A mask nose bridge integrity detection device

Abstract

The invention provides a device for detecting the integrity of a nose bridge strip of a mask. The device comprises a traveling frame and a testing platform, and also comprises a testing system. The traveling frame is fixedly connected to the end surface of the testing platform, a sampling mechanism is arranged inside the traveling frame, the sampling mechanism comprises a positioning plate, a lower end surface of the positioning plate is fixedly connected to a limiting seat, a camera is fixedly installed on one side of the limiting seat through a connecting rod, two groups of fixed plates are symmetrically fixedly connected to the lower end surface of the limiting seat, adjacent sides of the two groups of fixed plates are fixedly connected to a connecting shaft, a sampling cylinder is arranged on the outside of the connecting shaft, a semiconductor refrigeration plate and a smoother are fixedly connected to the outside of the connecting shaft, a heating cover is fixedly connected to the lower end surface of the limiting seat, a hydraulic cylinder is installed on one side of the traveling frame, and an installation groove is provided on the end surface of the testing platform. The device can accurately detect problems such as breakage, insufficient length, missing and position offset of the nose bridge strip of the mask, and has high detection accuracy and detection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of mask detection, and in particular to a device for detecting the integrity of a nose bridge strip of a mask. Background Art

[0002] Masks are daily protective equipment against infection. In order to make the masks fit more firmly on people's faces and achieve basic protection, manufacturers will weld a nose bridge strip at the bridge of the nose when producing masks. The nose bridge strip of a qualified disposable mask must be placed intact in the middle of the two pressure lines on the upper part of the mask piece. If there is no nose bridge strip and / or the nose bridge strip deviates from the middle position of the two pressure lines, it is an unqualified disposable mask and cannot fully isolate viruses and bacteria during use.

[0003] Therefore, after the production of the mask is completed, it is necessary to check whether the nose bridge strip in the mask is perfectly filled, because the nose bridge strip is made of metal. The current nose bridge strip detection device generally detects the presence of the nose bridge strip through a sensor. Although this method can detect whether there is a nose bridge strip in the mask, the existing detection device cannot detect the problem of broken, missing or insufficient length of the nose bridge strip in the mask. Such defective products flowing into the market will have a great impact on the company. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the prior art, the present invention provides a mask nose bridge integrity detection device, comprising a traveling frame and a detection platform, and also comprising a detection system, wherein the traveling frame is fixedly connected to the end surface of the detection platform, a sampling mechanism is arranged inside the traveling frame, the sampling mechanism comprises a positioning plate, the lower end surface of the positioning plate is fixedly connected to a limiting seat, a camera is fixedly installed on one side of the limiting seat through a connecting rod, two groups of fixed plates are symmetrically fixedly connected to the lower end surface of the limiting seat, adjacent sides of the two groups of fixed plates are fixedly connected to a connecting shaft, a sampling cylinder is arranged on the outside of the connecting shaft, a semiconductor refrigeration plate and a smoother are fixedly connected to the outside of the connecting shaft, a heating hood is fixedly connected to the lower end surface of the limiting seat, a hydraulic cylinder is installed on one side of the traveling frame, an installation groove is provided on the upper end surface of the detection platform, and a material rack is rotatably connected inside the installation groove.

[0006] As a further preference, the traveling frame includes two groups of support frames and one group of crossbeams, and the distance between the two groups of support frames is equal to the length of the limiting seat.

[0007] As a further preference, the output end of the hydraulic cylinder is fixedly connected to a group of telescopic rods, and one end of the telescopic rods facing away from the hydraulic cylinder passes through the traveling frame and is fixedly connected to one side of the sampling mechanism.

[0008] As a further preference, the detection system is communicatively connected to the camera, and the detection system includes a data receiving module, a controller, a data processing module and a display screen. The data receiving module is used to receive images taken by the camera, the controller controls the entire detection system, the data processing module is used to analyze and process the images received by the data receiving module, and the display screen is used to display the analysis and processing results of the data processing module.

