An inlet light shield mechanism and curing cabinet

Abstract

The application relates to the field of light curing equipment, in particular to an entrance light shielding mechanism and a curing box. The entrance light shielding mechanism is used for blocking the outward diffusion of light in the curing box from a sample entrance. The top surface of the curing box is a sample inlet surface. The sample entrance is arranged in the middle of the sample inlet surface. An intermediate body to be cured passes through the sample entrance and is partially arranged in the curing box. The entrance light shielding mechanism is arranged on both sides of the sample entrance and comprises clamps and a driving assembly. The driving assembly drives the two clamps to clamp the intermediate body. The two clamps are respectively used for shielding the sample entrances on both sides of the intermediate body. The surface of the clamp close to the intermediate body is a clamping surface, and the surface of the clamping surface is constructed by a flexible material. The intermediate body partially entering the curing box hinders the complete closing of the two clamps, so that the clamps clamp the intermediate body when being closed and are in flexible contact with the intermediate body. The intermediate body can be prevented from being damaged, and the gap formed when the two clamps are difficult to close can be reduced, so that the light shielding effect is optimized.

Description

Technical Field

[0001] This utility model relates to the field of light curing equipment, and in particular to an entrance light-shielding mechanism and a curing chamber. Background Technology

[0002] During the photocuring process for coatings on guidewires and catheters, a fixture carries the device into a curing chamber for photocuring. However, ultraviolet (UV) radiation can easily diffuse from the entrance of the curing chamber outside the equipment, posing a safety hazard to personnel. To suppress UV diffusion, the curing mechanism is typically integrated into a large, automated device. Both the curing mechanism and the robotic arm carrying the semi-finished product are housed within the casing. Since both pre- and post-curing processes occur within the casing, the curing mechanism does not require strict light shielding. The small amount of UV radiation that diffuses is significantly weakened after traveling a long distance, and the casing further isolates the device, thus mitigating the safety hazard.

[0003] However, large-scale automated equipment has stringent site requirements and high costs. Operator intervention during production is difficult, resulting in poor fault tolerance; any structural failure necessitates production shutdown for repair. Therefore, in some scenarios, separate small curing equipment is still required for curing operations. Thus, it is necessary to reduce UV diffusion at the equipment entrance. However, due to the typically short curing time, to improve production efficiency, multiple semi-finished products to be cured are usually carried into the equipment by a robotic arm, with only the portion requiring curing placed inside. In this case, the equipment door is difficult to close, leading to significant UV diffusion outside the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an entrance light-blocking mechanism and a curing box with good light-blocking effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An entrance light-blocking mechanism is provided to block light from diffusing outward from the sample entrance of a curing chamber. An intermediate to be cured passes through the sample entrance and is partially built into the curing chamber. The entrance light-blocking mechanism is disposed on both sides of the sample entrance and includes clamping plates and a driving assembly. The driving assembly drives the two clamping plates to clamp the intermediate in the center. The two clamping plates are respectively used to block the sample entrance on both sides of the intermediate. The surface of the clamping plates near the intermediate is the clamping surface, and the surface of the clamping surface is constructed of a flexible material.

[0006] Optionally, the clamp is integrally constructed with the flexible material.

[0007] Optionally, the clamping plate includes a rigid structural plate, and the surface of the structural plate near the intermediate body is coated with a film layer, the film layer being constructed of a flexible material.

[0008] Optionally, the flexible material is polytetrafluoroethylene.

[0009] Optionally, the top surface of the curing chamber is the sample inlet surface, and the sample inlet is located in the middle of the sample inlet surface. The driving assembly includes two synchronously operating power components. Each power component has a fixed end and a movable end. The fixed end is connected to the sample inlet surface, and the movable end is connected to the side of either clamp away from the other clamp. The power components can be controllably extended or retracted, causing the two clamps to move closer or further away from each other synchronously. When both clamps move to the position where the distance between them and the other clamp is the greatest, both clamps cover part of the sample inlet.

