CN210098143U - UV curing equipment - Google Patents
UV curing equipment Download PDFInfo
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- CN210098143U CN210098143U CN201920623477.3U CN201920623477U CN210098143U CN 210098143 U CN210098143 U CN 210098143U CN 201920623477 U CN201920623477 U CN 201920623477U CN 210098143 U CN210098143 U CN 210098143U
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Abstract
The utility model relates to a UV curing device, which comprises a mounting rack, a conveyor belt arranged on the mounting rack, and a plurality of groups of UVLED light sources arranged on the upper side of the conveyor belt; the upper side of the conveyor belt is also provided with a plurality of groups of UVC light sources; the UVC light source is positioned at the rear side of the UVLED light source in the moving direction of the conveyor belt; the UVLED light source is arranged at the feeding end of the conveying belt, and the UVC light source is arranged at the discharging end of the conveying belt. The utility model discloses work efficiency is high, and is with low costs, and the illuminance that obtains at unit area is big, and the solidification is effectual.
Description
Technical Field
The utility model relates to a LED equipment for packing, more specifically say and indicate a UV curing equipment.
Background
Currently, in the UVLED curing application, the wavelength selection range of the UVLED is between 365 and 405nm based on the use cost and the self-demand of a pre-cured object. In the UVLED curing application process of some products, especially in the glue curing application, when the products are irradiated by a UVLED light source, the cured surface has the phenomenon of poor surface dryness and hand sticking. This phenomenon is due to the lack of short-wave ultraviolet radiation, especially radiation of UVC (wavelength range 180nm-280nm), during the crosslinking reaction of the monomers in the glue, which leads to incomplete chemical reactions. It is known that in the ultraviolet curing process, a substance to be cured (pre-cured product) generates radicals upon irradiation with UV, and the radicals undergo polymerization and crosslinking reactions of monomers under the irradiation with UV, and finally change into a desired form. However, in this process, the radicals also react with oxygen atoms in the air to generate peroxy radicals, which consume radicals, and cause insufficient radicals to participate in the polymerization and crosslinking reaction of monomers, and further cause poor surface curing and sticking of hands to the cured product. This process of oxygen atom consumption of free radicals to hinder the polymerization crosslinking reaction of the monomers is referred to as oxygen inhibition. The oxygen inhibition process is carried out on the surface of the cured product, and the oxygen atoms do not exist in the deep layer, so that the oxygen inhibition process does not occur. This phenomenon therefore results in poor surface drying of the product, while deep-level curing is not affected. A large amount of oxidation structures such as hydroxyl, carbonyl and peroxy exist on the surface of the UVLED curing product participating in oxygen inhibition.
In the existing UVLED curing equipment, the luminous efficiency of UVC lamp beads is very limited, and taking 278nm UVLEDs of LEUVA66H70HF00, which is the model of LG company as an example, the nominal illumination is 70mw/cm2, 40 LEDs can be arranged in an area of 50mm x 30mm, the illumination is not enough to reach 170mw/cm2, the manufacturing cost is extremely high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a UV curing equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the UV curing equipment comprises a mounting rack, a conveyor belt arranged on the mounting rack, and a plurality of groups of UVLED light sources arranged on the upper side of the conveyor belt; the upper side of the conveyor belt is also provided with a plurality of groups of UVC light sources; the UVC light source is positioned at the rear side of the UVLED light source in the moving direction of the conveyor belt; the UVLED light source is arranged at the feeding end of the conveying belt, and the UVC light source is arranged at the discharging end of the conveying belt.
The further technical scheme is as follows: the UVLED light source is communicated with the cooling water device, so that the UVLED light source is cooled through the cooling water.
The further technical scheme is as follows: the UVC light source is communicated with a first cooling fan arranged on the device to cool the UVC light source.
The further technical scheme is as follows: the UVC light source comprises a mounting seat, a lamp holder arranged on the mounting seat and a gas discharge lamp connected to the lamp holder; the lamp holder is provided with a cooling plate and is positioned in the inner cavity of the mounting seat; and the inner cavity of the mounting seat is communicated with the first cooling fan.
The further technical scheme is as follows: the device also comprises a protective cover; the conveyer belt top is located to the safety cover, and UVC light source, UVLED light source are located the safety cover.
The further technical scheme is as follows: and a second cooling fan for cooling the protective cover is arranged outside the protective cover.
The further technical scheme is as follows: the UVC light source is a mercury lamp, a gas discharge lamp or an ion lamp.
The further technical scheme is as follows: the mounting frame is provided with an adjusting frame for mounting a UVC light source and a UVLED light source; and the mutual distance between the UVC light source and the UVLED light source is adjusted on the adjusting frame.
The further technical scheme is as follows: .
