Accelerated aging testing machine for film detection

Abstract

The accelerated aging testing machine comprises a box body, a PLC is fixedly installed on the right side of the outer surface of the box body, and an ultraviolet lamp is fixedly installed at the top of an inner cavity of the box body. A servo electric cylinder pushes a moving plate, a hollow rotating rod and a pressing frame to move, so that the pressing frame can synchronously press and fix a plurality of groups of film samples at the top of a supporting disc, and convenience is brought to operation of personnel; in the moving process of a moving plate, air in an air guide cylinder can be compressed through a fixing column, a pressure applying spring and a piston, and compressed air can be conveyed into an air guide cavity through a rotating connector, a hollow rotating rod, an air hole and a rotating sleeve by opening an electromagnetic valve, so that the air pressure in the air guide cavity is increased, and a rubber diaphragm is pushed to expand upwards; therefore, the actual use state can be simulated in the subsequent test period, and the accuracy of the aging test is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of film detection equipment, in particular to an accelerated aging test machine for film detection. BACKGROUND

[0002] Film materials are widely used in packaging, construction, electronics and other industrial fields. In the actual use process, the film materials are often affected by multiple environmental factors such as temperature, humidity and light, which leads to gradual degradation of the material performance and affects the service life and safety. Therefore, an accelerated aging test is usually used to test the durability of the film materials.

[0003] At present, common accelerated aging test machines mainly simulate single or combined environmental conditions and are used to evaluate the performance change of materials in the natural aging process. However, in the actual application scene, many film materials are not only subjected to environmental aging factors but also are in a long-term tensile and tension mechanical stress state. The stress action will significantly affect the microstructure and aging behavior of the materials, leading to obvious differences in the performance attenuation law of the materials under the stress state and the stress-free state. Since the traditional pressure equipment lacks simulation of the actual stress condition, it is difficult to simultaneously realize the tension condition under the actual use state on multiple test samples. This limitation makes the test result often unable to truly reflect the performance of the film materials under the complex use environment, which affects the accuracy of the material life prediction and the equipment replacement cycle judgment. SUMMARY

[0004] The application aims to provide an accelerated aging test machine for film detection, which can simultaneously test multiple groups of film materials and apply corresponding tension to the film materials during the test, thereby improving the test accuracy.

[0005] In order to achieve the above object, the application provides the following technical scheme: a kind of membrane detection is accelerated aging test machine, including box, the right side of the outer surface of the box is fixedly installed with PLC controller, the top of the inner cavity of the box is fixedly installed with ultraviolet lamp, the lower end of the back of the box is fixedly installed with air guide box, the inner cavity of the air guide box is fixedly installed with PTC heater, the bottom of the box is fixedly installed with base, the right end of the inner cavity bottom of the base is fixedly installed with air guide cylinder, the lower end of the left side of the air guide cylinder is fixedly installed with electromagnetic valve, the upper end of the inner cavity of the air guide cylinder is slidably connected with piston, the top of the piston is fixedly installed with vertical rod, the upper end of the vertical rod is slidably connected with fixed column, the bottom of the fixed column and the top of the piston are fixedly installed with pressure spring, the right end of the top of the base is fixedly installed with servo cylinder, the output end of the servo cylinder and the top of the fixed column are fixedly installed with moving plate, the middle end of the top of the base is movably connected with rotating sleeve through bearing, the inner cavity of the rotating sleeve is slidably connected with hollow rotating rod, the left end of the moving plate is movably connected to the lower end of the hollow rotating rod through bearing, the left side of the electromagnetic valve is fixedly installed with swivel joint between the bottom of the hollow rotating rod through pipeline, the top of the hollow rotating rod is fixedly installed with pressure frame, the upper end of the both sides of the hollow rotating rod is provided with air hole, the upper end of the outer surface of the rotating sleeve is fixedly installed with support disc, the periphery of the support disc is provided with air guide cavity, the upper end of the air guide cavity is fixedly installed with rubber diaphragm, the bottom of the air guide cavity and the upper end of the rotating sleeve are fixedly installed with air guide pipe.

