Full-automatic platinum loading capacity analysis device
The design of a fully automated platinum content analysis device has solved the problem of detection errors caused by dust accumulation during the transportation of metal coatings, and has enabled accurate detection of platinum content.
Patent Information
- Application Number
- CN202511283073.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2025-11-14
AI Technical Summary
In existing technologies, dust accumulates on the surface of the metal coating during the process of transporting it to the testing device, leading to missing and incorrect test data and affecting the accurate detection of platinum content.
A fully automated platinum loading analysis device was designed, comprising a frame, rollers, a detection platform, a rotating cylinder, a brush plate, and a beating component. The brush plate cleans the dust on the surface of the metal coating, and the beating component cleans the brush bristles to ensure their cleanliness.
It effectively removes dust from the surface of the metal coating, improves the accuracy and consistency of the test, and ensures the accurate detection of platinum content.
Smart Images
Figure CN120948168A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metal coating testing technology, and in particular to a fully automated platinum loading analysis device. Background Technology
[0002] The determination of platinum loading in metal coatings is a crucial step in evaluating the performance, cost control, and production consistency of catalytic materials (such as fuel cell catalysts and automotive exhaust purification catalysts). As a high-value precious metal, platinum loading directly affects the catalytic activity, stability, and economics of the material; therefore, accurate and reliable detection methods are needed. Platinum loading analysis devices can be used to accurately detect the platinum content in metal coatings.
[0003] X-ray fluorescence spectroscopy is commonly used to detect metal coatings. The detection device moves along the surface of the metal coating and emits X-rays. The sample is excited by the X-rays, and platinum atoms emit characteristic fluorescence. The fluorescence intensity is proportional to the loading, thus the content of platinum in the metal coating can be obtained. However, dust accumulates on the surface of the metal coating during transportation to the detection device. Dust can obscure the coating surface, leading to missing local detection data. It can also adsorb X-rays / laser, resulting in errors in the quantitative detection of elements. Summary of the Invention
[0004] Therefore, it is necessary to provide a fully automated platinum loading analysis device that can clean the metal coating before testing, in order to address the above-mentioned technical problems.
[0005] The present invention provides a fully automated platinum loading analysis device, comprising a frame and a transverse through-slot formed on the frame, and further comprising: A metal coating is movably disposed within the through groove; The roller is axially symmetrically mounted inside the frame and movably abuts against the bottom of the metal coating. The testing platform is mounted inside the frame, located below the metal coating. A fixing cylinder is fixedly installed on one side of the frame; A rotating cylinder is rotatably installed inside the fixed cylinder; The slots are arranged in a ring array on the outside of the rotating cylinder, and multiple slots are provided. The movable frame is movably installed inside the slot. The movable rod has one end that extends through the top of the movable frame and the other end that extends through the inner wall of the slot. The brush plate is fixedly installed at the end of the movable rod away from the moving frame and is in movable contact with the bottom of the metal coating. The beating component is located inside the fixed cylinder and is used to beat and clean the bristles of the brush plate.
[0006] In one embodiment, the tapping assembly includes a horizontal plate, which is fixedly installed inside the fixed cylinder. A tapping plate is rotatably mounted on the horizontal plate, and the tapping plate is in active contact with the bristles of the brush plate. A movable plate is rotatably connected to the top of the tapping plate, and a rotating plate is rotatably connected to the end of the movable plate away from the tapping plate. The rotating plate is rotatably connected to the horizontal plate.
[0007] In one embodiment, a rotating rod is movably disposed through the horizontal plate, and the end of the rotating plate away from the movable plate is fixedly sleeved on the outside of the rotating rod, while the end of the rotating rod away from the rotating plate is located below the horizontal plate.
[0008] In one embodiment, a round rod is fixedly provided at one end of the rotating cylinder, and a vertical rod is vertically rotatably provided inside the fixed cylinder. The top of the vertical rod and the round rod are driven by bevel gear meshing, and the bottom of the vertical rod and the end of the rotating rod are connected by belt drive.
[0009] In one embodiment, a top rod is fixedly connected to the bottom of the movable frame, and the top of the movable frame is connected to the inner wall of the slot by a positioning spring.
