EP1502738B1 - Procédé et dispositif pour refroidir le produit à imprimer et la machine à imprimer - Google Patents

Procédé et dispositif pour refroidir le produit à imprimer et la machine à imprimer Download PDF

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Publication number
EP1502738B1
EP1502738B1 EP04017570A EP04017570A EP1502738B1 EP 1502738 B1 EP1502738 B1 EP 1502738B1 EP 04017570 A EP04017570 A EP 04017570A EP 04017570 A EP04017570 A EP 04017570A EP 1502738 B1 EP1502738 B1 EP 1502738B1
Authority
EP
European Patent Office
Prior art keywords
printing
cooling
sheet
guiding
cylinder
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
EP04017570A
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German (de)
English (en)
Other versions
EP1502738A1 (fr
Inventor
Michael Koch
Tilo Steinborn
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
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1502738A1 publication Critical patent/EP1502738A1/fr
Application granted granted Critical
Publication of EP1502738B1 publication Critical patent/EP1502738B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/22Means for cooling or heating forme or impression cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F25/00Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes

Definitions

  • the invention relates to a method and a device for printing substrate and printing machine cooling by means of cooled blown air on sheet-fed rotary printing machines with at least one pneumatic sheet guiding device.
  • cooled blast air for cylinder cooling is for example from the DE 4326835 A1 and DE 4307732 A1 known to show the additional Blasluftkühlbalken limited to the blower cooling air circuit for cooling of rubber and / or plate cylinders, wherein the flowing back from the cylinder surface cooling air streams are sucked on Blasluftkühlbalken again, cooled and then blown again on the cylinder surface.
  • DE 43 07 732 A1 a tempering system for three adjacent cylinders is known, which has an outer Heilirkulationsnikonne in which leakage air of Blasluftkühlbalken from the closed cylinder formed by the adjacent cylinder, the Blasluftkühlbalken and additional boundary surfaces closed air space is returned to the cooling device.
  • DE 10158050 A1 and DE 10158051 A1 additional cooling air blowing devices provided below transfer cylinders and / or before the pressure zone, which may also be partially integrated into existing sheet guiding devices.
  • the object of DE 101 52 593 A1 overcomes the disadvantage of the additional space requirement for the cooling devices by the arrangement of cooling registers in the air stream of the existing blown sheet guide devices below transfer cylinders, before printing columns and above transfer areas in the UV dryer area.
  • the said cooling systems have the disadvantages in common that they are each designed only for specific cooling tasks, ie either serve only for substrate cooling or only for cylinder cooling and have only narrowly limited areas of effect. In particular, when printing temperature-sensitive plastic sheet, it is important, however, to cool both the substrate and the printing material-carrying machine elements intensively.
  • the invention is therefore an object of the invention to provide a method and a device for cooling, which overcome the disadvantages mentioned and thus to create a printing material and printing machine cooling system, the simultaneous protection of the printing material and the printing machine from harmful at low energy and space requirements Temperature influences ensured.
  • the solution according to the invention realizes the simultaneous cooling of sheet-guiding cylinders and substrate with a cooling air flow, which is first cooled in a blown air cooling device, then the surface of a sheet-guiding cylinder sweeps and then serves to Beyakstoff arrangement incorporating the existing pneumatic sheet guiding devices and thereby cools the substrate. Due to the open cooling air duct, part of the cooling air does not reach the sheet guiding devices, but flows into the printing unit, thereby cooling further printing machine elements. In this way, the cooling potential of the cooled blast air is used multiple times. Compared to the arrangement of several independently acting Blas Kunststoffkühl realizeden there are significant advantages in terms of the applied cooling capacity and usable for the printing material and cylinder cooling heat exchange surface.
  • a cooling air storage space is created, from which the cylinder and printing material cooling remove the already pre-cooled air.
  • the printing or coating cylinders are cooled in a particularly effective manner, since in this area no insulating sheet rests on the cylinder jacket.
  • the cooling air paths connecting the cooling system are short and run in close proximity to the cylinder surfaces and the sheet transport path, so that the cooling potential of the cooling air is not limited by the unwanted absorption of heat from not directly involved in the bow guide areas.
  • Fig.1 shows a schematic representation of the printing or coating cylinder 2 of a printing or coating unit of a sheet-fed rotary printing machine in a row with the respective upstream and downstream transfer cylinder 1.3 and the bottom group of the machine frame 4.
  • known pneumatic sheet guiding devices are arranged, of which By way of example, two air cushion guides 12.1, 13, 14 and 17.1, 18, 19 are shown below the transfer cylinders 1, 3 and a comb vacuum cleaner 15, 16 in the transfer area of transfer and impression cylinders 1, 2.
  • the arranged below the transfer cylinder 1.3 two known blast boxes 14 and 19 allow by the air cushion guide the sheet a contactless sheet transport. In particular, when printing plastic films so the scratching of the sheet surface can be prevented at the guide devices.
