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EP1319506B2 - Dispositif de sortie d'une machine rotative d'impression pour feuilles - Google Patents
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EP1319506B2 - Dispositif de sortie d'une machine rotative d'impression pour feuilles - Google Patents

Dispositif de sortie d'une machine rotative d'impression pour feuilles Download PDF

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Publication number
EP1319506B2
EP1319506B2 EP02023703A EP02023703A EP1319506B2 EP 1319506 B2 EP1319506 B2 EP 1319506B2 EP 02023703 A EP02023703 A EP 02023703A EP 02023703 A EP02023703 A EP 02023703A EP 1319506 B2 EP1319506 B2 EP 1319506B2
Authority
EP
European Patent Office
Prior art keywords
air
delivery device
printing machine
suction
machine 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.)
Expired - Lifetime
Application number
EP02023703A
Other languages
German (de)
English (en)
Other versions
EP1319506A3 (fr
EP1319506B1 (fr
EP1319506A2 (fr
Inventor
Hans Zimmermann
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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
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Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1319506A2 publication Critical patent/EP1319506A2/fr
Publication of EP1319506A3 publication Critical patent/EP1319506A3/fr
Publication of EP1319506B1 publication Critical patent/EP1319506B1/fr
Application granted granted Critical
Publication of EP1319506B2 publication Critical patent/EP1319506B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F23/06—Powdering devices, e.g. for preventing set-off

