An air-cooled UVLED curing device

Abstract

The application discloses a kind of air-cooled UVLED solidification device, including shell assembly, light source assembly and first heat dissipation mechanism, the shell assembly includes lower shell and upper shell;The light source assembly is used to emit ultraviolet light to the conveying channel;First heat dissipation mechanism includes a plurality of first heat dissipation fins and a plurality of first heat dissipation fans, each first heat dissipation fin is fixed on light source assembly, one end of each first heat dissipation fin is towards first air inlet, the air inlet end of each first heat dissipation fan is towards the other end of each first heat dissipation fin, and the air outlet end is communicated with corresponding first air outlet.The beneficial effects of the present application are: external air enters the upper shell from each first air inlet, then passes through each first heat dissipation fin, and is discharged from the first air outlet after taking away the heat of the first heat dissipation fin, so that the light source assembly is kept at a lower working temperature, thereby keeping the photoelectric conversion efficiency and the radiation intensity of the light source stable, and improving the UV curing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ultraviolet curing technology, in particular to a wind-cooled UVLED curing device. BACKGROUND

[0002] UV curing adhesive, also known as photosensitive adhesive, shadowless adhesive (UV adhesive), is a kind of adhesive that must be cured by ultraviolet irradiation. It can be used as an adhesive, and also can be used as a glue for paint, coating, ink, etc. UV is the abbreviation of English Ultraviolet Rays, which means ultraviolet light. Ultraviolet (UV) is invisible to the naked eye, which is a part of electromagnetic radiation other than visible light, with a wavelength ranging from 10 to 400 nm. The curing principle of UV curing adhesive is that the photoinitiator (or photosensitizer) in UV curing material absorbs ultraviolet light under ultraviolet irradiation to produce active free radicals or cations, which initiate monomer polymerization and crosslinking chemical reaction, so that the adhesive changes from liquid to solid within a few seconds. UV curing materials (UV coatings, UV inks, UV adhesives, etc.) are widely used in PCB circuit boards, microelectronic processing, papermaking, display, household appliances, wood processing, home decoration, automobiles, printing, machinery, 3D printing, sports industry, biomedicine, optical fiber communication, etc.

[0003] UVLED is an ultraviolet light source. After being used for a period of time, the temperature of UVLED will rise rapidly. When the temperature rises, the photoelectric conversion efficiency of the light source chip of UVLED will be greatly reduced, resulting in a low radiation intensity of the light source and poor curing effect. In the prior art, the heat dissipation design of the light source chip of UVLED is only to simply set a heat sink at the light source, without optimizing the air duct of the light source chip, resulting in poor heat dissipation effect of UVLED. SUMMARY

[0004] Therefore, it is necessary to provide a wind-cooled UVLED curing device to solve the technical problem of poor heat dissipation effect of the light source chip of UVLED, which leads to reduced photoelectric conversion efficiency and low radiation intensity of the light source.

[0005] In order to achieve the above purpose, the present application provides a wind-cooled UVLED curing device, comprising:

[0006] A shell assembly comprising a lower shell and an upper shell, the lower shell and the upper shell are hinged, when the lower shell and the upper shell are attached, a conveying channel for sheet material is formed between the lower shell and the upper shell, a plurality of first air inlet holes are formed on the side wall of the upper shell, and a plurality of first air outlet holes are formed on the upper end face of the upper shell;

[0007] A light source assembly is arranged in the upper shell and configured to emit ultraviolet light toward the conveying channel.

[0008] A first heat dissipation mechanism includes a plurality of first heat dissipation fins and a plurality of first heat dissipation fans. Each of the first heat dissipation fins is fixed to the light source assembly, and one end of each of the first heat dissipation fins faces the first air inlet. An air inlet end of each of the first heat dissipation fans faces the other end of each of the first heat dissipation fins. An air outlet end of each of the first heat dissipation fans is in communication with a corresponding first air outlet.

