A novel UV accelerated aging test chamber for weather resistance testing of materials

Abstract

This invention relates to the field of new material testing technology, specifically disclosing a UV accelerated aging test chamber for weather resistance testing of new materials. The chamber includes a main body and a feeding tank. One end of the feeding tank has a feeding port. A bottom chamber is located at the bottom of the inner wall of the test chamber, and a base is located at the bottom of the inner wall of the bottom chamber. A first telescopic rod connects the base to the inner wall of the bottom chamber. The top of the base supports the sample, and a UV lamp is located above the base. A liquid storage tank is located at the top of the feeding tank, and the cleaning solution in the storage tank is used to clean both sides of the sample. A feeding plate is located on the outside of the feeding tank. This invention utilizes a sealed cleaning solution supply system with a rotating roller and sponge composite structure. This achieves automatic scraping and cleaning of the sample, and the liquid supply is precisely adjusted through the opening and closing of the connecting hole, effectively preventing the cleaning solution from evaporating and wasting. The double-layer sealing design, combined with a sealing cap and sealing strip, significantly improves the preservation effect of volatile solvents and reduces the maintenance frequency of the test chamber.

Description

Technical Field

[0001] This invention relates to the field of new material testing technology, and in particular to an ultraviolet accelerated aging test chamber for testing the weather resistance of new materials. Background Technology

[0002] The UV Accelerated Aging Test Chamber for Weather Resistance Testing of New Materials is a device that simulates ultraviolet radiation (such as UVA-340 or UVB-313 lamps), temperature and humidity changes, and condensation / spraying environments in natural sunlight to accelerate the aging of non-metallic materials (such as plastics, coatings, and rubber). Its core principle is to utilize high-intensity ultraviolet light sources and controlled environmental conditions to reproduce the aging effects of outdoor exposure over months or even years within days or weeks, in order to evaluate the material's weather resistance in terms of fading, chalking, cracking, and strength reduction. This equipment is widely used in materials research and development and quality control, providing data support for improving product durability.

[0003] For example, prior art publication number CN105928864A discloses an invention patent application entitled "Ultraviolet Accelerated Aging Test Chamber." This technology includes a base, frame, cover, lamps, spray pipes, sample rack, control panel, heating element, fan, water tank, and water pump. The frame is positioned above the base, and the cover is mounted on the frame. Several lamp holders are positioned opposite each other on the side walls of the frame, and the lamps are fixed to these lamp holders. The spray pipe is mounted on the frame and has several spray holes. The heating element is located on the bottom surface of the frame, and the sample rack is positioned on top of the frame. The control panel is located inside the frame, and the fan is located below the frame and connected to the heating element via a pipe. The ultraviolet accelerated aging test chamber of this invention includes a sample rack for fixing samples, and the lamps and lamp holders are detachably connected, allowing for lamp replacement. Simultaneously, the cover is removable for convenient sample placement and lamp removal.

[0004] Existing technologies only support simple sample protection and testing when conducting ultraviolet irradiation tests on samples. They cannot facilitate feeding or mid-process detection, and it is inconvenient to flip the sample during the test, resulting in the sample not being able to accurately simulate the real-world usage environment during the test. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] This invention provides a novel ultraviolet accelerated aging test chamber for weather resistance testing of materials, which solves the problems of inconvenient material feeding and mid-process testing. The specific solution is as follows:

[0007] A novel ultraviolet accelerated aging test chamber for weather resistance testing of materials includes a chamber body and a feeding box. The feeding box has a feeding port at one end. A bottom chamber is located at the bottom of the inner wall of the test chamber, and a base is located at the bottom of the inner wall of the bottom chamber. A first telescopic rod connects the base to the inner wall of the bottom chamber. The top of the base supports the sample, and an ultraviolet lamp is located above the base. A liquid storage tank is located at the top of the feeding box, and cleaning solution in the storage tank is used to clean both sides of the sample. A feeding plate is located outside the feeding box. The sample entering through the feeding port is transported by the feeding plate to the base inside the chamber. A tilting assembly is located below the feeding box for tilting the sample on the base. The samples are flipped over; the sealed cleaning fluid supply system, employing a rotating roller and sponge composite structure, achieves automatic scraping and cleaning of the samples, while the liquid supply is precisely adjusted through the opening and closing of the connecting holes, effectively preventing the evaporation and waste of cleaning fluid. The double-layer sealing design, combined with the sealing cap and sealing strip, significantly improves the preservation effect of volatile solvents and reduces the maintenance frequency of the test chamber; the movable base chamber enables seamless switching between testing and detection functions, integrating ultraviolet aging, mechanical performance testing, and color difference detection in a closed environment, ensuring the consistency of the testing environment and avoiding secondary contamination caused by manual sample transfer, greatly improving detection efficiency and result accuracy.