Definitions

  • the invention relates to a boom of a sheet-fed rotary printing press.
  • the invention relates to a boom of a sheet-fed rotary printing machine with a central extraction and a chain conveyor system, in which below the conveying path of the chain openings sheet guide plates and between slack side and conveying a Abschott recognized, air extraction and drying and dusting facilities are provided.
  • a device of this kind is the DE 198 26 083 A1 removable.
  • the existing in the boom excess hot air can be sucked off together with a part of the powder / air mixture over the openings provided in the sheet guide plates.
  • a powder barrier extending over the width of the cantilever is provided in the region of the impression cylinder and another on the empty strand.
  • the disadvantage of this solution is that the powder applied to the upper side of the printing material is sucked off only to a small extent by the openings in the sheet guide plates arranged on the other substrate side.
  • a large part of the powder / air mixture initially spreads in an uncontrolled manner in the delivery until it is removed from the powder barriers.
  • the DE 199 01 670 A1 discloses a Puderabsaug adopted for keeping clean and / or cleaning a sheet delivery, which is arranged between the empty and conveying run and on the side facing the empty strand has an opening for Puderabsaugung.
  • This device is arranged below a blowing device, with which air is sucked from outside the boom and conveyed into the boom interior. This creates an air flow on the empty strand side of the chain, whereby at this point the spread of the powder / air mixture in the direction of pressure cylinder is prevented.
  • the disadvantage of this solution is that the excess, not adhering to the printed areas powder can propagate unhindered in the boom until it is sucked off.
  • the powder / air mixture starting from the printing cylinder facing side of the pollination device and promoted by the air flow caused by the movement of the gripper carriage reach the pressure cylinder.
  • the excess heat arising during the drying process is advantageously utilized.
  • the removal of the excess powder / air mixture takes place from the interior of the boom.
  • the other part of the dryer air is sucked in the drying zone of Luftabsaug Roaden and also fed to the air treatment unit, where it is used to produce additional dryer hot air.
  • the generation of the dryer hot air in the air treatment unit can be done in a conventional manner by mixing the extracted hot air (WL) with outside air (AL), dehumidifying and / or heating.
  • WL extracted hot air
  • AL outside air
  • dehumidifying and / or heating In the device according to the invention, it is provided to make the mixing ratio controllable as a function of sensory temperature values.
  • Another advantage of the proposed device is that only powder-free hot air can reach the air treatment unit, whereby soiling of the same are excluded. Excess powder is sucked from the sheet by means of a powder extraction downstream of the drying zone and disposed of via a separate suction channel.
  • FIG. 1 the sheet delivery with integrated dryers
  • Fig. 2 the schematic representation of the air treatment unit.
  • Fig. 1 the sheet delivery and the sheet pile 11 produced by it is recognizable.
  • the sheets to be transported 17 are fixed to the gripper carriage 7 on gripper not shown, fed to the sheet stack 11 on the winningtrumseite the chains 4 and braked by means of a suction roller 21.
  • the return of the gripper carriage 7 takes place to a printing or lacquer cylinder, not shown.
  • Below the conveying strand 4 and thus below the sheet conveying path extending sheet guide plates 10 are arranged along the arc path.
  • a continuous sheet guide plate 10 may be provided.
  • last sheet guide plate 10 is designed to be displaceable together with the suction roller 21, whereby an adaptation to changing formats is possible.
  • the openings of the sheet guide plates 10 are provided with an in Fig. 2 connected air treatment unit 15 shown schematically.
  • each sheet guide plate 10 a separate vacuum source can be assigned.
  • the air discharged from the printing sheet with the aid of the axial fans can be combined in a common feed line or in the suction space 19 and fed to the air treatment unit 15.
  • the optional connection of the individual axial fans gives the opportunity to control the suction of air from the sheet guide plates 10 in areas.
  • a single negative pressure source may be provided, which is connected via corresponding controls only with the openings of certain areas of the sheet guide plates 10.
  • the dryers downstream of a dusting device 8 which extends transversely to the sheet travel direction over the format width.
  • the drying zone has two areas which differ in their proximity to the pollination device 8. In both areas means for air discharge in the form of openings in the sheet guide plates 10 and air suction 18 are provided.
  • the two areas are sealed off from each other by a barrier 22 which is arranged on the underside of the Abschott Anlagen 13.
  • the extent of the barrier 22 in the direction of the sheet guide plates 10 is limited by the space required for the gripper carriage movement.
  • the first region is formed at the beginning of the drying zone viewed in the sheet running direction and thus spaced from the pollination device 8.
  • the second region extends in the vicinity of the dusting device 8.
  • the openings of the sheet guide plates 10 and the air suction devices 18 arranged in the first region are connected to the suction side of an air treatment unit 15.
  • the openings arranged in the second region of the sheet guide plates 10 and the air suction 18 have a connection to the central exhaust.
  • the barrier 22 arranged between the two said areas can be arranged further barriers below the Abschott Nur 13.
  • a lock 22 can be mounted immediately behind the last air outlet opening 20.
  • a suction hood 12 is arranged above the empty strand 3 of the chain. The exhaust hood 12 is fitted between and sealed to the sidewalls of the boom. In the sheet travel direction it extends in the preferred embodiment in the range of lower sprocket to the suction roll 21.
  • the suction hood 12 has a suction opening 14, via which by means of a central suction, not shown, for example in the form of an axial fan, the powder / air mixture and the excess hot air from the interior are sucked.
  • a transport zone enclosing shaft which is laterally bounded by the cantilever walls on its upper side by extending over the boom width suction hood 12 and on its underside of the sheet guide plates 10.
  • a Abschott sensible 13 is arranged, which also extends over the width of the boom.
  • the Abschott immunity 13 has an opening which is located in the sheet conveying direction behind the pollination device 8.
  • This opening is connected to the Puderabsaugung 9. It serves to initiate the suction of the Puderabsaugung 9 powder / air mixture from the sheet conveying plane in the suction channel 1, which is formed by suction hood 12 and Abschotteinrichung 13.
  • the suction channel 1 In the suction channel 1, there is a flow of air caused by the return movement of the gripper carriage and the suction power applied to the suction opening 14.
  • the air flow initially runs approximately parallel to the movement of the gripper carriage until, in the region of the suction opening 14, it changes direction and leads against the gripper carriage movement through the suction opening 14.
  • the space between sheet guide plates 10 and Abschott Marie 13 takes on the sheet conveying path extending dryer. These can be IR, UV or hot air dryers or combinations of the mentioned dryer types.
  • the combination of a hot air dryer with a plurality of IR dryers 5 is shown.
  • the hot air dryer has a plurality of air outlet openings 20 in the form of transversely to the sheet conveying direction extending dot nozzle rows or slot nozzles, from which hot air flows. These are shown in the drawing in the form of arrows.
  • the powder nozzle strip 8 is arranged with downstream powder extraction 9. Powder nozzle strip 8 and downstream powder extraction 9 are sealed with the aid of compressed air-treated Blasdüsenologyn 2 with respect to the drying zone and the region of the sheet stack 11 and extend transversely to the sheet conveying direction over the boom width.
  • a flap 16 is provided on the pressure cylinder side facing the Abschottooth 13, a flap 16 is provided.
  • the flap 16 extends in the open state into the space between Abschott Vietnamese and sheet guide plate 10 and releases an opening in the Abschott Nur 13.
  • To move the flap 16 may be provided a motor drive, which is connected to the machine control or a separate control device.
  • the opening angle can be adjusted in steps or continuously depending on the operating mode.
  • the dryer environment is not yet heated and the flap 16 remains closed.
  • the hot air generated by the IR dryer 5 succeeded in the zone of the hot air dryer and thus in the air conditioning circuit.
  • the flap is opened in response to the temperature detected by a sensor in the drying zone.
  • the temperature tracking of the flap 16 causes the largest possible proportion of the dry energy of the IR dryer 5 is used, while ensuring that the drying zone does not overheat. In the operating mode with only IR drying, the flap 16 is fully opened. This causes the upstream of the flap 16 IR dryers 5 heated air can flow directly through the opening in the Abschott adopted 13 in the suction channel 2 and is discharged.
  • the conveyed in the gripper closure sheet 17 is subtracted from the printing cylinder and conveyed in the direction sheet pile 11. With the achievement of the sheet guide plates 10, it is sucked from its underside through the openings in the sheet guide plates 10 and thus guided on the sheet guide plates 10.
  • the IR radiation and the hot air stream coming from the nozzles of the dryer acts on the printed sheet 17.
  • the dryer hot air After the dryer hot air has absorbed the moisture from the dispersion lacquer applied to the printing sheet 17, it is sucked off via the air suction devices 18 and optionally fed to the air treatment unit 15 or conveyed out of the delivery arm via the suction opening 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Methods (AREA)

