Dual shutter uv curing lamp with air and liquid cooling

Abstract

The utility model relates to a kind of double-shutter UV curing lamps with air cooling and liquid cooling, including outer shell, the inside of outer shell is provided with mounting cavity, UV lamp tube and shutter mechanism are provided in mounting cavity, shutter mechanism includes two shutters and the drive transmission assembly of driving the movement of two shutters;Liquid cooling plate is also provided in mounting cavity, liquid cooling plate is surrounded with two shutters in the outer periphery of UV lamp tube;The left and right sides of liquid cooling plate are respectively provided with first liquid channel, second liquid channel is respectively provided in two shutters;The outside of outer shell is connected with the air extraction pipeline communicated with mounting cavity. By surrounding liquid cooling plate and two shutters in the outer periphery of UV lamp tube, and liquid cooling plate and shutter are flowed with cooling liquid, most of the heat generated by UV lamp tube is absorbed by cooling liquid and taken away, and air extraction pipeline is connected on the outside of outer shell, air extraction pipeline takes away part of heat while air is extracted, further strengthen the cooling effect of UV curing lamp.

Description

Technical Field

[0001] This utility model relates to the field of UV curing devices, and in particular to a dual-shutter UV curing lamp with both air cooling and liquid cooling. Background Technology

[0002] UV printing is a printing process that uses ultraviolet light to instantly cure inks. Compared to traditional solvent-based inks, UV inks emit almost no harmful gases, making them environmentally friendly and operator-friendly. They also dry quickly and have strong adhesion, making UV printing widely used in the printing industry. The UV printing process requires a UV curing lamp to irradiate the printed material. To precisely control the timing and range of UV light irradiation and avoid unnecessary problems, a switchable shutter mechanism is needed in the UV curing lamp. Furthermore, because UV lamps generate a large amount of heat while emitting ultraviolet light (for example, quartz lamps can reach temperatures of 600–800°C), the ambient temperature around the UV lamp can rise significantly. This can cause the printed material to shrink, leading to misregistration during printing, and can also cause burns due to the increased temperature of the UV curing lamp's outer casing. Therefore, cooling the UV lamp is crucial. Most existing UV curing lamps only use one of two cooling methods—air cooling or liquid cooling—which is ineffective.

[0003] Therefore, it is necessary to provide a technical solution to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a dual-shutter UV curing lamp with both air cooling and liquid cooling, which can solve the technical problems in the prior art such as poor printing accuracy and burn accidents caused by the poor cooling effect of the UV curing lamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dual-shutter UV curing lamp with both air and liquid cooling includes a housing. An installation cavity is provided inside the housing, housing a UV lamp tube and a shutter mechanism. The shutter mechanism includes two shutters and a drive transmission assembly for moving the two shutters. A liquid cooling plate is also provided inside the installation cavity, surrounding the UV lamp tube along with the two shutters. First liquid channels are provided on both the left and right sides of the liquid cooling plate, and second liquid channels are provided in each of the two shutters. An exhaust duct communicating with the installation cavity is connected to the outside of the housing.

[0006] Furthermore, one end of the outer casing is provided with a liquid inlet and a liquid outlet, the liquid inlet being connected to one of the first liquid channels and the liquid outlet being connected to the other first liquid channel.

[0007] Furthermore, a first connecting block is provided at the end of the liquid cooling plate away from the liquid inlet, and a third liquid channel is provided in the first connecting block. The ends of the two first liquid channels away from the liquid inlet are connected through the third liquid channel.

[0008] Furthermore, the shutter mechanism also includes a first support and a second support, with the two ends of the two shutters rotatably disposed in the first support and the second support, respectively. The first support is disposed on the end of the shutter near the liquid inlet, and the second support is disposed on the end of the shutter away from the liquid inlet.

[0009] Furthermore, a fourth liquid channel is provided on both the left and right sides of the first support, and the two fourth liquid channels are not connected to each other; the two first liquid channels are respectively connected to the second liquid channel located on the same side through the two fourth liquid channels; a fifth liquid channel is provided in the second support, and the ends of the two second liquid channels away from the liquid inlet are connected through the fifth liquid channel.

[0010] Furthermore, each shutter is connected to a rotating support rod at both ends, and the rotating support rods at both ends are rotatably disposed in the first support seat and the second support seat, respectively. The second liquid channel extends into the rotating support rods at both ends, and the rotating support rods at both ends are respectively provided with connecting holes that communicate with the fourth liquid channel and the fifth liquid channel.

