EP4098447B1 - Verarbeitungsmaschine mit einer trocknungsvorrichtung und verfahren zum betreiben einer trocknungsvorrichtung - Google Patents

Verarbeitungsmaschine mit einer trocknungsvorrichtung und verfahren zum betreiben einer trocknungsvorrichtung Download PDF

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Publication number
EP4098447B1
EP4098447B1 EP22185084.5A EP22185084A EP4098447B1 EP 4098447 B1 EP4098447 B1 EP 4098447B1 EP 22185084 A EP22185084 A EP 22185084A EP 4098447 B1 EP4098447 B1 EP 4098447B1
Authority
EP
European Patent Office
Prior art keywords
air
radiation source
blower
processing machine
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22185084.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4098447A1 (de
Inventor
Maik Walter
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
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Koenig and Bauer AG
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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP4098447A1 publication Critical patent/EP4098447A1/de
Application granted granted Critical
Publication of EP4098447B1 publication Critical patent/EP4098447B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044Drying sheets, e.g. between two printing stations
    • B41F23/045Drying sheets, e.g. between two printing stations by radiation
    • B41F23/0453Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0406Drying webs by radiation
    • B41F23/0409Ultraviolet dryers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0483Drying combined with cooling

Definitions

  • a UV irradiation device in which a first flow of cooling air is sucked into the housing on the sides via air inlet openings in the outer wall in order to cool the bulkhead system from the outside.
  • the cooling air is routed along the housing wall into a central suction duct and from there, via a collector, to a fan that promotes the entire flow of cooling air for the UV irradiation device.
  • a second flow of cooling air is collected in the area of the radiation source by a long-necked suction duct and fed into the collector via a throttle.
  • a disadvantage of this solution is that this exhaust air cooling does not adequately cool the underside of the radiation source.
  • the invention has the advantage that an alternative processing machine with a drying device or an alternative method for operating a drying device in a processing machine is created.
  • the cooling on preferably powerful dryers in processing machines, such as substrate or printing material processing machines, in particular printing presses or sheet processing machines, is improved.
  • the cooling of a UV radiator on the underside is also particularly preferably further improved.
  • a drying device for example the UV module, or the radiation source introduced or blown.
  • This can be done by air guiding elements, such as metal sheets, and/or blown air openings, in particular nozzles.
  • the air introduced or blown in on both sides can be either a partial mass or at least approximately all of the cooling air discharged in the UV module.
  • the air volume flow of the air that is additionally introduced or blown in by the blast air system can preferably be between 20% and 50% of the total cooling air volume flow. Accordingly, the proportion of inflowing ambient air can be between 80% and 50%. In particular, a ratio of at least approximately 1/3 of air that is additionally introduced or blown in by the blast air system and of at least approximately 2/3 of inflowing ambient air is sought.
  • Each of the printing units can, for example, include a plate cylinder, which is inked by an inking unit with the printing ink used.
  • This inked plate cylinder transfers the printing ink appropriate to the motif onto a rubber cylinder provided with a rubber blanket, which forms a printing gap with a printing cylinder of a sheet-fed printing press that conveys the substrate sheet.
  • the corresponding motif is transferred from the inked rubber blanket of the rubber cylinder to the substrate sheet.
  • the 3 shows a UV module 1, which accommodates a UV radiation source, in particular a gas discharge tube filled with mercury vapor, extending longitudinally transversely to the conveying direction of the processing material, for example the printing material or sheet 4.
  • the UV module 1 can, for example, be assigned to an insertion shaft of the machine, which preferably also has electrical or pneumatic connections for supply. The corresponding electrical or pneumatic connections can be provided in the slide-in slot, for example.
  • a blown air system 13 is assigned to the UV module 1, which extends in particular over the maximum material width to be processed by the machine, for example the width of the printing material.
  • the blast air system 13 has an overpressure supply, which includes, for example, an overpressure connection or preferably an overpressure generator.
  • the gap formed by the blast air openings 16 can also be designed to be adjustable, so that, for example, a setting for performance classes and/or an adaptation to installation spaces or machines can be carried out.
  • a gap of 1 mm to 10 mm, particularly preferably of 2 mm to 6 mm and very particularly preferably of at least approximately 4 mm, opened by the blown air openings 16, is preferably set.
  • the 8 shows the cross section of the UV module 1 according to the section AA of the previous figure with the alternative blown air system 13.
  • the compressed air supplied via the respective compressed air connection 18 is distributed over the respective air duct 15 and exits via the blown air openings 16 in the area of the air inlet opening 10 of the UV -module 1 off.
  • the blast air jets 17 can each be generated by individual blast air openings 16 or by continuous slot nozzles, which extend, for example, over the width of the processing material or printing material.
  • the Blown air jets 17 are in particular aligned towards one another in a plane in such a way that they influence, in particular narrow or constrict, the ambient air flow 11 flowing into the housing profile 8 .
  • the influencing of the ambient air flow 11 preferably takes place analogously in such a way that the ambient air flow 11 cools the underside of the UV radiator 2 facing the processing material or printing material with increased intensity.
  • the 9 shows an elongate UV emitter 2 designed as a mercury vapor lamp, for example, with a cooling system or blast air system 13 acting exclusively between electrodes 19.
  • the UV emitter 2 designed as a medium-pressure mercury vapor lamp, for example, has the two ends arranged in a glass body 20 that are contacted or .
  • the electrodes 19 can be controlled, for example, by an integrated or external pilot control device.
  • Each of the two spaced-apart electrodes 19 lies at least partially in a plane E1, E2 which the elongated UV radiator 2, for example the mercury vapor lamp, intersects as an idealized common normal (as an orthogonal vector).
  • the planes E1, E2 are to be understood as idealized parallel planes spaced apart from one another in space, with the surfaces of the electrodes 19 at least touching the planes E1, E2.
  • a cooling area B of the cooling system or blast air system 13 is located in particular exclusively between the mutually facing electrode surfaces spanning the planes E1, E2.
  • the cooling area B of the cooling system or blast air system 13 with a maximum cooling capacity is preferably formed or limited here by the two levels E1, E2.
  • the UV radiator 2 can be operated with a power of between approximately 80 W/cm and approximately 200 W/cm.
  • the blown air system 13 can be activated or switched on depending on the power.
  • the blown air system 13 can only be activated at a medium output, for example at approximately 120 to 140 W/cm.
  • the blown air system 13 can be completely deactivated below a radiator output of, for example, 120 to 140 W/cm.
  • the blast air system 13 can just be activated, for example.
  • the effect of the blast air system 13 can preferably be increased with the radiator power.
  • the blown air can be adjusted in particular according to a characteristic map, which can have local maxima and/or minima, for example.
  • the blown air can be set as a function of a curve defined, for example, between 120 W/cm and 200 W/cm.
  • a function for operating the blast air system 13 as a function of the radiator power can be predetermined and/or modified, in particular as a function of the machine.
  • the effect of the blown air system 13 can also be set individually and/or also be controlled or regulated, for example, according to the radiator output.
  • the current radiator power can be known to a control device, in particular the machine control, or can be determined by a sensor system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Washing And Drying Of Tableware (AREA)
EP22185084.5A 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einer trocknungsvorrichtung und verfahren zum betreiben einer trocknungsvorrichtung Active EP4098447B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018206154.8A DE102018206154B4 (de) 2018-04-20 2018-04-20 Trocknungsvorrichtung für eine bedruckstoffverarbeitende Maschine und Verfahren zum Betreiben einer Trocknungsvorrichtung
EP19719223.0A EP3781404B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben
PCT/EP2019/059858 WO2019201960A1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben dieses trockners