  • a blowing device 10 is now additionally arranged under one or more pressure cylinders to be cooled 2, which directs an upward cooling air flow to the printing cylinder surface. This location is particularly favorable for the Blas Kunststoffkühlung of the printing cylinder 2, since here the air flow meets directly on the cylinder surface and thereby can fully develop its cooling effect.
  • the blowing device 10 may, for example, be a row of fans arranged next to one another and parallel to the cylinder axis, in whose blast air flow one or more blown air cooling devices 11 are located.
  • the cooling devices 11 are designed as known coolant-flowed cooling surface arrangements (cooling registers).
  • the cooling devices 11 may also be arranged on the suction air side of the fans.
  • the advantage of the cylinder and printing medium near cooling airways is partially lost again.
  • the centrifugal fans 12.1, 17.1 are connected via air ducts 13.1, 18.1 to the blast air boxes 14, 19.
  • the blown air cooling device 11 the blown air is cooled to the cooling temperature and blown by the blower 10 from below against the lateral surface of the printing cylinder 2 and thus initially cools the impression cylinder 2, is deflected there and flows into the lower airspace area on the machine frame 4 from.
  • the cooling air is partially sucked in again by the adjacent centrifugal fans 12.1, 17.1 from the lower air space, passed via the air ducts 13.1, 18.1 to the air boxes 14, 14 and forms the sheet of printing material cooling the air-cushion along the sheet path between the printing units.
  • the supporting cooling air cushion is sucked under the arch of the comb vacuum 15,16 and blown into the lower cooling air space under the pressure cylinder 2.
  • the cooling potential of the cooled blast air is used multiple times, Due to the conveying action of the gripper bars 1.B, 3.B, the cooling air of the air cushion is entrained and enters the sphere of action of the next cooling device on the downstream printing unit. This creates a continuous flow of cooling air along the sheet transport path between the printing units, which intensively cools the substrate and the reduction the cooling capacity from the second cooled printing unit in relation to the first cooled printing unit allows.
  • This first embodiment variant according to Fig.1 is optimally suited for the retrofitting of printing presses with a blown air cooling, because the standard equipment is not changed except for the replacement of the fans 12,17 and the additional blowing and cooling device 10,11, no further installations are required and the scheme due to the openness of the Blas Kunststoff Office no additional requirements. Since the cooling air connection between the individual fans 10,12,16,17 is relatively open, there are advantageously wide margins for the regulation of the individual cooling sections. Furthermore, a relatively high proportion of cooling air can escape from the air space under the pressure cylinders, so that the overlying printing unit areas are also effectively cooled, so that the entire printing press can be cooled with the proposed cooling air system.
  • additional cooling air guide elements L1, L2, L3 reduce the outflow of cooling air from the air space under the pressure cylinder 2 by axially parallel and axially delimiting the cooling air space.
  • the guide elements L1 convey the cooling air conveyed by the blowing device 10 along the lateral surface of the printing cylinder 2 opposite to its direction of rotation.
  • the axial fans 17.2 suck the cooling air from the impression cylinder surface and thus produce the air cushion for the sheet guide by means of air blast box 19.
  • the cooling air guide on the impression cylinder 2 down not by baffles limited, because in this area the cooling air return to the suction side of the blowing device 10 takes place.
  • the comb vacuum cleaner 15,16 which sucks the cooling air from the transfer area between the upstream transfer cylinder 1 and the pressure cylinder 2 and the blast air box 14, the cooling air space is sufficiently delimited to the upstream transfer cylinder 1.
  • the comb vacuum cleaner 15,16 supports the return flow of the cooling air into the suction zone of the blowing device 10, which is additionally limited in the second variant with guide elements L2, L3 to prevent the diffuse outflow of cooling air from the cooling air storage space below the pressure cylinder 2.
  • the fan 12.2 conveys the cooling air flowing back from the pressure cylinder 2 from the ground-near area and creates a further cooling air circuit via the air duct 13.2 to the blown air box 14 and back to the cooling air suction zone of the blowing device 10 via the comb vacuum cleaner 15,16.
  • the second variant of the cooling device according to the invention can also be realized with the usual axial fans 12.2, 17.2.
  • cooling devices 11 can be arranged, for example, in each case on the suction side of the fans 12 and 17 or in the air ducts 13 and 18.
  • the separate parts of the cooling device 11 are expediently coupled to the cooling device 11 via a common coolant circuit and controllable adjusting means.
  • the flexible design of the cooling system allows the combination with additional known pneumatic sheet guiding devices 20.1,20.2, the cooling devices 11, within the first non-coolable by the inventive cooling device sheet path on the impression cylinder 2 before and after the printing zone, the z. B. according to the DE 101 52 593 A1 can be designed, whereby an intensive cooling particularly sensitive substrates (films) on the entire sheet transport path through the printing machine is possible.