[0010] In one embodiment, a cylinder is movably disposed inside the rotating cylinder, one end of the cylinder is fixedly connected to the inner wall of the fixed cylinder, a ring is fixedly sleeved on the outer side of the cylinder, and a plurality of protrusions are arranged in a circular array on the outer side of the ring, the protrusions being connected end to end, and the end of the top rod away from the moving frame is slidably embedded and connected to the protrusion.
[0011] In one embodiment, the protrusion is provided on the outer side of the lower semicircle of the ring, while the protrusion is not provided on the outer side of the upper semicircle.
[0012] In one embodiment, the end of the movable rod away from the brush plate is located inside the moving frame and a disc is fixedly provided at its end. The disc is connected to the inner wall of the top of the moving frame by a return spring, which is movably sleeved on the outside of the movable rod.
[0013] In one embodiment, the movable frame is rotatably mounted with a cylinder below the disk, and a rotating disk is fixedly mounted on the top of the cylinder. The disk has multiple grooves arranged in a ring array at one end facing the rotating disk, and multiple spheres are arranged in a ring array at one end facing the disk. The spheres movably abut against the grooves.
[0014] In one embodiment, a vertical groove is provided on one side of the movable frame, and a limiting rod is fixedly provided on the inner wall of the groove. The limiting rod is slidably connected to the vertical groove. A curved groove is provided on the outer side of the cylinder, and one end of the limiting rod is slidably fitted with the curved groove.
[0015] The aforementioned fully automatic platinum loading analysis device, through a tapping component, uses a tapping plate to reciprocate and clean the bristles of a brush plate, ensuring the cleanliness of the brush plate and further improving the cleaning quality of the metal coating; the combination of a top rod and a protrusion enables the brush plate to move up and down reciprocally, allowing the tapping plate to clean the brush plate more thoroughly; the combination of a ball and a groove enables the brush plate to vibrate, accelerating the removal of dust from the bristles and ensuring the cleanliness of the metal coating. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the frame in this invention; Figure 3 This is a schematic diagram of the structure of the fixed cylinder in this invention; Figure 4 This is a schematic diagram of the internal structure of the fixed cylinder in this invention; Figure 5 for Figure 4 Enlarged diagram of part A in the middle; Figure 6 This is a schematic diagram of the internal structure of the rotating cylinder in this invention; Figure 7 for Figure 6 Enlarged diagram of section B; Figure 8 This is a schematic diagram of the positioning spring in this invention; Figure 9 This is a schematic diagram of the internal structure of the movable frame in this invention; Figure 10 This is a schematic diagram of the structure of the sphere in this invention.
[0018] Figure label: 1. Frame; 101. Through groove; 2. Metal coating; 3. Roller; 4. Detection platform; 5. Fixed cylinder; 6. Rotating cylinder; 61. Groove; 7. Moving frame; 71. Vertical groove; 8. Beating assembly; 81. Horizontal plate; 82. Beating plate; 83. Movable plate; 84. Rotating plate; 85. Rotating rod; 9. Movable rod; 10. Brush plate; 11. Round rod; 12. Vertical rod; 13. Bevel gear; 14. Belt; 15. Top rod; 16. Cylinder; 17. Ring; 18. Protrusion; 19. Disc; 191. Groove; 20. Return spring; 21. Cylinder; 211. Curved groove; 22. Rotating disk; 23. Sphere; 24. Limiting rod; 25. Positioning spring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0021] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0024] The following is combined with Figures 1-10 This invention describes a fully automated platinum loading analysis device.
[0025] like Figures 1-5 As shown, in one embodiment, a fully automated platinum loading analysis device includes a frame 1 and a through slot 101 laterally formed in the frame 1, and further includes: Metal coating 2 is movably disposed within the through groove 101; Roller 3 is axially symmetrically mounted inside frame 1 and movably abuts against the bottom of metal coating 2; The detection platform 4 is mounted inside the frame 1, located below the metal coating 2; The fixing cylinder 5 is fixedly installed on one side of the frame 1; The rotating cylinder 6 is rotatably installed inside the fixed cylinder 5; The slot 61 is arranged in a ring array on the outside of the rotating cylinder 6, and multiple slots are provided. The movable frame 7 is movably installed inside the slot 61; The movable rod 9 has one end that moves through the top of the movable frame 7 and the other end that moves through the inner wall of the slot 61. The brush plate 10 is fixedly installed on the end of the movable rod 9 away from the movable frame 7, and is in movable contact with the bottom of the metal coating 2; The tapping component 8 is located inside the fixed cylinder 5 and taps and cleans the bristles of the brush plate 10.
