CN104723695A - UVLED curing light source, jet drawing device with same, and driving control method of jet UVLED curing light source - Google Patents
UVLED curing light source, jet drawing device with same, and driving control method of jet UVLED curing light source Download PDFInfo
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- CN104723695A CN104723695A CN201510075271.8A CN201510075271A CN104723695A CN 104723695 A CN104723695 A CN 104723695A CN 201510075271 A CN201510075271 A CN 201510075271A CN 104723695 A CN104723695 A CN 104723695A
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- curing light
- shower nozzle
- uvled curing
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000007921 spray Substances 0.000 claims description 31
- 238000004020 luminiscence type Methods 0.000 claims description 28
- 230000001680 brushing effect Effects 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 15
- 238000010422 painting Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 53
- 239000000976 ink Substances 0.000 description 39
- 238000007711 solidification Methods 0.000 description 14
- 230000008023 solidification Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010985 leather Substances 0.000 description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002350 accommodative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
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- 238000004643 material aging Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- B41J11/00212—Controlling the irradiation means, e.g. image-based controlling of the irradiation zone or control of the duration or intensity of the irradiation
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- 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
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Ink Jet (AREA)
Abstract
The invention discloses a UVLED curing light source, a jet drawing device with the light source, and a driving control method of the UVLED curing light source. The light source comprises a rectangular light-emitting window, a UVLED lamp array and a driving control circuit module, wherein the rectangular light-emitting window is filled with the UVLED lamp array, the driving control circuit module is provided with a control signal input end used for receiving an external control instruction, the rectangular light-emitting window is divided into two or more light-emitting areas which are arranged in the direction of the long sides of the rectangular light-emitting window, the driving control circuit module is provided with a power source output end corresponding to each light-emitting area, the power source output ends are electrically connected with the power supply ends of UVLED lamps located in the corresponding light-emitting areas, and the driving control circuit module can adjust power source power output by the power source output ends according to the received external control instruction. The light source has the advantages that light-emitting energy density can be independently adjusted according to the different areas and the flexibility degree is high.
Description
Technical field
The present invention relates to a kind of UVLED curing light source, the spray drawing apparatus applying this light source and drived control method thereof.
Background technology
UV (ultraviolet) curing process is the application of photochemical reaction forefront, by the UV-irradiation of some strength, and the related chemicals such as instantaneous solidification ink, coating, glue.Along with the development of science and technology, the involved field of UV solidification is also more extensive.
Due to the pattern of shower nozzle ink-jet in practical application area and velocity variations a lot, the ink of shower nozzle ejection is also be sprayed onto on medium with adding up formula according to specific order multilayer, in order to optimize solidification process, make the solidification effect that particular job can reach best, need the optimal parameter of the UV light energy of the different local being applied to solidification object also different, or need the ink of the ejection of the different phase to air brushing process to apply different UV irradiation energies, simultaneously also in order to reduce the energy dissipation of UV light source.
In the application of the large format air brushing and industrial printer that adopt UV curing technology, need to use UV light source to carry out irradiating timely rapidly to the UV solidified ink that shower nozzle sprays, ink is solidified rapidly, in time.No matter be adopt mercury lamp or the light source technology of LED (light emitting diode) at present, all take the light source of specific luminescence window to follow the ink of shower nozzle to ejection to irradiate, this existing technical scheme has the following disadvantages: the optical energy density of each regional area of the luminescence window due to light source is non-adjustable, in addition adopt the optical energy density of each regional area of its luminescence window of light source of mercury lamp technology also inconsistent, general the gross energy to light source and mean energy density propose certain requirement, to meet normal solidification effect.
Summary of the invention
Technical problem to be solved by this invention is: providing a kind of can carry out independent UVLED (UV LED) curing light source, the spray drawing apparatus applying this light source and the drived control method thereof that regulate to optical energy density in light-emitting zone.
Solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of UVLED curing light source, comprise rectangle luminescence window, UVLED lamp array and Drive and Control Circuit module, described UVLED lamp array is covered with rectangle luminescence window, the UVLED lamp of composition UVLED lamp array sends ultraviolet through described rectangle luminescence window, described Drive and Control Circuit module is provided with the control signal input for receiving external setting-up instruction, described rectangle luminescence window divides the two or more light-emitting zone along the arrangement of rectangle luminescence window long side direction, the corresponding light-emitting zone described in each of described Drive and Control Circuit module is provided with a power output end, and each power output end is electrically connected with the feeder ear of the UVLED lamp being positioned at corresponding light-emitting zone respectively, described Drive and Control Circuit module can regulate each light-emitting zone power output end to export power according to the external control signal received, realize carrying out independent adjustment to optical energy density in each light-emitting zone.
In order to improve the accommodative facility of UVLED curing light source luminous energy density further, as a modification of the present invention, each light-emitting zone described is the identical rectangular emitting area of shape size.
As a kind of preferred embodiment of the present invention, described rectangle luminescence window is provided with A to H totally eight rectangular emitting area successively by long side direction, described in be positioned at this A to H eight rectangular emitting area the power that obtained by described Drive and Control Circuit module of UVLED lamp meet: W
a=W
b< W
c< W
d< W
e< W
f=W
g=W
h.
As a kind of preferred embodiment of the present invention, described Drive and Control Circuit module is also provided with digital-to-analog signal converter, and corresponding power output end described in each is provided with one group of adjustable resistor and voltage controlled current source, described control signal input connects the input of digital-to-analog signal converter, for any one group of adjustable resistor and voltage controlled current source, adjustable resistor one end in this group is electrically connected with the voltage output end of described digital-to-analog signal converter, other end ground connection, centre tap is electrically connected by the power output end that the voltage controlled current source in this group is corresponding with this group.
As a kind of preferred embodiment of the present invention, described Drive and Control Circuit module is also provided with SCM system that output signal controls by described external control instruction and correspondence power output end described in each and is provided with set of number analog signal converter and voltage controlled current source, described SCM system each group digital-to-analog signal converter corresponding and voltage controlled current source are provided with a signal output part, for any set of number analog signal converter and voltage controlled current source, the signal output part that the input of the digital-to-analog signal converter of this group is corresponding with SCM system is electrically connected, the power output end that the voltage controlled current source of output in this group is corresponding with this group is electrically connected.
A kind of spray drawing apparatus applying above-mentioned UVLED curing light source, described spray drawing apparatus comprises travel mechanism, shower nozzle and two above-mentioned UVLED curing light sources, single-way moving direction and the y direction of move around direction and x direction and the target painting medium of described travel mechanism are perpendicular, described shower nozzle and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this three arranges in the x-direction, wherein, shower nozzle is between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, shower nozzle is close to the position that described UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction.
A kind of spray drawing apparatus applying above-mentioned UVLED curing light source, described spray drawing apparatus comprises travel mechanism, chalk shower nozzle, color ink shower nozzle and two above-mentioned UVLED curing light sources, the moving direction of described travel mechanism and the moving direction of x direction and target painting medium and y direction perpendicular, described chalk shower nozzle, color ink shower nozzle and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this arranges in the x-direction, wherein, chalk shower nozzle and color ink shower nozzle are between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, chalk shower nozzle is close to the position that described UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction, the position that the y direction fore-end that color ink shower nozzle is in its rear end, y direction and chalk shower nozzle in y-direction interlocks.