[0008] Preferably, the top of the liquid storage tank is provided with a sealing cover, one end of which is hinged to the inner wall of the liquid storage tank, and a sealing strip is installed at the position where the sealing cover connects with the liquid storage tank.

[0009] Preferably, the liquid storage tank is equipped with a rotating roller inside, and the bottom of the inner wall of the liquid storage tank is provided with a rotating groove that matches the rotating roller. The rotating roller is rotatably installed inside the rotating groove, and the outer wall of the rotating roller is in sealed contact with the inner wall of the rotating groove. A liquid discharge hole is provided at the bottom of the rotating groove, and a receiving groove is provided at the bottom of the liquid discharge hole. A sponge is installed inside the receiving groove, and one end of the sponge extends into the inside of the feed port and contacts one side of the sample. A connecting hole is also provided on one side of the rotating roller.

[0010] Preferably, a rotating frame is fixedly connected to the bottom of the feeding plate, a rotating shaft is fixedly connected to the bottom of the rotating frame, a rotating seat is fixedly connected to the outer wall of the feeding box, the rotating shaft is rotatably connected to the rotating seat, a first motor is connected to one end of the rotating seat, the output shaft of the first motor is connected to one end of the rotating shaft, and a first negative pressure hole is also provided on the side of the feeding plate near the sample. When the first negative pressure hole generates negative pressure, it can adsorb the sample.

[0011] Preferably, the middle area inside the chamber is the test chamber, the left side of the test chamber is the detection chamber, and the right side of the test chamber is the feeding chamber.

[0012] Preferably, the inside of the detection chamber is equipped with a mechanical testing device and a colorimeter. Both the mechanical testing device and the colorimeter are fixedly installed on the inner wall of the detection chamber by a bracket. The bottom box is slidably installed inside the chamber, and a limit rod is connected inside the chamber. The bottom box is slidably connected to the limit rod.

[0013] Preferably, the top of the base is connected to several card holders, and in this embodiment, three samples of the same size can be placed on the base. A second negative pressure hole is opened in the middle of the card holder, and a second connecting cavity is provided at the bottom of the second negative pressure hole. A pump body is fixedly installed on one side of the base, and the negative pressure end of the pump body is connected to one end of the second connecting cavity. Through the multi-dimensional negative pressure adsorption system, a stable adsorption mechanism is established in the feeding, positioning, and detection stages by means of a graded negative pressure hole design. The gas path switching device controlled by the electromagnetic valve is linked with the rotating frame to realize the intelligent switching of adsorption force during sample transfer, ensuring the sample positioning accuracy and the stability of the test process.

[0014] Preferably, a limiting block is provided on the side of the feeding plate near the sample, so that when the sample slides down the feeding plate, it can fall exactly into the area between two adjacent limiting blocks.

[0015] Preferably, a movable plate is provided on the left side of the base box, and the top of the movable plate is connected to the top of the inner wall of the test chamber through a second telescopic rod. The second telescopic rod can control the raising and lowering of the movable plate. A baffle is connected to the right end of the base, and a sealed space is formed by the left side of the base, the movable plate, the baffle and the test chamber.

[0016] Preferably, the flipping assembly includes a third telescopic rod, a hinge block connected to the bottom of the third telescopic rod, a fourth telescopic rod provided on one side of the hinge block, one end of the fourth telescopic rod hinged to the hinge block, a second motor fixedly installed on the outer wall of the hinge block, the output end of the second motor connected to the hinge shaft of the fourth telescopic rod, a fixing block connected to the other end of the fourth telescopic rod, an adsorption plate connected to one end of the fixing block, a third negative pressure hole opened at one end of the adsorption plate, a pipe connected to the connecting end of the third negative pressure hole, and a negative pressure pump connected to the other end of the pipe, the negative pressure pump being fixedly installed on the feeding box.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] 1. This invention utilizes a sealed cleaning fluid supply system with a rotating roller and sponge composite structure, which achieves automatic scraping and cleaning of samples. The supply volume is precisely adjusted by controlling the opening and closing of the connecting holes, effectively preventing the cleaning fluid from evaporating and being wasted. The double-layer sealing design, combined with the sealing cap and sealing strip, significantly improves the preservation effect of volatile solvents and reduces the maintenance frequency of the test chamber.

