Detection device

Abstract

The present invention relates to the field of polymer testing technology, and discloses a detection device, including a cavity component, a flow-pushing component, a frame component, a driving component, and a camera; the cavity component includes a light-transmitting plate and a back plate; a flow channel is provided between the light-transmitting plate and the back plate; the flow-pushing component includes an edge strip and a plug plate; the edge strip blocks both sides of the flow channel, the plug plate blocks the flow channel, the cavity component moves relative to the flow-pushing component, so that the plug plate moves relative to the flow channel; the frame component is used to fix the light-transmitting plate and the back plate on the flow-pushing component; the driving component drives the cavity component to move relative to the flow-pushing component; the camera and the plug plate are set in corresponding positions. By sliding the flow-pushing component between the light-transmitting plate and the back plate, the camera and the plug plate are set in corresponding positions, and the driving component drives the cavity component to move relative to the flow-pushing component, the fluid polymer group in the flow channel moves in the flow channel, and the camera is able to detect and analyze the front position of the fluid polymer in the flow channel all the time.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer testing, in particular to a detection device. Background Art

[0002] Polymers, also known as high-molecular compounds, generally refer to compounds with relative molecular masses ranging from several thousand to several million. Most polymer compounds are mixtures of homologues with different relative molecular masses. Polymer compounds are composed of thousands of atoms linked together by covalent bonds. Although their relative molecular masses are large, they are connected in simple structural units and in a repetitive manner. Polymer materials have non-Newtonian fluid properties, so they exhibit many phenomena during the injection molding process that are difficult to fully predict scientifically, such as tiger stripes and flow instability. If these phenomena can be accurately predicted, it will greatly improve the efficiency of mold design and reduce the defect rate of mold design, thereby reducing the overall cost of polymer injection molding and improving its efficiency. Therefore, polymer testing is very important.

[0003] Existing polymer testing methods primarily involve creating two colors of the same polymer, simultaneously injection-molding both colors, and analyzing the samples after solidification by cutting them off. Alternatively, colorants are added to the polymer during the injection molding process and the changes in the colorant's shape are captured to determine changes in polymer flow. However, neither method can accurately measure the position of the polymer front, as the polymer front is the end surface where the fluid polymer contacts the air. Detecting and analyzing the polymer front can more accurately determine changes in the flow field of the fluid polymer during the injection molding process. Summary of the Invention

[0004] Based on this, it is necessary to provide a detection device that can detect and analyze the front position of the fluid polymer.

[0005] The present invention provides a detection device, comprising:

[0006] The cavity assembly includes a light-transmitting plate and a back plate arranged in parallel and spaced apart; a flow channel is provided between the light-transmitting plate and the back plate;

[0007] A flow-pushing assembly is slidably arranged in the cavity assembly; the flow-pushing assembly includes edge strips relatively arranged on both sides of the cavity assembly and plug plates connecting the edge strips on both sides; the edge strips block both sides of the flow channel, the plug plates block the flow channel, the edge strips and the plug plates are relatively fixed, and the cavity assembly moves relative to the flow-pushing assembly, so that the plug plates move relative to the flow channel;

[0008] A frame assembly is connected to the cavity assembly, the frame assembly is arranged outside the cavity assembly, and the frame assembly is used to fix the light-transmitting plate and the back plate on the flow-pushing assembly;

[0009] A driving assembly connected to the frame assembly, the driving assembly drives the cavity assembly to move relative to the flow-pushing assembly; and

[0010] The camera is arranged on a side of the light-transmitting plate away from the back plate, and the camera corresponds to the setting position of the blocking plate.

[0011] In one embodiment, the edge banding includes an extension portion and a sealing portion connected to the extension portion; the extension portion is arranged in a straight plate-like structure, and the sealing portion is arranged to protrude from both sides of the extension portion in a mutually diverging manner.

[0012] In one embodiment, sealing grooves are provided on both sides of the light-transmitting plate and the back plate, and the sealing parts are correspondingly inserted into the sealing grooves.

[0013] In one embodiment, the plug plate is arranged in a straight plate structure, a positioning groove is provided on the plug plate, and the end of the edge banding strip is correspondingly inserted into the positioning groove; hook blocks are provided on both sides of the positioning groove, and a clamping groove is provided on both sides of the end of the edge banding strip, and the hook blocks are correspondingly hooked in the clamping groove.

[0014] In one embodiment, the frame assembly includes a first plywood, a second plywood, and a fastener connecting the first plywood and the second plywood; the first plywood is pressed on the side of the light-transmitting plate away from the back plate, and the second plywood is pressed on the side of the back plate away from the light-transmitting plate.