Claims (20)

  1. Margeur d'une machine d'impression rotative de feuilles comportant une aspiration centrale et un système de convoyeur à chaînes, dans lequel, sous le brin de transfert des chaînes, entre le brin à vide et le brin de transfert, il y a des tôles de guidage de feuilles munies d'ouvertures, une installation de cloisonnement, des installations d'aspiration d'air ainsi que des installations de séchage et de saupoudrage,
    * dans une première zone écartée de l'installation de saupoudrage, il y a des ouvertures dans les tôles de guidage de feuilles et les installations d'aspiration d'air, et
    * dans une seconde zone s'étendant à proximité de l'installation de saupoudrage, il y a des ouvertures dans les tôles de guidage de feuilles et les installations d'aspiration d'air reliées à l'aspiration centrale,
    margeur caractérisé en ce qu'
    entre les tôles de guidage de feuilles (10) et l'installation de cloisonnement (13), il y a des orifices de sortie d'air (20), et les orifices dans les tôles de guidage de feuilles (10) et les installations d'aspiration d'air (18) communiquent avec le côté aspiration d'une unité de préparation d'air (15),
    * cette unité fournissant de l'air préparé, à travers les orifices de sortie d'air (20) à une feuille d'impression (17).
  2. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    la première et la seconde zone sont cloisonnées l'une par rapport à l'autre par une barrière (22) prévue sur le côté inférieur de l'installation de cloisonnement (13).
  3. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé par
    une hotte d'aspiration (12) reliée à l'aspiration centrale, au-dessus du brin à vide (3).
  4. Margeur d'une machine d'impression rotative de feuilles selon la revendication 3,
    caractérisé en ce que
    la hotte d'aspiration (12) et l'installation de cloisonnement (13) dont prévues directement au voisinage du brin à vide (3).
  5. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'installation de cloisonnement (13) s'étend le long des tôles de guidage de feuilles (10) sur la largeur du margeur.
  6. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'installation de cloisonnement (13) comporte un capot (16) pivotant en direction de la tôle de guidage de feuilles (10), et qui permet de libérer une ouverture dans l'installation de cloisonnement (13).
  7. Margeur d'une machine d'impression rotative de feuilles selon la revendication 6,
    caractérisé en ce que
    le capot (16) est situé dans la première zone.
  8. Margeur d'une machine d'impression rotative de feuilles selon la revendication 6,
    caractérisé en ce que
    l'angle d'ouverture du capot (16) est commandé en fonction de la température régnant dans l'espace compris entre les tôles de guidage de feuilles (10) et l'installation de cloisonnement (13) ou selon le mode de fonctionnement.
  9. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    les installations d'aspiration d'air (18) sont situées à une distance du brin de transfert (4) supérieure à celle des orifices de sortie d'air (20).
  10. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'air aspiré dans le margeur est mélangé à de l'air extérieur dans l'unité de préparation d'air (15).
  11. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'air aspiré dans le margeur est déshumidifié et/ou réchauffé dans l'unité de préparation d'air (15).
  12. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    le rapport d'aspiration entre l'air aspiré et l'air extérieur est réglé en fonction de la température.
  13. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    les ouvertures des tôles de guidage de feuilles (10) sont reliées par l'intermédiaire d'un volume d'aspiration commun (19).
  14. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    les orifices d'aspiration d'air des tôles de guidage de feuilles (10) sont reliés par zones à l'unité de préparation d'air (15).
  15. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'installation de saupoudrage (8) est suivie par une installation d'aspiration de poudre (9).
  16. Margeur d'une machine d'impression rotative de feuilles selon les revendications 3 et 15,
    caractérisé en ce que
    l'installation d'aspiration de poudre (9) est reliée du côté de la sortie d'air à un canal d'aspiration (1) formé par la hotte d'aspiration (12) et l'installation de cloisonnement (13).
  17. Margeur d'une machine d'impression rotative de feuilles selon la revendication 1,
    caractérisé en ce que
    l'installation de saupoudrage (8) est précédée par une barrette de buses de soufflage (2) recevant de l'air comprimé.
  18. Margeur d'une machine d'impression rotative de feuilles selon la revendication 15,
    caractérisé en ce que
    l'installation d'aspiration de poudre (9) est suivie par une barrette de buses de soufflage (2) alimentée en air comprimé.
  19. Margeur d'une machine d'impression rotative de feuilles selon la revendication 13,
    caractérisé par
    une barrière (22) entre la dernière installation d'aspiration d'air (18) dans le sens de circulation des feuilles et l'installation de saupoudrage (8).
  20. Margeur d'une machine d'impression rotative de feuilles selon la revendication 13,
    caractérisé par
    une barrière (22) en amont du premier orifice de sortie d'air (20).
EP02023703A 2001-12-13 2002-10-23 Dispositif de sortie d'une machine rotative d'impression pour feuilles Expired - Lifetime EP1319506B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10161269 2001-12-13
DE2001161269 DE10161269B4 (de) 2001-12-13 2001-12-13 Ausleger einer Bogenrotationsdruckmaschine