[0010] Optionally, the inlet light-blocking mechanism further includes a transmission component, which includes a support portion and a pushing portion connected to each other. The pushing portion is connected to the side of the movable end away from the fixed end and translates as the power component extends or retracts. The support portion is connected to the side of the pushing portion away from the movable end and is also connected to the end of the pushing portion near the sample inlet. The clamp is connected to the side of the support portion away from the sample injection surface and is supported by the support portion.

[0011] Optionally, the clamp is plate-shaped, with a mounting groove formed at the position corresponding to the transmission member. The support portion of the transmission member is embedded in the mounting groove and parallel to the injection surface. The side of the clamp near the injection surface is flush with the side of the support portion near the injection surface.

[0012] This utility model also provides a curing box, including a shell, a light source assembly and the aforementioned entrance light-shielding mechanism. The sample entrance is located at the top of the shell and is used to connect the inside and outside of the shell. The intermediate body hangs vertically through the sample entrance, and the top of the intermediate body is located outside the shell. The light source assembly is installed on the inner wall of the shell and includes at least one mercury lamp arranged in a vertical direction. The entrance light-shielding mechanism is installed on the top outer wall of the shell.

[0013] Optionally, the sample inlet is constructed as an elongated strip extending along a first direction, a plurality of intermediate bodies are arranged along the first direction, a plurality of light source groups are arranged along the first direction, and the length of the clamp in the first direction is greater than or equal to the sample inlet, for controllably covering part of the sample inlet from above.

[0014] Optionally, the curing chamber further includes two sets of partition mechanisms. The two sets of light source groups are symmetrically arranged relative to the sample inlet. The partition mechanisms are isolated between the light source groups and the sample inlet to block the light emitted by the light source groups from being transmitted to the corresponding position of the sample inlet. The partition mechanisms can be opened or closed controllably.

[0015] According to a first aspect of this invention, since the intermediate body only partially enters the curing chamber, it hinders the complete closure between the two clamping plates. By clamping the intermediate body at the sample inlet position when the clamping plates are closed, light leakage is reduced. Because the side surfaces of the two clamping plates near the other clamping plate are flexible, the contact between the clamping plates and the intermediate body when clamping is a flexible contact. This prevents damage to the intermediate body under high pressure and reduces the gaps formed when the two clamping plates are difficult to close, thus optimizing the light-blocking effect.

[0016] Furthermore, the clamping plate as a whole has good flexibility, which can further reduce the pressure of the clamping plate on the corresponding position of the intermediate body, thereby reducing the damage to the intermediate body.

[0017] Furthermore, the use of rigid structural plates to support the structure helps prevent deformation of the clamps, thereby preventing the clamps from sagging and contacting the injection surface, and preventing friction between the clamps and the injection surface from hindering the smooth and stable movement of the clamps.

[0018] Furthermore, PTFE's high flexibility, extremely low coefficient of friction, and unique non-stick properties help reduce intermediate damage and ensure stable sliding with the drive assembly. PTFE also exhibits high stability, is applicable over a wide temperature range, and is chemically stable and resistant to deformation, thus contributing to extended clamping plate lifespan.

[0019] Furthermore, by ensuring that the clamp still partially covers the injection inlet when it is open, preventing the sample from coming into contact with the injection inlet and damaging the pre-dried coating on the surface of the intermediate, the risk of intermediate damage is reduced.

[0020] Furthermore, by setting up a transmission component support clamp, a gap is ensured between the clamp and the sample injection surface, thereby avoiding movement jamming caused by friction.

[0021] Furthermore, by making the bottom surface of the clamp plate flush with the bottom surface of the transmission component, the risk between the sample injection surface and the clamp plate is reduced, which helps to improve the light-blocking effect of the clamp plate.

