Diffusion film quality detection device

Abstract

The invention relates to the technical field of film quality detection, and discloses a diffusion film quality detection device, which comprises a base, a detection mechanism, a detection mechanism, a control mechanism and a detection mechanism, wherein the top of the base is fixedly connected with a shell, the outer wall of the shell is fixedly connected with an operation table, and the outer wall of the shell is provided with a feeding port; the detection mechanism comprises a first connecting column fixedly connected to the inner wall of the shell, and the inner side of the first connecting column is fixedly connected with a first moving device. By arranging the bottom assembly, the top assembly can detect the optical property of the diffusion film while synchronously detecting the mechanical property and the sealing property of the diffusion film; according to the integrated detection, the tedious process of step-by-step detection in traditional equipment is avoided, the detection time is shortened, the functional range of the equipment is expanded, the optical properties of the diffusion film in different stress states can be dynamically detected, the detection efficiency is improved, and the detection comprehensiveness and accuracy are further enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of membrane quality detection, in particular to a diffusion membrane quality detection device. Background Art

[0002] Diffusion film is an optical film that is mainly used to adjust the propagation characteristics of light, make it evenly distributed or change the scattering direction of light. It is widely used in display technology, lighting, optical devices and other fields.

[0003] The patent application with application number CN201821459147.7 discloses a film quality detection device, including a box, a temperature controller, a display instrument, a stepper motor, and a blower. The box includes a centrifugal roller, a thermocouple, a protective net, a blowing plate, and several heating tubes. The centrifugal roller, the protective net, and the blowing plate are arranged on the inner walls on both sides of the box from top to bottom. The centrifugal roller passes through the inner wall of the box, and the centrifugal roller is controlled by a stepper motor. The thermocouple is installed on the inner wall of the box, and the thermocouple is arranged between the centrifugal roller and the protective net. The several heating tubes are installed on the insulation board arranged at the bottom end of the box through a pipe rack, and the insulation board is provided with air inlet holes.

[0004] When testing diffusion membranes, existing testing equipment usually needs to test the mechanical properties, optical properties, sealing and other performance parameters of the diffusion membrane one by one. This serial testing mode is not only cumbersome to operate, but also time-consuming, and it is difficult to meet the needs of modern industrial production for efficient testing. In addition, the long testing process may also interfere with the test results due to environmental factors, further reducing the accuracy and reliability of the test. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a diffusion membrane quality detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a diffusion membrane quality detection device, comprising a base, a shell is fixedly connected to the top of the base, an operating table is fixedly connected to the outer wall of the shell, and an input port is opened on the outer wall of the shell, and further comprising: The detection mechanism comprises a connecting column 1 fixedly connected to the inner wall of the shell, a moving device 1 is fixedly connected to the inner side of the connecting column 1, a clamping assembly is movably connected to the outer wall of the moving device 1, the upper and lower ends of the connecting column 1 are fixedly connected to connecting columns 2, the outer walls of the two connecting columns 2 are fixedly connected to tracks, a sliding groove is provided on the side of the two connecting columns 2 away from the track, and a connecting plate 1 is fixedly connected to the ends of the two connecting columns 2 away from the connecting column 1, the inner wall of the shell is fixedly connected to the connecting plate 1, the outer wall of the upper track is movably connected to a top assembly, and the outer wall of the lower track is movably connected to a bottom assembly, and the moving device 1 is used to control the position of the clamping assembly, so as to drive the diffusion membrane to move.

[0007] According to the above technical solution, the upper and lower ends of the connecting column 1 are fixedly connected with an elastic component 1, and the end of the elastic component 1 away from the connecting column 1 is fixedly connected with a pressure component. The elastic component 1 allows the pressure component to quickly reset when not subject to external force through its own elasticity.

[0008] According to the above technical solution, a push rod 1 is fixedly connected to one side of the connecting plate 1 away from the shell, and a movable component is fixedly connected to one end of the push rod 1 away from the connecting plate 1, and the push rod 1 is used to control the position of the movable component.

[0009] According to the above technical solution, the side of the connecting column 1 away from the moving device 1 is fixedly connected to the moving device 2, and the inner wall of the moving device 2 is movably connected to the extrusion plate 1. The moving device 2 is used to control the position of the extrusion plate and plays a role in controlling the state of the pressure component.

