CN104129160A - Light-emitting diode ultraviolet (LED UV) light source for UV ink curing of sheet-fed offset press - Google Patents
Light-emitting diode ultraviolet (LED UV) light source for UV ink curing of sheet-fed offset press Download PDFInfo
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- CN104129160A CN104129160A CN201410314891.8A CN201410314891A CN104129160A CN 104129160 A CN104129160 A CN 104129160A CN 201410314891 A CN201410314891 A CN 201410314891A CN 104129160 A CN104129160 A CN 104129160A
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Abstract
The invention discloses a light-emitting diode ultraviolet (LED UV) light source for UV ink curing of a sheet-fed offset press. The LED UV light source comprises a substrate provided with a plurality of light-emitting modules. A plurality of UV light-emitting units which are integrated onto the light-emitting modules respectively are LED UV light-emitting semiconductors with the light-emitting wavelength ranging from 200 nm to 450 nm. The light-emitting modules are fixed to the substrate through thermal-conductive adhesive. The UV light-emitting units are integrated to the light-emitting modules by means of series connection and parallel connection. Further, the light-emitting modules are fixed to the substrate by means of series connection and parallel connection, are covered with a cover plate and side plates to form an LED UV curing unit. The LED UV light source with low power and power saving effect overcomes defects of conventional UV mercury lamps, needs low voltage to avoid the problem about production safety, is free of generation of harmful gas such as mercury gas to avoid damages to human bodies and environments, is free of preheating during use and long in service life reaching 25000-30000 hours, is free of shutter components due to the fact that high temperature and preheating are omitted, and accordingly is low in production cost.
Description
Technical field
The present invention relates to a kind of LED UV light source for sheet-fed offset press UV ink solidification.
Background technology
Traditional solvent type ink printing need be dried through mode air-dry or infrared drying, often needs several minutes drying times of tens of hours even, and so easy generation is such as printing quality problems such as set-offs.And employing UV (Ultraviolet, be called for short UV, i.e. ultraviolet ray) ink is implemented printing, under the radiation of ultraviolet light, within the several seconds, ink is with regard to the rapid dry solidification of energy, and the printed matter space of a whole page obtaining is clean, color is saturated, image is exquisite, glossiness is high, the special high speed printing that adapts to, and all kinds of printable fabrics are had to good absorption and mechanical performance, and therefore, nowadays UV ink printing is being widely used.UV ink printing is generally that to utilize wavelength be that as radiation energy, to cause the liquid printing-ink fast transition with chemical reactivity be solid ink for the ultraviolet light of 200～450nm.
At present, the printing of traditional gold card, silver card, plastic sheet, is all to adopt the UV mercury lamp that adds iron mercury and other pernicious gas to solidifying of offset press printing ink.Yet this UV mercury lamp for cured printing ink exists following problem: (1) at UV mercury lamp, the mercury that contains heavy metal, iron and pernicious gas, it is to atmosphere pollution, more serious to the injury of human body and equipment, and harm operating personnel's is healthy; (2) traditional UV mercury lamp, the main 1500V-2000V high drive that adopts, normal is every 20KW left and right, it converts the useful power that ink is played to solidification effect to and only has 1/10th, and necessary preheating, physical life only had about 1000 hours, scrapped heavy metal mercury, the iron in rear fluorescent tube and added argon gas wherein to cause injury without redemption to environment; (3) UV mercury lamp need will just can send ultraviolet ray after intraluminal mercury atomization, temperature needs more than 600 ℃, the ultraviolet ray that is wherein useful on UV ink solidification only has 15%-25%, there is more than 50% infrared ray, thermal discharge is large, to printed matter environment, human body, equipment, has very large harm (4) UV mercury lamp to make reason because of it, non-uniform light in the middle of fluorescent tube two and fluorescent tube, cause printed matter UV ink solidification inhomogeneous, when serious, cause printed matter to scrap in batches; (5) UV mercury lamp is because of its principle of luminosity, can not regulate the send ultraviolet ray spectrum required to UV ink solidification according to the length of the needed spectrum of UV ink solidification and printing format, the length of the curing breadth that unadjustable printed matter UV ink is required, causes very large energy waste.
