CN112170141A - Curing method of UV (ultraviolet) skin-friendly paint on surface of plate - Google Patents
Curing method of UV (ultraviolet) skin-friendly paint on surface of plate Download PDFInfo
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- CN112170141A CN112170141A CN202011204273.XA CN202011204273A CN112170141A CN 112170141 A CN112170141 A CN 112170141A CN 202011204273 A CN202011204273 A CN 202011204273A CN 112170141 A CN112170141 A CN 112170141A
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- 238000001723 curing Methods 0.000 title claims abstract description 79
- 239000003973 paint Substances 0.000 title claims abstract description 53
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 38
- 230000000694 effects Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 13
- 241000258971 Brachiopoda Species 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 238000003848 UV Light-Curing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000110847 Kochia Species 0.000 description 2
- 206010034960 Photophobia Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 208000013469 light sensitivity Diseases 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 mould pressing Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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Abstract
The invention relates to a curing method of UV (ultraviolet) skin-friendly paint on the surface of a plate, wherein curing equipment comprises a rack, an input conveyor belt structure, an intermediate conveyor belt structure, an output conveyor belt structure and an LED curing lamp; the transfer roller is characterized by further comprising more than one upper skin sub-lamp group and more than two lower skin sub-lamp groups, wherein the power of each skin sub-lamp in the upper skin sub-lamp group and each skin sub-lamp in the lower skin sub-lamp group is less than 500W, the wavelength of each skin sub-lamp is 200nm-320nm, and the transfer roller (located between the upper skin sub-lamp group and each lower skin sub-lamp group) is located.
Description
Technical Field
The invention relates to a curing method of UV (ultraviolet) skin-friendly paint on the surface of a plate.
Background
The skin-feel board, namely the board coated with the Fuya paint, has good touch and visual effects, and becomes a hot spot applied in the furniture and decoration material industry. Currently, skin feel effects can be generally obtained by the following four processing techniques:
first, film pressing technology
After the UV finishing coat is roll-coated on the board with the primer, the skin-feel finishing coat is pressed by a skin-feel film, and after the UV finishing coat is cured by a UV light source, the film is removed, so that a skin-feel product with film pressure is obtained, as shown in figures 10 and 12.
The film pressing technology can only process plane products; due to the microstructure limitation of the skin-feel film, the aging performance of the skin feel of the product is limited under certain conditions; when in production, the skin-feel film is disposable, which causes higher production cost.
Second, coating technology
Currently, self-drying paint (PU, water-based) is produced by a paint formula, and skin feeling effect can be realized by coating the self-drying paint on a plate, as shown in figures 10 and 12, but the skin feeling effect obtained by the method has short duration and is not resistant to fingerprints.
Curing technology of three-quasi-molecule lamp
IOT corporation from Germany created a 172nm UV curing apparatus (EXCIMER) and has unique properties that can be referred to as the "black technology" of UV curing technology.
Acrylate double bonds in the UV coating formula can generate free radicals after absorbing 172-nanometer ultraviolet light, and a photoinitiator is not needed; the penetration depth of the 172nm ultraviolet is only 100 to 500 nm, so that only one extremely thin layer of the coating on the surface of the plate is cured; polymerization and crosslinking of the cured layer will shrink to form a matte surface and float to the uncured underlying paint, resulting in a matte surface. However, this process needs to be performed under nitrogen atmosphere to make the oxygen concentration in the operation environment lower than 100ppm, and then the conventional UV or electron beam is used to perform the complete curing, as shown in FIG. 11 and FIG. 13. Its advantage is: compared with skin-feel paint such as mould pressing, PU, water-based and the like, the skin-feel product obtained by physical extinction is more resistant to scratch, dirt, fingerprints, repairable and the like. It has the following disadvantages: the one-time investment cost of the equipment is high, the operation cost is high, and only plane products can be processed (if the flatness of a large plate is not enough, defective products can be generated). The standard working life of the 172nm ultraviolet lamp is normal for 3000 hours of 2000-. When the equipment is operated, a large amount of high-purity nitrogen is needed. Normally, the nitrogen gas with the purity of 99.999 percent is required for 20 cubic meters per hour.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a curing method of a UV (ultraviolet) skin matt paint on the surface of a plate, wherein the UV skin matt paint can be slightly shrunk to form a non-smooth and diffuse-reflection surface on the paint surface by irradiating the UV skin matt paint through a weak-energy ultraviolet light source of 200nm-320nm, the irradiation effect similar to that of a 172nm light source can be achieved without matching of a photoinitiator, and the principle of the method is completely different from that of the 172nm skin matt paint. The method adopts the ultraviolet light source with the wavelength of more than 200nm, so that the nitrogen protection is not needed, and the influence of oxygen in the air on the irradiation distance of the ultraviolet light is very weak, so that the method not only realizes the skin feeling effect of the super matte layer on the plane plate, but also can realize the skin feeling effect of the super matte layer on the plate with the special-shaped surface and four edges, thereby reducing the consumption, simplifying the traditional coating process, reducing the production and maintenance cost and achieving the skin feeling effect of the super matte layer generated by the excimer lamp curing technology.