Compared with prior art, the present invention has following beneficial effect:
First, Drive and Control Circuit module of the present invention drives UVLED lamp array each light-emitting zone by rectangle luminescence window, the UVLED lamp being positioned at each light-emitting zone is made to obtain the power meeting external control instruction respectively, thus each light-emitting zone of rectangle luminescence window can send the ultraviolet of different-energy density, therefore, UVLED curing light source of the present invention there is luminous energy density can subregion independently regulates, flexibility ratio is high advantage;
Second, adopt the spray drawing apparatus of UVLED curing light source of the present invention, the order that can be applied by control solidification optical energy density and different-energy density, the degree that ink is solidified in different phase is different, regulate solidification object bottom and the different solidification effects on top layer, reach optimization solidification effect, reduce the object that light source life was lost, extended in the energy dissipation of curing light source.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the schematic block circuit diagram of the UVLED curing light source of the embodiment of the present invention one;
Fig. 2 is the schematic block circuit diagram of the UVLED curing light source of the embodiment of the present invention two;
Fig. 3 is the schematic diagram of rectangle luminescence window in the UVLED curing light source of the embodiment of the present invention three;
Fig. 4 is the schematic diagram of shower nozzle and two UVLED curing light sources in the spray drawing apparatus of the embodiment of the present invention four;
Fig. 5 is the schematic diagram of chalk shower nozzle in the spray drawing apparatus of the embodiment of the present invention five, color ink shower nozzle and two UVLED curing light sources;
Fig. 6 is the schematic diagram of chalk shower nozzle in the spray drawing apparatus of the embodiment of the present invention six, color ink shower nozzle and two UVLED curing light sources.
Detailed description of the invention
Embodiment one
As shown in Figure 1, the UVLED curing light source of the embodiment of the present invention one, comprises rectangle luminescence window 1, UVLED lamp array and Drive and Control Circuit module 2.
Above-mentioned UVLED lamp array is covered with rectangle luminescence window 1, and the UVLED lamp of composition UVLED lamp battle array sends ultraviolet through rectangle luminescence window 1; Further, rectangle luminescence window 1 divide two or more along rectangle luminescence window 1 long side direction arrangement light-emitting zone, comprise 1 to n light-emitting zone, wherein n be greater than or equal to 2 positive integer.
Above-mentioned Drive and Control Circuit module 2 is provided with the control signal input for receiving external setting-up instruction, each light-emitting zone of corresponding rectangle luminescence window 1 is provided with a power output end, one group of adjustable resistor of digital-to-analog signal converter and each power output end corresponding and voltage controlled current source.The input of control signal input access digital-to-analog signal converter, for any one group of adjustable resistor and voltage controlled current source, the adjustable resistor one end in this group is electrically connected with digital-to-analog signal converter output, other end ground connection, centre tap are electrically connected by the power output end that the voltage controlled current source in this group is corresponding with this group; Each power output end is electrically connected with the feeder ear of the UVLED lamp being positioned at corresponding light-emitting zone respectively.Above-mentioned digital analog converter (DAC) can select device type number to be DAC0832; Voltage controlled current source can select the conventional constant-current source circuit be formed by connecting primarily of operational amplifier TL072 and N channel field-effect pipe IRF3415PBF.Above-mentioned Drive and Control Circuit module 2 can regulate each power output end to export power according to the external control instruction received, thus, by connecting the control signal input of this UVLED curing light source with host computer and sending control instruction to this UVLED curing light source, the Drive and Control Circuit module 2 of this UVLED curing light source can drive according to this control instruction the UVLED lamp being positioned at each light-emitting zone respectively, makes each light-emitting zone of rectangle luminescence window 1 send the ultraviolet of corresponding light energy density by control instruction.
Set light source integral energy intensity level especially by host computer instruction input or by man-machine interface input, if setting number range is 0-100, this numerical value is larger, then the magnitude of voltage of DAC output is larger.Host computer is converted into 8 bit binary value of 255 grades the numerical value of 0-100 and writes the data register of DAC chip, realizes the control to DAC output voltage.The voltage range that the corresponding DAC-circuit of setting numerical value 0-255 exports is 0-10V.DAC output voltage is larger, then the drive current of each voltage controlled current source also larger (power namely exported is higher), the energy density also corresponding increase of light source regional.Before starting print job, according to the needs of curing process, regulate different potentiometers respectively, the magnitude of voltage that the input of different voltage controlled current sources is obtained is different, and the energy density that can realize regional has difference.Before print job or in print job process, the output voltage of DAC can be regulated at any time by man-machine interface, make the synchronous pro rata enhancing of the energy density of light source regional or weaken.