[0009] As a further preference, there are two groups of semiconductor refrigeration plates spaced on both sides of the sampling tube, and the semiconductor refrigeration plates are located on the side of the lower part of the sampling tube adjacent to the camera.

[0010] As a further preference, the sampling tube is tangent to the upper end face of the detection table, the smoother frame is outside the sampling tube, the smoother includes a smoothing plate and two sets of connecting plates, the smoothing plate is fixedly connected to the side end face of the connecting shaft through the two sets of connecting plates, and the smoothing plate is in contact with the outside of the sampling tube.

[0011] As a further preference, the heating cover covers the side of the upper portion of the sampling tube facing away from the camera, and a heating plate is provided inside the heating cover to heat the covered portion of the sampling tube.

[0012] As a further preference, the sampling tube includes a connecting sleeve, a bearing is installed inside the connecting sleeve, a honeycomb mesh is arranged outside the connecting sleeve, and the outside of the honeycomb mesh is wrapped with a rubber sleeve.

[0013] As a further preference, the sampling cylinder is rotatably connected to the outside of the connecting shaft via a bearing, and the bearing can effectively reduce the friction of the rotation of the sampling cylinder.

[0014] As a further preference, the side of the rubber sleeve adjacent to the connecting sleeve is filled with paraffin, and the paraffin completely fills the gaps of the honeycomb network, and the honeycomb network is fixedly connected to the rubber sleeve.

[0015] As a further preference, the material rack includes a stacking plate, a receiving groove is provided at the bottom of one side of the stacking plate, the inner wall of the receiving groove is rotatably connected to one side of the containing plate, and the other side of the containing plate is rotatably connected to two sets of limiting rods.

[0016] As a further preference, the size of the holding plate is adapted to the storage slot, and the distance between the two groups of limiting rods on the opposite side is equal to the width of the stacking plate.

[0017] As a further preference, when the material rack is stored in the installation slot, the surface of the stacking plate is flush with the upper end surface of the detection table.

[0018] As a further preference, magnets are provided inside the stacking plate and the limiting rod.

[0019] (2) Beneficial effects

[0020] The invention provides a device for detecting the integrity of a nose bridge strip of a mask, which has the following beneficial effects: the device is provided with a sampling mechanism and a material rack, wherein a honeycomb network is provided inside a sampling cylinder, the honeycomb network connects a rubber sleeve and a connecting sleeve, and the gaps in the honeycomb network are filled with paraffin wax, a heating cover covers one side of the sampling cylinder, and the paraffin wax inside the sampling cylinder can be heated and melted by the heating cover, and a smoother is provided on the connecting shaft, and a smoothing plate on the smoother can smooth the area where the paraffin wax melts inside the sampling cylinder, so that the surface of the sampling cylinder is in a uniform and flat state when in contact with the mask, which is convenient for leaving a fresh mark, and a camera and a detection system are provided, and an image of the mask mark on the sampling cylinder taken by the camera is sent to the detection system, and a data processing module is used to process and analyze the mark image to obtain the position where the nose bridge strip in the detection mask is broken, missing, or insufficient in length, so that a mask with a defective nose bridge strip can be accurately found, and multiple masks can be detected at one time, thereby effectively improving work efficiency and having high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the mask nose bridge integrity detection device of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the traveling frame and the sampling mechanism of the present invention;

[0023] Figure 3 This is another schematic diagram of the connection structure between the traveling frame and the sampling mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection structure of the sampling mechanism of the present invention;

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the sampling mechanism of the present invention;

[0026] Figure 6 This is a schematic cross-sectional structural diagram of the sampling tube of the present invention;

[0027] Figure 7 It is a schematic diagram of the material rack structure of the present invention;

[0028] Figure 8 This is a block diagram of the detection system of the present invention.