In order to achieve the purpose, the invention is realized by the method, and the curing equipment comprises a rack, an input conveyor belt structure, an intermediate conveyor belt structure, an output conveyor belt structure and an LED curing lamp; the input conveyor belt structure, the middle conveyor roller structure, the output conveyor belt structure and the LED curing lamps are all arranged on the rack, the LED curing lamps are located above the input conveyor belt structure, the vertical distance between the LED curing lamps and the input conveyor belt structure is 5-50mm, and the middle conveyor roller structure comprises more than three conveyor rollers; the device is characterized by further comprising more than one upper skin sub-lamp group and more than two lower skin sub-lamp groups, wherein the power of each skin sub-lamp in the upper skin sub-lamp group and the lower skin sub-lamp group is less than 500W, the wavelength of each skin sub-lamp is 200nm-320nm, the upper skin sub-lamp group and the lower skin sub-lamp group are both arranged on the rack, the conveying rollers are located between the upper skin sub-lamp group and the lower skin sub-lamp group, the vertical distance between the upper skin sub-lamp group and the conveying rollers is 5-50mm, and each lower skin sub-lamp group is located at the position corresponding to the gap between the two adjacent conveying rollers so that light emitted by the lower skin sub-lamp group can irradiate on the side edge of the plate; the curing steps are as follows:
step one, LED curing of surface skin paint of plate
Placing a plate with UV skin sub-paint roller-coated or sprayed on the surface on an input conveyor belt structure, driving the plate to move under an LED curing lamp by the input conveyor belt structure, and when the plate is in the irradiation range of the LED curing lamp, irradiating the plate by the light of the LED curing lamp to cure the UV skin sub-paint bottom layer on the upper surface of the plate, wherein the speed of the input conveyor belt structure is 2-20 m/min;
step two, special curing of UV (ultraviolet) skin paint on surface of plate
The UV skin sub-bottom layer on the surface of the plate enters a conveying roller of a middle conveying roller structure after being cured by an LED curing lamp, the middle conveying roller structure drives the plate to move between an upper skin sub-lamp group and a lower skin sub-lamp group, when the plate is in the irradiation range of the upper skin sub-lamp group and the lower skin sub-lamp group, the light of the upper skin sub-lamp group is irradiated on the surface and the side edge of the plate, the lower skin sub-lamp group is irradiated on the side edge of the plate, the energy irradiated on the surface of the plate is equal to the energy irradiated on the side edge of the plate by adjusting the proportional relation of the distance and the quantity of the upper skin sub-lamp group, the lower skin sub-lamp group and the plate, and when the energy is appropriate, the skin sub-paint on the surface of the plate can shrink to form a non-smooth surface and float on the uncured lower layer paint to achieve the surface sub-light effect, the glossiness of the ultra-light effect can reach 0.5-5.0 degree, and, so called the skin sub effect, the conveying speed of the conveying roller is 2-20 m/min;
step three, final curing of UV (ultraviolet) skin paint on surface of plate
And the surface skin paint of the plate is irradiated by the upper skin lamp group and the lower skin lamp group and then enters a conventional UV curing machine from an output conveyor belt structure, and the skin paint on the plate is completely cured under the irradiation of a mercury lamp.