Embodiment two
As shown in Figure 2, the UVLED curing light source of the embodiment of the present invention two is substantially identical with embodiment one, their difference is that the implementation of Drive and Control Circuit module 2 is different, concrete: the SCM system that the Drive and Control Circuit module 2 of the present embodiment two is provided with the control signal input for receiving external control instruction, each light-emitting zone of corresponding rectangle luminescence window 1 is provided with a power output end, output signal controls by external control instruction and each power output end of correspondence are provided with set of number analog signal converter and voltage controlled current source.SCM system each group digital-to-analog signal converter corresponding and voltage controlled current source are provided with a signal output part, for any set of number analog signal converter and voltage controlled current source, the signal output part that the input of the digital-to-analog signal converter of this group is corresponding with SCM system is electrically connected, digital-to-analog signal converter output is electrically connected by the power output end that the voltage controlled current source in this group is corresponding with this group; Each power output end is electrically connected with the feeder ear of the UVLED lamp being positioned at corresponding light-emitting zone respectively.Above-mentioned single-chip microcomputer can select STC15F2K60S2 chip, and DAC chip can select AD7228 (a kind of 88 passage DAC chip of parallel 8 bit data bus).Single-chip microcomputer according to man-machine interface input or host computer communication instruction, can operate the 8 road DAC of AD7228 respectively, and the magnitude of voltage that 8 road DAC are exported is different respectively.Single-chip microcomputer is by the larger numerical value of the data register write to a wherein road DAC, corresponding DAC output is made to export larger magnitude of voltage, corresponding voltage controlled current source then can provide larger drive current to connected LED, makes the region of corresponding LED light source send larger energy.
Embodiment three
As shown in Figure 3 and Figure 4, the embodiment of the present invention three is a kind of preferred embodiment of UVLED curing light source, it can adopt the structure of embodiment one or embodiment two, difference is: in the present embodiment three, the width of rectangle luminescence window 1 is 2cm, length is 8cm, this rectangle luminescence window 1 is provided with A to the H rectangular emitting area that totally eight shape sizes are identical successively by long side direction, the width of each rectangular emitting area is 2cm, length is 1cm, the power that the UVLED lamp being positioned at this A to H eight rectangular emitting area is obtained by Drive and Control Circuit module meets: W
a=W
b< W
c< W
d< W
e< W
f=W
g=W
h, thus the optical energy density of corresponding adjustment eight light-emitting zones.In figure, y direction represents the single-way moving direction of target painting medium, and x direction represents the direction that moves around of UVLED curing light source.
Due to spray drawing apparatus print on target painting medium time, target painting medium goes up often mobile 1 inch in the y-direction, and shower nozzle often needs to carry out repeatedly ink-jet, and this repeatedly ink-jet superposition and successively cover, such as, when being operated in 3Pass printing model, need point 3 ink-jets superposition, successively cover; When being operated in 6Pass printing model, picture needs point 6 ink-jets superposition, successively covers.Wherein, for unidirectional printing pattern, during shower nozzle in the x direction one moves around, carry out 1 ink-jet, for bidirectional print mode, during shower nozzle in the x direction one moves around, carry out 2 ink-jets.Therefore, the UVLED curing light source of the present embodiment three is adopted to carry out air brushing, A, B two light-emitting zones of the ink sprayed at first carry out the Ultraviolet radiation of less energy density, C, D, E tri-light-emitting zones successively apply the Ultraviolet radiation of energization density gradually to the ink of follow-up ejection, the irradiation compared with macro-energy density is carried out on the top layer of F, G, H tri-regions to solidification object, thus optimizes the solidification effect of ink.