[0011] Furthermore, the drive transmission assembly includes a rotary cylinder and a first gear connected to the output end of the rotary cylinder. Two second gears are respectively connected to the two rotating support rods near the liquid inlet. The two second gears mesh with each other, and the first gear meshes with one of the second gears.

[0012] Furthermore, both ends of the UV lamp tube are respectively mounted in the first support base and the second support base via support blocks.

[0013] Furthermore, the liquid cooling plate has multiple through holes in its center.

[0014] The beneficial effects of this utility model are as follows: (1) By surrounding the UV lamp tube with a liquid cooling plate and two shutters, and with a first liquid channel in the liquid cooling plate and a second liquid channel in the shutters, coolant flows in the first and second liquid channels. Therefore, the heat transferred from the UV lamp tube to the surrounding area will first pass through the liquid cooling plate and shutters surrounding it. Most of the heat passing through the liquid cooling plate and shutters will be absorbed and carried away by the coolant, thereby effectively reducing the possibility of heat transfer to the outer shell and printed products. Furthermore, an exhaust pipe connected to the mounting cavity is connected to the outside of the outer shell. The exhaust pipe will draw away the air in the mounting cavity and carry away some of the heat generated by the UV lamp tube, further enhancing the cooling effect of the UV curing lamp. This effectively prevents the outer shell from heating up and causing burns, and effectively avoids the shrinkage of printed products that affects printing accuracy. (2) By setting a fourth liquid channel in the first support and a fifth liquid channel in the second support, the second liquid channel extends to the rotating support rods at both ends, and the rotating support rods at both ends are respectively provided with connecting holes that communicate with the fourth liquid channel and the fifth liquid channel. In other words, the first support, the second support and the two rotating support rods are used as part of the coolant flow channel. One component undertakes multiple functions, which can effectively reduce the number of components in the UV curing lamp and simplify the overall structure of the UV curing lamp. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the UV curing lamp of this utility model.

[0016] Figure 2 This is a partial structural diagram of the UV curing lamp of this utility model after removing the outer shell and exhaust pipe.

[0017] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0018] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure at point BB.

[0019] Figure 5 This is an exploded view of part of the structure of the UV curing lamp of this utility model.

[0020] Figure 6 This is a schematic diagram of the liquid cooling plate of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1-Outer shell; 11-Mounting cavity; 2-UV lamp tube; 20-Support block; 31-Shutter; 311-Second liquid channel; 32-Drive transmission assembly; 321-Rotary cylinder; 322-First gear; 323-Second gear; 33-First support seat; 331-Fourth liquid channel; 34-Second support seat; 35-Rotating support rod; 351-Connecting hole; 4-Liquid cooling plate; 40-Receiving cavity; 41-First liquid channel; 42-First connecting block; 43-Through hole; 44-Second connecting block; 5-Exhaust pipe; 61-Liquid inlet; 62-Liquid outlet. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0023] like Figures 1 to 6 As shown, this utility model provides a dual-shutter UV curing lamp with both air cooling and liquid cooling, comprising a housing 1, an installation cavity 11 inside the housing 1, a UV lamp tube 2 and a shutter mechanism inside the installation cavity 11, the shutter mechanism including two shutters 31 and a drive transmission assembly 32 for driving the two shutters 31; a liquid cooling plate 4 is also provided inside the installation cavity 11, the liquid cooling plate 4 and the two shutters 31 surrounding the UV lamp tube 2; first liquid channels 41 are respectively provided on the left and right sides of the liquid cooling plate 4, and second liquid channels 311 are respectively provided in the two shutters 31; an exhaust pipe 5 communicating with the installation cavity 11 is connected to the outside of the housing 1. Specifically, the liquid cooling plate 4 is located in the middle of the installation cavity 11, the two shutters 31 are located below the liquid cooling plate 4, and the liquid cooling plate 4 and the two shutters 31 together form a receiving cavity 40, in which the UV lamp tube 2 is placed.

[0024] In actual use, the heat generated by the UV lamp 2 is transferred outwards from the UV lamp 2 as the center. Since the liquid cooling plate 4 and the two shutters 31 are arranged around the UV lamp 2, and the liquid cooling plate 4 is provided with a first liquid channel 41 and the shutters 31 are provided with a second liquid channel 311, and coolant flows in the first liquid channel 41 and the second liquid channel 311, the heat transferred from the UV lamp 2 to the surrounding area will first pass through the liquid cooling plate 4 and the shutters 31 surrounding it. Most of the heat passing through the liquid cooling plate 4 and the shutters 31 is absorbed and carried away by the coolant, thereby effectively reducing the possibility of heat being transferred to the outer casing 1 and the printed product; the coolant can be, but is not limited to, water, glycerin or ethylene glycol. In addition, an exhaust duct 5 connected to the mounting cavity 11 is connected to the outside of the outer shell 1. Specifically, the exhaust duct 5 is located at the top of the outer shell 1, and the end of the exhaust duct 5 away from the outer shell 1 is connected to an exhaust fan. Under the action of the exhaust fan, the exhaust duct 5 draws away the air in the mounting cavity 11 and takes away some of the heat generated by the UV lamp tube 2, further enhancing the cooling effect of the UV curing lamp.