[0029] In the figure: 1 traveling frame, 2 sampling mechanism, 3 testing table, 4 mounting slot, 5 material rack, 6 hydraulic cylinder, 7 positioning plate, 8 limit seat, 9 fixing plate, 10 semiconductor refrigeration plate, 11 smoother, 12 sampling tube, 13 heating cover, 14 connecting rod, 15 camera, 16 connecting shaft, 17 rubber sleeve, 18 honeycomb mesh, 19 connecting sleeve, 20 bearing, 21 stacking plate, 22 limit rod, 23 holding plate, 24 rotating connecting column, 25 receiving slot. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0035] An embodiment of the present invention provides a mask nose bridge integrity detection device, comprising a traveling frame 1 and a detection platform 3, and also comprising a detection system. The traveling frame 1 is fixedly connected to the upper end surface of the detection platform 3, and a sampling mechanism 2 is arranged inside the traveling frame 1. The sampling mechanism 2 includes a positioning plate 7, and the lower end surface of the positioning plate 7 is fixedly connected to a limit seat 8. A camera 15 is fixedly installed on one side of the limit seat 8 through a connecting rod 14. Two groups of fixed plates 9 are symmetrically fixedly connected to the lower end surface of the limit seat 8, and adjacent sides of the two groups of fixed plates 9 are fixedly connected to a connecting shaft 16. A sampling cylinder 12 is arranged on the outside of the connecting shaft 16, and a semiconductor refrigeration plate 10 and a smoother 11 are fixedly connected to the outside of the connecting shaft 16. A heating cover 13 is fixedly connected to the lower end surface of the limit seat 8, and a hydraulic cylinder 6 is installed on one side of the traveling frame 1. The upper end surface of the detection platform 3 is provided with a mounting groove 4, and a material rack 5 is rotatably connected inside the mounting groove 4.

[0036] In this embodiment, if Figure 1-3 As shown, the traveling frame 1 includes two groups of support frames and one group of cross beams. The distance between the two groups of support frames is equal to the length of the limit seat 8, and the hydraulic cylinder 6 is installed on the cross beam.

[0037] Specifically, the output end of the hydraulic cylinder 6 is fixedly connected to a group of telescopic rods, and the end of the telescopic rod facing away from the hydraulic cylinder 6 passes through the traveling frame 1 and is fixedly connected to one side of the sampling mechanism 2. The hydraulic cylinder 6 can adjust the position of the sampling mechanism 2 on the traveling frame 1 through the telescopic rods.

[0038] In this embodiment, if Figure 4 and Figure 5 As shown, there are two groups of semiconductor refrigeration plates 10 spaced on both sides of the sampling tube 12, and the semiconductor refrigeration plates 10 are located on the side of the lower part of the sampling tube 12 adjacent to the camera 15. The semiconductor refrigeration plates 10 do not contact the sampling tube 12, and the semiconductor refrigeration plates 10 can effectively cool the sampling tube 12.

[0039] Specifically, the sampling tube 12 is tangent to the upper end face of the testing table 3, and the smoother 11 is framed on the outside of the sampling tube 12. The smoother 11 includes a smoothing plate and two sets of connecting plates. The smoothing plate is fixedly connected to the side end face of the connecting shaft 16 through the two sets of connecting plates. The smoothing plate fits the outside of the sampling tube 12, so that when the sampling tube 12 rolls, the smoother 11 will smooth the outside of the sampling tube 12.

[0040] In addition, the heating cover 13 covers the upper side of the sampling tube 12 away from the camera 15, and a heating plate is provided inside the heating cover 13 to heat the covered part of the sampling tube 12. The temperature inside the heating cover 13 is 80-100°C.

[0041] In this embodiment, the sampling tube 12 includes a connecting sleeve 19 , a bearing 20 is installed inside the connecting sleeve 19 , a honeycomb mesh 18 is provided outside the connecting sleeve 19 , and a rubber sleeve 17 is wrapped outside the honeycomb mesh 18 .