[0006] As a preferred scheme, the lower end of the outer surface of the rotating sleeve is fixedly installed with second bevel gear, the upper end of the back of the base is movably connected with rotating shaft through bearing, the front surface of the rotating shaft is fixedly installed with first bevel gear, the first bevel gear is engaged with the second bevel gear, the back of the rotating shaft is fixedly installed with second synchronous wheel, the back of the air guide box is fixedly installed with working motor, the working motor is electrically connected with PLC controller, the output end of the working motor is fixedly installed with driving rod, the middle end of the driving rod is movably connected to the middle end of the back of the air guide box through bearing, the front surface of the driving rod is fixedly installed with air blowing impeller, the surface of the driving rod and located behind the air guide box is fixedly installed with first synchronous wheel, the middle end of the first synchronous wheel and the middle end of the second synchronous wheel are drivingly connected with synchronous belt.

[0007] As a preferred scheme, the back of the air guide box and the upper end of the back of the box are fixedly installed with circulation pipe, the number of the circulation pipe is two.

[0008] As a preferred scheme, the left end of the bottom of the inner cavity of the base is fixedly installed with a water tank, a reflux frame is fixedly installed between the top of the water tank and the left end of the top of the base, a water pump is fixedly installed at the lower left end of the inner cavity of the water tank, the water pump is electrically connected with the PLC controller, and a spraying pipe is fixedly installed between the output end of the water pump and the left side of the inner cavity of the box through a pipeline.

[0009] As a preferred scheme, the inner cavity of the reflux frame is fixedly installed with a grating plate and a PP cotton filter screen from top to bottom.

[0010] As a preferred scheme, the upper end of the air guiding cavity is fixedly installed with a partition plate, the bottom of the rubber diaphragm is in contact with the top of the partition plate, and the surface of the partition plate is provided with a through hole.

[0011] As a preferred scheme, the two ends of the inner cavity of the rotating sleeve are fixedly installed with first rubber rings, the surface of the hollow rotating rod is slidably connected to the surface of the first rubber ring, the two sides of the inner cavity of the rotating sleeve are provided with guide grooves, the upper ends of the two sides of the hollow rotating rod and below the air holes are fixedly connected with guide blocks, and the surface of the guide block is slidably connected to the surface of the guide groove.

[0012] As a preferred scheme, the two ends of the piston are fixedly installed with second rubber rings, the surface of the second rubber ring is slidably connected to the inner cavity of the air guiding cylinder, and the front surface of the air guiding cylinder is fixedly installed with an exhaust valve, and the exhaust valve is electrically connected with the PLC controller.

[0013] As a preferred scheme, the middle end of the inner cavity of the box is fixedly installed with a temperature sensor and an ultraviolet radiation sensor from left to right, the PLC controller is electrically connected with the temperature sensor and the ultraviolet radiation sensor respectively, and the front surface of the box is hingedly connected with a protective door.

[0014] As a preferred scheme, the PLC controller is electrically connected with the servo cylinder, the PTC heater, the ultraviolet lamp and the electromagnetic valve respectively.

[0015] Compared with the prior art, the present application has the following advantages: 1. The servo cylinder pushes the moving plate, hollow rotating rod and pressure frame to move, so that the pressure frame can synchronously press and fix the multiple groups of film samples on the top of the support disc, which brings convenience to the operation of personnel, and in the process of moving the moving plate, the air in the air guide cylinder can be compressed through the fixed column, the pressure spring and the piston, and through the opening of the electromagnetic valve, the compressed air can be transported into the air guide cavity through the rotating joint, the hollow rotating rod, the air hole and the rotating sleeve, so that the air pressure in the air guide cavity rises and pushes the rubber diaphragm to expand upward, so as to exert corresponding tension on the film, so that the actual use state can be simulated during subsequent testing, the accuracy of aging test is improved, and through the operation of the ultraviolet lamp and the PTC heater, the inside of the box body can be irradiated and heated, the light and temperature rising environment is simulated, the film is accelerated to age, so that under the action of the whole cooperation, the test machine can simultaneously test multiple groups of film samples, and the tension suffered by the film in actual use can be effectively simulated during the test, the accuracy and reliability of the test result are improved.