In the technical scheme, each upper Kochia lamp group comprises a lamp shell, a heat dissipation fan arranged on the lamp shell, more than two upper Kochia lamps arranged at the opening of the lamp shell and two reflecting plates; the lamp shell is arranged on the frame and positioned above the middle conveying roller structure, the two reflecting plates are respectively arranged above the upper skin sub-lamps and distributed in a splayed manner, the vertical distance between the upper skin sub-lamps and the conveying roller is 5-50mm, the power of each upper skin sub-lamp is less than 500W, and the wavelength is 200-320 nm; inferior banks of skin include the inferior lamp of skin and reflection recess down, the reflection recess is established in the frame and is located between two adjacent transfer rollers, the inferior lamp of skin is established in the reflection recess that corresponds down, and the power of the inferior lamp of skin is less than 500W down, and the wavelength is 200nm-400 nm, and the produced light of the inferior lamp of skin upwards reflects under the two walls of reflection recess lean out of being convenient for.
In the technical scheme, the input conveying belt structure comprises an input conveying belt, an input conveying motor, an input conveying belt driven roller shaft and an input conveying belt driving roller shaft, wherein the input conveying motor is arranged on a rack, the input conveying belt driven roller shaft and the input conveying belt driving roller shaft are both arranged on the rack and can rotate, an output rotating shaft of the input conveying motor is connected with the input conveying belt driving roller shaft so as to drive the input conveying belt driving roller shaft to rotate, and the input conveying belt is sleeved on the input conveying belt driven roller shaft and the input conveying belt driving roller shaft; the vertical distance between the LED curing lamp and the input conveyor belt is 5-50mm, and the transmission speed of the input conveyor belt is 2-20 m/min;
the output conveying belt structure comprises an output conveying motor, an output conveying belt driving roller shaft, an output conveying belt and an output conveying belt driven roller shaft, wherein the output conveying motor is arranged on the rack, the output conveying belt driving roller shaft and the output conveying belt driven roller shaft are both arranged on the rack and can rotate, an output rotating shaft of the output conveying motor is connected with the output conveying belt driving roller shaft so as to drive the output conveying belt driving roller shaft to rotate, the output conveying belt is sleeved on the output conveying belt driving roller shaft and the output conveying belt driven roller shaft, and the transmission speed of the output conveying belt is 2-20 m/min;
middle transfer roller structure still includes more than three rotating gear and middle drive motor, middle drive motor establishes in the frame, and rotating gear all pivoted is established in the frame, and two adjacent rotating gear intermeshing, middle drive motor's output drive a gear train and rotate, establishing in the frame that the one end of transmission roller was transported, the other end of transfer roller is established on the transfer gear that corresponds.
In the technical scheme, the reflecting plate is a reflecting plate with triangular folds.
In the technical scheme, the dust-proof device further comprises an input dust-proof cover, a middle dust-proof cover and an output dust-proof cover; the utility model discloses a LED curing lamp, including input dust cover, middle dust cover and output dust cover, input dust cover, middle dust cover and output dust cover all establish in the frame, input dust cover covers on the input conveyer belt structure and is located the right side of LED curing lamp, middle dust cover covers in the middle of structural and last sub banks of skin of conveyer belt and the sub banks of skin of lower skin of conveyer belt is located middle dust cover, is equipped with the exhaust hole on middle dust cover, output dust cover covers on the right side of output conveyer belt structure and be located the sub-lamp of skin.
In this technical scheme, but still include two height-adjusting's regulation installing support, adjust the installing support and establish both sides around the frame, thereby LED curing lamp establishes on the regulation mounting bracket that corresponds can adjust LED curing lamp's upper and lower height.
In the technical scheme, the wavelength of the LED curing lamp is 395 +/-10 nm.