Summary of the invention
The technical problem to be solved in the present invention is the defect that overcomes prior art, provides that a kind of temperature is low, the LED UV light source for sheet-fed offset press UV ink solidification of ozone free, energy-saving consumption-reducing.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of LED UV light source for sheet-fed offset press UV ink solidification of the present invention, it comprises substrate, is provided with some light emitting modules on described substrate, is integrated with several ultra-violet light-emitting semiconductors on described light emitting module; Described ultra-violet light-emitting semiconductor is LED ultra-violet light-emitting device, and its luminous wave-length coverage is 200nm～450nm.
Further, described light emitting module is fixed on described substrate by heat-conducting glue.
Further, the described light emitting module on described substrate is provided with 30～50.
Further, described in several, the mode of ultra-violet light-emitting monomer by series and parallel connections is integrated on described light emitting module.
Further, some described light emitting modules are fixed on described substrate by the mode of series and parallel connections, and add upper cover plate and side plate composition LED UV solidified cell.
Further, in order to reach better solidification effect and curing rate, described ultra-violet light-emitting monomer is sent out light wavelength and is set to 200nm～450nm.
Further, on described substrate, be provided with limbers, described limbers is strip grooved, the cross section of described limbers is arc or rectangle, can increase greatly the area of water flowing, the water flowing compared to existing technology of the water amount of cooling water has increased several times, so LED UV light source causes LED UV semiconductor to damage because producing high temperature never again.
The present invention, for the LED UV light source of sheet-fed offset press UV ink solidification, adopts two kinds of patterns.The first is with the synthetic luminescence-utraviolet module of ultra-violet light-emitting semiconductor group, then becomes the solidified cell of a microscler ultraviolet ray to UV ink with module assembled.This UV (ultraviolet ray) solidified cell is installed between offset press colour cell and offset press collection forward part, plays the rapid curing of UV (ultraviolet ray) to ink.
The second is to form single ultraviolet lamp pearl with a plurality of ultra-violet light-emitting semiconductors, then is combined into a luminescence-utraviolet module by single ultraviolet lamp pearl, then forms the solidified cell of a microscler ultraviolet ray to UV ink with luminescence-utraviolet module.This UV (ultraviolet ray) solidified cell is installed between offset press colour cell and offset press collection forward part, plays UV (ultraviolet ray) to the rapid curing of UV ink (being dried).
The present invention is for the LED UV light source of sheet-fed offset press UV ink solidification, the light emitting semiconductor device that employing can be sent 200nm-450nm assembles, adopt the mode of series and parallel connections to form a module, then form rectangular luminescence-utraviolet unit lamp panel by a plurality of modules.Can be according to the solidifying requirements assembling of offset press UV ink.With constant-current driving power supply, drive, can, according to the required consolidation zone of print product UV ink, regulate luminous length and the luminous power of LED UV lamp.
The present invention is for the LED UV light source of sheet-fed offset press UV ink solidification, by the luminescence-utraviolet module of series and parallel connections, with heat-conducting glue, be fixed on and can lead to above water-cooled aluminium section bar again after series, parallel, both sides add epipleural and cover plate is assembled into LED UV lamp panel, again LED UV lamp panel is installed between offset press colour cell, light-emitting area is aimed at the printing surface of printed matter, make its UV absorption of inks correct make its curing ultraviolet spectrogram, solidify rapidly, reach solidifying requirements, reduce costs, improve the printing efficiency of offset press to UV print product.
LED UV light source for sheet-fed offset press UV ink solidification provided by the invention, because the quantity of the semi-conductive quantity of ultra-violet light-emitting and light emitting module all can be adjusted, and ultra-violet light-emitting semiconductor and light emitting module all can be controlled separately, thereby can regulate according to the requirement of printed matter the length of light-emitting zone, also can, according to the length of the required wavelength regulation light-emitting zone of UV ink, reach better ink solidification effect.
LED power consumption: single illuminator 3W is 4～5KW through being combined into its power of a UV (ultraviolet ray) solidified cell.Traditional UV solidified cell (mercury lamp) is 21KW, every offset press (with 6 look machines) needs 6 solidified cells, traditional UV solidified cell (mercury lamp) 6*21KW needs 126KW, and LED UV power consumption only needs 6*4～5KW (with 6 look machines) to need 24～30KW, with LED UV solidified cell comparable traditional UV per hour (mercury lamp), save 96～102KW.If every day was by 20 hours, every LED UV for offset press (ultraviolet ray) and traditional UV (mercury lamp) can save 2000 degree electricity.