[0015] In one embodiment, an observation port is provided on the first splint.

[0016] In one embodiment, the back plate is a light-transmitting member, and an observation port is correspondingly provided on the second clamping plate.

[0017] In one embodiment, the driving assembly includes a connecting seat and a push-pull rod connected to the connecting seat; the connecting seat connects the first clamping plate and the second clamping plate, and the push-pull rod extends from the connecting seat in a direction away from the frame assembly.

[0018] In one embodiment, a platform is provided at one end of the first clamping plate and the second clamping plate, the connecting seat is in contact with the platform, and the platform is perpendicular to the arrangement direction of the first clamping plate.

[0019] In one embodiment, the detection device further includes a light source; the light source is arranged on a side of the light-transmitting plate away from the back plate, the plug plate and the camera element are relatively fixed, and the camera element and the light source are arranged in parallel.

[0020] Compared with the prior art, the above detection device has the following advantages:

[0021] By sliding a flow-pushing component between the light-transmitting plate and the back plate, the camera and the plug plate are set correspondingly, and the driving component drives the cavity component to move relative to the flow-pushing component, so that the fluid polymer group in the flow channel moves in the flow channel. Since the positions of the plug plate and the camera do not change, the camera can always detect and analyze the front position of the moving fluid polymer in the flow channel, thereby solving the experimental purpose of detecting the front position of the polymer. The structure of the device is simple, which is conducive to market promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of a detection device according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the detection device;

[0024] Figure 3 for Figure 1 A schematic cross-sectional view of the detection device;

[0025] Figure 4 for Figure 2 Enlarged schematic diagram of the circled part A.

[0026] The meanings of the numbers in the accompanying drawings are:

[0027] 100. Detection device;

[0028] 10. Cavity assembly; 11. Light-transmitting plate; 12. Back plate; 15. Runner; 16. Sealing groove;

[0029] 20. Flow-pushing assembly; 21. Edge banding; 22. Extension; 23. Sealing portion; 24. Slot; 25. Stopper; 26. Positioning slot; 27. Hook block;

[0030] 30. Frame assembly; 31. First clamping plate; 32. Second clamping plate; 33. Fastener; 35. Observation port; 36. Platform;

[0031] 40. Driving assembly; 41. Connecting seat; 42. Push-pull rod;

[0032] 50. Camera;

[0033] 60. Light source components. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] 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", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships 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 should not be understood as limiting the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0040] See also Figures 1 to 4 , a detection device 100 according to one embodiment of the present invention, includes a cavity assembly 10, a flow-pushing assembly 20 slidably disposed within the cavity assembly 10, a frame assembly 30 connected to the cavity assembly 10, a drive assembly 40 connected to the frame assembly 30, and a camera 50. The cavity assembly 10 includes a light-transmitting plate 11 and a back plate 12 arranged in parallel and spaced relation. A flow channel 15 is disposed between the light-transmitting plate 11 and the back plate 12 for accommodating a polymer in a fluid state. The flow-pushing assembly 20 includes edge strips 21 relatively arranged on both sides of the cavity assembly 10 and plug plates 25 connecting the edge strips 21 on both sides; the edge strips 21 block both sides of the flow channel 15, and the plug plates 25 block the flow channel 15. The edge strips 21 and the plug plates 25 are relatively fixed, and the edge strips 21 or the plug plates 25 are connected and fixed to the outside world. The cavity assembly 10 moves relative to the flow-pushing assembly 20 to move the plug plates 25 relative to the flow channel 15. When the cavity assembly 10 moves relative to the flow-pushing assembly 20, the plug plates 25 move within the flow channel 15 to push the polymer in a fluid state to move within the flow channel 15. The frame assembly 30 is arranged on the outside of the cavity assembly 10. The frame assembly 30 is used to fix the light-transmitting plate 11 and the back plate 12 on the flow-pushing assembly 20 to prevent the cavity assembly 10 from separating from the flow-pushing assembly 20. The driving component 40 drives the cavity component 10 to move relative to the flow-pushing component 20; the camera element 50 is arranged on the side of the light-transmitting plate 11 away from the back plate 12, and the camera element 50 corresponds to the setting position of the plug plate 25. The camera element 50 is used to shoot the fluid state polymer to realize the detection and analysis of the fluid state polymer.