[0010] According to the above technical solution, the pressure component includes a U-shaped plate 1, the end of the elastic component 1 away from the connecting column 1 is fixedly connected to the U-shaped plate 1, both ends of the U-shaped plate 1 are rotatably connected to a force roller 1 through a bearing, the outer wall of the U-shaped plate 1 is fixedly connected to a bracket, and the end of the bracket away from the U-shaped plate 1 is rotatably connected to a force roller 2 through a bearing, and the force roller 2 is used to apply pressure to smooth the diffusion membrane. By setting the pressure component, the surface of the diffusion membrane can be automatically smoothed during the process of sending the diffusion membrane into the equipment. The component eliminates wrinkles or unevenness on the surface of the diffusion membrane by uniformly applying pressure, ensuring that the surface state of the diffusion membrane meets the requirements during the detection process, thereby avoiding interference with the detection data due to surface defects and improving the accuracy and reliability of the diffusion membrane detection.

[0011] According to the above technical scheme, the clamping assembly includes a slider, the outer wall of the slider is movably connected to a moving device, the end of the slider away from the moving device is fixedly connected to an extrusion plate 2, the end of the extrusion plate 2 away from the slider is fixedly connected to a bottom plate, a positioning groove is provided on the top of the bottom plate, the outer wall of the bottom plate is fixedly connected to a connecting plate 2, the inner wall of the connecting plate 2 is fixedly connected to a push rod 2, the top of the push rod 2 is fixedly connected to a connecting plate 3, the outer wall of the connecting plate 3 is fixedly connected to a top plate, the push rod 2 is used to control the height of the top, and plays a role in fixing the diffusion membrane. By setting the clamping assembly, the diffusion membrane to be detected can be positioned and clamped, which effectively avoids detection data errors caused by position offset or looseness, and ensures that the diffusion membrane always remains in a stable state during the detection process, thereby improving the accuracy and reliability of equipment detection.

[0012] According to the above technical scheme, the movable component includes a force-bearing plate, the end of the push rod 1 away from the connecting plate 1 is fixedly connected to the force-bearing plate, the outer wall of the force-bearing plate is fixedly connected to the movable plate 1, the outer wall of the movable plate 1 is movably connected to the slide groove, the side of the movable plate 1 away from the force-bearing plate is fixedly connected to the U-shaped plate 2, the inner wall of the U-shaped plate 2 is fixedly connected to the sliding column, the outer wall of the sliding column is sleeved with a spring, the top of the spring is fixedly connected to the U-shaped plate 2, the force-bearing plate moves under the drive of the push rod 1, and plays a role in controlling the position of the movable component.

[0013] According to the above technical scheme, the top component includes a movable plate 2, the inner wall of the movable plate 2 is movably connected to the track, the outer wall of the movable plate 2 is fixedly connected with a hollow column 1, the inner wall of the hollow column 1 is movably connected to the sliding column, the side of the movable plate 2 away from the track is fixedly connected with a connecting plate 4, the inner wall of the connecting plate 4 is fixedly connected with an optical detector 1, the bottom of the connecting plate 4 is fixedly connected with an outer frame 1, the bottom of the outer frame 1 is fixedly connected with a sealing ring 1, the outer wall of the outer frame 1 is fixedly connected with a control valve, the outer wall of the outer frame 1 is fixedly connected with a hose, the end of the hose away from the outer frame 1 is fixedly connected with an air pump, the inner wall of the outer shell is fixedly connected to the air pump, the air pump sends external gas into the interior of the outer frame 1, and by setting the top component, while detecting the sealing of the diffusion membrane, the mechanical properties of the diffusion membrane can be synchronously detected by adjusting the internal air pressure, avoiding the cumbersome process of step-by-step detection in traditional equipment, thereby shortening the detection time and greatly improving the detection efficiency.

[0014] According to the above technical scheme, the bottom component includes a movable plate three, the outer wall of the movable plate three is movably connected to the track, the outer wall of the movable plate three is fixedly connected to a hollow column two, the inner wall of the hollow column two is movably connected to the sliding column, the side of the movable plate three away from the track is fixedly connected to a connecting plate five, the inner wall of the connecting plate five is fixedly connected to an optical detector two, the top of the connecting plate five is fixedly connected to an outer frame two, the outer wall of the outer frame two is provided with a through hole, the top of the outer frame two is fixedly connected to a sealing ring two, the optical detector two detects the optical properties of the diffusion film in cooperation with the optical detector one, and by setting the bottom component, while the top component synchronously detects the mechanical properties and sealing of the diffusion film, it can also detect the optical properties of the diffusion film. This integrated detection not only avoids the cumbersome process of step-by-step detection in traditional equipment, shortens the detection time, but also expands the functional range of the equipment, enabling it to dynamically detect the optical properties of the diffusion film under different stress states, which not only improves the detection efficiency, but also further enhances the comprehensiveness and accuracy of the detection.