[0019] 2. This invention achieves seamless switching between testing and detection functions through a movable base box, integrating ultraviolet aging, mechanical performance testing, and color difference detection in a closed environment. This ensures the consistency of the testing environment and avoids secondary contamination caused by manual sample transfer, significantly improving detection efficiency and result accuracy.

[0020] 3. This invention establishes a stable adsorption mechanism in the feeding, positioning, and detection stages through a multi-dimensional negative pressure adsorption system with a graded negative pressure orifice design. The gas path switching device controlled by an electromagnetic valve is linked with the rotating frame to realize intelligent switching of adsorption force during sample transfer, ensuring sample positioning accuracy and experimental stability.

[0021] 4. The adjustable ultraviolet irradiation lamp of this invention adopts a telescopic structure, which enables independent adjustment of the lamp source height and the sample support stage position. This allows for precise control of irradiation intensity and adaptability to the testing requirements of samples of different specifications. Combined with a limiting slide rail design, it ensures the accuracy of sample movement trajectory and improves test repeatability.

[0022] 5. The flipping component of this invention uses a multi-axis linkage robotic arm in conjunction with a negative pressure adsorption device to achieve automated flipping test of the front and back sides of the sample. The unique telescopic rod-hinged block transmission mechanism completes the flipping of the sample within a limited space, thereby facilitating multi-angle repeated aging tests and comprehensively evaluating material performance.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a perspective view of the entire invention;

[0026] Figure 2 This is a three-dimensional sectional view of the present invention;

[0027] Figure 3 This is a three-dimensional sectional view of the present invention;

[0028] Figure 4 This is a structural diagram of the feed box of the present invention;

[0029] Figure 5This is a perspective sectional view of the invention from another side;

[0030] Figure 6 This is a perspective view of the feed plate of the present invention;

[0031] Figure 7 This is a perspective view of the base of the present invention;

[0032] Figure 8 This is a bottom view of the base of the present invention;

[0033] Figure 9 This is a perspective view of the base box of the present invention;

[0034] Figure 10 This is a perspective view of the flipping component of the present invention.

[0035] The accompanying figure is labeled as follows:

[0036] 1. Box body; 2. Feeding box; 3. Feeding port; 4. Sample; 5. Liquid storage tank; 6. Sealing cover; 7. Rotating roller; 8. Liquid discharge hole; 9. Sponge; 10. Connecting hole; 11. Test chamber; 12. Detection chamber; 13. Feeding chamber; 14. Base box; 15. Base; 16. First telescopic rod; 17. Ultraviolet lamp; 18. Second telescopic rod; 19. Mechanical testing device; 20. Support; 21. Colorimeter; 22. Feed trough; 23. Feeding plate; 24. Rotating frame; 2 5. Rotating shaft; 26. First motor; 27. Limiting block; 28. First negative pressure hole; 29. ​​Card seat; 31. Second connecting cavity; 32. Pump body; 33. Negative pressure end; 34. Second negative pressure end; 35. Negative pressure pipe; 36. Solenoid valve; 37. Movable plate; 38. Fifth telescopic rod; 39. Baffle; 40. Third telescopic rod; 41. Hinge block; 42. Fourth telescopic rod; 43. Second motor; 44. Fixing block; 45. Adsorption plate; 46. Negative pressure pump; 47. Pipeline. Detailed Implementation

[0037] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0038] Example 1: As Figure 1 As shown, this embodiment provides a new material weather resistance test chamber for ultraviolet accelerated aging, including a chamber body 1, which is placed on the ground. A feeding box 2 is provided at one end of the chamber body 1, and a feeding port 3 is provided at one end of the feeding box 2. The feeding port 3 is used to allow the sample 4 to pass through, so that the sample enters the chamber body 1.