[0041] The above-mentioned detection device 100 slides the flow-pushing component 20 between the light-transmitting plate 11 and the back plate 12, and sets the camera 50 and the plug plate 25 in correspondence. The driving component 40 drives the cavity component 10 to move relative to the flow-pushing component 20, so that the fluid polymer group in the flow channel 15 moves in the flow channel 15. Since the positions of the plug plate 25 and the camera 50 do not change, the camera 50 can always detect and analyze the front position of the moving fluid polymer in the flow channel 15 (the front position of the fluid polymer here refers to the contact surface position of the fluid polymer with the air in the direction of travel when the fluid polymer moves in the flow channel 15). Since the front position is the contact position between the fluid polymer and the air, it presents a "fountain flow" characteristic during the movement of the fluid polymer. Therefore, by detecting and analyzing the front position, the flow field changes during the injection molding process of the polymer material can be more accurately analyzed. The above-mentioned detection device 100 solves the experimental purpose of detecting the front position of the polymer. The structure of the device is simple, which is conducive to market promotion and application.

[0042] Furthermore, the light-transmitting plate 11 is arranged in a rectangular straight plate structure, and the light-transmitting plate 11 is arranged in a vertical direction. The light-transmitting plate 11 is a light-transmitting member to ensure that the flow state of the fluid polymer can be detected and analyzed. The back plate 12 is arranged in a rectangular straight plate structure, and the back plate 12 is parallel to the setting direction of the light-transmitting plate 11. The back plate 12 is spaced apart from the light-transmitting plate 11. The flow channel 15 is correspondingly arranged between the light-transmitting plate 11 and the back plate 12. The flow channel 15 is used to accommodate the fluid polymer, and the flow state of the fluid polymer in the flow channel 15 is observed through the light-transmitting plate 11 to realize the detection of the fluid polymer. In this embodiment, the backlight plate is a light-transmitting member to realize the observation of both sides of the fluid polymer in the flow channel 15, thereby improving the accuracy of the detection and analysis.

[0043] Furthermore, the edge banding 21 is disposed on opposite sides of the flow channel 15 and is used to seal the two sides of the flow channel 15 to prevent the fluid polymer from leaking out of the two sides of the flow channel 15. In this embodiment, the edge banding 21 includes an extension portion 22 and a sealing portion 23 connected to the extension portion 22. The extension portion 22 is arranged in a straight plate structure and is disposed between the light-transmitting plate 11 and the back plate 12. The extension portion 22 is arranged in a vertical direction, and the thickness of the extension portion 22 is equal to the distance between the light-transmitting plate 11 and the back plate 12. The sealing portion 23 is arranged in an elongated strip structure and is disposed on opposite sides of the extension portion 22. The sealing portions 23 are arranged to protrude away from each other from the two sides of the extension portion 22. The sealing portions 23 are used to improve the sealing performance at the joint between the edge banding 21, the light-transmitting plate 11, and the back plate 12, thereby preventing the fluid polymer from leaking. Furthermore, sealing grooves 16 are provided on both sides of the light-transmitting plate 11 and the back plate 12. The sealing grooves 16 are arranged in a long strip-shaped groove structure. The sealing grooves 16 are arranged in a vertical direction. The sealing portion 23 is correspondingly inserted into the sealing grooves 16 to improve the sealing performance and guide the movement of the edge banding strip 21.

[0044] Furthermore, the plug plate 25 is arranged in a rectangular straight plate structure, and is arranged in the horizontal direction. The plug plate 25 is connected and fixed to the outside to ensure that the plug plate 25 moves within the flow channel 15 when the cavity assembly 10 moves. The plug plate 25 is arranged between the light-transmitting plate 11 and the back plate 12, and the plug plate 25 is blocked within the flow channel 15. The thickness of the plug plate 25 is equal to the distance between the light-transmitting plate 11 and the back plate 12 to ensure that the plug plate 25 blocks the flow channel 15. When the plug plate 25 moves along the flow channel 15, it pushes the fluid polymer to achieve the movement of the fluid polymer within the flow channel 15. In this embodiment, a positioning groove 26 is provided on the plug plate 25. The positioning groove 26 is arranged in a rectangular groove structure. The end of the edge banding 21 is correspondingly inserted into the positioning groove 26 to improve the sealing performance of the joint between the plug plate 25 and the edge banding 21. Hooks 27 are provided on either side of the positioning slot 26, extending from the two sides of the positioning slot 26. The end of the edge banding 21 is provided with two locking slots 24, and the hooks 27 are correspondingly hooked into the locking slots 24 to secure the edge banding 21 to the plug plate 25. Furthermore, the plug plate 25 is arranged perpendicular to the direction in which the edge banding 21 is arranged, and the flow-injecting assembly 20 is arranged in a U-shaped structure.