[0015] Compared with the prior art, the present invention provides a diffusion membrane quality detection device, which has the following beneficial effects: 1. The present invention sets a top component, and while detecting the sealing of the diffusion membrane, it can also simultaneously detect the mechanical properties of the diffusion membrane by adjusting the internal air pressure, thereby avoiding the cumbersome process of step-by-step detection in traditional equipment, thereby shortening the detection time and greatly improving the detection efficiency.

[0016] 2. The present invention sets a bottom component, so that the top component can simultaneously detect the mechanical properties and sealing of the diffusion membrane, and at the same time, it can also detect the optical properties of the diffusion membrane. This integrated detection not only avoids the cumbersome process of step-by-step detection in traditional equipment, shortens the detection time, but also expands the functional scope of the equipment, enabling it to dynamically detect the optical properties of the diffusion membrane under different stress states, which not only improves the detection efficiency, but also further enhances the comprehensiveness and accuracy of the detection.

[0017] 3. The present invention can position and clamp the diffusion membrane to be tested by setting a clamping component, effectively avoiding detection data errors caused by position offset or looseness, ensuring that the diffusion membrane always remains in a stable state during the detection process, thereby improving the accuracy and reliability of equipment detection.

[0018] 4. The present invention can automatically smooth the surface of the diffusion membrane by setting a pressure component during the process of sending the diffusion membrane into the equipment. The component eliminates wrinkles or unevenness on the surface of the diffusion membrane by applying pressure evenly, ensuring that the surface state of the diffusion membrane meets the requirements during the detection process, thereby avoiding interference with the detection data due to surface defects and improving the accuracy and reliability of the diffusion membrane detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of middle; Figure 4 Schematic diagram of the detection mechanism of the present invention Figure 1 ; Figure 5 Schematic diagram of the detection mechanism of the present invention Figure 2 ; Figure 6 It is a schematic diagram of the pressure assembly of the present invention; Figure 7 The clamping assembly of the present invention is shown in FIG. Figure 1 ; Figure 8 The clamping assembly of the present invention is shown in FIG. Figure 2 ; Fig. 9 It is a schematic diagram of the active components of the present invention; Fig.10 It is a schematic diagram of the top assembly of the present invention; Fig.11 It is a schematic diagram of the bottom component of the present invention.