Compared with the prior art, the invention has the advantages that: the skin feeling effect of the super matte layer is realized on the plane plate, the skin feeling effect of the UV skin matte paint can also be realized on the plate with the special-shaped surface, the consumption is reduced, the traditional coating process is simplified, and the skin feeling effect of the super matte layer generated by the excimer lamp curing technology can be achieved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
FIG. 5 is an enlarged view of the middle of FIG. 4;
FIG. 6 is an enlarged view of the upper skin sub-group of lamps of FIG. 4;
FIG. 7 is a cross-sectional view B-B of FIG. 3;
FIG. 8 is a cross-sectional view C-C of FIG. 3;
FIG. 9 is an enlarged view of the middle of FIG. 8;
FIG. 10 is a light reflection diagram of a super matte layer on the surface of a plate produced by the film pressing technology and the coating technology;
FIG. 11 is a light reflection diagram of a super-matte layer on the surface of a plate produced by excimer lamp curing technology;
FIG. 12 is a surface electron microscope image of a super matte layer on the surface of a plate produced by the film pressing technology and the coating technology;
FIG. 13 is a surface electron microscope image of the super-matte layer on the surface of the plate produced by the excimer lamp curing technology.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The curing method is a curing method of UV (ultraviolet) skin sub-paint on the surface of a plate, and as shown in figures 1 to 9, curing equipment comprises a rack 6, an input conveyor belt structure, a middle conveyor belt structure, an output conveyor belt structure, LED curing lamps 2, six skin sub-lamp groups and fourteen lower skin sub-lamp groups; the input conveyor belt structure, the middle conveyor belt structure, the output conveyor belt structure, the LED curing lamps 2, the six skin sub-lamp groups and the fourteen lower skin sub-lamp groups are all arranged on the rack 6, the LED curing lamps 2 are located above the input conveyor belt structure, and the middle conveyor belt structure is located between the upper skin sub-lamp group and the lower skin sub-lamp group; the vertical distance between the LED curing lamp 2 and the input conveyor belt structure is 15mm, and the vertical distance can be selected within the range of 5-50mm according to actual conditions; the middle conveying roller structure comprises seventeen rotating conveying rollers 16, each lower skin sub-lamp group is positioned in a gap between every two adjacent conveying rollers 16, so that light emitted by the lower skin sub-lamp group can irradiate on the side edge of the plate, the upper skin sub-lamp group is positioned above the seventeen rotating conveying rollers 16, the vertical distance between the upper skin sub-lamp group and the seventeen rotating conveying rollers 16 is 15mm, the vertical distance can be selected within the range of 5-50mm according to the actual situation, the number of the conveying rollers 16 can be determined according to the working requirement, and can be ten, eleven, twelve, thirteen … … and the like; the curing steps are as follows:
step one, LED curing of surface skin paint of plate
Placing a plate with a surface coated with a skin paint in a roller or sprayed manner on an input conveyor belt structure, driving the plate to move below an LED curing lamp 2 by the input conveyor belt structure, when the plate is in an irradiation range of the LED curing lamp 2, irradiating the plate with light from the LED curing lamp 2 to cure the skin paint bottom layer on the upper surface of the plate, wherein the speed of the input conveyor belt structure is 5 m/min, the speed can also be selected in a range of 2-20m/min according to actual conditions, and the wavelength of the LED curing lamp 2 is 395 nm;
step two, special curing of UV (ultraviolet) skin paint on surface of plate
The UV skin sub-bottom layer on the surface of the plate enters a conveying roller 16 of a middle conveying roller structure after being cured by an LED curing lamp 2, the middle conveying roller structure drives the plate to move between an upper skin sub-lamp group and a lower skin sub-lamp group, when the plate is in the irradiation range of the upper skin sub-lamp group and the lower skin sub-lamp group, the light of the upper skin sub-lamp group irradiates on the surface and the side edge of the plate, the lower skin sub-lamp group irradiates on the side edge of the plate, the energy irradiating on the surface of the plate is equal to the energy irradiating on the side edge of the plate by adjusting the proportional relation of the distance and the quantity of the upper skin sub-lamp group and the lower skin sub-lamp group to the plate, and when the energy is appropriate, the skin sub-paint on the surface of the plate can shrink to form an unsmooth surface and float on the uncured lower layer paint to achieve the surface sub-light effect, the glossiness of the ultra-light effect can reach 0.5-5.0 degree, and the feeling, the speed of the transfer roller 16 is therefore 5 m/min, which can also be selected in the range of 2-20m/min depending on the actual situation;
step three, final curing of the surface skin paint of the plate
The surface skin paint of the plate is irradiated by a skin lamp [ A1] and a skin lamp group, and then enters a conventional UV curing machine from an output conveyor belt structure, and under the irradiation of a mercury lamp, the skin paint on the plate is completely cured, so that the effect as shown in figure 13 is achieved.