[0022] According to a second aspect of this utility model, the intermediate body in a hanging state enters the curing chamber from the top of the curing chamber in a vertical direction. After the light is blocked from diffusing out of the curing chamber by a light-shielding mechanism, the surface of the intermediate body is irradiated by a number of mercury lamps arranged in a vertical direction, which helps to ensure that the intermediate body is uniformly cured in the axial direction, thereby optimizing the curing effect.

[0023] Furthermore, multiple intermediates arranged along the first direction are simultaneously introduced into the curing chamber, and multiple light source groups arranged along the first direction are set up to ensure the uniformity of light intensity received by each intermediate, thereby achieving simultaneous curing of multiple intermediates with high stability and uniformity, thus improving the production efficiency of the curing chamber.

[0024] Furthermore, the intermediate is photocured by light source groups positioned in two opposing directions, ensuring uniform curing of the intermediate along the radial direction. A partition mechanism separates the sample entrance from the light source groups, facilitating the blocking of light emitted from the light source groups when the entrance light-shielding mechanism is opened, thereby improving light-shielding efficiency. The side of the curing chamber not corresponding to the partition mechanism also includes a maintenance surface with a maintenance door. A light-transmitting insulating element, preferably glass, is also provided between the partition mechanism and the light source.

[0025] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the curing box shown in Embodiment 1 of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional structural schematic diagram of the entrance light-blocking mechanism shown in Embodiment 1 of this utility model.

[0027] Legend: 1-Shell, 11-Working box, 111-Sample inlet, 112-Sample inlet, 113-Heat dissipation, 12-Light box, 121-Electrical interface, 2-Inlet light shielding mechanism, 21-Clamping plate, 211-Mounting slot, 22-Drive assembly, 221-Power component, 222-Fixed end, 223-Moving end, 23-Transmission component, 231-Support part, 232-Pushing part. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] The entrance light-shielding mechanism 2 protected by this utility model is used to block light from diffusing outward from the sample inlet 112 inside the curing chamber. The top surface of the curing chamber is the sample inlet surface 111, and the sample inlet 112 is located in the middle of the sample inlet surface 111. The intermediate body to be cured passes through the sample inlet 112 and is partially built into the curing chamber. The entrance light-shielding mechanism 2 is located on both sides of the sample inlet 112 and includes clamping plates 21 and a driving assembly 22. The driving assembly 22 drives the two clamping plates 21 to clamp the intermediate body in the center. The two clamping plates 21 are used to block the sample inlets 112 on both sides of the intermediate body. The surface of the clamping plate 21 near the intermediate body is the clamping surface, and the surface of the clamping surface is constructed of a flexible material.

[0033] Because the intermediate material only partially enters the curing chamber, it hinders the complete closure between the two clamping plates 21. By clamping the intermediate material at the position corresponding to the sample inlet 112 when the clamping plates 21 are closed, light leakage is reduced. Since the side surfaces of the two clamping plates 21 near the other clamping plate 21 are flexible, the contact between the two clamping plates 21 and the intermediate material when clamping is a flexible contact. This prevents damage to the intermediate material under high pressure and reduces the gaps formed when the two clamping plates 21 are in contact with the intermediate material, thus optimizing the light-blocking effect.

[0034] Please refer to the following examples for details.

