CN111204125A - Coating or printing equipment for UV curing of electrodeless lamp - Google Patents
Coating or printing equipment for UV curing of electrodeless lamp Download PDFInfo
- Publication number
- CN111204125A CN111204125A CN202010133735.7A CN202010133735A CN111204125A CN 111204125 A CN111204125 A CN 111204125A CN 202010133735 A CN202010133735 A CN 202010133735A CN 111204125 A CN111204125 A CN 111204125A
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- CN
- China
- Prior art keywords
- coating
- unit
- electrodeless lamp
- printing
- lamp
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- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 238000003848 UV Light-Curing Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052753 mercury Inorganic materials 0.000 abstract description 6
- 238000001723 curing Methods 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007774 anilox coating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- B41F23/0403—Drying webs
- B41F23/0406—Drying webs by radiation
- B41F23/0409—Ultra-violet dryers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
Abstract
The invention discloses coating or printing equipment for UV curing of an electrodeless lamp, which comprises an unreeling unit, an unreeling traction unit, a coating or printing unit, a reeling traction unit and a reeling unit which are sequentially arranged, wherein the electrodeless lamp is arranged at the output end or the rear part of the coating or printing unit; the electrodeless lamp comprises a fixed seat, wherein a microwave generator, a waveguide device, a lamp tube and a shielding net are arranged on the fixed seat, the waveguide device is provided with an inner cavity with a downward opening, an output end of the microwave generator and the lamp tube are both positioned in the inner cavity, the shielding net is arranged at the opening of the inner cavity, and a resonant cavity is formed among the output end of the microwave generator, the waveguide device and the shielding net. The electrodeless lamp has higher irradiance and can improve the coating or printing efficiency, the electrodeless lamp has lower heat radiation than a mercury lamp and can be used for curing temperature-sensitive materials, the electrodeless lamp consisting of a microwave generator, a waveguide device and a lamp tube has simple structure, slow light decay and longer service life, and the influence on production and processing caused by frequent replacement of a UV light source is avoided.
Description
Technical Field
The invention relates to a coating or printing device for UV curing of an electrodeless lamp.
Background
Traditional coating equipment or printing equipment all adopt solvent nature coating or water based paint to coat, through hot air drying, then the coiling after the cooling, these coating equipment or printing equipment lead to the residual solvent of product to exceed standard easily, adopt hot air drying moreover, heating power is big, and the energy consumption is high, and the exhaust still pollutes the environment.
For this reason, coating equipment or printing equipment using a UV light source instead of hot air drying is currently on the market, but the existing UV light sources are mainly of two types, namely, an LED lamp and a mercury lamp, and the light source energy conversion rates of the two types of UV light sources are both less than 30%, and the light source attenuation rate is high in a normal use state. The mercury lamp has high heat radiation on the surface of the coating material, easily causes the base material to be stretched to influence the product quality, can not be used for curing the temperature-sensitive material, has short service life and often needs to be stopped and replaced; the low irradiance of LED lamps results in slow coating printing rates and does not guarantee the quality of UV curing of thicker coated products.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide coating or printing equipment for performing UV curing by using an electrodeless lamp, wherein the electrodeless lamp has higher irradiance and can improve the coating or printing efficiency, the electrodeless lamp has lower heat radiation than a mercury lamp, the electrodeless lamp can be used for curing temperature-sensitive materials, has slow light decay and longer service life, and avoids the influence on the production rate caused by frequent replacement of a UV light source.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an electrodeless lamp UV cured coating or printing apparatus comprising: the device comprises an unreeling unit, an unreeling traction unit, a coating or printing unit, a reeling traction unit and a reeling unit which are sequentially arranged along the conveying direction of a base material, wherein an electrodeless lamp is arranged at the output end or the rear part of the coating or printing unit; the electrodeless lamp comprises a fixed seat, wherein a microwave generator, a waveguide device, a lamp tube and a shielding net are arranged on the fixed seat, the waveguide device is provided with an inner cavity with a downward opening, the output end of the microwave generator and the lamp tube are positioned in the inner cavity, the shielding net is arranged at the opening of the inner cavity, and a resonant cavity is formed among the output end of the microwave generator, the waveguide device and the shielding net. The coating or printing equipment utilizes the electrodeless lamp to replace a common UV light source, the electrodeless lamp has higher irradiance and lower heat radiation than a mercury lamp, can be used for curing temperature-sensitive materials, and the electrodeless lamp consisting of a microwave generator, a waveguide device and a lamp tube has the advantages of simple structure, slow light decay and longer service life, and avoids the influence on production and processing caused by frequent replacement of the UV light source.