In the embodiment, as shown in fig. 4 and 5, the lower sub-group of skin lamps includes fourteen lower sub-lamps 15, and the lower sub-lamps 15 are located at the gap between two adjacent conveying rollers 16, so that the light generated by the lower sub-lamps 15 can irradiate on the plate through the gap between the adjacent conveying rollers 16, and the number of the conveying rollers 16 and the number of the lower sub-lamps 15 can be determined according to the actual situation, but the requirement of plate curing needs to be met; in order to improve the irradiation efficiency of the lower skin sub-lamps 15, the lighting device further comprises fourteen reflecting grooves 19, two walls of each reflecting groove 19 are inclined outwards, the reflecting grooves 19 are arranged on the rack 6, the lower skin sub-lamps 15 are arranged in the corresponding reflecting grooves 19, the power of each lower skin sub-lamp 15 is 300W, the wavelength is 300nm, the power and the wavelength of each lower skin sub-lamp 15 can be determined according to actual conditions, but the power is less than 500W, and the wavelength is required to be within the range of 200nm-400 nm; when the reflection type flat lamp works, the wall of the reflection groove 19 can enable the light generated by the lower skin sub-lamp 15 to be upwards irradiated on a plate, so that the skin sub-paint on the surface of the plate can achieve the effect of breaking through the surface glossiness to form the super-matte effect, namely the light sensitivity of the surface of the plate is 0.5-5.0 degrees.
In this embodiment, as shown in fig. 4 and fig. 6, each upper fura lamp set includes a lamp housing 13, a heat dissipating fan 12 disposed on the lamp housing, five upper fura lamps 17 disposed at an opening of the lamp housing 13, and two reflective plates 18; the lamp housing 13 is arranged on the frame 6 and above the middle position of the conveying structure, the two reflecting plates 18 are respectively arranged above the upper skin sub-lamps 17 and distributed in a shape like a Chinese character 'ba', the power of each upper skin sub-lamp 17 is 300W, the wavelength is 300nm, the power and the wavelength of each upper skin sub-lamp 17 can be determined according to the actual situation, but the power is required to be less than 500W, and the wavelength is required to be within the range of 200nm-400 nm. When the metal plate works, the light generated by the upper skin sub-lamp 17 is irradiated on the plate downwards, the reflecting plate 18 also collects the light generated by the upper skin sub-lamp 17 and reflects the light downwards to irradiate on the plate, so that the skin sub-paint on the surface of the plate achieves the extreme sub-light effect, even if the light sensitivity of the surface of the plate is 0.5-5.0. As shown in fig. 6, the reflector 18 is a reflector with triangular folds, and the triangular folds make the light generated by the upper skin sub-lamp 17 more uniformly irradiate on the plate.