[0016] 2. The working motor is arranged, and under the action of the working motor, the driving rod, the air blowing impeller and the first synchronous wheel can be driven to rotate, under the action of the rotating air blowing impeller, the inside of the box body can be circulated while being effectively heated through the PTC heater, the uniformity of the temperature in different regions of the box body is improved, and in the process of rotating the first synchronous wheel, the second synchronous wheel, the rotating shaft and the first bevel gear can be driven to rotate through the synchronous belt, the first bevel gear can drive the second bevel gear, the hollow rotating rod, the rotating sleeve and the support disc to rotate, so that the multiple groups of films tested on the support disc can be more uniformly heated, lighted and watered during rotation, and the accuracy during comparative test of the multiple groups of films is improved.

[0017] 3. The water tank, water pump and spray pipe are arranged, during the test operation, the water pump can be controlled to operate through the PLC controller, the water in the water tank can be pumped out and sprayed to the surface of the tested film in the box body through the spray pipe, so as to simulate the aging under the conditions of rain washing environment and thermal expansion and cold contraction, and the test effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the present application; Figure 2 It is a back structure schematic view of the present application; Figure 3 It is a front sectional structure schematic view of the present application; Figure 4 It is a support disc bottom structure schematic view of the present application; Figure 5It is a front sectional view structure schematic diagram of the support disc of the application; Figure 6 It is a front sectional view structure schematic diagram of the support disc of the application Figure 5 ; Figure 7 It is a front sectional view structure schematic diagram of the support disc of the application Figure 5 ; Figure 8 It is a front sectional view structure schematic diagram of the guide air cylinder of the application; Figure 9 It is a right sectional view structure schematic diagram of the air cylinder of the application; Figure 10 It is a front sectional view structure schematic diagram of the water tank of the application.

[0019] In the figure: 1, tank body; 2, base; 3, protection door; 4, PLC controller; 5, air cylinder; 6, circulating pipe; 7, working motor; 8, synchronous belt; 9, rotating shaft; 10, first bevel gear; 11, second synchronous wheel; 12, ultraviolet lamp; 13, temperature sensor; 14, ultraviolet radiation sensor; 15, rotating sleeve; 16, support disc; 17, water tank; 18, backflow frame; 19, spraying pipe; 20, guide air cylinder; 21, servo cylinder; 22, moving plate; 23, PTC heater; 24, hollow rotating rod; 25, fixed column; 26, electromagnetic valve; 27, air guide pipe; 28, rotating joint; 29, second bevel gear; 30, rubber diaphragm; 31, pressing frame; 32, air guide cavity; 33, first rubber ring; 34, guide block; 35, guide groove; 36, air hole; 37, partition plate; 38, piston; 39, second rubber ring; 40, vertical rod; 41, pressure spring; 42, driving rod; 43, first synchronous wheel; 44, air blowing impeller; 45, grating plate; 46, PP cotton filter screen; 47, water pump. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0021] Please refer to Figures 1-9This invention provides a technical solution: an accelerated aging tester for membrane testing, comprising a chamber 1, a PLC controller 4 fixedly installed on the right side of the outer surface of the chamber 1, an ultraviolet lamp 12 fixedly installed on the top of the inner cavity of the chamber 1, an air guide box 5 fixedly installed on the lower end of the back of the chamber 1, a PTC heater 23 fixedly installed in the inner cavity of the air guide box 5, a base 2 fixedly installed on the bottom of the chamber 1, an air guide cylinder 20 fixedly installed on the right end of the bottom of the inner cavity of the base 2, a solenoid valve 26 fixedly installed on the lower left end of the air guide cylinder 20, a piston 38 slidably connected to the upper end of the inner cavity of the air guide cylinder 20, a vertical rod 40 fixedly installed on the top of the piston 38, a fixed column 25 slidably connected to the upper end of the vertical rod 40, a pressure spring 41 fixedly installed between the bottom of the fixed column 25 and the top of the piston 38, and a servo motor fixedly installed on the right end of the top of the base 2. A movable plate 22 is fixedly installed between the output end of the electric cylinder 21 and the top of the fixed column 25. A rotating sleeve 15 is movably connected to the middle of the top of the base 2 via a bearing. A hollow rotating rod 24 is slidably connected to the inner cavity of the rotating sleeve 15. The left end of the movable plate 22 is movably connected to the lower end of the hollow rotating rod 24 via a bearing. A rotary joint 28 is fixedly installed between the left side of the solenoid valve 26 and the bottom of the hollow rotating rod 24 via a pipe. A pressure frame 31 is fixedly installed on the top of the hollow rotating rod 24. Air holes 36 are provided on the upper ends of both sides of the hollow rotating rod 24. A support plate 16 is fixedly installed on the upper end of the outer surface of the rotating sleeve 15. Air guide chambers 32 are provided around the support plate 16. A rubber diaphragm 30 is fixedly installed on the upper end of the air guide chamber 32. An air guide pipe 27 is fixedly installed between the bottom of the air guide chamber 32 and the upper end of the rotating sleeve 15.