[0025] Furthermore, one end of the outer casing 1 is provided with a liquid inlet 61 and a liquid outlet 62. The liquid inlet 61 is connected to one of the first liquid channels 41, and the liquid outlet 62 is connected to the other first liquid channel 41. The end of the liquid cooling plate 4 away from the liquid inlet 61 is provided with a first connecting block 42, in which a third liquid channel is provided. The ends of the two first liquid channels 41 away from the liquid inlet 61 are connected through the third liquid channel. In this embodiment, the coolant enters one of the first liquid channels 41 through the liquid inlet 61, then passes through the first connecting block 42 into the other first liquid channel 41, and finally flows out through the liquid outlet 62.

[0026] Furthermore, the shutter mechanism also includes a first support 33 and a second support 34. The two ends of the two shutters 31 are rotatably disposed in the first support 33 and the second support 34, respectively. The first support 33 is disposed on the end of the shutter 31 near the liquid inlet 61, and the second support 34 is disposed on the end of the shutter 31 away from the liquid inlet 61. Furthermore, a fourth liquid channel 331 is provided on both the left and right sides of the first support 33, and the two fourth liquid channels 331 are not interconnected. The two ends of the liquid cooling plate 4 are also respectively disposed on the tops of the first support 33 and the second support 34. The two first liquid channels 41 are respectively connected to the second liquid channels 311 located on the same side through the two fourth liquid channels 331. A fifth liquid channel is provided in the second support 34, and the ends of the two second liquid channels 311 away from the liquid inlet 61 are connected through the fifth liquid channel. In addition, each shutter 31 is connected to a rotating support rod 35 at both ends. The rotating support rods 35 at both ends are rotatably disposed in the first support seat 33 and the second support seat 34, respectively. The second liquid channel 311 extends into the rotating support rods 35 at both ends. The rotating support rods 35 at both ends are respectively provided with a connecting hole 351 that communicates with the fourth liquid channel 331 and the fifth liquid channel.

[0027] In actual use, when coolant enters one of the first liquid channels 41 through the inlet port 61, a portion of the coolant flows sequentially along the first liquid channel 41 to the first connecting block 42 and the other first liquid channel 41; another portion of the coolant flows into the fourth liquid channel 331 on the same side and then into the second liquid channel 311 on the same side, and flows sequentially along the second liquid channel 311 to the fifth liquid channel and the other second liquid channel 311, then flows along the other second liquid channel 311 to the fourth liquid channel 331 on the same side (i.e., the other fourth liquid channel 331) and then into the first liquid channel 41 on the same side (i.e., the other first liquid channel 41), and finally all the coolant flows out through the outlet port 62 through the other first liquid channel 41.

[0028] In this embodiment, on the one hand, by setting a first support 33 and a second support 34, and by rotatably setting both ends of the shutter 31 in the first support 33 and the second support 34 through rotating support rods 35, it is ensured that the two shutters 31 can be smoothly opened or closed under the action of the drive transmission assembly 32; on the other hand, by improving the flow channel of the coolant, specifically by setting a fourth liquid channel 331 in the first support 33 and a fifth liquid channel in the second support 34, the second liquid channel 311 extends to the rotating support rods 35 at both ends, and the rotating support rods 35 at both ends are respectively provided with connecting holes 351 that communicate with the fourth liquid channel 331 and the fifth liquid channel, so that only one liquid inlet port 61 and one liquid outlet port 62 need to be set in the UV curing lamp to realize the flow of coolant in the liquid cooling plate 2 and the two shutters 31. In this embodiment, by using the first support 33, the second support 34, and the two rotating support rods 35 as part of the coolant flow channel, one component performs multiple functions, which can effectively reduce the number of components in the UV curing lamp and simplify the overall structure of the UV curing lamp.

[0029] Furthermore, the drive transmission assembly 32 includes a rotary cylinder 321 and a first gear 322 connected to the output end of the rotary cylinder 321. Two second gears 323 are respectively connected to the two rotating support rods 35 near the liquid inlet 61. The two second gears 323 mesh with each other, and the first gear 322 meshes with one of the second gears 323. Of course, in other embodiments, other types of drive transmission assemblies can be used, as long as they can achieve the opening and closing of the two shutters 31; these will not be elaborated upon here.