[0035] Example 1: Please see Figure 1 The curing chamber shown in a preferred embodiment of this application includes a housing 1, a light source assembly, a partition door mechanism, and an entrance light-shielding mechanism 2. The housing 1 includes a working chamber 11 and multiple light boxes 12 connected to both sides of the working chamber 11, with the working chamber 11 and the light boxes 12 separated by a light-transmitting glass plate disposed on the working chamber 11. The working chamber 11 has a rectangular overall structure, extending along a horizontal second direction, with two light boxes 12 connected to each end along the second direction. The working chamber 11 includes a vertical maintenance surface and a heat dissipation surface 113 parallel to the second direction, which are arranged opposite to each other. A maintenance door is provided on the maintenance surface to connect the inside and outside of the working chamber 11, and the maintenance door can be opened or closed controllably, facilitating easy access for maintenance without disassembling the curing chamber components. Each light box 12 has an electrical interface 121 formed on its outer wall, facing each other along a first direction, for electrical connection to the mercury lamp. The first direction extends horizontally and is perpendicular to the second direction. Multiple electrical interfaces 121 are arranged vertically, and multiple mercury lamps are arranged vertically to form a light source group. Each lamp box 12 contains a light source group, and each light source group is opposite to the other in pairs along a second direction. A partition door mechanism is provided in the working box 11 adjacent to each lamp box 12. The partition door mechanism corresponds to each lamp box 12 and can be opened or closed controllably. When the partition door mechanism is open, the ultraviolet rays emitted by each light source group diffuse from the lamp box 12 into the working box 11; when the partition door mechanism is closed, the ultraviolet rays emitted by each light source group are blocked and cannot diffuse into the working box 11. The top of the working box 11 has a horizontal sample inlet surface 111, and a rectangular sample inlet 112 extending along a first direction is formed in the middle of the sample inlet surface 111, so that the vertical distance between the sample inlet 112 and each lamp box 12 is equal, and the two ends of the sample inlet 112 along the first direction are not connected to the edge of the sample inlet surface 111. The inlet light-shielding mechanism 2 is installed on the sample inlet surface 111 to block ultraviolet rays that diffuse outward from the sample inlet 112.

[0036] Please see Figure 1 , Figure 2 and Figure 3 The entrance light-blocking mechanism 2 includes a clamping plate 21, a drive assembly 22, and a transmission component 23.

[0037] The clamping plate 21 is generally rectangular in shape, with its length in the first direction slightly greater than the length of the sample inlet 112, and its width in the second direction slightly greater than half the width of the sample inlet 112. A mounting groove 211 is formed in the middle of the clamping plate 21 in the first direction. The mounting groove 211 extends from the side of the clamping plate 21 to its middle along the second direction. The mounting groove 211 has an interconnected through-part and an embedded part. The through-part communicates with the side of the clamping plate 21 and completely penetrates the clamping plate 21 in the vertical direction. The embedded part extends from the inner wall of the through-part away from the side of the clamping plate 21 along the second direction, communicating with the surface of the clamping plate 21 near the sample inlet surface 111, and its height in the vertical direction is less than the height of the clamping plate 21, making the surface of the mounting groove 211 near the sample inlet surface 111 stepped. The clamping plate 21 includes a structural plate and a membrane layer. The structural plate is a rigid structure constructed of metal. A thick polytetrafluoroethylene (PTFE) film layer is coated on the surface of the structural plate, covering the surface of the structural plate and possessing good flexibility, smoothness, and stability.

[0038] The drive assembly 22 includes two power components 221 arranged along a second direction and corresponding to the middle of the sample inlet 112. Each power component 221 includes a fixed end 222 and a movable end 223. The movable end 223 can controllably move closer to or further away from the fixed end 222, allowing the power component 221 to controllably extend or retract. In this embodiment, the power component 221 is a cylinder, and the air path is regulated by dual electrically controlled solenoid valves. The dual electrically controlled solenoid valves of the two power components 221 are electrically connected, thereby enabling the two power components 221 to operate synchronously. The two power components 221 are arranged symmetrically with respect to the sample inlet 112.