LED UV (ultraviolet ray) heavy metal free mercury, iron, pollution-free to atmosphere, and its fluorescent tube inner chamber of traditional UV (ultraviolet mercury lamp) must add toxic gas and the metals such as mercury, iron, argon gas.When it is luminous, need high pressure, the high temperature (1600V-2000V) etc. could be by lamp tube starting, the high temperature that atomization produces be all harmful to atmosphere, human body, equipment etc., and needs preheating within 10 minutes, just can reach the solidifying requirements of ultraviolet (UV) to ink.LED UV (ultraviolet ray) does not need preheating time, lights moment can reach the solidifying requirements of ultraviolet ray to 200nm-400nm UV ink.Both can save more again 9.6 degree electricity/minute.
LED UV (ultraviolet ray) life-span is grown (about 25000 hours-30000 hours) especially.Regular maintenance only need to be changed the illuminator of broken parts, do not need whole replacings, and the life-span of traditional (mercury lamps) such as UV only has 800 hours to 1500 hours, damage will the new UV lamp (mercury lamp) of integral replacing, and heavy metal Hg wherein and pernicious gas cause beyond measure destruction to environment.
LED UV (ultraviolet ray) can reach the useful spectrum of 60%-80% to UV ink solidification efficiency.Only have the infrared ray of 5% left and right, other veiling glare of 15% left and right; And traditional ultraviolet (UV) lamp (mercury lamp) has the useful spectrum of 15%-20% to UV ink solidification effect, wherein there are the infrared ray of 50%-60%, other veiling glare of 15% left and right.
The beneficial effect that the present invention reaches is:
LED UV ultraviolet light source for sheet-fed offset press UV ink solidification provided by the invention, has overcome the drawback of traditional UV mercury lamp, and power is low, saves electric energy; Do not produce mercury and pernicious gas, avoid human body and environment to damage; Required voltage is low, avoids producing production safety problem; During use, without preheating, long service life, can reach 25000～30000 hours; Because of without high temperature, without preheating, do not need to install additional shutter part, be reduced to product cost.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of light emitting module;
Fig. 3 is the structural representation of substrate.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1 to Figure 3, a kind of LED UV light source for sheet-fed offset press UV ink solidification of the present invention, it comprises substrate 1, is provided with 30～50 light emitting modules 2 on described substrate 1, is integrated with several ultra-violet light-emitting semiconductors 3 on described light emitting module 2; Described ultra-violet light-emitting monomer 3 is LED ultra-violet light-emitting device, and its luminous wave-length coverage is 200nm～450nm.
Described light emitting module 2 is fixed on described substrate 1 by heat-conducting glue.
Described in several, ultra-violet light-emitting semiconductor 3 is integrated on described light emitting module 2 by the mode of series and parallel connections.
Some described light emitting modules 2 are fixed on described substrate 1 by the mode of series and parallel connections, and add upper cover plate and side plate composition LED UV solidified cell.
On described substrate 1, be provided with limbers 4, described limbers 4 is strip grooved, the cross section of described limbers 4 is arc or rectangle, can increase greatly the area of water flowing, the water flowing compared to existing technology of the water amount of cooling water has increased several times, so LED UV light source causes LED UV semiconductor to cross thermal spalling because producing high temperature never again.
The present invention, for the LED UV ultraviolet light source of sheet-fed offset press UV ink solidification, adopts two kinds of patterns.The first is with the synthetic luminescence-utraviolet module of ultra-violet light-emitting semiconductor group, then becomes the solidified cell of a microscler ultraviolet ray to UV ink with module assembled.This UV (ultraviolet ray) solidified cell is installed between offset press colour cell and offset press collection forward part, plays the rapid curing of UV (ultraviolet ray) to ink.
The second is to form single ultraviolet lamp pearl with a plurality of ultra-violet light-emitting semiconductors, then is combined into a luminescence-utraviolet module by single ultraviolet lamp pearl, then forms the solidified cell of a microscler ultraviolet ray to UV ink with luminescence-utraviolet module.This UV (ultraviolet ray) solidified cell is installed between offset press colour cell and offset press collection forward part, plays UV (ultraviolet ray) to the rapid curing of UV ink (being dried).