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP19719223.0A Division-Into EP3781404B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben
EP19719223.0A Division EP3781404B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben

Publications (2)

Publication Number Publication Date
EP4098447A1 EP4098447A1 (de) 2022-12-07
EP4098447B1 true EP4098447B1 (de) 2023-06-28

Family

ID=66251764

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22185084.5A Active EP4098447B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einer trocknungsvorrichtung und verfahren zum betreiben einer trocknungsvorrichtung
EP19719223.0A Active EP3781404B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19719223.0A Active EP3781404B1 (de) 2018-04-20 2019-04-16 Verarbeitungsmaschine mit einem strahlungstrockner und verfahren zum betreiben

Country Status (8)

Country Link
US (1) US11046070B2 (ja)
EP (2) EP4098447B1 (ja)
JP (1) JP6931133B2 (ja)
CN (1) CN112105505B (ja)
DE (1) DE102018206154B4 (ja)
ES (2) ES2951178T3 (ja)
PL (2) PL3781404T3 (ja)
WO (1) WO2019201960A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113334925B (zh) * 2021-06-10 2022-10-18 海盐西美印刷股份有限公司 一种包装纸卡uv油墨印刷固化干燥装置
CN216631458U (zh) * 2021-11-05 2022-05-31 江苏时代新能源科技有限公司 风嘴及涂布机

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JPS5871593A (ja) * 1981-10-23 1983-04-28 日本電池株式会社 放電灯空冷装置
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JPS62294439A (ja) * 1986-06-11 1987-12-21 Japan Storage Battery Co Ltd 高出力紫外線ランプの冷却方法
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DE10247464A1 (de) 2002-10-11 2004-04-22 Eltosch Torsten Schmidt Gmbh Trocknervorrichtung
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Also Published As

Publication number Publication date
CN112105505A (zh) 2020-12-18
EP3781404B1 (de) 2023-04-05
ES2945810T3 (es) 2023-07-07
EP3781404A1 (de) 2021-02-24
CN112105505B (zh) 2021-07-20
JP6931133B2 (ja) 2021-09-01
EP4098447A1 (de) 2022-12-07
US11046070B2 (en) 2021-06-29
DE102018206154B4 (de) 2021-10-28
ES2951178T3 (es) 2023-10-18
US20210001621A1 (en) 2021-01-07
DE102018206154A1 (de) 2019-10-24
PL4098447T3 (pl) 2023-09-11
JP2021509465A (ja) 2021-03-25
PL3781404T3 (pl) 2023-08-21
WO2019201960A1 (de) 2019-10-24

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