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

Claims (14)

  1. Procédé de refroidissement d'un produit d'impression et d'une machine d'impression avec de l'air froid soufflé sur des machines d'impression rotatives feuille à feuille, équipée d'installations de guidage pneumatique de feuilles,
    - au moins une installation de refroidissement par soufflage d'air (11) étant associée à au moins une installation de soufflage (10) et la veine d'air de refroidissement de chaque installation de soufflage (10) est dirigée vers la surface d'au moins un cylindre guidant les feuilles et
    - l'air froid soufflé, après son contact avec la surface d'au moins un cylindre guidant les feuilles, est fourni au moins en partie à la zone d'aspiration d'au moins une installation pneumatique de guidage de feuilles (12, 13, 14 ; 15, 16 ; 17, 18, 19).
  2. Procédé de refroidissement d'un produit d'impression et d'une machine d'impression selon la revendication 1,
    selon lequel
    l'air froid, soufflé, après son contact avec la surface d'un cylindre d'impression (2) est fourni au moins en partie à la zone d'aspiration d'au moins une installation pneumatique de guidage de feuilles (12, 13, 14 ; 15, 16 ; 17, 18, 19) qui est prévue sur les cylindres de guidage de feuilles (1, 3) en amont et/ou en aval du cylindre d'impression (2).
  3. Procédé de refroidissement d'un produit d'impression et d'une machine d'impression selon la revendication 2,
    caractérisé en ce que
    l'air froid, soufflé, est dirigé sur le segment de la surface du cylindre d'impression (2) qui ne guide pas de feuille.
  4. Procédé de refroidissement d'un produit d'impression et d'une machine d'impression selon l'une des revendications 1 à 3,
    caractérisé en ce qu'
    une partie de l'air froid soufflé, refroidit d'autres éléments de machine d'impression ne guidant pas de feuille dans le groupe d'impression.
  5. Installation de refroidissement d'un produit imprimé et d'une machine d'impression avec de l'air froid, soufflé, d'une machine d'impression rotative feuille à feuille équipée de cylindres de guidage de feuilles et d'au moins une installation pneumatique de guidage de feuilles, d'au moins une installation de refroidissement (11) par soufflage d'air et au moins une installation de soufflage (10),
    - au moins une installation de refroidissement par soufflage d'air (11) est associée à au moins une installation de soufflage (10),
    - la veine d'air de refroidissement de chaque installation de soufflage (10) est dirigée sur la surface d'au moins un cylindre (2) guidant les feuilles et
    - la zone d'aspiration d'au moins une installation pneumatique de guidage de feuilles (12, 13, 14 ; 15, 16 ; 17, 18, 19) est associée à la veine d'air de refroidissement de l'installation de soufflage (10) qui revient de la surface d'au moins un cylindre (2) de guidage de feuilles.
  6. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon la revendication 5,
    caractérisée en ce que
    la veine d'air de refroidissement est dirigée par l'installation de soufflage (10) sur la surface ne guidant pas de feuille d'un cylindre d'impression (2) et au moins une installation pneumatique de guidage de feuilles (12, 13, 14 ; 15, 16 ; 17, 18, 19) est prévue sur le ou les cylindres (1, 3) de guidage de feuilles en amont et/ou en aval du ou des cylindres d'impression (2).