Below by the spray drawing apparatus of two methods UVLED curing light source of the present invention and the application example of drived control method thereof, function achieved by UVLED curing light source of the present invention is described:
Embodiment four
As shown in Figure 5, the spray drawing apparatus of the embodiment of the present invention four, comprises travel mechanism, shower nozzle 3 and the UVLED curing light source described in two above-described embodiments three (hereafter by the position relationship of Fig. 5 also referred to as left and right light source).Single-way moving direction and the y direction of move around direction and x direction and the target painting medium of travel mechanism are perpendicular, shower nozzle 3 and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this three arranges in the x-direction, wherein, shower nozzle 3 is between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, and shower nozzle 3 is close to the position that UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction.
Use in the air brushing process of 3Pass pattern at this spray drawing apparatus, when shower nozzle and light source move in the process of air brushing from left to right, the A of right light source, B region can not be irradiated to the ink on target painting medium, and be only be radiated on blank target painting medium, and the A of left light source, B region then can be irradiated to 1pass and be sprayed on ink on paper, conversely, when shower nozzle and light source move in the process of air brushing from right to left, the A of left light source, B region can not be irradiated to the ink on target painting medium, also be only be radiated on blank target painting medium, and the A of right light source, B region then can be irradiated to 1pass and be sprayed on ink on target painting medium.
Therefore, the spray drawing apparatus of the present embodiment four can preferably adopt following drived control method to solve the problems referred to above, comprise: in the air brushing process of spray drawing apparatus, luminous energy density domination is carried out to the light source being positioned at front that x direction advances in two UVLED curing light sources, that is: closes or reduce the UVLED lamp that this advance front light source is positioned at of y direction rearmost or more light-emitting zone and can obtain power.
The drived control method of the present embodiment four is specifically also namely:
First, when using 3pass pattern to print, when shower nozzle and light source move air brushing from left to right, reduce or close the Energy transmission in A, B region of right light source, when shower nozzle and light source move air brushing from right to left, reduce or close the Energy transmission in A, B region of left light source, by such control, decrease the irradiation that print media is cured light source.Which reduces print media and be subject to the energy that UV light irradiates, decrease material warms distortion, also reduce and occur the problems such as material aging causes product to shorten service life.With this simultaneously, energy loss and the loss in service life of curing light source is decreased.
Second, for the region such as C-H of left and right light source, due at print procedure no matter left or ink regions can be irradiated in moving right all the time, and can not be only be irradiated to blank print media, in print procedure, then maintain certain high-energy export, ink regions is irradiated.
Embodiment five
As shown in Figure 6, the spray drawing apparatus of the embodiment of the present invention five, comprises travel mechanism, chalk shower nozzle 4, color ink shower nozzle 5 and the UVLED curing light source described in two above-described embodiments three.The moving direction of travel mechanism and the moving direction of x direction and target painting medium and y direction perpendicular, chalk shower nozzle 4, color ink shower nozzle 5 and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this arranges in the x-direction, wherein, chalk shower nozzle 4 and color ink shower nozzle 5 are between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, chalk shower nozzle 4 is close to the position that UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction, the position that the y direction fore-end that color ink shower nozzle 5 is in its rear end, y direction and chalk shower nozzle 4 in y-direction interlocks.
Use in the air brushing process of 6pass bidirectional print mode at this spray drawing apparatus, when shower nozzle and light source move in the process of air brushing from left to right, the a-quadrant of right light source can not be irradiated to the ink on print media, and be only be radiated on blank print media, the a-quadrant of left light source then can be irradiated to 1pass and be sprayed on ink on paper, conversely, when shower nozzle and light source move in the process of air brushing from right to left, the a-quadrant of left light source can not be irradiated to the ink on print media, also be only be radiated on blank print media, the a-quadrant of right light source then can be irradiated to 1pass spray ink on the print medium.