[0030] Furthermore, both ends of the UV lamp tube 2 are respectively mounted in the first support base 33 and the second support base 34 via support blocks 20. Specifically, the bottom of the first support base 33 and the second support base 34 are provided with mounting notches, the support blocks 20 are disposed in the mounting notches, and the top of the support blocks 20 is provided with support grooves, in which both ends of the UV lamp tube 2 are placed.

[0031] Furthermore, the liquid cooling plate 4 has multiple through holes 43 in its center. In this embodiment, by providing through holes 43, the air in the receiving cavity 40 can be drawn into the exhaust pipe 5 by the exhaust fan through the through holes 43, so as to remove the air around the UV lamp tube 2 and thus remove some of the heat generated by the UV lamp tube 2.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dual-shutter UV curing lamp with both air cooling and liquid cooling, comprising a housing (1), wherein a mounting cavity (11) is provided inside the housing (1), and a UV lamp tube (2) and a shutter mechanism are provided inside the mounting cavity (11), wherein the shutter mechanism comprises two shutters (31) and a drive transmission assembly (32) for driving the two shutters (31) to move; characterized in that: The mounting cavity (11) is also provided with a liquid cooling plate (4), which is arranged around the UV lamp tube (2) along with the two shutters (31); a first liquid channel (41) is provided on both the left and right sides of the liquid cooling plate (4), and a second liquid channel (311) is provided in each of the two shutters (31); an exhaust pipe (5) connected to the mounting cavity (11) is connected to the outer side of the outer shell (1).

2. The dual shuttered UV curing lamp with air and liquid cooling according to claim 1, characterized in that: One end of the outer shell (1) is provided with a liquid inlet (61) and a liquid outlet (62). The liquid inlet (61) is connected to one of the first liquid channels (41), and the liquid outlet (62) is connected to the other first liquid channel (41).

3. The dual-shutter UV curing lamp with air cooling and liquid cooling according to claim 2, characterized in that: The liquid cooling plate (4) is provided with a first connecting block (42) at one end away from the liquid inlet (61). A third liquid channel is provided in the first connecting block (42). The two first liquid channels (41) are connected at one end away from the liquid inlet (61) through the third liquid channel.

4. The dual-shutter UV curing lamp with air cooling and liquid cooling as described in claim 2 or 3, characterized in that: The shutter mechanism further includes a first support (33) and a second support (34). The two ends of the two shutters (31) are rotatably disposed in the first support (33) and the second support (34), respectively. The first support (33) is disposed on the end of the shutter (31) near the liquid inlet (61), and the second support (34) is disposed on the end of the shutter (31) away from the liquid inlet (61).

5. The dual shuttered UV curing lamp with air and liquid cooling according to claim 4, characterized in that: The first support (33) has a fourth liquid channel (331) on both the left and right sides, and the two fourth liquid channels (331) are not connected to each other; the two first liquid channels (41) are respectively connected to the second liquid channel (311) located on the same side through the two fourth liquid channels (331); the second support (34) has a fifth liquid channel, and the ends of the two second liquid channels (311) away from the liquid inlet (61) are connected through the fifth liquid channel.

6. The dual-shutter UV curing lamp with air cooling and liquid cooling according to claim 5, characterized in that: Each shutter (31) is connected to a rotating support rod (35) at both ends. The rotating support rods (35) at both ends are rotatably disposed in the first support seat (33) and the second support seat (34), respectively. The second liquid channel (311) extends into the rotating support rods (35) at both ends. The rotating support rods (35) at both ends are respectively provided with connecting holes (351) that communicate with the fourth liquid channel (331) and the fifth liquid channel.

7. The dual shuttered UV curing lamp with air and liquid cooling according to claim 6, characterized in that: The drive transmission assembly (32) includes a rotary cylinder (321) and a first gear (322) connected to the output end of the rotary cylinder (321). Two rotating support rods (35) near the liquid inlet (61) are each connected to a second gear (323). The two second gears (323) mesh with each other, and the first gear (322) meshes with one of the second gears (323).

8. The dual-shutter UV curing lamp with air cooling and liquid cooling according to claim 4, characterized in that: Both ends of the UV lamp tube (2) are respectively set in the first support seat (33) and the second support seat (34) by support blocks (20).

9. The dual shuttered UV curing lamp with air and liquid cooling according to claim 1, characterized in that: The liquid cooling plate (4) has multiple through holes (43) in the middle.

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