[0022] When the aging comparison test of the film is needed, the film samples are placed on the top of the support disc 16 respectively, and it is ensured that they cover the rubber diaphragm 30, then the servo cylinder 21 is controlled to extend by the PLC controller 4, the moving plate 22 is pushed to move downwards, the movement of the moving plate 22 drives the hollow rotating rod 24 to move downwards along the inner cavity of the rotating sleeve 15, and drives the fixed column 25 to move downwards along the surface of the vertical rod 40, the hollow rotating rod 24 can drive the pressing frame 31 to move downwards in the process of movement, so that the pressing frame 31 can press the film on the support disc 16 tightly, preventing the film from moving in the subsequent test, thereby completing the fixing work of multiple groups of films, and in the process of moving downwards of the fixed column 25, the compression spring 41 and the piston 38 can move downwards in the air cylinder 20, the air in the air cylinder 20 is compressed at the same time, and the compression spring 41 can be elastically deformed, and when the film fixing is completed, the electromagnetic valve 26 is controlled to open, the compressed air in the air cylinder 20 enters the hollow rotating rod 24 through the electromagnetic valve 26, the pipeline and the rotary joint 28, and then is transported to the air guiding cavity 32 through the air hole 36, the gap between the hollow rotating rod 24 and the rotating sleeve 15 and the air guiding pipe 27, so that the air pressure in the air guiding cavity 32 rises and pushes the rubber diaphragm 30 to expand upwards, so as to apply corresponding tension to the film, so that the actual use state can be simulated during the subsequent test, the accuracy of the aging test is improved, then the ultraviolet lamp 12 and the PTC heater 23 are started respectively, so that the inside of the box body 1 can be irradiated by ultraviolet rays and heated, the light and temperature rising environment is simulated, the film is accelerated to age, so that under the cooperation of the whole, the aging test of multiple groups of film samples can be realized by the test machine, and the tension suffered by the film in the actual use can be effectively simulated during the test, the accuracy and reliability of the test result are improved.

[0023] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9The application provides a technical scheme: the lower end of the outer surface of the rotating sleeve 15 is fixedly installed with a second bevel gear 29, the upper end of the back surface of the base 2 is movably connected with a rotating shaft 9 through a bearing, the front surface of the rotating shaft 9 is fixedly installed with a first bevel gear 10, the first bevel gear 10 is engaged with the second bevel gear 29, the back surface of the rotating shaft 9 is fixedly installed with a second synchronous wheel 11, the back surface of the air guide box 5 is fixedly installed with a working motor 7, the working motor 7 is electrically connected with the PLC controller 4, the output end of the working motor 7 is fixedly installed with a driving rod 42, the middle end of the driving rod 42 is movably connected with the middle end of the back surface of the air guide box 5 through a bearing, the front surface of the driving rod 42 is fixedly installed with a blower impeller 44, the surface of the driving rod 42 and located at the back of the air guide box 5 is fixedly installed with a first synchronous wheel 43, the middle end of the first synchronous wheel 43 and the middle end of the second synchronous wheel 11 are transmissionally connected with a synchronous belt 8, the back surface of the air guide box 5 and the upper end of the back surface of the box body 1 are fixedly installed with a circulating pipe 6, and the number of the circulating pipes 6 is two.