  7. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon la revendication 5 ou 6,
    caractérisée en ce que
    l'installation pneumatique de guidage de feuilles (12, 13, 14 ; 15, 16 ; 17, 18, 19) est réalisée chaque fois comme un moyen de guidage par coussin d'air.
  8. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 7,
    caractérisée en ce que
    l'installation de soufflage (10) et l'installation associée de refroidissement par soufflage d'air (11) se trouvent sous le cylindre d'impression (2), parallèlement à l'axe et dirigent une veine d'air de refroidissement sur le cylindre d'impression (2).
  9. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 7,
    caractérisée en ce que
    l'installation de soufflage (10) et l'installation de refroidissement par soufflage d'air (11) soufflent une veine d'air de refroidissement latéralement dans l'intervalle d'air sous le cylindre d'impression (2).
  10. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon la revendication 9,
    caractérisée en ce que
    la zone d'aspiration de l'installation de soufflage (10) avec l'installation associée de refroidissement par soufflage d'air (11) est prévue sous le cylindre d'impression (2) ou sur le côté de la machine d'impression, à l'opposé du côté de soufflage.
  11. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 10,
    caractérisée en ce que
    des éléments supplémentaires de guidage d'air de refroidissement (L1, L2, L3) sont prévus entre l'installation de soufflage (10) et la zone d'aspiration d'au moins une installation pneumatique de guidage de feuilles (12, 13.2, 14 ; 17, 18.2, 19) délimitant le volume d'air de soufflage, parallèlement à l'axe et axialement pour accentuer le couplage de l'air de refroidissement.
  12. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 11,
    caractérisée en ce qu'
    au moins une installation pneumatique de guidage de feuilles (12, 13, 14 ; 17, 18, 19) comporte une installation de refroidissement par soufflage d'air (11).
  13. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 12,
    caractérisée en ce que
    l'installation de refroidissement par soufflage d'air (11) est formée par des surfaces de refroidissement balayées par un agent de refroidissement dans la veine d'air d'aspiration ou de soufflage de l'installation de soufflage (10) ou d'une installation pneumatique de guidage de feuilles (12, 13, 14 ; 17, 18, 19) ou encore d'éléments de guidage d'air de refroidissement (13.2, 18.2).
  14. Installation de refroidissement d'un produit imprimé et d'une machine d'impression selon l'une des revendications 5 à 13,
    comportant des installations pneumatiques supplémentaires de guidage de feuilles (20.1, 20.2) avec des installations associées de refroidissement par soufflage d'air (11) en amont et/ ou en aval de la zone d'impression.
EP04017570A 2003-07-30 2004-07-24 Procédé et dispositif pour refroidir le produit à imprimer et la machine à imprimer Expired - Lifetime EP1502738B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10334657 2003-07-30
DE10334657A DE10334657A1 (de) 2003-07-30 2003-07-30 Verfahren und Einrichtung zur Bedruckstoff- und Druckmaschinenkühlung