[0020] In the figure: 1, base; 101, shell; 102, operating table; 103, input port; 2, detection mechanism; 201, connecting column 1; 202, moving device 1; 203, moving device 2; 204, elastic component 1; 205, connecting column 2; 206, track; 207, connecting plate 1; 208, slide; 209, push rod 1; 2010, extrusion plate 1; 21, pressure component; 211, U-shaped plate 1; 212, force roller 1; 213, bracket; 214, force roller 2; 22, clamping component; 221, slider; 222, extrusion plate 2; 223, bottom plate; 224, positioning groove; 225, connecting plate 2; 226, push rod 2; 227, connecting plate three; 228, top plate; 23, movable assembly; 231, movable plate one; 232, force plate; 233, U-shaped plate two; 234, sliding column; 235, spring; 24, top assembly; 241, movable plate two; 242, hollow column one; 243, connecting plate four; 244, optical detector one; 245, outer frame one; 246, sealing ring one; 247, control valve; 248, hose; 249, air pump; 25, bottom assembly; 251, movable plate three; 252, hollow column two; 253, connecting plate five; 254, outer frame two; 255, through hole; 256, sealing ring two; 257, optical detector two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example 1: See Figure 1-Figure 8The present invention provides a technical solution: a diffusion membrane quality detection device, comprising a base 1, a housing 101 is fixedly connected to the top of the base 1, an operating table 102 is fixedly connected to the outer wall of the housing 101, and an input port 103 is opened on the outer wall of the housing 101, and further comprising: The detection mechanism 2 includes a connecting column 201 fixedly connected to the inner wall of the shell 101, a moving device 202 is fixedly connected to the inner side of the connecting column 201, and the outer wall of the moving device 202 is movably connected to the clamping assembly 22. The upper and lower ends of the connecting column 201 are fixedly connected to the connecting column 205, and the outer walls of the two connecting columns 205 are fixedly connected to the track 206. The two connecting columns 205 are provided with a sliding groove 208 on the side away from the track 206. The two connecting columns 205 are fixedly connected to a connecting plate 207 on the end away from the connecting column 201. The inner wall of the shell 101 is fixedly connected to the connecting plate 207, the outer wall of the upper track 206 is movably connected to the top assembly 24, and the outer wall of the lower track 206 is movably connected to the bottom assembly 25. The moving device 202 is used to control the position of the clamping assembly 22, so as to drive the diffusion membrane to move. The upper and lower ends of the connecting column 201 are fixedly connected to the elastic Component 1 204, one end of the elastic component 1 204 away from the connecting column 1 201 is fixedly connected with the pressure component 21, and the elastic component 1 204 allows the pressure component 21 to quickly reset when not subjected to external force through its own elasticity, and the side of the connecting plate 1 207 away from the housing 101 is fixedly connected with a push rod 1 209, and the end of the push rod 1 209 away from the connecting plate 1 207 is fixedly connected with a movable component 23, and the push rod 1 209 is used to control the position of the movable component 23, and the side of the connecting column 1 201 away from the moving device 1 202 is fixedly connected with a moving device 203, and the inner wall of the moving device 203 is movably connected with an extrusion plate 1 2010, and the moving device 203 is used to control the position of the extrusion plate, so as to control the state of the pressure component 21. When the device needs to push the diffusion membrane to be tested out of the device, the mobile device 203 will drive the extrusion plate 1 2010 to apply pressure to the pressure component 21, so as to release the clamping of the force roller 214 on the diffusion membrane.

[0025] The pressure component 21 includes a U-shaped plate 211, an end of the elastic component 204 away from the connecting column 201 is fixedly connected to the U-shaped plate 211, both ends of the U-shaped plate 211 are rotatably connected to a force roller 212 through bearings, the outer wall of the U-shaped plate 211 is fixedly connected to a bracket 213, and the end of the bracket 213 away from the U-shaped plate 211 is rotatably connected to a force roller 214 through a bearing. When the force roller 212 and the force roller 214 are not subjected to external force, the U-shaped plate 211 drives the force roller 214 to move toward the middle under the elastic force of the elastic component 204, thereby applying pressure to the diffusion membrane.

[0026] The clamping assembly 22 includes a slider 221, the outer wall of the slider 221 is movably connected to the moving device 1 202, the end of the slider 221 away from the moving device 1 202 is fixedly connected to the extrusion plate 222, the end of the extrusion plate 222 away from the slider 221 is fixedly connected to the bottom plate 223, the top of the bottom plate 223 is provided with a positioning groove 224, the outer wall of the bottom plate 223 is fixedly connected to the connecting plate 225, the inner wall of the connecting plate 225 is fixedly connected to the push rod 226, the top of the push rod 226 is fixedly connected to the connecting plate 3 227, the outer wall of the connecting plate 3 227 is fixedly connected to the top plate 228, when it is necessary to detect the diffusion membrane, align one end of the diffusion membrane with the positioning groove 224, then start the push rod 226 to drive the top to move downward, after the diffusion membrane is fixed, start the moving device 1 202 to drive the diffusion membrane to move into the device.

[0027] Example 2: Please refer to Figure 9-11 On the basis of the first embodiment, the present invention provides a technical solution: the movable component 23 includes a force-bearing plate 232, an end of a push rod 209 away from the connecting plate 207 is fixedly connected to the force-bearing plate 232, an outer wall of the force-bearing plate 232 is fixedly connected with a movable plate 231, an outer wall of the movable plate 231 is movably connected with the slide groove 208, a side of the movable plate 231 away from the force-bearing plate 232 is fixedly connected with a U-shaped plate 233, an inner wall of the U-shaped plate 233 is fixedly connected with a sliding column 234, an outer wall of the sliding column 234 is sleeved with a spring 235, and the top of the spring 235 is fixedly connected to the U-shaped plate 233. When it is necessary to detect the diffusion membrane, the driving push rod 209 drives the force-bearing plate 232 to move toward the middle, and the moving force-bearing plate 232 drives the movable plate 231 and the U-shaped plate 233 to move together. At this time, the spring 235 on the sliding column 234 pushes the top component 24 and the bottom component 25 to move toward the center.