[0042] Specifically, the sampling tube 12 is rotatably connected to the outside of the connecting shaft 16 through the bearing 20. The bearing 20 can effectively reduce the friction of the rotation of the sampling tube 12, so that when the sampling tube 12 rolls, the linear velocity of the sampling tube 12 will be equal to the movement speed of the sampling mechanism 2.

[0043] In this embodiment, the side adjacent to the rubber sleeve 17 and the connecting sleeve 19 is filled with paraffin wax, and the paraffin wax completely fills the gaps in the honeycomb mesh 18. The honeycomb mesh 18 is fixedly connected to the rubber sleeve 17, and both the rubber sleeve 17 and the honeycomb mesh 18 are made of rubber.

[0044] Among them, the heating cover 13 will heat and melt the paraffin inside the sampling tube 12, and then the smoother 11 will smooth the surface of the sampling tube 12. The smoothed sampling tube 12 is pressed on the mask, and the nose bridge will form an obvious mark on the sampling tube 12. At the same time, the semiconductor refrigeration plate 10 will cool the sampling tube 12 to solidify the paraffin, and under the action of the honeycomb mesh 18, the rubber sleeve 17 itself will not reset, so that the mark on the surface of the sampling tube 12 can be clearly seen.

[0045] In this embodiment, the material rack 5 includes a stacking plate 21, and a receiving groove 25 is opened at the bottom of one side of the stacking plate 21. The inner wall of the receiving groove 25 is rotatably connected to one side of the containing plate 23, and the other side of the containing plate 23 is rotatably connected to two sets of limiting rods 22.

[0046] Specifically, the size of the holding plate 23 is adapted to the receiving slot 25 , and the distance between the two sets of limiting rods 22 on the opposite side is equal to the width of the stacking plate 21 .

[0047] Among them, the bottom of the front end and the bottom of the rear end of the stacking plate 21 are both provided with rotating connecting columns 24, and the stacking plate 21 is rotatably connected to the inside of the mounting groove 4 through the rotating connecting columns 24. The width of the stacking plate 21 is equal to the width of the mask.

[0048] Furthermore, when the material rack 5 is received in the mounting groove 4 , the surface of the stacking plate 21 is flush with the upper end surface of the detection platform 3 , and magnets are provided inside the stacking plate 21 and the limiting rod 22 .

[0049] In addition, when the material rack 5 is perpendicular to the detection table 3, the mask is placed between the stacking plate 21 and the limit rod 22, and the holding plate 23 will support the mask. When the material rack 5 is stored in the installation groove 4, the stacking plate 21 is deflected, and the mask is tilted, so that the nose bridge of the mask is exposed and not covered by the mask above. Since the mask is on the holding plate 23 and the holding plate 23 is rotated when the stacking plate 21 is deflected, the spacing between each mask is equal when the stacking plate 21 is inside the installation groove 4, which can be manually adjusted if necessary. When the material rack 5 is inside the installation groove 4, the limit rod 22 is pressed on the mask, and the stacking plate 21 and the limit rod 22 clamp the mask through magnets. At this time, the nose bridge of the mask is located between the two sets of limit rods 22.

[0050] In this embodiment, the width of the sampling tube 12 is equal to the distance between the two sets of limiting rods 22 .

[0051] In this embodiment, the detection system is communicatively connected with the camera 15. The detection system includes a data receiving module, a controller, a data processing module and a display screen. The data receiving module is used to receive images taken by the camera 15. The controller controls the entire detection system. The data processing module is used to analyze and process the images received by the data receiving module. The display screen is used to display the analysis and processing results of the data processing module.

[0052] Among them, limited parameters can be set through the controller, and the detection system is subjected to at least 100 simulation trainings before use, and the distance between the two groups of nose bridge strips in the image transmitted by the camera 15 and the length of the nose bridge strip of a normal mask are recorded through simulation training.

