparatus and method for drying sheets printed on a multi-stand press
EP2755822A1 (en) Processing machine and method for operating a processing machine
DE2608661C3 (en) Device for printing and subsequent drying of sheets in a gripper connection
DE102019118565A1 (en) Sheet processing machine and method for conveying sheets
EP3781404B1 (en) Processing machine comprising a radiation dryer and method of operating
DE4219116A1 (en) Rotary, multicolour sheet printing machine - has sheet conveyors on top side of printing works or work units
DE19842740A1 (en) Pneumatic sheet guide device for printing press, with several coolant channels within pneumatically pressurized flow channel in functional connection with paper guide device
EP0987206B1 (en) Pneumatic device for guiding sheets in a printing machine
DE10141755A1 (en) Drying system for radiation drying has sealing elements for chamber outlet element versus sheet feed cylinder, inlet element versus cylinder gap, radiation transmission region on base body
EP1502738B1 (en) Method and means for cooling the printing product and the printing machine
WO2003020522A1 (en) Drying system for drying by irradiation
DE102019009156A1 (en) Sheet processing machine and method for conveying sheets
DE29819402U1 (en) Sheet guiding device in a printing press
DE102016206692A1 (en) Display of a sheet-processing machine with a sheet brake having brake stations and method for depositing sheets
DE102019118571A1 (en) Sheet processing machine and method for conveying sheets
DE102019118569A1 (en) Sheet processing machine and method for conveying sheets
DE102021123676A1 (en) Sheet-fed printing machine with a dryer for drying sheets printed by a non-impact printing device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19980429

AKX Designation fees paid

Free format text: AT DE FR GB IT NL

RBV Designated contracting states (corrected)

Designated state(s): AT DE FR GB IT NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19990326

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT NL

REF Corresponds to:

Ref document number: 186500

Country of ref document: AT

Date of ref document: 19991115

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19991110

REF Corresponds to:

Ref document number: 59700685

Country of ref document: DE

Date of ref document: 19991216

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20021128

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20021130

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20021204

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021206

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031204

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20031204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040831

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051204

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20091222

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110701

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59700685

Country of ref document: DE

Effective date: 20110701