[0039] like Figure 2 , Figure 3As shown, a liquid storage tank 5 is provided on the top of the feeding box 2. The liquid storage tank 5 is filled with cleaning liquid, which may be isopropanol. In order to slow down the evaporation rate of the cleaning liquid, a sealing cover 6 is provided on the top of the liquid storage tank 5. One end of the sealing cover 6 is hinged to the inner wall of the liquid storage tank 5. In order to further increase the sealing performance, a sealing strip can be installed at the connection between the sealing cover 6 and the liquid storage tank 5, thereby further slowing down the evaporation rate of the cleaning liquid.

[0040] like Figure 3 , Figure 4 As shown, a rotating roller 7 is installed inside the liquid storage tank 5. A rotating groove (not shown) matching the rotating roller 7 is formed at the bottom of the inner wall of the liquid storage tank 5. The rotating roller 7 is rotatably mounted inside the rotating groove, and its outer wall is in sealed contact with the inner wall of the rotating groove. A liquid outlet 8 is formed at the bottom of the rotating groove, and a receiving groove is formed at the bottom of the liquid outlet 8. A sponge 9 is installed inside the receiving groove, with one end of the sponge 9 extending into the feed port 3 and contacting one side of the sample 4. With this design, when the cleaning liquid inside the liquid storage tank 5 enters the receiving groove through the liquid outlet 8, the liquid can wet the sponge 9, and then the sample 4 is cleaned through the sponge 9. The rotating roller 7 is used for scraping and cleaning. A connecting hole 10 is also provided on one side of the rotating roller 7. The two ends of the rotating roller 7 are rotatably connected to the two ends of the feeding box 2. A driving device is installed at one end of the rotating roller 7. The driving device can be a servo motor. When the rotating roller 7 rotates to a certain angle, one end of the connecting hole 10 can communicate with the inside of the liquid storage tank 5, and the other end of the connecting hole 10 can communicate with the inner wall of the liquid outlet 8. The rotating roller 7 can also be rotated to the point where the top of the connecting hole 10 is blocked, so that the cleaning liquid inside the liquid storage tank 5 cannot flow from the connecting hole 10 to the inside of the liquid outlet 8, thereby achieving the effect of controlling the amount of cleaning liquid supplied.

[0041] It should be noted that in the above scheme, the receiving tank and sponge 9 can be distributed on both sides of the feed port 3, so as to clean both sides of the sample 4 at the same time.

[0042] Example 2: The technical solution of this example differs from that of Example 1 in that, as follows... Figure 5 As shown, the central area inside the chamber 1 is the test chamber 11, the left side of the test chamber 11 is the detection chamber 12, and the right side of the test chamber 11 is the feeding chamber 13. The bottom of the inner wall of the test chamber 11 is provided with a base box 14, and the bottom of the inner wall of the base box 14 is provided with a base 15. A first telescopic rod 16 is connected between the base 15 and the inner wall of the base box 14. The top of the base 15 is used to support the sample 4. An ultraviolet lamp 17 is provided above the base 15. A second telescopic rod 18 is connected between the top of the ultraviolet lamp 17 and the top of the inner wall of the test chamber 11. The second telescopic rod 18 is used to move the ultraviolet lamp 17 up and down, so that the distance between the ultraviolet lamp 17 and the sample 4 is adjustable.

[0043] like Figure 5 As shown, the detection chamber 12 is equipped with a mechanical testing device 19 and a colorimeter 21. Both the mechanical testing device 19 and the colorimeter 21 are fixedly installed on the inner wall of the detection chamber 12 by a bracket 20. The bottom box 14 is slidably installed inside the box body 1. A limit rod is connected inside the box body 1, and the bottom box 14 is slidably connected to the limit rod to ensure that the bottom box 14 can move in a straight line and is not prone to deviation from the path during movement. A telescopic device (not shown in the figure) is connected between the bottom box 14 and the inner wall of the box body 1. The telescopic device can be an electric telescopic rod or a hydraulic telescopic rod to move the position of the bottom box 14 left and right. So that after the sample 4 is irradiated by the ultraviolet lamp 17 for a period of time, the sample 4 can be moved to the bottom box 14 to the area below the mechanical testing device 19 and the colorimeter 21, so as to detect the mechanical strength and color difference of the sample 4.