In this embodiment, as shown in fig. 4, the input conveyor belt structure includes an input conveyor belt 1, an input conveyor motor 8, an input conveyor belt driven roller shaft 11, and an input conveyor belt driving roller shaft 14, the input conveyor motor 8 is disposed on the frame 6, the input conveyor belt driven roller shaft 11 and the input conveyor belt driving roller shaft 14 are both disposed on the frame 6 and are rotatable, an output rotating shaft of the input conveyor motor 8 is coupled with the input conveyor belt driving roller shaft 14 to drive the input conveyor belt driving roller shaft 14 to rotate, and the input conveyor belt 1 is sleeved on the input conveyor belt driven roller shaft 11 and the input conveyor belt driving roller shaft 14; the vertical distance between the LED curing lamp 2 and the input conveyor belt 1 is 15mm, and the transmission speed of the input conveyor belt 1, namely the speed of the input conveyor belt structure is 5 m/min; when the plate feeding device works, a plate is placed on the input conveying belt 1, the input conveying belt 1 moves, and the plate moves along with the input conveying belt 1;
the output conveying belt structure comprises an output conveying motor 10, an output conveying belt driving roll shaft 20, an output conveying belt 21 and an output conveying belt driven roll shaft 22, wherein the output conveying motor 10 is arranged on the rack 6, the output conveying belt driving roll shaft 20 and the output conveying belt driven roll shaft 22 are both arranged on the rack 6 and can rotate, an output rotating shaft of the output conveying motor 10 is connected with the output conveying belt driving roll shaft 20 so as to drive the output conveying belt driving roll shaft 20 to rotate, the output conveying belt 21 is sleeved on the output conveying belt driving roll shaft 20 and the output conveying belt driven roll shaft 22, and the transmission speed of the output conveying belt 21, namely the speed of the output conveying belt structure is 5 m/min; when the plate conveying device works, a plate moves onto the output conveying belt 21 from the middle conveying roller structure, the output conveying belt 21 moves, and the plate also moves along with the output conveying belt 21;
the intermediate conveying roller structure further comprises seventeen rotating gears 24 and an intermediate transmission motor 9, the intermediate transmission motor 9 is arranged on the rack 6, the seventeen rotating gears 24 are all rotatably arranged on the rack 6, two adjacent rotating gears 24 are mutually meshed, the output end of the intermediate transmission motor 9 drives one rotating gear 24 to rotate, the rotating gear drives the adjacent rotating gear to rotate, the number of the gears in the rotating gears 24 is the same as that of the conveying rollers 16, one end of each conveying roller 16 is arranged on the rack 6 in a transferring mode, and the other end of each conveying roller 16 is arranged on the corresponding rotating gear; the vertical distance between the upper skin sub-lamp group and the conveying roller 16 is 15mm, and the conveying speed of the conveying roller 16 is 8 m/min; when the plate conveying device works, a plate is moved onto the conveying roller 16 through the input conveying belt 1, and the conveying roller 16 rotates to drive the plate to move.
In this embodiment, as shown in fig. 1 to 4, the dust cover further includes an input dust cover 3, an intermediate dust cover 4, and an output dust cover 5, and the input dust cover 3, the intermediate dust cover 4, and the output dust cover 5 are all disposed on a frame 6; the input dust cover 3 covers the input conveyor belt structure and is positioned at the right side of the LED curing lamp 2; the middle dust cover 4 covers the middle conveying roller structure, the upper skin sub-lamp group and the lower skin sub-lamp group are positioned in the middle dust cover 4, and the middle dust cover 4 is provided with an exhaust hole 41; the output dust cover 5 covers the output conveyer belt structure. When the device works, a plate placed on the input conveyor belt structure is irradiated by the LED curing lamps 2 and then enters the input dust cover 3, then enters the middle dust cover 4 through the input dust cover 3, and is conveyed to the output conveyor belt structure by the middle conveying roller structure to be output after being irradiated by the upper skin sub-lamp group and the lower skin sub-lamp group in the middle dust cover 4.