[0009] In some embodiments, a plurality of second air inlets are formed in one sidewall of the lower shell, and a plurality of second air outlets are formed in an opposite sidewall of the lower shell. The air-cooled UV LED curing device further includes a second heat dissipation mechanism. The second heat dissipation mechanism includes a base plate, a plurality of second heat dissipation fins, a second heat dissipation fan, and a third heat dissipation fan. The base plate is arranged in the lower shell. Each of the second heat dissipation fins is fixed to a lower end surface of the base plate. An air inlet end of the second heat dissipation fan is in communication with the second air inlet. An air outlet end of the second heat dissipation fan faces one end of each of the second heat dissipation fins. An air inlet end of the third heat dissipation fan faces the other end of each of the second heat dissipation fins. An air outlet end of the third heat dissipation fan is in communication with the second air outlet.

[0010] In some embodiments, the light source assembly includes two mounting plates and a plurality of COB modules. The two mounting plates are arranged opposite to each other. Each of the COB modules is fixed to a lower end surface of each of the mounting plates. Each of the first heat dissipation fins is fixed to an upper end surface of each of the mounting plates.

[0011] In some embodiments, the light source assembly further includes a plurality of cylindrical lenses. Each of the cylindrical lenses is arranged below each of the COB modules and above the conveying channel.

[0012] In some embodiments, a center of each of the first heat dissipation fins is formed with a gap. Each of the gaps is arranged side by side to form an air flow channel.

[0013] In some embodiments, the first heat dissipation mechanism further includes an air guide cover. A lower end and one side of the air guide cover are open. The lower end of the air guide cover is arranged above the air outlet end of the first heat dissipation fan.

[0014] In some embodiments, the side opening of the air guide cover is in communication with a workshop air exhaust system.

[0015] In some embodiments, the lower shell and the upper shell are hinged via a hinge.

[0016] In some embodiments, the shell assembly further comprises a hook fixed to the lower shell and a buckle movably connected to the upper shell, when the upper shell and the lower shell are attached, the buckle can be hung on the hook.

[0017] In some embodiments, a handle is arranged on the upper shell.

[0018] Compared with the prior art, the technical scheme provided by the present application has the beneficial effects that: in use, the sheet material is passed into the conveying channel P, the light source assembly is turned on, the light source assembly emits ultraviolet light towards the sheet material in the conveying channel P, the ink on the surface of the sheet material is cured, at the same time, the heat generated by the light source assembly is transferred to the first heat dissipation fins, the first heat dissipation fan is turned on, external air enters the upper shell from each first air inlet, then passes through each first heat dissipation fin, and is discharged from the first air outlet after taking away the heat of the first heat dissipation fin, so that the continuous heat dissipation of the light source assembly can be realized, the light source assembly is kept at a relatively low working temperature, the photoelectric conversion efficiency and the radiation intensity of the light source are kept stable, and the UV curing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective structural schematic view of an embodiment of the air-cooled UVLED curing device provided by the present application;

[0020] Figure 2 is Figure 1 the front view of the air-cooled UVLED curing device in

[0021] Figure 3 is Figure 2 the sectional view of section A-A in

[0022] Figure 4 is Figure 1 the exploded view of the air-cooled UVLED curing device in

[0023] Figure 5 is Figure 1 the perspective structural schematic view of the air-cooled UVLED curing device in after omitting the wind deflector in

[0024] Figure 6 is Figure 5 the perspective structural schematic view of the air-cooled UVLED curing device in after omitting the shell assembly in

[0025] Figure 7 is Figure 6 the perspective structural schematic view of the air-cooled UVLED curing device in after the upper shell 12 is turned to the side in

[0026] Figure 8 is Figure 5the second heat dissipation mechanism in the second heat dissipation mechanism;