[0044] The mechanical testing device 19 in the above scheme can be:

[0045] 1) Universal testing machine:

[0046] Working principle: Tensile, compressive, and bending loads are applied to the specimen through a loading system (hydraulic or electric drive). The measurement system records force, displacement, and deformation data in real time. The control system adjusts the loading speed and stopping conditions. Finally, the data processing system calculates mechanical parameters (such as yield strength, tensile strength, and elastic modulus). It can typically perform the following tests:

[0047] Tensile test: Fix the two ends of the specimen with a clamp, apply tension until it breaks, record the force-displacement curve, and calculate the tensile strength and elongation;

[0048] Compression test: Pressure is applied to the specimen through upper and lower pressure plates, and the compressive strength and deformation are measured;

[0049] Bending test: Three-point or four-point bending load is applied to measure the bending strength and deflection of the material.

[0050] 2) Tensile testing machine and compression testing machine:

[0051] Working principle:

[0052] Tensile testing machine: Axial tensile force is applied to the specimen through clamps, and the sensor simultaneously records the load and elongation to analyze parameters such as tensile strength and yield strength;

[0053] Compression testing machine: applies compressive load to the specimen and measures the compressive strength and compressive deformation rate. It is suitable for brittle materials such as concrete and metal.

[0054] 3) Impact testing machine

[0055] Working principle: An instantaneous impact load is applied to the sample by a pendulum or falling hammer, and the energy absorbed when the sample breaks (impact toughness) is measured.

[0056] 4) Bending testing machine:

[0057] Working principle: A bending moment is applied to the specimen using a three-point or four-point loading method. The deflection change is recorded by a displacement sensor, and the bending strength (σ=3FL / 2bh2) and fracture toughness are calculated. It is suitable for performance evaluation of materials such as plates and beam structures.

[0058] like Figure 5 , Figure 6 As shown, a feeding trough 22 is provided above the feeding chamber 13, and a feeding plate 23 is provided on the outside of the feeding box 2. A rotating frame 24 is fixedly connected to the bottom of the feeding plate 23, and a rotating shaft 25 is fixedly connected to the bottom of the rotating frame 24. A rotating seat (not shown in the figure) is fixedly connected to the outer wall of the feeding box 2. The rotating shaft 25 is rotatably connected to the rotating seat. A first motor 26 is connected to one end of the rotating seat. The output shaft of the first motor 26 is connected to one end of the rotating shaft 25, so that the first motor 26 can drive the rotating shaft 25 to rotate. A limiting block 27 is provided on the side of the feeding plate 23 near the sample 4. The limiting block 27 ensures that when the sample 4 slides on the feeding plate 23, it can fall exactly in the area between two adjacent limiting blocks 27, thereby ensuring that the sample 4 can be accurately placed on the base 15 later. A first negative pressure hole 28 is also provided on the side of the feeding plate 23 near the sample 4. When the first negative pressure hole 28 generates negative pressure, it can adsorb the sample 4.

[0059] Example 3: The technical solution in this example differs from that in Example 2 in that, as follows... Figure 7 As shown, the top of the base 15 is connected to several card holders 29. In this embodiment, three samples 4 of the same size can be placed on the base 15. The purpose and scientific basis for simultaneously testing multiple identical samples 4 during ultraviolet weathering resistance testing are as follows:

[0060] Ensure data reliability and statistical significance:

[0061] By testing multiple identical samples 4 (usually ≥ 3), errors caused by random factors (such as local defects or installation deviations) in a single sample 4 can be reduced, improving the repeatability and reproducibility of the data. For example, the calculation of the average and standard deviation of color difference (ΔE) or mechanical property retention rate needs to be based on multiple sets of data.

[0062] Verify the consistency of experimental conditions:

[0063] There may be slight fluctuations in temperature, humidity or irradiance inside the UV aging chamber. Testing multiple samples at the same time can verify the uniformity of equipment parameters and avoid result deviations caused by differences in local conditions. For example, the spacing between samples 4 needs to be maintained at 50±3mm to ensure consistent exposure.

[0064] Assessing the dispersion of material properties:

[0065] The performance of materials from the same batch may vary (such as coating thickness and composition distribution). Testing multiple samples can reflect this dispersion and provide a more comprehensive basis for quality control.

[0066] Meets standard and specification requirements:

[0067] International standards (such as ASTM G154 and ISO 4892) typically require at least three parallel samples to ensure that the results meet statistical validity. For example, ASTM D2244 specifies that color changes must be based on the average of multiple ΔE values.