In this embodiment, as shown in fig. 1 and fig. 3, in order to adjust the up-down position of the LED curing light 2, two height-adjustable adjusting and mounting brackets 7 are further included, the adjusting and mounting brackets 7 are disposed on the front and rear sides of the frame 6, and the LED curing light 2 is disposed on the corresponding adjusting and mounting brackets 7, so that the up-down height of the LED curing light 2 can be adjusted.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (7)
1. A curing method of UV (ultraviolet) skin-friendly paint on the surface of a plate comprises a frame (6), an input conveyor belt structure, a middle conveyor belt structure, an output conveyor belt structure and an LED curing lamp (2); the input conveyor belt structure, the middle conveyor roller structure, the output conveyor belt structure and the LED curing lamps (2) are all arranged on the rack (6), the LED curing lamps (2) are located above the input conveyor belt structure, the vertical distance between the LED curing lamps (2) and the input conveyor belt structure is 5-50mm, and the middle conveyor roller structure comprises more than three conveyor rollers (16); the device is characterized by further comprising more than one upper skin sub-lamp group and more than two lower skin sub-lamp groups, wherein the power of each skin sub-lamp in the upper skin sub-lamp group and each lower skin sub-lamp in the lower skin sub-lamp group is less than 500W, the wavelength of each skin sub-lamp is 200nm-320nm, the upper skin sub-lamp group and each lower skin sub-lamp group are both arranged on the rack (6), the conveying rollers (16) are located between the upper skin sub-lamp group and the lower skin sub-lamp group, the vertical distance between the upper skin sub-lamp group and the conveying rollers (16) is 5-50mm, and each lower skin sub-lamp group (15) is located at the position corresponding to the gap between two adjacent conveying rollers (16) so that light rays emitted by the lower skin sub-lamp groups can irradiate on the side edge of the plate conveniently; the curing steps are as follows:
step one, LED curing of surface skin paint of plate
Placing a plate with UV skin paint roller-coated or sprayed on the surface on an input conveyor belt structure, driving the plate to move under an LED curing lamp (2) by the input conveyor belt structure, and when the plate is in the irradiation range of the LED curing lamp (2), irradiating the plate by the light of the LED curing lamp (2) to cure the UV skin paint bottom layer on the upper surface of the plate, wherein the speed of the input conveyor belt structure is 2-20 m/min;
step two, special curing of UV (ultraviolet) skin paint on surface of plate
The UV skin sub-bottom layer on the surface of the plate enters a conveying roller (16) of a middle conveying roller structure after being cured by an LED curing lamp (2), the middle conveying roller structure drives the plate to move between an upper skin sub-lamp group and a lower skin sub-lamp group, when the plate is in the irradiation range of the upper skin sub-lamp group and the lower skin sub-lamp group, the light of the upper skin sub-lamp group is irradiated on the surface and the side edge of the plate, the lower skin sub-lamp group is irradiated on the side edge of the plate, the energy irradiated on the surface of the plate is equal to the energy irradiated on the side edge of the plate by adjusting the proportional relation between the distance and the quantity of the upper skin sub-lamp group and the lower skin sub-lamp group and the plate, and when the energy is appropriate, the skin sub-paint on the surface of the plate can shrink to form a non-smooth surface and float on the uncured lower layer paint to achieve the surface sub-light effect, the glossiness of the ultra-light effect can reach 0.5-5.0 degree, and the, so called the skin sub-effect, the transport speed of the transport roller (16) is 2-20 m/min;
step three, final curing of UV (ultraviolet) skin paint on surface of plate
And the surface skin paint of the plate is irradiated by the upper skin lamp group and the lower skin lamp group and then enters a conventional UV curing machine from an output conveyor belt structure, and the skin paint on the plate is completely cured under the irradiation of a mercury lamp.
2. The curing method of UV Koyan paint on the surface of a plate material according to claim 1, wherein each Koyan lamp set comprises a lamp shell (13), a heat dissipation fan (12) arranged on the lamp shell, more than two Koyan lamps (17) arranged at the opening of the lamp shell and two reflecting plates (18); the lamp shell (13) is arranged on the rack (6) and positioned above the middle conveying roller structure, the two reflecting plates (18) are respectively arranged above the upper skin sub-lamps (17) and distributed in a splayed manner, the vertical distance between the upper skin sub-lamps (17) and the conveying roller (16) is 5-50mm, the power of each upper skin sub-lamp (17) is less than 500W, and the wavelength is 200nm-320 nm; inferior banks of skin include inferior lamp (15) of skin and reflection recess (19) down, reflection recess (19) are established on frame (6) and are located between two adjacent transfer rollers (16), inferior lamp (15) of skin are established down in corresponding reflection recess (19), and the power of inferior lamp (15) of skin is less than 500W down, and the wavelength is 200nm-320nm, and two walls of reflection recess (19) lean out and are convenient for down the produced light of inferior lamp (15) of skin upwards reflect.