[0045] Furthermore, the frame assembly 30 includes a first clamping plate 31, a second clamping plate 32, and a fastener 33 connecting the first clamping plate 31 and the second clamping plate 32. The first clamping plate 31 is arranged in a rectangular straight plate structure and is pressed against the side of the light-transmitting plate 11 away from the back plate 12. The second clamping plate 32 is arranged in a rectangular straight plate structure and is parallel to the arrangement direction of the first clamping plate 31. The second clamping plate 32 is pressed against the side of the back plate 12 away from the light-transmitting plate 11. The fastener 33 is arranged in a cylindrical structure and passes through the first clamping plate 31, the light-transmitting plate 11, the back plate 12, and the second clamping plate 32 in sequence. The two ends of the fastener 33 respectively abut against the first clamping plate 31 and the second clamping plate 32 to clamp and fix the light-transmitting plate 11 and the back plate 12. In this embodiment, four fasteners 33 are provided, one at each corner of the rectangular first clamping plate 31, to ensure stable fixation of the cavity assembly 10. Furthermore, observation ports 35 are provided on each of the first clamping plate 31 and the second clamping plate 32. These observation ports 35 are rectangular through-holes extending through both sides of the first clamping plate 31 and the second clamping plate 32, allowing for observation and analysis of the fluid polymer within the flow channel 15.

[0046] Furthermore, the drive assembly 40 includes a connecting seat 41 and a push-pull rod 42 connected to the connecting seat 41. The connecting seat 41 is arranged horizontally, connecting the first clamping plate 31 and the second clamping plate 32. The connecting seat 41 is fixed to the top of the frame assembly 30 and is arranged between the edge banding strips 21 on both sides. The push-pull rod 42 is arranged in a cylindrical structure and arranged vertically. The push-pull rod 42 extends from the connecting seat 41 away from the frame assembly 30. The push-pull rod 42 drives the frame assembly 30 to move up and down, thereby driving the cavity assembly 10 fixed in the frame assembly 30 to move up and down. It is understandable that the push-pull rod 42 can be grasped by a person to manually control the movement of the cavity assembly 10. In another embodiment, the push-pull rod 42 is connected to an external lifting device to realize automatic movement control of the cavity assembly 10 through the lifting device. The lifting device is one of a cylinder, a hydraulic cylinder, a screw mechanism or a gear rack mechanism, which can ensure that the driving force for the cavity assembly 10 to move up and down relative to the flow assembly 20 can be provided.

[0047] Furthermore, a platform 36 is provided at one end of the first clamping plate 31 and the second clamping plate 32. The platform 36 is arranged in the horizontal direction. The platform 36 is correspondingly arranged at the top end of the first clamping plate 31 and the second clamping plate 32. The platform 36 is perpendicular to the setting direction of the first clamping plate 31. The connecting seat 41 is in contact with the platform 36. The connecting seat 41 and the platform 36 are fixed by bolts. By setting the platform 36, the joint area between the connecting seat 41 and the frame assembly 30 is increased, thereby improving the reliability of the connection between the driving assembly 40 and the frame assembly 30.

[0048] Furthermore, the camera element 50 is arranged on the side of the light-transmitting plate 11 away from the back plate 12. The camera element 50 is fixedly connected to the outside world, and the camera element 50 and the plug plate 25 are relatively fixed to ensure that the detection position of the camera element 50 for the fluid polymer in the flow channel 15 remains unchanged, thereby realizing the detection and analysis of the front position of the fluid polymer.

[0049] Furthermore, the detection device 100 also includes a light source component 60. The light source component 60 is arranged on the side of the light-transmitting plate 11 away from the back plate 12. The light source component 60 is used to increase the brightness of the detection environment, thereby improving the shooting effect of the camera 50 on the fluid polymer, and ensuring the accuracy of the analysis. The light source component 60 and the camera 50 are arranged on the same side of the cavity assembly 10, and the light source component 60 and the camera 50 are arranged in parallel. In this embodiment, the camera 50 is a camera; the light source component 60 is an LED lamp, and the fluid polymer is colorless and transparent. By adding colored tracer particles to the fluid polymer, the motion trajectory of the tracer particles is captured by the camera 50, and the flow field changes at the front position of the fluid polymer are analyzed. The light source component 60 improves the shooting clarity of the tracer particles by the camera 50, ensuring that the detection and analysis are more accurate. In another embodiment, the light source 60 is ultraviolet light. By adding fluorescent particles to the fluid polymer, the light source 60 is irradiated on the fluid polymer, so that the fluorescent particles are visualized and captured by the camera 50, thereby achieving clearer detection of the flow field changes at the front position of the fluid polymer.