[0024] In the technical scheme, the working motor 7 is arranged, and under the action of the working motor 7, the driving rod 42, the blower impeller 44 and the first synchronous wheel 43 can rotate, under the action of the rotation of the blower impeller 44, the inside of the box body 1 can be circulated through the circulating pipe 6 and the air guide box 5, and can be effectively heated through the PTC heater 23, the uniformity of the temperature in different regions of the inside of the box body 1 is improved, and in the process of the rotation of the first synchronous wheel 43, the second synchronous wheel 11, the rotating shaft 9 and the first bevel gear 10 can be driven to rotate through the synchronous belt 8, the rotation of the first bevel gear 10 can drive the second bevel gear 29, the hollow rotating rod 24, the rotating sleeve 15 and the supporting disc 16 to rotate, so that the multiple groups of tested films on the supporting disc 16 can be more uniformly heated, lighted and water sprinkled during the rotation, and the accuracy during the comparison test of the multiple groups of films is improved.

[0025] Please refer to Figure 3 and Figure 10 The application provides a technical scheme: the left end of the bottom of the inner cavity of the base 2 is fixedly installed with a water tank 17, the top of the water tank 17 and the left end of the top of the base 2 are fixedly installed with a backflow frame 18, the lower end of the left side of the inner cavity of the water tank 17 is fixedly installed with a water pump 47, the water pump 47 is electrically connected with the PLC controller 4, and the output end of the water pump 47 is fixedly installed with a spraying pipe 19 between the left side of the inner cavity of the box body 1 through a pipeline.

[0026] In the technical scheme, the water tank 17, the water pump 47 and the spraying pipe 19 are arranged, during the test operation, the personnel can control the water pump 47 to operate through the PLC controller 4, the water in the water tank 17 can be pumped out, and the surface of the tested film in the inside of the box body 1 can be sprayed through the spraying pipe 19, so that the aging under the conditions of rain washing environment and thermal expansion and cold contraction is simulated, and the test effect is improved.

[0027] It should be noted that the bottom of the pressing frame 31 is provided with a drainage groove around the four corners, which is used to drain the water in the hollow part during the water test.

[0028] Please refer to Figure 10 The present application provides a technical solution: the inner cavity of the backflow frame 18 is sequentially fixed and installed with a grid plate 45 and a PP cotton filter screen 46 from top to bottom.

[0029] In this technical solution, through the setting of the grid plate 45, the top of the backflow frame 18 can be protected, and under the action of the PP cotton filter screen 46, the impurities in the backflow water in the backflow frame 18 can be filtered, improving the cleanliness of water recycling.

[0030] Please refer to Figure 7 The present application provides a technical solution: the upper end of the air guide cavity 32 is fixedly installed with a partition plate 37, the bottom of the rubber diaphragm 30 contacts the top of the partition plate 37, and the surface of the partition plate 37 is provided with a through hole.

[0031] In this technical solution, the partition plate 37 is provided to support the bottom of the rubber diaphragm 30.

[0032] Please refer to Figure 6 The present application provides a technical solution: the inner cavity of the rotating sleeve 15 is fixedly installed with a first rubber ring 33 at both ends, the surface of the hollow rotating rod 24 is slidably connected to the surface of the first rubber ring 33, the inner cavity of the rotating sleeve 15 is provided with a guide groove 35 on both sides, the upper end of the hollow rotating rod 24 on both sides and below the air hole 36 is fixedly connected with a guide block 34, and the surface of the guide block 34 is slidably connected to the surface of the guide groove 35.

[0033] In this technical solution, the first rubber ring 33 is provided to effectively improve the sealing effect of the contact between the hollow rotating rod 24 and the two ends of the rotating sleeve 15, and the guide groove 34 and the guide block 35 are provided to achieve the purpose of guiding between the rotating sleeve 15 and the hollow rotating rod 24, ensuring that the hollow rotating rod 24 and the rotating sleeve 15 can rotate synchronously.