In one embodiment of the invention, the coating or printing unit is a coating unit.
Preferably, when the coating or printing unit is a coating unit, a frame is arranged between the coating unit and the winding and drawing unit, a first tensioning roller group used for tensioning the base material between the coating unit and the winding and drawing unit is arranged on the frame, and the electrodeless lamp is mounted on the frame and faces to the surface of the first tensioning roller group. The structure is beneficial to debugging or replacing the electrodeless lamp independently, and the influence on other mechanisms is avoided.
In another embodiment of the invention, the coating or printing units comprise a plurality of printing units positioned between the unreeling traction unit and the reeling traction unit, a second tensioning roller set used for tensioning and conveying the base material is arranged between adjacent printing units, and the output end of each printing unit is provided with the electrodeless lamp. The electrodeless lamp can be suitable for UV curing in a coating mode and can also be suitable for UV curing in a printing mode.
In some embodiments of the invention, the microwave generator is a magnetron.
In some embodiments of the present invention, the fixing base is a box, the microwave generator, the waveguide device and the lamp tube are all located inside the box, the box has a gas channel communicated with the outside, and a heat dissipation assembly communicated with the inside of the box is arranged on a side wall of the box. The heat dissipation assembly can exchange the gas inside the box body with the outside through the gas channel, so that the service life of the lamp tube is prolonged.
Preferably, an embedded groove is formed in an opening of the inner cavity, the shielding net is detachably mounted in the embedded groove, a reflector located above the shielding net is further arranged in the embedded groove, an arc-shaped groove is formed in the illuminator, and the lamp tube is located in the arc-shaped groove.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is an exploded view of an electrodeless lamp.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
Referring to fig. 1 or fig. 2, an electrodeless lamp UV-cured coating or printing apparatus of the present invention comprises: the device comprises an unreeling unit 10, an unreeling traction unit 20, a coating or printing unit 30, a reeling traction unit 40 and a reeling unit 50 which are sequentially arranged along the conveying direction of a substrate, wherein an electrodeless lamp 60 is arranged at the output end of the coating or printing unit 30 or at the rear part of the coating or printing unit 30; referring to fig. 3, the electrodeless lamp 60 includes a fixed base 61, a microwave generator 62, a waveguide device 63, a lamp tube 64 and a shielding net 65 are arranged on the fixed base 61, the waveguide device 63 has an inner cavity with a downward opening, the output end of the microwave generator 62 and the lamp tube 64 are both located in the inner cavity, the shielding net 65 is installed at the opening of the inner cavity, a resonant cavity is formed among the output end of the microwave generator 62, the waveguide device 63 and the shielding net 65, and the shielding net 65 can limit an electromagnetic field in the inner cavity. The electrodeless lamp 60 is used for replacing a common UV light source, the electrodeless lamp 60 is high in irradiance and low in heat radiation compared with a mercury lamp, the electrodeless lamp 60 can be used for curing temperature-sensitive materials, the electrodeless lamp 60 composed of the microwave generator 62, the waveguide device 63 and the lamp tube 64 is simple in structure, slow in light decay and long in service life, and production and processing are prevented from being influenced by frequent replacement of the UV light source.
Referring to fig. 1, in one embodiment of the present invention, the coating or printing unit 30 is a coating unit. The mode of the coating unit can be comma blade coating, and also can be other coating modes, such as anilox coating, micro-gravure coating, multi-roll coating, wire rod coating and the like.
Preferably, when the coating or printing unit 30 is a coating unit, a frame 7 is disposed between the coating unit and the winding and drawing unit 40, a first tensioning roller group 71 for tensioning the substrate located between the coating unit and the winding and drawing unit 40 is disposed on the frame 7, and the electrodeless lamp 60 is mounted on the frame 7 and faces to the surface of the first tensioning roller group 71. The above structure facilitates the individual debugging or replacement of the electrodeless lamp 60, avoiding the influence on other mechanisms.