The UV curing process is characterized in that the mutual distance and the self distance of a UVC light source and a UVLED light source are adjusted to adapt to the requirements of working conditions; adjusting the speed of the conveyor belt to adapt to the corresponding workpiece; turning on a power supply, enabling the UVC light source and the UVLED light source to emit light rays with different wavelengths, and placing a workpiece on the conveyor belt after the UVC light source and the UVLED light source are stabilized; the conveyor belt moves at a constant speed, and the workpiece passes through the UVLED light source firstly, so that the UVLED light source can fully irradiate, and the workpiece is cured; the work is conveyed to the UVC light source under the action of the conveyor belt, and the UVC light source fully irradiates the workpiece, so that the surface of the workpiece is well cured.
Compared with the prior art, the utility model beneficial effect be: the utility model discloses work efficiency is high, and is with low costs, and the illuminance that obtains at unit area is big, and the solidification is effectual.
Drawings
FIG. 1 is a three-dimensional structure diagram of a UV curing apparatus of the present invention;
FIG. 2 is a view showing the internal structure of a UV curing apparatus according to the present invention;
fig. 3 is a three-dimensional structure diagram of a UVC light source of the UV curing apparatus of the present invention;
fig. 4 is a perspective view of another view angle of the UVC light source of the UV curing apparatus according to the present invention.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
Fig. 1 to 4 show drawings according to embodiments of the present invention.
A UV curing device, as shown in FIGS. 1 and 2, comprises a mounting frame 10, a conveyor belt 11 disposed on the mounting frame 10, and a plurality of sets of UVLED light sources 12 disposed on the upper side of the conveyor belt 11. The upper side of the conveyor belt 11 is also provided with a plurality of groups of UVC light sources 13. The UVC light source 13 is located on the rear side of the UVLED light source 12 in the moving direction of the conveyor belt 11. UVLED light source 12 locates the feed end of conveyer belt 11, UVC light source 13 locates the discharge end of conveyer belt 11. The workpiece moves on the conveyor belt 11, and after being irradiated and cured by the UVLED light source 12, the workpiece is irradiated and cured by the UVC light source 13, so that the surface and the deep layer of the workpiece can be well cured.
The power of the power UVLED light source 12 is larger, the heating value is also larger, and in order to better cool the UVLED light source 12, the UVLED light source 12 is communicated with a cooling water device arranged so as to cool the UVLED light source 12 through cooling water. A cooling water cavity is arranged inside a lamp holder of the UVLED light source 12 and used for introducing flowing cooling water.
Since the UVC light source 13 also generates heat, the UVC light source 13 is communicated through a first cooling fan 14, so as to cool the UVC light source 13. An air outlet of the first cooling fan 14 is directly communicated with the UVC light source 13, so that the UVC light source 13 can be fully cooled.
Specifically, as shown in fig. 3 and 4, the UVC light source 13 includes a mounting base 131, a lamp holder 132 disposed on the mounting base 131, and a gas discharge lamp 133 coupled to the lamp holder 132. The lamp holder 132 is provided with a cooling plate 134 and is located in the inner cavity of the mounting base 131. The inner cavity of the mounting seat 131 is communicated with the first cooling fan 14. The air inlet on the air outlet end mounting seat 131 of the first cooling fan 14 is connected, and the air flow of the first cooling fan 14 is directly guided to the inner cavity of the mounting seat 131, so as to cool the gas discharge lamp 133 and the cooling plate 134.
Wherein a protective cover 15 is also included. The protective cover 15 is arranged above the conveyor belt 11, and the UVC light source 13 and the UVLED light source 12 are positioned in the protective cover 15.
Preferably, a second cooling fan 16 for cooling the inside of the protective cover 15 is provided outside the protective cover 15. The second cooling fan 16 performs blast cooling of the space inside the protection cover 15 so that the environment of the protection cover 16 is in a constant state.
Preferably, the UVC light source 13 is a mercury lamp, a gas discharge lamp 133, an ion lamp, or the like.
The mounting frame 10 is provided with an adjusting frame 17 for mounting the UVC light source 13 and the UVLED light source 12. The UVC light source 13 and the UVLED light source 12 are adjusted in mutual distance on an adjusting bracket 17. The adjusting bracket 17 is used for adjusting the UVC light source 13 and the UVLED light source 12 in the horizontal direction and the vertical direction. The distance between the UVC light sources 13 and the UVLED light sources 12, or the distance between the UVC light sources 13 and each other, or the distance between the UVLED light sources 12 and each other is adjusted in the horizontal direction. The distance between the UVC light source 13 and the UVLED light source 12 and the workpiece is adjusted in the vertical direction. The UVC light source 13 and the UVLED light source 12 are adjusted according to actual conditions.
The system also comprises a control center used for controlling the whole equipment. Control keys and a display screen are arranged on the protective cover 15.