[0034] Please refer to Figure 4 and Figure 8 The present application provides a technical solution: the two ends of the piston 38 are fixedly installed with a second rubber ring 39, the surface of the second rubber ring 39 is slidably connected to the inner cavity of the air guide cylinder 20, the front surface of the air guide cylinder 20 is fixedly installed with an exhaust valve, and the exhaust valve is electrically connected with the PLC controller 4.

[0035] The second rubber ring 39 is arranged, the sealing property of the contact between the piston 38 and the air guide cylinder 20 is effectively improved, the exhaust valve is arranged, and the personnel can conveniently exhaust the inside of the air guide cylinder 20 after test.

[0036] Please refer to Figure 1 and Figure 3 The application provides a technical scheme: the middle end of the inner cavity of the box body 1 is sequentially fixed and installed with a temperature sensor 13 and an ultraviolet radiation sensor 14 from left to right, the PLC controller 4 is electrically connected with the temperature sensor 13 and the ultraviolet radiation sensor 14 respectively, and the front surface of the box body 1 is movably connected with a protective door 3 through a hinge.

[0037] In the technical scheme, the temperature sensor 13 and the ultraviolet radiation sensor 14 are arranged, the temperature and the ultraviolet radiation intensity in the box body 1 can be monitored and fed back to the PLC controller 4 for data processing, so that the personnel can control the temperature and the ultraviolet radiation intensity according to test requirements.

[0038] Please refer to Figure 1 、 Figure 3 、 Figure 4 、 Figure 8 and Figure 9 The application provides a technical scheme: the PLC controller 4 is electrically connected with the servo electric cylinder 21, the PTC heater 23, the ultraviolet lamp 12 and the electromagnetic valve 26 respectively.

[0039] In the technical scheme, the PLC controller 4 is arranged, so that the personnel can control the servo electric cylinder 21, the PTC heater 23, the ultraviolet lamp 12 and the electromagnetic valve 26 respectively during test operation.

[0040] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the application, and are not limited to the protection scope of the application. Although the application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the application.

Claims

1. An accelerated aging test chamber for membrane testing, comprising a chamber (1), characterized in that: A PLC controller (4) is fixedly installed on the right side of the outer surface of the housing (1). An ultraviolet lamp (12) is fixedly installed on the top of the inner cavity of the housing (1). An air guide box (5) is fixedly installed on the lower end of the back of the housing (1). A PTC heater (23) is fixedly installed in the inner cavity of the air guide box (5). A base (2) is fixedly installed on the bottom of the housing (1). An air guide cylinder (20) is fixedly installed on the right end of the bottom of the inner cavity of the base (2). The air guide cylinder (20) is located on the left side. A solenoid valve (26) is fixedly installed at the lower end of the air guide cylinder (20). A piston (38) is slidably connected to the upper end of the inner cavity of the air guide cylinder (20). A vertical rod (40) is fixedly installed on the top of the piston (38). A fixed column (25) is slidably connected to the upper end of the vertical rod (40). A pressure spring (41) is fixedly installed between the bottom of the fixed column (25) and the top of the piston (38). A servo electric cylinder (21) is fixedly installed on the right end of the top of the base (2). A movable plate (22) is fixedly installed between the output end and the top of the fixed column (25). A rotating sleeve (15) is movably connected to the middle of the top of the base (2) via a bearing. A hollow rotating rod (24) is slidably connected to the inner cavity of the rotating sleeve (15). The left end of the movable plate (22) is movably connected to the lower end of the hollow rotating rod (24) via a bearing. A rotary joint (28) is fixedly installed between the left side of the solenoid valve (26) and the bottom of the hollow rotating rod (24) via a pipe. A pressure frame (31) is fixedly installed on the top of the hollow rotating rod (24). Air holes (36) are provided on the upper ends of both sides of the hollow rotating rod (24). A support plate (16) is fixedly installed on the upper end of the outer surface of the rotating sleeve (15). Air guide chambers (32) are provided around the support plate (16). A rubber diaphragm (30) is fixedly installed on the upper end of the air guide chamber (32). An air guide pipe (27) is fixedly installed between the bottom of the air guide chamber (32) and the upper end of the rotating sleeve (15).