[0027] In the figure: 1-housing assembly, 11-lower shell, 111-supporting plate, 112-light shield, 113-second air inlet, 114-second air outlet, 12-upper shell, 121-first air inlet, 122-first air outlet, 13-hinge, 14-hook, 15-buckle, 16-handle, 2-light source assembly, 21-mounting plate, 22-COB module, 23-column lens, 3-first heat dissipation mechanism, 31-first heat dissipation fin, 311-notch, 32-first heat dissipation fan, 33-duct, 4-second heat dissipation mechanism, 41-pad, 42-second heat dissipation fin, 43-second heat dissipation fan, 44-third heat dissipation fan, P-conveying channel. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described in detail below with reference to the drawings, wherein the drawings constitute a part of this application and illustrate the principles of the present application together with the embodiments thereof, but are not intended to limit the scope of the present application.

[0029] Please refer to Figures 1-8 The present application provides an air-cooled UVLED curing device, which comprises a housing assembly 1, a light source assembly 2 and a first heat dissipation mechanism 3.

[0030] The housing assembly 1 comprises a lower shell 11 and an upper shell 12, the lower shell 11 is hinged to the upper shell 12, when the lower shell 11 and the upper shell 12 are attached, a conveying channel P for sheet materials (such as printed paper) is formed between the lower shell 11 and the upper shell 12, a plurality of first air inlets 121 are formed on the side wall of the upper shell 12, and a plurality of first air outlets 122 are formed on the upper end surface of the upper shell 12; in this embodiment, in order to facilitate supporting the sheet materials entering the conveying channel P, supporting plates 111 are arranged at both ends of the conveying channel P, and in order to shield light, light shields 112 are arranged at both ends of the conveying channel P, and the supporting plates 111 and the light shields 112 are fixed to the lower shell 11.

[0031] The light source assembly 2 is arranged in the upper shell 12 and is used for emitting ultraviolet light towards the conveying channel P;

[0032] The first heat dissipation mechanism 3 comprises a plurality of first heat dissipation fins 31 and a plurality of first heat dissipation fans 32. Each of the first heat dissipation fins 31 is fixed on the light source assembly 2, and one end of each of the first heat dissipation fins 31 faces the first air inlet hole 121. The air inlet end of each of the first heat dissipation fans 32 faces the other end of each of the first heat dissipation fins 31. The air outlet end of each of the first heat dissipation fans 32 is in communication with the corresponding first air outlet hole 122. In the present application, the air duct is short, has no sharp bend and has smooth transition, thereby reducing air resistance and improving heat exchange efficiency.

[0033] In use, the sheet material is fed into the conveying channel P, and the light source assembly 2 is turned on to emit ultraviolet light towards the sheet material in the conveying channel P to cure the ink on the surface of the sheet material. At the same time, the heat generated by the light source assembly 2 is transferred to the first heat dissipation fins 31. The first heat dissipation fans 32 are turned on, and the external air enters the upper shell 12 from each of the first air inlet holes 121, passes through each of the first heat dissipation fins 31 and is discharged from the first air outlet hole 122 after taking away the heat of the first heat dissipation fins 31. Thus, the continuous heat dissipation of the light source assembly 2 can be realized, and the light source assembly 2 can be kept at a low working temperature, so that the photoelectric conversion efficiency and the radiation intensity of the light source remain stable, and the UV curing effect is improved.

[0034] In order to prevent heat accumulation caused by ultraviolet light irradiation in the conveying channel P, please refer to Figures 4-8 In a preferred embodiment, a plurality of second air inlet holes 113 are formed in one side wall of the lower shell 11, and a plurality of second air outlet holes 114 are formed in the opposite side wall of the lower shell 11. The air-cooled UV LED curing device further comprises a second heat dissipation mechanism 4. The second heat dissipation mechanism 4 comprises a pad 41, a plurality of second heat dissipation fins 42, a second heat dissipation fan 43 and a third heat dissipation fan 44. The pad 41 is arranged in the lower shell 11. Each of the second heat dissipation fins 42 is fixed on the lower end surface of the pad 41. The air inlet end of the second heat dissipation fan 43 is in communication with the second air inlet hole 113. The air outlet end of the second heat dissipation fan 44 faces one end of each of the second heat dissipation fins 42. The air inlet end of the third heat dissipation fan 44 faces the other end of each of the second heat dissipation fins 42. The air outlet end of the third heat dissipation fan 43 is in communication with the second air outlet hole 114. The function of the second heat dissipation mechanism 4 is different from that of the first heat dissipation mechanism 3. The first heat dissipation mechanism 3 is used for dissipating heat of the light source assembly 2, and the heat is generated during the operation of the light source assembly 2. The second heat dissipation mechanism 4 is used for dissipating heat caused by the light-heat effect due to the ultraviolet light irradiation in the conveying channel P.