The present invention is for the LED UV light source of sheet-fed offset press UV ink solidification, the light emitting semiconductor device that employing can be sent 200nm-450nm assembles, adopt the mode of series and parallel connections to form a module, then form rectangular luminescence-utraviolet unit lamp panel by a plurality of modules.Can be according to the solidifying requirements assembling of offset press UV ink.With constant-current driving power supply, drive, can, according to the required consolidation zone of print product UV ink, regulate luminous length and the luminous power of LED UV lamp.
The present invention is for the LED UV light source of sheet-fed offset press UV ink solidification, by the luminescence-utraviolet module of series and parallel connections, with heat-conducting glue, be fixed on and can lead to above water-cooled aluminium section bar again after series, parallel, both sides add epipleural and cover plate is assembled into LED UV lamp panel, again LED UV lamp panel is installed between offset press colour cell, light-emitting area is aimed at the printing surface of printed matter, make its UV absorption of inks correct make its curing ultraviolet spectrogram, solidify rapidly, reach solidifying requirements, reduce costs, improve the printing efficiency of offset press to UV product.
LED UV ultraviolet light source for sheet-fed offset press UV ink solidification provided by the invention, because the quantity of ultra-violet light-emitting monomer and the quantity of light emitting module all can be adjusted, and ultra-violet light-emitting monomer and light emitting module all can be controlled separately, thereby can regulate according to the requirement of printed matter the length of light-emitting zone, also can, according to the length of the required wavelength regulation light-emitting zone of UV ink, reach better ink solidification effect.
Upper table is the present invention and the figure that contrasts of traditional UV mercury lamp, and as can be seen from the above table, the LED UV light source for sheet-fed offset press ink solidification provided by the invention, has overcome the drawback of traditional UV mercury lamp, and power is low, saves electric energy; Do not produce mercury and other pernicious gases, avoid human body and environment to damage; Voltage is 24V safe voltage, avoids producing production safety problem; During use, without preheating, long service life, can reach 25000～30000 hours; Because of without high temperature, without preheating, do not need to install additional shutter part, be reduced to product cost.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present invention, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. for a LED UV light source for sheet-fed offset press UV ink solidification, it is characterized in that, comprise substrate, on described substrate, be provided with some light emitting modules, on described light emitting module, be integrated with several ultra-violet light-emitting semiconductors; Described ultra-violet light-emitting semiconductor is LED ultra-violet light-emitting device, and its luminous wave-length coverage is 200nm～450nm.
2. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1, is characterized in that, described light emitting module is fixed on described substrate by heat-conducting glue.
3. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1 and 2, is characterized in that, the described light emitting module on described substrate is provided with 30～50.
4. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1, is characterized in that, described in several, ultra-violet light-emitting monomer is integrated on described light emitting module by the mode of series and parallel connections.
5. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1, is characterized in that, some described light emitting modules are fixed on described substrate by the mode of series and parallel connections.
6. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1, is characterized in that, the wavelength of described ultra-violet light-emitting semiconductor light emitting is 200nm～450nm.
7. the LED UV light source for sheet-fed offset press UV ink solidification according to claim 1, is characterized in that, on described substrate, is provided with limbers.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104553297A (en) * | 2014-12-29 | 2015-04-29 | 无锡网圣优威科技有限公司 | LED UV light source used for solidifying flexible or rotation or trademark printing machine UV printing ink |
| CN104589784A (en) * | 2014-12-29 | 2015-05-06 | 无锡网圣优威科技有限公司 | Screen printer with LED UV ink curing light sources |
| CN104741302A (en) * | 2014-12-29 | 2015-07-01 | 无锡网圣优威科技有限公司 | UV oil paint solidification device for spraying industry |
| CN105856828A (en) * | 2016-03-29 | 2016-08-17 | 深圳市虎成科技有限公司 | PCB ink curing method and curing machine |
| CN106671566A (en) * | 2016-11-11 | 2017-05-17 | 长兴海普机械科技有限公司 | Offset printer with enhanced drying system |
| CN106739465A (en) * | 2016-12-19 | 2017-05-31 | 上海舜哲机电科技有限公司 | A kind of LED chip |
| CN106739469A (en) * | 2017-02-07 | 2017-05-31 | 深圳市邦钰机电设备有限公司 | Non-pole light regulating printing machine and cure system based on LED UV |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104553297A (en) * | 2014-12-29 | 2015-04-29 | 无锡网圣优威科技有限公司 | LED UV light source used for solidifying flexible or rotation or trademark printing machine UV printing ink |
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