Therefore, the spray drawing apparatus of the present embodiment five can preferably adopt following drived control method to solve the problems referred to above, comprise: in the air brushing process of spray drawing apparatus, carry out luminous energy density domination to the light source being positioned at rear that x direction advances in two UVLED curing light sources, that is: improving the UVLED lamp that this advance rear light source is positioned at of y direction rearmost or more light-emitting zone can obtain power; Luminous energy density domination is carried out to the light source being positioned at front that x direction advances in two UVLED curing light sources simultaneously, that is: close the UVLED lamp that this advance front light source is positioned at of y direction rearmost or more light-emitting zone and can obtain power.
The drived control method of the present embodiment five is specifically also namely:
First, black leathers based article is larger to high intensity UV energy absorption rate, and the uv irradiation of high strength can cause leather elevated temperature deformation, because local heating can cause local deformation to arch upward, printing precision can be affected, serious meeting, because arch upward in leather local, rubs with the structure of the travelling car of stationary nozzle on printer, even causes printer servo-drive system to report an error and causes printing to interrupt.So need control uv curing light source as far as possible to shine directly on the surface of the leather not having ink to cover;
Second, according to general printing and air brushing principle, black leathers prints color graphics, need first to cover one deck white ink as shop fixtures, could realize the wider color print image of colour gamut like this, otherwise general CMYK tetra-chromatic ink air brushing can not go out bright image in black leathers.And according to concrete practice, compared with the CMYK ink used with us of white ink, need the UV light source irradiation ability rapid solidification of more high-energy-density, so before the white ink of shop fixtures is covered in the air brushing of CMYK color inks, the light source irradiation of higher energy density can be carried out separately to white shop fixtures ink, make it timely solidification, and to the region that each pass that back has covered CMYK color inks prints, and the energy density of corresponding reduction light source.
3rd, because a-quadrant is irradiated to the chalk of shop fixtures, we to larger level, it also avoid the energy of light source Auto-regulating System of Density of Heavy Medium of a-quadrant energy of light source simultaneously and irradiate the leather being not yet sprayed with chalk.In the B-H district of left and right light source, we are adjusted to the level relatively less than A district energy density, can meet the abundant solidification of print procedure equally.
The present invention does not limit to and above-mentioned detailed description of the invention; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the present invention's above-mentioned basic fundamental thought prerequisite; the present invention can also make the equivalent modifications of other various ways, replacement or change, all drops among protection scope of the present invention.Such as, the size of each light-emitting zone is not identical.
Claims (9)
1. a UVLED curing light source, comprise rectangle luminescence window (1), UVLED lamp array and Drive and Control Circuit module (2), described UVLED lamp array is covered with rectangle luminescence window (1), the UVLED lamp of composition UVLED lamp array sends ultraviolet through described rectangle luminescence window (1), described Drive and Control Circuit module (2) is provided with the control signal input for receiving external setting-up instruction, it is characterized in that: described rectangle luminescence window (1) divides the two or more light-emitting zone along the arrangement of rectangle luminescence window (1) long side direction, the corresponding light-emitting zone described in each of described Drive and Control Circuit module (2) is provided with a power output end, and each power output end is electrically connected with the feeder ear of the UVLED lamp being positioned at corresponding light-emitting zone respectively, described Drive and Control Circuit module can regulate each light-emitting zone power output end to export power according to the external control signal received, realize carrying out independent adjustment to optical energy density in each light-emitting zone.
2. UVLED curing light source according to claim 1, is characterized in that: each light-emitting zone described is the identical rectangular emitting area of shape size.
3. UVLED curing light source according to claim 2, it is characterized in that: described rectangle luminescence window (1) is provided with A to H totally eight rectangular emitting area successively by long side direction, described in be positioned at this A to H eight rectangular emitting area the power that obtained by described Drive and Control Circuit module of UVLED lamp meet: W
a=W
b< W
c< W
d< W
e< W
f=W
g=W
h.