[0068] Improve efficiency and economy:

[0069] Completing multiple sample tests within the same testing cycle can shorten the R&D cycle and reduce the cost per test, making it particularly suitable for batch material evaluation.

[0070] like Figure 7 As shown, a second negative pressure hole 30 is provided in the middle of each card holder 29. A second connecting cavity 31 is provided at the bottom of the second negative pressure hole 30. A pump body 32 is fixedly installed on one side of the base 15. The negative pressure end 33 of the pump body 32 is connected to one end of the second connecting cavity 31. When the pump body 32 is started, a negative pressure is formed inside the second connecting cavity 31 and the second negative pressure hole 30, thereby adsorbing the sample 4 onto the card holder 29 and ensuring that the sample 4 remains stationary during the test and detection process.

[0071] like Figure 2 , Figure 7 As shown, the outer wall of the pump body 32 is also provided with a second negative pressure end 34. One end of the feed box 2 is fixedly connected to a negative pressure pipe 35. The bottom end of the negative pressure pipe 35 is concentric with the second negative pressure end 34, and the two can be separated. The upper half of the negative pressure pipe 35 is a flexible hose, and its top end is connected to the middle of the rotating frame 24. The middle of the rotating frame 24 and the feed plate 23 are both provided with a first connecting cavity (not shown in the figure). The first connecting cavity is connected to the first negative pressure hole 28. A solenoid valve 36 is also installed in the middle of the first connecting cavity. The solenoid valve 36 can control the opening and closing of the first connecting cavity, thereby controlling whether the first negative pressure hole 28 generates negative pressure adsorption force.

[0072] like Figure 8 , Figure 9As shown, a movable plate 37 is provided on the left side of the base box 14. The top of the movable plate 37 is connected to the top of the inner wall of the test chamber 11 through the fifth telescopic rod 38. The fifth telescopic rod 38 can control the raising and lowering of the movable plate 37. A baffle 39 is connected to the right end of the base 15. The left side of the base 15, the movable plate 37, the baffle 39 and the test chamber 11 can form a sealed space, so that the sample 4 can be irradiated with ultraviolet light in the sealed space.

[0073] like Figure 10 As shown, a tilting assembly is provided below the feeding box 2. The tilting assembly includes a third telescopic rod 40. A hinge block 41 is connected to the bottom of the third telescopic rod 40. A fourth telescopic rod 42 is provided on one side of the hinge block 41. One end of the fourth telescopic rod 42 is hinged to the hinge block 41. A second motor 43 is fixedly installed on the outer wall of the hinge block 41. The output end of the second motor 43 is connected to the hinge shaft of the fourth telescopic rod 42. The other end of the fourth telescopic rod 42 is connected to a fixing block 44. One end of the fixing block 44 is connected to an adsorption plate 45. A third negative pressure hole (not shown in the figure) is opened at one end of the adsorption plate 45. A pipe 47 is connected to the connecting end of the third negative pressure hole. The other end of the pipe 47 is connected to a negative pressure pump 46. The negative pressure pump 46 is fixedly installed on the feeding box 2.

[0074] In the above scheme, the sample 4 on the base 15 can be flipped over by the flipping component and placed on the feeding plate 23. Finally, the sample 4 is placed on the base 15 by rotating the feeding plate 23.