Publications (4)

Publication Number Publication Date
EP1319506A2 EP1319506A2 (fr) 2003-06-18
EP1319506A3 EP1319506A3 (fr) 2004-10-13
EP1319506B1 EP1319506B1 (fr) 2009-08-12
EP1319506B2 true EP1319506B2 (fr) 2011-10-19

Family

ID=7709094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023703A Expired - Lifetime EP1319506B2 (fr) 2001-12-13 2002-10-23 Dispositif de sortie d'une machine rotative d'impression pour feuilles

Country Status (2)

Country Link
EP (1) EP1319506B2 (fr)
DE (2) DE10161269B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008000978A1 (de) * 2008-04-03 2009-10-08 Manroland Ag Verfahren zum Betreiben einer Druckmaschine
DE102010026604A1 (de) 2010-07-09 2012-01-12 Heidelberger Druckmaschinen Ag Bogenverarbeitende Maschine mit einem oder mehreren Trocknern

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826083A1 (de) † 1998-06-12 1999-12-16 Koenig & Bauer Ag Puderabsaugung in Auslegern von Bogenrotationsdruckmaschinen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207118C2 (de) * 1992-03-06 2001-05-10 Hans G Platsch Bestäubungsgerät
DE19516335C2 (de) * 1995-05-04 1997-07-31 Heidelberger Druckmasch Ag Ausleger für bedruckte Bogen
DE19901670C5 (de) * 1998-01-20 2016-11-03 Hans-Peter Koch Verfahren und Vorrichtung zum Sauberhalten und/oder Reinigen einer Bogenauslage einer Bogenoffsetdruckmaschine
DE19859246A1 (de) * 1998-01-20 1999-07-22 Koch Hans Peter Bogenoffsetdruckverfahren und Bogenoffsetdruckmaschine
DE59903974D1 (de) * 1998-02-25 2003-02-13 Hans-Peter Koch Offsetdruckverfahren und offsetdruckmaschine
DE29805248U1 (de) * 1998-03-24 1998-05-20 MAN Roland Druckmaschinen AG, 63075 Offenbach Bestäubungseinrichtung in einer Druckmaschine
DE10207865A1 (de) * 2001-03-13 2002-09-19 Heidelberger Druckmasch Ag Ausleger für eine flächige Bedruckstoffe verarbeitende Maschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826083A1 (de) † 1998-06-12 1999-12-16 Koenig & Bauer Ag Puderabsaugung in Auslegern von Bogenrotationsdruckmaschinen

Also Published As

Publication number Publication date
EP1319506A3 (fr) 2004-10-13
EP1319506B1 (fr) 2009-08-12
DE50213760D1 (de) 2009-09-24
DE10161269A1 (de) 2003-06-26
DE10161269B4 (de) 2005-03-17
EP1319506A2 (fr) 2003-06-18

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