In this embodiment, the width of the conveyor belt 11 is 300mm, the number of the UVLED light sources 12 is three, the cooling method is water cooling, the main effective wavelength of the light source is 350-410 nm, the light emitting area of each UVLED light source 12 is 300mm x 30mm, the power of the light source in each UVLED light source is 1800W, and the illuminance is greater than 6000mw/cm2。
The UVC light sources 13 are two groups, the main effective wavelength distribution range of light source light is 180nm-280nm, and the light emitting area of each UVC light source 13 group is 300 mm-150 mm; the total length of the UVC light source 13 is 460mm, the arc length is 300mm, the power is 2000W, the working voltage is 200V, and the UVC light source is cooledBy air cooling, illuminance>350mw/cm2。
The speed of movement of the conveyor belt 11 is 10m/min, so that the work pieces placed on the conveyor belt 11 attain a speed greater than 3500mj/cm2The surface layer and deep layer curing effect is good.
The UV curing process is characterized in that the distance between a UVC light source 13 and a UVLED light source 12 and the distance between the UVC light source and the UVLED light source are adjusted to meet the requirements of working conditions; adjusting the speed of the conveyor belt 11 to suit the respective workpiece; turning on a power supply, enabling the UVC light source 13 and the UVLED light source 12 to emit light rays with different wavelengths, and placing a workpiece on the conveyor belt 11 after the UVC light source 13 and the UVLED light source 12 are stable; the conveyor belt 11 moves at a constant speed, the workpiece passes through the UVLED light source 12, and the UVLED light source 12 fully irradiates to cure the workpiece; the work is conveyed to the UVC light source 13 under the action of the conveyor belt 11, and the UVC light source 13 fully irradiates the workpiece, so that the surface of the workpiece is well cured.
To address this phenomenon, one or more sets of UV gas discharge lamps (including ion discharge lamps and other lamps including UVC bands) are added behind the UVLED light source in the product line. When the product is irradiated by the UVLED, the deep layer of the product is well cured, and the surface of the product is well cured by the irradiation of the UV gas discharge lamp, so that the phenomenon of poor surface dryness of the product after the single UVLED is irradiated is thoroughly solved.
The reason why the product with poor surface dryness is well cured after being irradiated by a gas discharge lamp is that: UVC short-wave ultraviolet rays in the selected gas discharge lamp are irradiated on the surface of a product, so that peroxy radical molecular chains on the surface of the product are broken, the activity of free radicals is recovered, and monomer polymerization crosslinking reaction is generated under the irradiation of the UVC ultraviolet rays so as to be cured.
To sum up, the utility model discloses work efficiency is high, and is with low costs, and the illuminance that obtains at unit area is big, and the solidification is effectual.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (9)
1. The UV curing equipment comprises a mounting rack, a conveyor belt arranged on the mounting rack, and a plurality of groups of UVLED light sources arranged on the upper side of the conveyor belt; the device is characterized in that a plurality of groups of UVC light sources are further arranged on the upper side of the conveyor belt; the UVC light source is positioned at the rear side of the UVLED light source in the moving direction of the conveyor belt; the UVLED light source is arranged at the feeding end of the conveying belt, and the UVC light source is arranged at the discharging end of the conveying belt.
2. The UV curing apparatus of claim 1, wherein the UVLED light source is in communication with cooling water means provided to cool the UVLED light source with cooling water.
3. The UV curing apparatus of claim 1, wherein the UVC light source is in communication with a first cooling fan disposed to cool the UVC light source.
4. The UV curing apparatus of claim 3, wherein the UVC light source includes a mount, a lamp holder mounted to the mount, and a gas discharge lamp coupled to the lamp holder; the lamp holder is provided with a cooling plate and is positioned in the inner cavity of the mounting seat; and the inner cavity of the mounting seat is communicated with the first cooling fan.
5. The UV curing apparatus of claim 1, further comprising a protective cover; the conveyer belt top is located to the safety cover, and UVC light source, UVLED light source are located the safety cover.
6. The UV curing apparatus of claim 5, wherein a second cooling fan is provided outside the protective cover for cooling inside the protective cover.
7. The UV curing apparatus according to claim 1, wherein the UVC light source is a mercury lamp, a gas discharge lamp or an ion lamp.
8. The UV curing apparatus according to claim 1, wherein the mounting frame is provided with an adjusting frame for mounting the UVC light source and the UVLED light source; and the mutual distance between the UVC light source and the UVLED light source is adjusted on the adjusting frame.
9. The UV curing apparatus of claim 1, wherein the UVLED light source has a primary effective wavelength of 350 to 410nm and the UVC light source has a primary effective wavelength of 180 to 280 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623477.3U CN210098143U (en) | 2019-04-30 | 2019-04-30 | UV curing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623477.3U CN210098143U (en) | 2019-04-30 | 2019-04-30 | UV curing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210098143U true CN210098143U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920623477.3U Active CN210098143U (en) | 2019-04-30 | 2019-04-30 | UV curing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180756A (en) * | 2019-04-30 | 2019-08-30 | 深圳市润沃自动化工程有限公司 | A kind of UV curing apparatus and its curing process |
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2019
- 2019-04-30 CN CN201920623477.3U patent/CN210098143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180756A (en) * | 2019-04-30 | 2019-08-30 | 深圳市润沃自动化工程有限公司 | A kind of UV curing apparatus and its curing process |
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