Publications (2)

Publication Number Publication Date
EP1502738A1 EP1502738A1 (fr) 2005-02-02
EP1502738B1 true EP1502738B1 (fr) 2009-12-16

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Application Number Title Priority Date Filing Date
EP04017570A Expired - Lifetime EP1502738B1 (fr) 2003-07-30 2004-07-24 Procédé et dispositif pour refroidir le produit à imprimer et la machine à imprimer

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US (1) US7044059B2 (fr)
EP (1) EP1502738B1 (fr)
DE (2) DE10334657A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5089357B2 (ja) * 2006-12-11 2012-12-05 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機で印刷または塗工された枚葉紙を乾かす方法
DE102007056899B4 (de) 2006-12-11 2018-10-25 Heidelberger Druckmaschinen Ag Verfahren zur Trocknung bedruckter oder lackierter Bögen in einer Druckmaschine
EP3647056B1 (fr) 2018-11-05 2020-10-28 Heidelberger Druckmaschinen AG Machine destinée à la fabrication de produits à imprimer
JP7435259B2 (ja) * 2020-05-27 2024-02-21 株式会社リコー 乾燥装置及び液体吐出装置
CN115476573B (zh) * 2022-10-27 2024-08-30 上海南朝印刷有限公司 一种印刷设备用印刷辊冷却装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9017795U1 (de) * 1990-10-08 1992-03-12 MAN Roland Druckmaschinen AG, 6050 Offenbach Thermoregler für eine um einen Druckformzylinder gelegte Druckform für wasserlosen Offset-Druck
DE4307732A1 (de) * 1993-03-11 1994-09-15 Baldwin Gegenheimer Gmbh Temperierungsvorrichtung für Rotationskörper in Druckwerken
DE4326835A1 (de) * 1993-08-10 1995-02-16 Baldwin Gegenheimer Gmbh Temperierungssystem für Druckmaschinenzylinder
DE4335097C2 (de) * 1993-10-14 1999-02-25 Baldwin Grafotec Gmbh Vorrichtung zum Temperieren von Druckmaschinenzylindern und -walzen
DE19651406C1 (de) * 1996-12-11 1998-06-10 Roland Man Druckmasch Trocknereinheit in einer Druckmaschine
DE19810387C1 (de) * 1998-03-11 1999-07-29 Autz & Herrmann Maschf Bogenleiteinrichtung
WO2001032423A1 (fr) * 1999-10-29 2001-05-10 Daniel Bostrack Systeme de refroidissement pour cylindre d'impression
DE10152593A1 (de) * 2001-10-24 2003-05-08 Koenig & Bauer Ag Einrichtung zur Bedruckstoff- und Druckwerkskühlung mittels gekühlter Blasluft an Bogenrotationsdruckmaschinen
DE10158051A1 (de) * 2001-11-27 2003-06-05 Roland Man Druckmasch Verfahren und Vorrichtung zum Abkühlen eines Bedruckstoffes in einer Rotationsdruckmaschine
DE10158050A1 (de) * 2001-11-27 2003-06-05 Roland Man Druckmasch Verfahren und Vorrichtung zum Abkühlen eines Bedruckstoffes in einer Rotationsdruckmaschine

Also Published As

Publication number Publication date
EP1502738A1 (fr) 2005-02-02
DE10334657A1 (de) 2005-02-17
DE502004010509D1 (de) 2010-01-28
US7044059B2 (en) 2006-05-16
US20050115432A1 (en) 2005-06-02

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