2. The accelerated aging tester for membrane testing according to claim 1, characterized in that: A second bevel gear (29) is fixedly installed on the lower end of the outer surface of the rotating sleeve (15). A rotating shaft (9) is movably connected to the upper end of the back of the base (2) via a bearing. A first bevel gear (10) is fixedly installed on the front surface of the rotating shaft (9). The first bevel gear (10) meshes with the second bevel gear (29). A second synchronous pulley (11) is fixedly installed on the back of the rotating shaft (9). A working motor (7) is fixedly installed on the back of the air guide box (5). The working motor (7) is connected to the PLC control... The controller (4) is electrically connected. The output end of the working motor (7) is fixedly installed with a drive rod (42). The middle end of the drive rod (42) is movably connected to the middle end of the back of the air guide box (5) through a bearing. The front surface of the drive rod (42) is fixedly installed with a blower impeller (44). The surface of the drive rod (42) and the rear of the air guide box (5) are fixedly installed with a first synchronous pulley (43). The middle end of the first synchronous pulley (43) and the middle end of the second synchronous pulley (11) are connected by a synchronous belt (8).

3. The accelerated aging tester for membrane testing according to claim 1, characterized in that: A circulation pipe (6) is fixedly installed between the back of the air guide box (5) and the upper end of the back of the box body (1), and there are two circulation pipes (6).

4. The accelerated aging tester for membrane testing according to claim 1, characterized in that: A water tank (17) is fixedly installed at the left end of the bottom of the inner cavity of the base (2). A return frame (18) is fixedly installed between the top of the water tank (17) and the left end of the top of the base (2). A water pump (47) is fixedly installed at the lower end of the left side of the inner cavity of the water tank (17). The water pump (47) is electrically connected to the PLC controller (4). A spray pipe (19) is fixedly installed between the output end of the water pump (47) and the left side of the inner cavity of the box (1) through a pipe.

5. The accelerated aging tester for membrane testing according to claim 4, characterized in that: The inner cavity of the return frame (18) is fixedly installed with a grid plate (45) and a PP cotton filter screen (46) from top to bottom.

6. The accelerated aging tester for membrane testing according to claim 1, characterized in that: A partition (37) is fixedly installed at the upper end of the air guide cavity (32), the bottom of the rubber diaphragm (30) contacts the top of the partition (37), and the surface of the partition (37) is provided with through holes.

7. The accelerated aging tester for membrane testing according to claim 1, characterized in that: Both ends of the inner cavity of the rotating sleeve (15) are fixedly installed with a first rubber ring (33). The surface of the hollow rotating rod (24) is slidably connected to the surface of the first rubber ring (33). Guide grooves (35) are provided on both sides of the inner cavity of the rotating sleeve (15). Guide blocks (34) are fixedly connected to the upper ends of both sides of the hollow rotating rod (24) and below the air hole (36). The surface of the guide block (34) is slidably connected to the surface of the guide groove (35).

8. The accelerated aging tester for membrane testing according to claim 1, characterized in that: Both ends of the piston (38) are fixedly installed with a second rubber ring (39). The surface of the second rubber ring (39) is slidably connected to the inner cavity of the air guide cylinder (20). An exhaust valve is fixedly installed on the front surface of the air guide cylinder (20), and the exhaust valve is electrically connected to the PLC controller (4).

9. An accelerated aging tester for membrane testing according to claim 1, characterized in that: A temperature sensor (13) and an ultraviolet radiation sensor (14) are fixedly installed in the middle of the inner cavity of the box (1) from left to right. The PLC controller (4) is electrically connected to the temperature sensor (13) and the ultraviolet radiation sensor (14) respectively. A protective door (3) is movably connected to the front surface of the box (1) through a hinge.

10. An accelerated aging tester for membrane testing according to claim 1, characterized in that: The PLC controller (4) is electrically connected to the servo electric cylinder (21), the PTC heater (23), the ultraviolet lamp (12), and the solenoid valve (26), respectively.

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