EP2089228A1 - Kühlsystem für druckfarbenhärtungsvorrichtung - Google Patents

Kühlsystem für druckfarbenhärtungsvorrichtung

Info

Publication number
EP2089228A1
EP2089228A1 EP07848421A EP07848421A EP2089228A1 EP 2089228 A1 EP2089228 A1 EP 2089228A1 EP 07848421 A EP07848421 A EP 07848421A EP 07848421 A EP07848421 A EP 07848421A EP 2089228 A1 EP2089228 A1 EP 2089228A1
Authority
EP
European Patent Office
Prior art keywords
housing
lamp
fan
cooling system
cooled
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
EP07848421A
Other languages
English (en)
French (fr)
Other versions
EP2089228B1 (de
Inventor
Malcolm Rae
James Hicks
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.)
Gew EC Ltd
Original Assignee
Gew EC Ltd
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 Gew EC Ltd filed Critical Gew EC Ltd
Publication of EP2089228A1 publication Critical patent/EP2089228A1/de
Application granted granted Critical
Publication of EP2089228B1 publication Critical patent/EP2089228B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • 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
    • 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
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers
    • 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
    • B41F23/0486—Particular types of dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00218—Constructional details of the irradiation means, e.g. radiation source attached to reciprocating print head assembly or shutter means provided on the radiation source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
    • 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

Definitions

  • This invention relates to a cooling system for ink curing apparatus.
  • Ink curing apparatus comprising a housing containing a lamp partially surrounded by reflectors to direct UV light onto a substrate to cure ink are well known.
  • Such apparatus require highly efficient cooling systems due to the intense heat required to be emitted from the lamp.
  • the present invention seeks to provide an improved cooling system that is fully self-contained within a single housing and in which hot air is cooled as it flows over the apparatus components before being recycled through the system.
  • an ink curing apparatus having a fully self-contained cooling system, the apparatus comprising a single housing, in one end of which is provided a lamp and in the other end of which is provided a fan, the apparatus having defined therein a path to direct air emitted from the lamp, in use, over cooled surfaces within the housing towards the fan, and having further defined therein a further path to direct air over cooled surfaces within the housing from the fan towards the lamp.
  • the cooled surfaces within the housing are cooled by water channelled through at least one pipe within the housing.
  • the cooled surfaces include surfaces of at least one reflector which at least partially surrounds the lamp.
  • the or each pipe includes inner and outer discrete channels.
  • the apparatus comprises a single housing 10 a lower end 12 of which contains a lamp 14 partially surrounded by reflectors 16, 18.
  • a substrate 20 which carries ink for curing/drying is transported through the apparatus directly beneath the lamp 14.
  • UV light is directed on to the substrate for a period of time sufficient to dry/cure the ink on the substrate 20.
  • An upper end 22 of the housing 10 comprises a fan 24.
  • the ancillary parts of the apparatus within the housing 10, including the surfaces of each reflector 16, 18 are water-cooled using a "parallel system".
  • the water pipes 26 include inner and outer channels 26a, 26b. In use, cold water is directed into the apparatus through the inner channels 26a of the pipes 26 before being reversed such that the water, once hot, is directed out of the apparatus via the outer channels 26b of the pipes 26.
  • Using such a parallel system allows a back plate of the apparatus to require only one inlet and one outlet for coolant.
  • the inlet and outlet are attached to a baffle plate (not shown) within the apparatus, whereupon the inlet and outlet are divided into a plurality of pipes 26 which extend throughout the apparatus to cool all the ancillary parts.
  • the lamp 14 emits heat at around 750 0 C.
  • the UV heat is directed onto the substrate 20.
  • a portion of the IR heat is absorbed into the surfaces of the reflectors 16, 18.
  • the remaining IR is drawn upwardly through the housing via the fan 24.
  • the path of the IR is shown by arrows in the Figure.
  • the air is drawn over top surfaces 28, 30 of the reflectors 16, 18 which are kept cool via the water pipes 26.
  • the apparatus is designed in such a way as to direct the hot air from the lamp 14 over as many cooled surfaces of the ancillary components as possible. Tests have shown that, by the time air emitted from the lamp 14, and travelling over the cooled surfaces as shown, reaches the fan 24 it has reduced in temperature to around 7O 0 C. The air is now drawn over cooled surfaces 32 of the upper end 22 of the housing 10 before being directed over cooled surfaces of the sides of the housing 10 back into the lower end 12. As the air travels down the sides of the housing 10, the temperature decreases progressively. Finally, the air, now at around 32°C, is fed back towards the lamp 14.
  • the fan 24 only requirement of the fan 14 is to provide cooling for the lamp 14.
  • the fan 14 does not need to provide cooling to the other ancillary components of the apparatus as they are cooled separately by the water pipes 26. Consequently, the size of the fan can be greatly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Coating Apparatus (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP07848421A 2006-12-01 2007-11-30 Kühlsystem für druckfarbenhärtungsvorrichtung Active EP2089228B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0624086A GB2444328B (en) 2006-12-01 2006-12-01 Cooling system for ink curing apparatus
PCT/GB2007/004603 WO2008065420A1 (en) 2006-12-01 2007-11-30 Cooling system for ink curing apparatus

Publications (2)

Publication Number Publication Date
EP2089228A1 true EP2089228A1 (de) 2009-08-19
EP2089228B1 EP2089228B1 (de) 2010-09-29

Family

ID=37671736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07848421A Active EP2089228B1 (de) 2006-12-01 2007-11-30 Kühlsystem für druckfarbenhärtungsvorrichtung

Country Status (5)

Country Link
EP (1) EP2089228B1 (de)
AT (1) ATE482826T1 (de)
DE (1) DE602007009564D1 (de)
GB (1) GB2444328B (de)
WO (1) WO2008065420A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700039A1 (de) * 2008-12-01 2010-06-15 Uviterno Ag Vorrichtung zum bestrahlen eines substrats
GB2468703A (en) * 2009-03-19 2010-09-22 Gew Ink curing apparatus with water cooled heat exchanging means
GB2495901B (en) * 2011-08-08 2014-03-12 Gew Ec Ltd Improved housing for ink curing apparatus
GB2495161B (en) * 2012-02-28 2013-08-07 Gew Ec Ltd Ink curing apparatus
CN109774303A (zh) * 2019-01-23 2019-05-21 陕西北人印刷机械有限责任公司 一种混风箱及其控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2935384A (en) * 1983-06-24 1985-01-03 Screen Printing Supplies Pty. Ltd. Heat curing apparatus
JP3522333B2 (ja) * 1993-06-29 2004-04-26 岩崎電気株式会社 紫外線照射装置
US6185840B1 (en) * 1995-05-04 2001-02-13 Noelle Gmbh Method and apparatus for hardening a layer on a substrate
DE10109061A1 (de) * 2000-03-08 2001-10-04 Nordson Corp Lampenanordnung
WO2004040191A1 (en) * 2002-10-29 2004-05-13 Knud Andreasen Cooling of devices for uv hardening
JP2006350237A (ja) * 2005-06-20 2006-12-28 Sharp Corp 光源装置、ランプハウジング、ランプユニット、及び投影型画像表示装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008065420A1 *

Also Published As

Publication number Publication date
GB2444328A (en) 2008-06-04
GB2444328B (en) 2010-06-09
DE602007009564D1 (de) 2010-11-11
EP2089228B1 (de) 2010-09-29
ATE482826T1 (de) 2010-10-15
GB0624086D0 (en) 2007-01-10
WO2008065420A1 (en) 2008-06-05

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