[0035] In order to realize the function of the light source assembly 2, please refer to Figure 3 and Figure 4In a preferred embodiment, the light source assembly 2 comprises two mounting plates 21 and a plurality of COB modules 22, the two mounting plates 21 are oppositely arranged in an inclined manner, each of the COB modules 22 is fixed on the lower end surface of the two mounting plates 21, and each of the first heat dissipation fins 31 is fixed on the upper end surface of the mounting plate 21. In this embodiment, the two mounting plates 21 are arranged in an inclined manner, so as to facilitate the inward convergence of the light emitted by each of the COB modules 22, and improve the intensity of the ultraviolet light.

[0036] In order to further facilitate the convergence of the ultraviolet light, please refer to Figure 3 and Figure 4 In a preferred embodiment, the light source assembly 2 further comprises a plurality of cylindrical lenses 23, each of the cylindrical lenses 23 is arranged below each of the COB modules 22 and above the conveying channel P. By arranging the cylindrical lenses 23, the ultraviolet light emitted by each of the COB modules 22 can be converged, thereby improving the intensity of the ultraviolet light.

[0037] In order to improve the heat dissipation effect of the first heat dissipation fins 31, please refer to Figure 4 In a preferred embodiment, the center of each of the first heat dissipation fins 31 is formed with a notch 311, and each of the notches 311 is arranged in parallel to form an air flow channel. The air flow can be guided to form turbulence, thereby improving the heat exchange efficiency.

[0038] In order to facilitate heat dissipation, please refer to Figures 1-4 In a preferred embodiment, the first heat dissipation mechanism 3 further comprises a wind deflector 33, the lower end and one side of the wind deflector 33 are open, the lower end of the wind deflector 33 is arranged above the air outlet end of the first heat dissipation fan 32, and the side opening of the wind deflector 33 is communicated with the workshop exhaust system. The main function of the wind deflector 33 is to collect the hot air discharged by heat dissipation, and then the hot air is discharged to the outdoor through the workshop exhaust system. Thus, the hot air circulation into the light source is avoided, and the heat dissipation effect is improved.

[0039] In order to specifically realize the hinging of the upper shell 12 and the lower shell 11, please refer to Figures 1-6 In a preferred embodiment, the lower shell 11 and the upper shell 12 are hinged through a hinge 13. The upper shell 12 and the lower shell 11 are connected in a hinged manner, which is convenient for maintaining the internal equipment. For this device, the core component (light source assembly 2) is arranged above the conveying channel P. When the light source assembly 2 needs to be maintained, the upper shell 12 only needs to be turned upward. At this time, the light source assembly 2 is exposed outside, thereby facilitating the maintenance.

[0040] In order to facilitate the fixation of the upper shell 12 and the lower shell 11, please refer to Figures 1-7In a preferred embodiment, the shell assembly 1 further comprises a hook 14 fixed to the lower shell 11 and a buckle 15 movably connected to the upper shell 12, when the upper shell 12 and the lower shell 11 are attached, the buckle 15 can be hung on the hook 14.

[0041] For the convenience of rotating the upper shell 12, please refer to Figures 1-7 In a preferred embodiment, the upper shell 12 is provided with a handle 16.