[0039] The transmission component 23 has a right-angled overall structure and includes a support portion 231 and a pushing portion 232 connected to each other. The pushing portion 232 is arranged vertically, and one side surface of it is fixedly connected to the surface of the movable end 223 of the power component 221 away from the fixed end 222, and is separate from the sample injection surface 111. The support portion 231 is arranged horizontally, connected to the surface of the pushing portion 232 away from the power component 221, and connected to the end of the pushing portion 232 near the sample injection surface 111. In this embodiment, the two side surfaces of the support portion 231 and the pushing portion 232 of the transmission component 23 in the first direction are flush with the movable end 223 of the power component 221. The width of the through portion of the mounting groove 211 in the second direction is slightly larger than the total width of the pushing portion 232 of the transmission component 23 and the movable end 223 of the power component 221, so that the pushing portion 232 of the transmission component 23 and the movable end 223 of the power component 221 are completely embedded in the through portion of the mounting groove 211. The mounting groove 211 is fitted to the support part 231 of the transmission member 23, and the support part 231 of the transmission member 23 is embedded in the mounting groove 211 and fixedly connected by bolts that vertically penetrate the clamping plate and are inserted into the support part 231 of the transmission member 23. At this time, the clamping plate 21 supports the transmission member 23, and the surface of the clamping plate 21 near the injection surface 111 is flush with the surface of the support part 231 of the transmission member 23 near the injection surface 111.

[0040] When the power component 221 is in the retracted state, the clamping plate 21 partially covers the sample inlet 112, and the edge of the clamping plate 21 away from the power component 221 is adjacent to the edge of the sample inlet 112, which helps to protect the intermediate body entering the curing chamber. When the power component 221 is in the extended state, the edge of the clamping plate 21 away from the power component 221 contacts another clamping plate 21, thereby completely covering the sample inlet 112.

[0041] In this embodiment, the intermediate is a guide wire precursor, obtained by coating a hydrophilic coating on the surface of a long, filamentous metal substrate and then pre-drying it. The adhesion between the hydrophilic film on its surface and the metal substrate is relatively weak. In this embodiment, the intermediate has a proximal end that is not covered by the hydrophilic film and the other part that is covered by the hydrophilic film, and its proximal end is fixedly connected to the carrier. The carrier carries multiple intermediates arranged along a first direction and naturally hanging down in the vertical direction. When the curing chamber is working, the partition door mechanism is closed and the entrance light-shielding mechanism 2 is opened, so that multiple intermediates enter the curing chamber from the sample entrance 112 under the drive of the carrier. At this time, the position corresponding to the clamping plate 21 on the intermediate is not covered by the hydrophilic film. The drive assembly 22 works, and the two power components 221 are stretched synchronously, so that the two clamping plates 21 are aligned and clamp each intermediate, and the clamping plates 21 are in flexible contact with the intermediate to prevent damage to the intermediate. At the same time, the partition door mechanism is opened, so that the ultraviolet light emitted by the light source group irradiates the surface of each intermediate. After curing is complete, close the partition door mechanism, open the entrance light-blocking mechanism 2, and remove the intermediate body.

[0042] Example 2: The only difference between this embodiment and Embodiment 1 is that the clamping plate 21 in this embodiment is constructed entirely of polytetrafluoroethylene, and the lengths of the mounting groove 211 and the support portion 231 of the transmission component 23 are both larger in the first and second directions to support the structure of the clamping plate 21.

[0043] Example 3: The only difference between this embodiment and Embodiment 1 is that when the power component 221 in this embodiment is in the retracted state, the edge of the clamping plate 21 near the other clamping plate 21 is flush with the edge of the sample inlet 112.

[0044] The beneficial effects of this invention are that the clamp 21 blocks most of the light emanating from the sample inlet 112, reducing safety hazards. Because the surface of the clamp 21 is in flexible contact with the intermediate, the integrity of the intermediate is protected, helping to ensure product quality. Furthermore, the installation of a maintenance door in the curing chamber allows maintenance personnel to perform repairs without disassembling the chamber, reducing equipment maintenance time and increasing production capacity.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the 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. An entrance light-blocking mechanism, characterized in that, The light-shielding mechanism (2) is used to block the light inside the curing chamber from spreading outward from the sample inlet (112). The intermediate to be cured passes through the sample inlet (112) and is partially built into the curing chamber. The inlet light-shielding mechanism (2) is set on both sides of the sample inlet (112) and includes clamping plates (21) and driving components (22). The driving components (22) drive the two clamping plates (21) to clamp the intermediate in the center. The two clamping plates (21) are used to block the sample inlets (112) on both sides of the intermediate. The surface of the clamping plate (21) near the intermediate is the clamping surface, and the surface of the clamping surface is made of flexible material.