[0028] The top assembly 24 includes a movable plate 241, the inner wall of the movable plate 241 is movably connected to the track 206, the outer wall of the movable plate 241 is fixedly connected to a hollow column 242, the inner wall of the hollow column 242 is movably connected to the sliding column 234, the side of the movable plate 241 away from the track 206 is fixedly connected to a connecting plate 243, the inner wall of the connecting plate 243 is fixedly connected to an optical detector 244, the bottom of the connecting plate 243 is fixedly connected to an outer frame 245, the bottom of the outer frame 245 is fixedly connected to a sealing ring 246, the outer wall of the outer frame 245 is fixedly connected to a control valve 247, and the outer frame 247 is fixedly connected to the outer frame 247. The outer wall of the housing 101 is fixedly connected with a hose 248, and one end of the hose 248 away from the outer frame 245 is fixedly connected with an air pump 249. The inner wall of the housing 101 is fixedly connected with the air pump 249. When it is necessary to detect the diffusion membrane, the optical detector 244 is first started to detect the optical properties of the diffusion membrane, and then the air pump 249 is started to send the gas into the outer frame 245. At this time, the equipment detects the sealing, mechanical properties, and optical properties of the diffusion membrane, and also detects the optical properties of the diffusion membrane under different stress conditions. After the detection is completed, the gas in the outer frame 245 is discharged through the control valve 247.

[0029] The bottom component 25 includes a movable plate three 251, the outer wall of the movable plate three 251 is movably connected to the track 206, the outer wall of the movable plate three 251 is fixedly connected to the hollow column two 252, the inner wall of the hollow column two 252 is movably connected to the sliding column 234, the side of the movable plate three 251 away from the track 206 is fixedly connected to the connecting plate five 253, the inner wall of the connecting plate five 253 is fixedly connected to the optical detector two 257, the top of the connecting plate five 253 is fixedly connected to the outer frame two 254, the outer wall of the outer frame two 254 is provided with a through hole 255, and the top of the outer frame two 254 is fixedly connected to the sealing ring two 256.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A diffusion membrane quality detection device, comprising a base (1), a housing (101) fixedly connected to the top of the base (1), an operating table (102) fixedly connected to the outer wall of the housing (101), an input port (103) opened on the outer wall of the housing (101), characterized in that: Also includes: The detection mechanism (2) comprises a connection column (201) fixedly connected to the inner wall of the housing (101), a moving device (202) fixedly connected to the inner side of the connection column (201), a clamping assembly (22) movably connected to the outer wall of the moving device (202), a connection column (205) fixedly connected to the upper and lower ends of the connection column (201), a track (206) fixedly connected to the outer walls of the two connection columns (205), and the two connection columns (205) are far away from the track (2 06) are provided with a slide groove (208), one end of the two connecting columns (205) away from the connecting column (201) is fixedly connected to the connecting plate (207), the inner wall of the shell (101) is fixedly connected to the connecting plate (207), the outer wall of the upper track (206) is movably connected to the top component (24), and the outer wall of the lower track (206) is movably connected to the bottom component (25), and the moving device (202) is used to control the position of the clamping component (22) to drive the diffusion membrane to move.

2. A diffusion film quality detection device according to claim 1, characterized in that: The upper and lower ends of the connecting column 1 (201) are fixedly connected to an elastic component 1 (204), and the end of the elastic component 1 (204) away from the connecting column 1 (201) is fixedly connected to a pressure component (21). The elastic component 1 (204) allows the pressure component (21) to quickly reset when not subject to external force through its own elasticity.

3. A diffusion film quality detection device according to claim 2, characterized in that: A push rod 1 (209) is fixedly connected to one side of the connecting plate 1 (207) away from the housing (101), and an end of the push rod 1 (209) away from the connecting plate 1 (207) is fixedly connected to a movable component (23). The push rod 1 (209) is used to control the position of the movable component (23).

4. A diffusion film quality detection device according to claim 3, characterized in that: The connecting column 1 (201) is fixedly connected to the side of the moving device 1 (202) away from the moving device 1 (202), and the inner wall of the moving device 2 (203) is movably connected to the extrusion plate 1 (2010). The moving device 2 (203) is used to control the position of the extrusion plate, thereby controlling the state of the pressure component (21).