[0042] In order to better understand the present application, the working process of the air-cooled UV LED curing device provided by the present application will be described in detail below. Figures 1-8 In use, the sheet material is passed into the conveying channel P, the light source assembly 2 is turned on, the light source assembly 2 emits ultraviolet light to the sheet material in the conveying channel P, and the ink on the surface of the sheet material is cured. At the same time, the heat generated by the light source assembly 2 is transferred to the first heat dissipation fins 31, the first heat dissipation fan 32 is turned on, the external air enters the upper shell 12 from each first air inlet 121, then passes through each first heat dissipation fin 31, and after taking away the heat of the first heat dissipation fin 31, it is discharged from the first air outlet 122, thereby realizing the continuous heat dissipation of the light source assembly 2, keeping the light source assembly 2 at a lower working temperature, thereby keeping the photoelectric conversion efficiency and the radiation intensity of the light source stable, and improving the UV curing effect.

[0043] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An air-cooled UVLED curing device, characterized by, include: The housing assembly includes a lower housing and an upper housing. The lower housing is hinged to the upper housing. When the lower housing is attached to the upper housing, a conveying channel for thin sheet material is formed between the lower housing and the upper housing. The side wall of the upper housing is provided with a plurality of first air inlets, and the upper end face of the upper housing is provided with a plurality of first air outlets. A light source assembly, which is disposed inside the upper housing and is used to emit ultraviolet light toward the delivery channel; The first heat dissipation mechanism includes a plurality of first heat dissipation fins and a plurality of first heat dissipation fans. Each of the first heat dissipation fins is fixed on the light source assembly. One end of each of the first heat dissipation fins faces the first air inlet. The air inlet of each of the first heat dissipation fans faces the other end of each of the first heat dissipation fins. The air outlet of each of the first heat dissipation fans is connected to the corresponding first exhaust port. Several second air inlets are provided on one side wall of the lower shell, and several second air outlets are provided on the opposite side wall of the lower shell. The air-cooled UVLED curing device further includes a second heat dissipation mechanism, which includes a pad, several second heat dissipation fins, a second heat dissipation fan, and a third heat dissipation fan. The pad is disposed inside the lower shell, and each of the second heat dissipation fins is fixed to the lower end surface of the pad. The air inlet end of the second heat dissipation fan is connected to the second air inlet hole, and the air outlet end of the second heat dissipation fan faces one end of each of the second heat dissipation fins. The air inlet end of the third heat dissipation fan faces the other end of each of the second heat dissipation fins, and the air outlet end of the third heat dissipation fan is connected to the second exhaust port.

2. The air-cooled UVLED curing device of claim 1, wherein, The light source assembly includes two mounting plates and several COB modules. The two mounting plates are arranged at an angle relative to each other. Each COB module is fixed to the lower end surface of the two mounting plates, and each of the first heat dissipation fins is fixed to the upper end surface of the mounting plates.

3. The air-cooled UVLED curing device of claim 2, wherein, The light source assembly also includes several cylindrical lenses, each of which is disposed below each of the COB modules and above the conveying channel.

4. The air-cooled UVLED curing device of claim 2, wherein, Each of the first heat dissipation fins has a notch at its center, and the notches are arranged side by side to form an airflow channel.

5. The air-cooled UVLED curing device of claim 1, wherein, The first heat dissipation mechanism also includes an air guide shroud, which has an opening at its lower end and one side, with the lower end of the air guide shroud covering the air outlet of the first cooling fan.

6. The air-cooled UVLED curing device of claim 5, wherein, The side opening of the air guide hood is connected to the workshop exhaust system.

7. The air-cooled UVLED curing device of claim 1, wherein, The lower shell and the upper shell are hinged together by a hinge.

8. The air-cooled UVLED curing device of claim 1, wherein, The housing assembly also includes a hook and a buckle. The hook is fixed to the lower housing, and the buckle is movably connected to the upper housing. When the upper housing and the lower housing are in contact, the buckle can be hung on the hook.

9. The air-cooled UVLED curing device of claim 1, wherein, The upper shell is provided with a handle.

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