[0075] It should be noted that in the above scheme, when the feeding plate 23 drives the sample 4 to rotate, the cleaning liquid residue on the sample 4 can be quickly evaporated by air.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0077] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0078] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0079] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0080] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0081] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0082] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A novel ultraviolet accelerated aging test chamber for weather resistance testing of materials, comprising a chamber body (1) and a feeding box (2), characterized in that: A feeding port (3) is provided at one end of the feeding box (2). A bottom box (14) is provided at the bottom of the inner wall of the test chamber (11). A base (15) is provided at the bottom of the inner wall of the bottom box (14). A first telescopic rod (16) is connected between the base (15) and the inner wall of the bottom box (14). The top of the base (15) is used to support the sample (4). An ultraviolet lamp (17) is provided above the base (15). A liquid storage tank (5) is provided at the top of the feeding box (2). The cleaning liquid in the liquid storage tank (5) is used to clean the two sides of the sample (4). A feeding plate (23) is provided outside the feeding box (2). The sample (4) entering from the feeding port (3) is transported by the feeding plate (23) to the base (15) inside the box (1). A flipping component is provided below the feeding box (2). The flipping component is used to flip the sample (4) on the base (15). A rotating frame (24) is fixedly connected to the bottom of the feeding plate (23), and a rotating shaft (25) is fixedly connected to the bottom of the rotating frame (24). A rotating seat is fixedly connected to the outer wall of the feeding box (2). The rotating shaft (25) is rotatably connected to the rotating seat. A first motor (26) is connected to one end of the rotating seat. The output shaft of the first motor (26) is connected to one end of the rotating shaft (25). A first negative pressure hole (28) is also provided on the side of the feeding plate (23) close to the sample (4). When the first negative pressure hole (28) generates negative pressure, it can adsorb the sample (4). A limiting block (27) is provided on the side of the feeding plate (23) close to the sample (4). The limiting block (27) ensures that when the sample (4) slides down on the feeding plate (23), it can fall exactly into the area between two adjacent limiting blocks (27). The flipping assembly includes a third telescopic rod (40), a hinge block (41) is connected to the bottom of the third telescopic rod (40), a fourth telescopic rod (42) is provided on one side of the hinge block (41), one end of the fourth telescopic rod (42) is hinged to the hinge block (41), a second motor (43) is fixedly installed on the outer wall of the hinge block (41), the output end of the second motor (43) is connected to the hinge shaft of the fourth telescopic rod (42), the other end of the fourth telescopic rod (42) is connected to a fixing block (44), one end of the fixing block (44) is connected to an adsorption plate (45), one end of the adsorption plate (45) is provided with a third negative pressure hole, the connecting end of the third negative pressure hole is connected to a pipe (47), the other end of the pipe (47) is connected to a negative pressure pump (46), and the negative pressure pump (46) is fixedly installed on the feeding box (2).

2. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 1, characterized in that: The top of the liquid storage tank (5) is provided with a sealing cover (6). One end of the sealing cover (6) is hinged to the inner wall of the liquid storage tank (5) by a hinge. A sealing strip is installed at the position where the sealing cover (6) connects with the liquid storage tank (5).

3. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 1, characterized in that: The liquid storage tank (5) is equipped with a rotating roller (7). The bottom of the inner wall of the liquid storage tank (5) is provided with a rotating groove that matches the rotating roller (7). The rotating roller (7) is rotatably installed inside the rotating groove, and the outer wall of the rotating roller (7) is in sealed contact with the inner wall of the rotating groove. The bottom of the rotating groove is provided with a liquid discharge hole (8). The bottom of the liquid discharge hole (8) is provided with a receiving groove. A sponge (9) is installed inside the receiving groove. One end of the sponge (9) extends to the inside of the feed port (3) and contacts one side of the sample (4). A connecting hole (10) is also provided on one side of the rotating roller (7).

4. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 1, characterized in that: The middle area inside the box (1) is the test chamber (11), the left side of the test chamber (11) is the detection chamber (12), and the right side of the test chamber (11) is the feeding chamber (13).

5. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 4, characterized in that: The inside of the detection chamber (12) is equipped with a mechanical testing device (19) and a colorimeter (21). Both the mechanical testing device (19) and the colorimeter (21) are fixedly installed on the inner wall of the detection chamber (12) by a bracket (20). The bottom box (14) is slidably installed inside the box body (1). A limit rod is connected inside the box body (1), and the bottom box (14) is slidably connected to the limit rod.

6. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 1, characterized in that: The top of the base (15) is connected to several card holders (29). Each card holder (29) has several card holders, which can accommodate three samples (4) of the same size to be placed on the base (15). A second negative pressure hole (30) is opened in the middle of the card holder (29). A second connecting cavity (31) is provided at the bottom of the second negative pressure hole (30). A pump body (32) is fixedly installed on one side of the base (15). The negative pressure end (33) of the pump body (32) is connected to one end of the second connecting cavity (31).

7. The ultraviolet accelerated aging test chamber for weather resistance testing of new materials as described in claim 6, characterized in that: A movable plate (37) is provided on the left side of the base box (14). The top of the movable plate (37) is connected to the top of the inner wall of the test chamber (11) through the fifth telescopic rod (38). The fifth telescopic rod (38) can control the lifting and lowering of the movable plate (37). A baffle (39) is connected to the right end of the base (15). A closed space is formed by the left side of the base (15), the movable plate (37), the baffle (39) and the test chamber (11).

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