[0050] The working process of the present invention is as follows: first, tracer particles are added to the fluid polymer, then the fluid polymer is added to the flow channel 15, the connecting seat 41 is connected and fixed to the frame assembly 30, and the push-pull rod 42 is connected and fixed to the external lifting device to complete the preparation work for the detection. During the detection, the frame assembly 30 is driven to move up and down by the push-pull rod 42, and the frame assembly 30 drives the cavity assembly 10 to move up and down. Since the plug plate 25 is connected and fixed to the outside world, the plug plate 25 moves relative to the flow channel 15 during the movement of the cavity assembly 10, and then drives the fluid polymer to move in the flow channel 15. Due to the gravity of the fluid polymer itself and the fixed position of the plug plate 25, the height position of the fluid polymer remains unchanged, and it only moves relative to the flow channel 15. At the same time, the shooting position of the camera 50 remains unchanged and is aligned with the front position of the fluid polymer, thereby realizing real-time detection of the front position of the fluid polymer in the flow state and detection and analysis of the flow field changes at the front position of the fluid polymer.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A detection device, characterized in that: include: The cavity assembly includes a light-transmitting plate and a back plate that are spaced apart and arranged in parallel; a flow channel is provided between the light-transmitting plate and the back plate; A flow-pushing assembly is slidably arranged in the cavity assembly; the flow-pushing assembly includes edge strips relatively arranged on both sides of the cavity assembly and plug plates connecting the edge strips on both sides; the edge strips block both sides of the flow channel, the plug plates block the flow channel, the edge strips and the plug plates are relatively fixed, and the cavity assembly moves relative to the flow-pushing assembly, so that the plug plates move relative to the flow channel; A frame assembly is connected to the cavity assembly, the frame assembly is arranged outside the cavity assembly, and the frame assembly is used to fix the light-transmitting plate and the back plate on the flow-pushing assembly; A driving assembly connected to the frame assembly, the driving assembly driving the cavity assembly to move relative to the flow-pushing assembly; and The camera is arranged on a side of the light-transmitting plate away from the back plate, and the camera corresponds to the setting position of the blocking plate.

2. The detection device according to claim 1, characterized in that The edge banding strip includes an extension portion and a sealing portion connected to the extension portion; the extension portion is arranged in a straight plate-shaped structure, and the sealing portion is arranged to protrude from both sides of the extension portion in a mutually diverging shape.

3. The detection device according to claim 2, characterized in that Sealing grooves are provided on both sides of the light-transmitting plate and the back plate, and the sealing parts are correspondingly inserted into the sealing grooves.

4. The detection device according to claim 1, characterized in that The plug plate is arranged in a straight plate structure, and a positioning groove is provided on the plug plate, and the end of the edge banding strip is correspondingly inserted into the positioning groove; hook blocks are provided on both sides of the positioning groove, and a clamping groove is provided on both sides of the end of the edge banding strip, and the hook blocks are correspondingly hooked in the clamping groove.

5. The detection device according to claim 1, characterized in that The frame assembly includes a first plywood, a second plywood, and a fastener connecting the first plywood and the second plywood; the first plywood is pressed on the side of the light-transmitting plate away from the back plate, and the second plywood is pressed on the side of the back plate away from the light-transmitting plate.

6. The detection device according to claim 5, characterized in that An observation port is provided on the first clamping plate.

7. The detection device according to claim 6, characterized in that The back plate is a light-transmitting member, and an observation port is correspondingly provided on the second clamping plate.

8. The detection device according to claim 5, characterized in that The driving assembly includes a connecting seat and a push-pull rod connected to the connecting seat; the connecting seat connects the first clamping plate and the second clamping plate, and the push-pull rod extends from the connecting seat in a direction away from the frame assembly.

9. The detection device according to claim 8, characterized in that One end of the first clamping plate and the second clamping plate is provided with a platform, the connecting seat is in contact with the platform, and the platform is perpendicular to the arrangement direction of the first clamping plate.

10. The detection device according to claim 1, characterized in that: The detection device further includes a light source component; the light source component is arranged on a side of the light-transmitting plate away from the back plate, the blocking plate and the camera component are relatively fixed, and the camera component and the light source component are arranged in parallel.

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