3. The curing method of the UV skin paint on the surface of the plate according to claim 1, characterized in that:
the input conveying belt structure comprises an input conveying belt (1), an input conveying motor (8), an input conveying belt driven roller shaft (11) and an input conveying belt driving roller shaft (14), wherein the input conveying motor (8) is arranged on a rack (6), the input conveying belt driven roller shaft (11) and the input conveying belt driving roller shaft (14) are both arranged on the rack (6) and can rotate, an output rotating shaft of the input conveying motor (8) is connected with the input conveying belt driving roller shaft (14) so as to drive the input conveying belt driving roller shaft (14) to rotate, and the input conveying belt (1) is sleeved on the input conveying belt driven roller shaft (11) and the input conveying belt driving roller shaft (14); the vertical distance between the LED curing lamp (2) and the input conveyor belt (1) is 5-50mm, and the transmission speed of the input conveyor belt (1) is 2-20 m/min;
the output conveying belt structure comprises an output conveying motor (10), an output conveying belt driving roll shaft (20), an output conveying belt (21) and an output conveying belt driven roll shaft (22), wherein the output conveying motor (10) is arranged on a rack (6), the output conveying belt driving roll shaft (20) and the output conveying belt driven roll shaft (22) are arranged on the rack (6) and can rotate, an output rotating shaft of the output conveying motor (10) is connected with the output conveying belt driving roll shaft (20) so as to drive the output conveying belt driving roll shaft (20) to rotate, the output conveying belt (21) is sleeved on the output conveying belt driving roll shaft (20) and the output conveying belt driven roll shaft (22), and the transmission speed of the output conveying belt (21) is 2-20 m/min;
the middle conveying roller structure further comprises three or more rotating gears (24) and a middle transmission motor (9), the middle transmission motor (9) is arranged on the frame (6), the rotating gears (24) are arranged on the frame (6) in a rotating mode, the two adjacent rotating gears (24) are meshed with each other, the output end of the middle transmission motor (9) drives one gear set (24) to rotate, one end of the conveying roller (16) is arranged on the frame (6) in a transferring mode, and the other end of the conveying roller (16) is arranged on the corresponding transferring gear (24).
4. The curing method of UV Deutsche paint on the surface of a plate material according to claim 2, wherein said reflective plate (18) is a reflective plate with triangular corrugations.
5. The curing method of UV furnitor paint on the surface of a plate material according to claim 1, characterized by further comprising an input dust cover (3), an intermediate dust cover (4) and an output dust cover (5); input dust cover (3), middle dust cover (4) and output dust cover (5) all establish in frame (6), input dust cover (3) cover just is located the right side of LED curing lamp (2) on the input conveyer belt structure, middle dust cover (4) cover is structural and go up the sub-banks of skin and the sub-banks of skin is located middle dust cover down in the middle of the conveyer belt, is equipped with exhaust hole (41) on middle dust cover (4), output dust cover (5) cover is in the output conveyer belt structure.
6. The curing method of the UV Piya paint on the surface of the board according to claim 1, characterized by further comprising two height-adjustable adjusting and mounting brackets (7), wherein the adjusting and mounting brackets (7) are arranged on the front side and the rear side of the rack (6), and the LED curing lamps (2) are arranged on the corresponding adjusting and mounting brackets (7) so that the vertical height of the LED curing lamps (2) can be adjusted.
7. The curing method of UV Korea paint on the surface of a board according to claim 1, characterized in that the wavelength of the LED curing lamp (2) is 395 +/-10 nm.
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| CN112170141B (en) | 2023-11-28 |
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