5. A diffusion film quality detection device according to claim 4, characterized in that: The pressure component (21) comprises a U-shaped plate (211), one end of the elastic component (204) away from the connecting column (201) is fixedly connected to the U-shaped plate (211), both ends of the U-shaped plate (211) are rotatably connected to a force roller (212) via bearings, the outer wall of the U-shaped plate (211) is fixedly connected to a bracket (213), and one end of the bracket (213) away from the U-shaped plate (211) is rotatably connected to a force roller (214) via a bearing, and the force roller (214) is used to apply pressure to smooth the diffusion membrane.

6. A diffusion film quality detection device according to claim 5, characterized in that: The clamping assembly (22) comprises a slider (221), the outer wall of the slider (221) is movably connected to the moving device 1 (202), the end of the slider (221) away from the moving device 1 (202) is fixedly connected to the extrusion plate 2 (222), the end of the extrusion plate 2 (222) away from the slider (221) is fixedly connected to the bottom plate (223), the top of the bottom plate (223) is provided with a positioning groove (224), the outer wall of the bottom plate (223) is fixedly connected to the connecting plate 2 (225), the inner wall of the connecting plate 2 (225) is fixedly connected to the push rod 2 (226), the top of the push rod 2 (226) is fixedly connected to the connecting plate 3 (227), the outer wall of the connecting plate 3 (227) is fixedly connected to the top plate (228), the push rod 2 (226) is used to control the height of the top, and plays a role in fixing the diffusion membrane.

7. A diffusion film quality detection device according to claim 6, characterized in that: The movable component (23) comprises a force-bearing plate (232), one end of the push rod 1 (209) away from the connecting plate 1 (207) is fixedly connected to the force-bearing plate (232), the outer wall of the force-bearing plate (232) is fixedly connected to the movable plate 1 (231), the outer wall of the movable plate 1 (231) is movably connected to the slide groove (208), the side of the movable plate 1 (231) away from the force-bearing plate (232) is fixedly connected to the U-shaped plate 2 (233), the inner wall of the U-shaped plate 2 (233) is fixedly connected to the sliding column (234), the outer wall of the sliding column (234) is sleeved with a spring (235), the top of the spring (235) is fixedly connected to the U-shaped plate 2 (233), the force-bearing plate (232) moves under the drive of the push rod 1 (209), and plays a role in controlling the position of the movable component (23).

8. A diffusion film quality detection device according to claim 7, characterized in that: The top assembly (24) comprises a movable plate 2 (241), the inner wall of the movable plate 2 (241) being movably connected to the track (206), the outer wall of the movable plate 2 (241) being fixedly connected to a hollow column 1 (242), the inner wall of the hollow column 1 (242) being movably connected to a sliding column (234), a connecting plate 4 (243) being fixedly connected to a side of the movable plate 2 (241) away from the track (206), the inner wall of the connecting plate 4 (243) being fixedly connected to an optical detector 1 (244), the connecting plate 4 (243) The bottom of the housing (101) is fixedly connected to an outer frame 1 (245), the bottom of the outer frame 1 (245) is fixedly connected to a sealing ring 1 (246), the outer wall of the outer frame 1 (245) is fixedly connected to a control valve (247), the outer wall of the outer frame 1 (245) is fixedly connected to a hose (248), one end of the hose (248) away from the outer frame 1 (245) is fixedly connected to an air pump (249), the inner wall of the housing (101) is fixedly connected to the air pump (249), and the air pump (249) delivers external gas into the interior of the outer frame 1 (245).

9. A diffusion film quality detection device according to claim 8, characterized in that: The bottom component (25) comprises a movable plate three (251), the outer wall of the movable plate three (251) is movably connected to the track (206), the outer wall of the movable plate three (251) is fixedly connected to a hollow column two (252), the inner wall of the hollow column two (252) is movably connected to the sliding column (234), the side of the movable plate three (251) away from the track (206) is fixedly connected to a connecting plate five (253), the inner wall of the connecting plate five (253) is fixedly connected to an optical detector two (257), the top of the connecting plate five (253) is fixedly connected to an outer frame two (254), the outer wall of the outer frame two (254) is provided with a through hole (255), the top of the outer frame two (254) is fixedly connected to a sealing ring two (256), and the optical detector two (257) detects the optical properties of the diffusion film in cooperation with the optical detector one (244).

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