[0053] Furthermore, when testing the mask, the camera 15 is used to capture the mask imprint image on the sampling tube 12, and the captured image is sent to the detection system by wireless transmission. The data processing module is used to process and analyze the imprint image. The processing and analysis process is as follows:

[0054] S1: Determine the position of the first nose bridge strip on the print, then determine the positions of all subsequent nose bridge strips, and label these nose bridge strips as 1, 2, 3, 4, 5, etc. Calculate the spacing of all nose bridge strips, and obtain the standard spacing of the nose bridge strips of the test mask based on the mode of the spacing of the nose bridge strips;

[0055] S2: Search for the nose bridge strips with a spacing twice the standard spacing. Add a number X between the two nose bridge strips with a spacing twice the standard spacing. X is the larger number of the two nose bridge strips with a spacing twice the standard spacing. Then, add 1 to all nose bridge strip numbers after X.

[0056] S3: Repeat step S2 to complete the labeling of the nose bridge strips on all masks;

[0057] S4: Analyze the nose bridge strip marks of all masks with nose bridge strips, observe the length and continuity of the nose bridge strip marks. If there is a discontinuous mark, the nose bridge strip of the mask is broken. If the mark is not long enough, the nose bridge strip is short. Note the numbers of the broken nose bridge strips and the shorter nose bridge strips, and display the exact numbers of the nose bridge strips on the display screen. Finally, manually take out the mask represented by the displayed number to complete the mask inspection.

[0058] In this embodiment, the length of the nose bridge strip of the mask is set by a controller, and for some nose bridge strips that are offset, the detection result shows that there is a large gap on one side of the nose bridge strip after the nose bridge strip is offset, and the strip will be classified as shorter during detection.

[0059] Working principle: When testing the mask, first stack the mask on the holding plate 23, then rotate the stacking plate 21 to enter the installation slot 4, and the mask will also rotate under the action of the limiting rod 22 and the holding plate 23. The masks will be stacked on each other and the nose bridge will be exposed. Then the stacking plate 21 and the limiting rod 22 will clamp the mask through the magnet, and the sampling mechanism 2 will be driven by the hydraulic cylinder 6 to move. The heating cover 13 will melt the paraffin inside the sampling tube 12, and the melting smoother 11 will smooth the outside of the sampling tube 12. Under the driving of the hydraulic cylinder 6, the mask will be stacked on the holding plate 23. The sampling tube 12 will roll on the testing table 3, and then the sampling tube 12 will be printed on the mask. The mask and the nose bridge will form an imprint on the sampling tube 12. Then the semiconductor refrigeration plate 10 will cool and solidify the paraffin, and the imprint will be retained. The image of the outside of the sampling tube 12 will be captured by the camera 15 and transmitted to the detection system. The detection system will detect whether there is a broken, missing or insufficient nose bridge in the mask, and display it on the display screen. Finally, the personnel will take out the mask represented by the number displayed on the display screen to complete the mask inspection.