4. UVLED curing light source according to claim 1 and 2, it is characterized in that: described Drive and Control Circuit module (2) is also provided with digital-to-analog signal converter, and corresponding power output end described in each is provided with one group of adjustable resistor and voltage controlled current source, described control signal input connects the input of digital-to-analog signal converter, for any one group of adjustable resistor and voltage controlled current source, adjustable resistor one end in this group is electrically connected with the output of described digital-to-analog signal converter, other end ground connection, centre tap is electrically connected by the power output end that the voltage controlled current source in this group is corresponding with this group.
5. UVLED curing light source according to claim 1 and 2, it is characterized in that: described Drive and Control Circuit module (2) is also provided with SCM system that output signal controls by described external control instruction and correspondence power output end described in each and is provided with set of number analog signal converter and voltage controlled current source, described SCM system each group digital-to-analog signal converter corresponding and voltage controlled current source are provided with a signal output part, for any set of number analog signal converter and voltage controlled current source, the signal output part that the input of the digital-to-analog signal converter of this group is corresponding with SCM system is electrically connected, output is electrically connected through the power output end that voltage controlled current source is corresponding with this group.
6. the spray drawing apparatus of UVLED curing light source described in application rights requirement 1 to 5 any one, it is characterized in that: described spray drawing apparatus comprises travel mechanism, UVLED curing light source described in shower nozzle (3) and two Claims 1-4 any one, single-way moving direction and the y direction of move around direction and x direction and the target painting medium of described travel mechanism are perpendicular, described shower nozzle (3) and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this three arranges in the x-direction, wherein, shower nozzle (3) is between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, shower nozzle (3) is close to the position that described UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction.
7. the drived control method of spray drawing apparatus described in a claim 6, comprise: described in claim 6 spray drawing apparatus air brushing process in, luminous energy density domination is carried out to the light source being positioned at front that x direction advances in described two UVLED curing light sources, that is: closes or reduce the UVLED lamp that this advance front light source is positioned at of y direction rearmost or more light-emitting zone and can obtain power.
8. the spray drawing apparatus of UVLED curing light source described in application rights requirement 1 to 5 any one, it is characterized in that: described spray drawing apparatus comprises travel mechanism, chalk shower nozzle (4), UVLED curing light source described in color ink shower nozzle (5) and two Claims 1-4 any one, the moving direction of described travel mechanism and the moving direction of x direction and target painting medium and y direction perpendicular, described chalk shower nozzle (4), color ink shower nozzle (5) and two UVLED curing light sources are fixed in travel mechanism towards what parallel, and this arranges in the x-direction, wherein, chalk shower nozzle (4) and color ink shower nozzle (5) are between two UVLED curing light sources, two UVLED curing light sources are mutually concordant in y-direction, chalk shower nozzle (4) is close to the position that described UVLED curing light source is positioned at rearmost light-emitting zone place, y direction in y-direction, the position that the y direction fore-end that color ink shower nozzle (5) is in its rear end, y direction and chalk shower nozzle (4) in y-direction interlocks.
9. the drived control method of spray drawing apparatus described in a claim 8, comprise: described in claim 8 spray drawing apparatus air brushing process in, carry out luminous energy density domination to the light source being positioned at rear that x direction advances in described two UVLED curing light sources, that is: improving the UVLED lamp that this advance rear light source is positioned at of y direction rearmost or more light-emitting zone can obtain power.
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Effective date of registration: 20171018 Address after: 518000 building 3, building B1, Hang Kong Industrial District, Pinghu street, Longgang District, Shenzhen, Guangdong Patentee after: Shenzhen post Technology Co., Ltd. Address before: Zengcha Road, Baiyun District of Guangzhou City, Guangdong province 510165 No. 18 Xihua garden building 826 room Patentee before: Wang Guangcai |