Referring to fig. 2, in another embodiment of the present invention, the coating or printing unit 30 includes a plurality of printing units 31 disposed between the unwinding drawing unit 20 and the winding drawing unit 40, a second tensioning roller group 8 for tensioning and transferring the substrate is disposed between adjacent printing units 31, and the output end of each printing unit 31 is provided with the electrodeless lamp 60. The electrodeless lamp 60 is suitable for UV curing in both the coating system and the printing system.
In some embodiments of the invention, the microwave generator 62 is a magnetron with an antenna end projecting into the cavity of the waveguide 63.
Referring to fig. 3, in some embodiments of the present invention, the fixing base 61 is a box, the microwave generator 62, the waveguide 63 and the lamp 64 are all located inside the box, the box has a gas passage communicating with the outside, and a heat dissipation assembly 66 communicating with the inside of the box is disposed on a side wall of the box. Here, the heat dissipating member 66 is a blower installed on a sidewall of the cabinet, the air passage is a gap between adjacent walls of the cabinet, and the heat dissipating member 66 can exchange air inside the cabinet with the outside through the air passage, thereby extending the life of the lamp 64.
Referring to fig. 3, preferably, an opening of the inner cavity is provided with an embedded groove 631, the shielding mesh 65 is detachably installed in the embedded groove 631, the embedded groove 631 is further provided with a reflector 67 located above the shielding mesh 65, the reflector is provided with an arc-shaped groove, and the lamp 64 is located in the arc-shaped groove.
The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.
Claims (7)
1. An electrodeless lamp UV cured coating or printing apparatus comprising:
the device comprises an unreeling unit (10), an unreeling traction unit (20), a coating or printing unit (30), a reeling traction unit (40) and a reeling unit (50) which are sequentially arranged along the conveying direction of a base material, wherein an electrodeless lamp (60) is arranged at the output end or the rear part of the coating or printing unit (30);
electrodeless lamp (60) are including fixing base (61), be equipped with microwave generator (62), waveguide device (63), fluorescent tube (64) and shielding net (65) on fixing base (61), waveguide device (63) have an opening decurrent inner chamber, the output of microwave generator (62) with fluorescent tube (64) all are located the inner chamber, shielding net (65) are installed the opening part of inner chamber, constitute the resonant cavity between the output of microwave generator (62), waveguide device (63) and shielding net (65).
2. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 1, wherein:
the coating or printing unit (30) is a coating unit.
3. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 2, wherein:
coating unit with be provided with a frame (7) between rolling traction unit (40), be equipped with on frame (7) and be used for the tensioning to be located coating unit with first tensioning roller set (71) of substrate between rolling traction unit (40), electrodeless lamp (60) are installed on frame (7) and towards the surface of first tensioning roller set (71).
4. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 1, wherein:
the coating or printing unit (30) comprises a plurality of printing units (31) located between the unreeling traction unit (20) and the reeling traction unit (40), a second tensioning roller set (8) used for tensioning and conveying base materials is arranged between the adjacent printing units (31), and the output end of each printing unit (31) is provided with one electrodeless lamp (60).
5. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 1, wherein:
the microwave generator (62) is a magnetron.
6. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 1, wherein:
the fixing seat (61) is a box body, the microwave generator (62), the waveguide device (63) and the lamp tube (64) are all located inside the box body, the box body is provided with a gas channel communicated with the outside, and a heat dissipation assembly (66) communicated with the inside of the box body is arranged on the side wall of the box body.
7. An electrodeless lamp UV curable coating or printing apparatus as claimed in claim 1, wherein:
the opening part of inner chamber is equipped with one and inlays dress groove (631), shielding net (65) detachably installs in inlay dress groove (631), still be equipped with in inlay dress groove (631) and be located reflector (67) of shielding net (65) top, be equipped with an arc wall on the illuminator, fluorescent tube (64) are located in the arc wall.
Priority Applications (1)
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CN202010133735.7A CN111204125A (en) | 2020-03-02 | 2020-03-02 | Coating or printing equipment for UV curing of electrodeless lamp |
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CN202010133735.7A CN111204125A (en) | 2020-03-02 | 2020-03-02 | Coating or printing equipment for UV curing of electrodeless lamp |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111645404A (en) * | 2020-06-24 | 2020-09-11 | 中山优莱特印刷机械有限公司 | Ultraviolet curing flexographic printing machine |
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Publication number | Priority date | Publication date | Assignee | Title |
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