[0060] In summary, the present invention provides a mask nose bridge integrity detection device, which is provided by setting a sampling mechanism and a material rack, wherein a honeycomb mesh is provided inside the sampling barrel, the honeycomb mesh connects the rubber sleeve and the connecting sleeve, and the gaps in the honeycomb mesh are filled with paraffin, and a heating cover covers one side of the sampling barrel, and the paraffin inside the sampling barrel can be heated and melted by the heating cover. At the same time, a smoother is provided on the connecting shaft, and the smoothing plate on the smoother can smooth the area where the paraffin inside the sampling barrel is melted, so that the surface of the sampling barrel is in a uniform flat state when it contacts the mask, which is convenient for leaving a fresh mark. At the same time, a camera and a detection system are provided, and the mask mark image on the sampling barrel taken by the camera is sent to the detection system. The data processing module is used to process and analyze the mark image to obtain the position where the nose bridge is broken, missing, or insufficient in length in the detection mask, so that the mask with a defective nose bridge can be accurately found, and multiple masks can be detected at one time, which effectively improves work efficiency and has high detection accuracy.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A mask nose bridge integrity detection device, comprising a traveling frame (1) and a detection table (3), characterized in that: The invention also includes a detection system, wherein the traveling frame (1) is fixedly connected to the upper end surface of the detection platform (3), a sampling mechanism (2) is provided inside the traveling frame (1), and the sampling mechanism (2) includes a positioning plate (7), the lower end surface of the positioning plate (7) is fixedly connected to a limiting seat (8), a camera (15) is fixedly installed on one side of the limiting seat (8) through a connecting rod (14), and two groups of fixed plates (9) are symmetrically fixedly connected to the lower end surface of the limiting seat (8), and the two groups of fixed plates (9) are fixedly connected to the upper end surface of the detection platform (3). ) is fixedly connected to one side adjacent to the test platform (3), a connecting shaft (16) is provided on the outside of the connecting shaft (16), a sampling cylinder (12) is fixedly connected to the outside of the connecting shaft (16), a semiconductor refrigeration plate (10) and a smoother (11) are fixedly connected, a heating cover (13) is fixedly connected to the lower end surface of the limit seat (8), a hydraulic cylinder (6) is installed on one side of the traveling frame (1), a mounting groove (4) is provided on the upper end surface of the testing platform (3), and a material rack (5) is rotatably connected inside the mounting groove (4); The sampling tube (12) includes a connecting sleeve (19), a bearing (20) is installed inside the connecting sleeve (19), a honeycomb mesh (18) is arranged outside the connecting sleeve (19), and the honeycomb mesh (18) is wrapped with a rubber sleeve (17); The side adjacent to the rubber sleeve (17) and the connecting sleeve (19) is filled with paraffin wax, and the paraffin wax completely fills the gaps in the honeycomb mesh (18).

2. A mask nose bridge integrity detection device according to claim 1, characterized in that: The output end of the hydraulic cylinder (6) is fixedly connected to a group of telescopic rods, and one end of the telescopic rods facing away from the hydraulic cylinder (6) passes through the traveling frame (1) and is fixedly connected to one side of the sampling mechanism (2).

3. A mask nose bridge integrity detection device according to claim 1, characterized in that: The detection system is in communication with the camera (15), and comprises a data receiving module, a controller, a data processing module and a display screen. The data receiving module is used to receive images captured by the camera (15), the controller controls the entire detection system, the data processing module is used to analyze and process the images received by the data receiving module, and the display screen is used to display the analysis and processing results of the data processing module.

4. A mask nose bridge integrity detection device according to claim 1, characterized in that: There are two groups of semiconductor refrigeration plates (10) spaced apart on both sides of the sampling cylinder (12), and the semiconductor refrigeration plates (10) are located on the lower part of the sampling cylinder (12) and adjacent to the camera (15).

5. A mask nose bridge integrity detection device according to claim 4, characterized in that: The sampling tube (12) is tangent to the upper end surface of the detection platform (3), and the smoother (11) is framed outside the sampling tube (12). The smoother (11) includes a smoothing plate and two groups of connecting plates. The smoothing plate is fixedly connected to the side end surface of the connecting shaft (16) through the two groups of connecting plates, and the smoothing plate is in contact with the outside of the sampling tube (12).

6. A mask nose bridge integrity detection device according to claim 1, characterized in that: The heating cover (13) covers the upper side of the sampling tube (12) facing away from the camera (15), and a heating plate is provided inside the heating cover (13).

7. A mask nose bridge integrity detection device according to claim 1, characterized in that: The material rack (5) includes a stacking plate (21), a receiving groove (25) is provided at the bottom of one side of the stacking plate (21), the inner wall of the receiving groove (25) is rotatably connected to a holding plate (23), and the side of the holding plate (23) facing away from the receiving groove (25) is rotatably connected to two groups of limiting rods (22).

8. A mask nose bridge integrity detection device according to claim 7, characterized in that: The size of the holding plate (23) is adapted to the receiving groove (25), and the distance between the two groups of limiting rods (22) on the opposite side is equal to the width of the stacking plate (21).

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