2. The entrance light-blocking mechanism as described in claim 1, characterized in that, The clamp (21) is constructed integrally with the flexible material.

3. The entrance light-blocking mechanism as described in claim 1, characterized in that, The clamp (21) includes a rigid structural plate, and the surface of the structural plate near the intermediate body is coated with a film layer, the film layer being constructed of a flexible material.

4. The entrance light-blocking mechanism as described in claim 2 or 3, characterized in that, The flexible material is polytetrafluoroethylene.

5. The entrance light-blocking mechanism as described in claim 1, characterized in that, The top surface of the curing chamber is the sample inlet surface (111), and the sample inlet (112) is located in the middle of the sample inlet surface (111). The driving assembly (22) includes two synchronously operating power components (221). The power component (221) has a fixed end (222) and a movable end (223). The fixed end (222) is connected to the sample inlet surface (111), and the movable end (223) is connected to the side of one of the clamps (21) away from the other clamp (21). The power component (221) can be extended or retracted in a controllable manner, driving the two clamps (21) to move closer or further away from each other synchronously. When both clamps (21) move to the position where the distance between them and the other clamp (21) is the farthest, both clamps (21) cover part of the sample inlet (112).

6. The entrance light-blocking mechanism as described in claim 5, characterized in that, It also includes a transmission component (23), which includes a support portion (231) and a push portion (232) connected to each other. The push portion (232) is connected to the side of the movable end (223) away from the fixed end (222) and translates as the power component (221) extends or contracts. The support portion (231) is connected to the side of the push portion (232) away from the movable end (223) and is connected to the end of the push portion (232) near the sample inlet (112). The clamp (21) is connected to the side of the support portion (231) away from the sample injection surface (111) and is supported by the support portion (231).

7. The entrance light-blocking mechanism as described in claim 6, characterized in that, The clamping plate (21) is plate-shaped and has a mounting groove (211) formed at the position corresponding to the transmission member (23). The support part (231) of the transmission member (23) is embedded in the mounting groove (211) and parallel to the injection surface (111). The side of the clamping plate (21) near the injection surface (111) is flush with the side of the support part (231) near the injection surface (111).

8. A curing box, characterized in that, The device includes a housing (1), a light source assembly, and an entrance light-shielding mechanism (2) as described in any one of claims 1 to 7. The sample entrance (112) is located at the top of the housing (1) and is used to connect the inside and outside of the housing (1). The intermediate body hangs vertically through the sample entrance (112) and the top of the intermediate body is located outside the housing (1). The light source assembly is installed on the inner wall of the housing (1) and includes at least one mercury lamp arranged in a vertical direction. The entrance light-shielding mechanism (2) is installed on the top outer wall of the housing (1).

9. The curing chamber as described in claim 8, characterized in that, The sample inlet (112) is constructed as a long strip extending along the first direction, a plurality of intermediate bodies are arranged along the first direction, a plurality of light source groups are arranged along the first direction, and the length of the clamp (21) in the first direction is greater than or equal to the sample inlet (112), for controllably covering part of the sample inlet (112) from above.

10. The curing chamber as described in claim 8, characterized in that, It also includes a partition mechanism. The two sets of light source groups are symmetrically arranged relative to the sample inlet (112). The two sets of partition mechanisms are respectively isolated between the two sets of light source groups and the sample inlet (112) to block the light emitted by the light source groups from being transmitted to the corresponding position of the sample inlet (112). The partition mechanism can be opened or closed controllably. The side of the curing box that does not correspond to the partition mechanism also includes a maintenance surface. A maintenance door is formed on the maintenance surface. A light-transmitting isolation component is also provided between the partition mechanism and the light source. The light-transmitting isolation component is glass.

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