[0026] Specifically, conveying devices for the metal coating 2 are placed at both ends of the frame 1. One conveying device transports the metal coating 2 into the frame 1 through one end of the through channel 101, first passing through roller 3 on one side, then through roller 3 on the other side, and finally outputting it through the other end of the through channel 101 into the other conveying device. When the metal coating 2 is inside the frame 1, the detection platform 4 is located below the metal coating 2 and can move laterally to scan and detect the surface of the metal coating 2. The detection results can be transmitted to an electronic instrument at the top of the frame 1 for display. Before the metal coating 2 enters the frame 1 from one side of the through channel 101, the rotation is started. The motor of cylinder 6 rotates within the fixed cylinder 5, causing the moving frame 7, slot 61, movable rod 9, and brush plate 10 to rotate synchronously. When the brush plate 10 rotates to its highest point, the combing part will adhere to the surface of the metal coating 2, thereby removing dust and other impurities adhering to its surface. After cleaning the metal coating 2 during the rotation of the brush plate 10, some dust will also adhere to its own bristles. When a part of the brush plate 10 rotates to the lower position with the rotating cylinder 6, the brush bristles of this part of the brush plate 10 are beaten and cleaned by the beating component 8, so that the dust adhering to the bristles falls off, ensuring the cleanliness of the bristles.
[0027] See Figure 4 and Figure 5 As shown, in this embodiment, the tapping assembly 8 includes a horizontal plate 81, which is fixedly installed inside the fixed cylinder 5. A tapping plate 82 is rotatably installed on the horizontal plate 81. The tapping plate 82 is in active contact with the bristles of the brush plate 10. A movable plate 83 is rotatably connected to the top of the tapping plate 82. A rotating plate 84 is rotatably connected to the end of the movable plate 83 away from the tapping plate 82. The rotating plate 84 is rotatably connected to the horizontal plate 81.
[0028] Specifically, rotating the rotating plate 84 causes the movable plate 83 to rotate, which in turn causes the tapping plate 82 to swing back and forth. During the swinging process, the tapping plate 82 taps and cleans the bristles of the lower brush plate 10, causing the dust and other impurities adsorbed on it to fall off, ensuring the cleanliness of the brush plate 10. Subsequently, the cleaned brush plate 10 rotates back to the area below the metal coating 2 for cleaning as the rotating cylinder 6 rotates, thus ensuring the cleaning effect on the metal coating 2. The horizontal plate 81 provides support for the rotating plate 84 and the tapping plate 82.
[0029] See Figure 5 As shown, in this embodiment, a rotating rod 85 is movably disposed through the horizontal plate 81, and the end of the rotating plate 84 away from the movable plate 83 is fixedly sleeved on the outside of the rotating rod 85, while the end of the rotating rod 85 away from the rotating plate 84 is located below the horizontal plate 81.
[0030] Specifically, rotating the rotating rod 85 will cause the rotating plate 84 to rotate, and the rotating plate 84 will cause the movable plate 83 to rotate, thereby realizing the reciprocating swing of the patting plate 82, which can alternately clean the brush plate 10 and ensure the cleanliness of the bristles.
[0031] See Figure 4 and Figure 5 As shown, in this embodiment, a round rod 11 is fixedly installed at one end of the rotating cylinder 6, and a vertical rod 12 is vertically rotatably installed inside the fixed cylinder 5. The top of the vertical rod 12 is meshed with the round rod 11 through a bevel gear 13, and the bottom of the vertical rod 12 is connected to the end of the rotating rod 85 through a belt 14.
[0032] Specifically, the rotation of the rotating cylinder 6 will drive the round rod 11 to rotate synchronously. Through the transmission relationship of the bevel gear 13, the vertical rod 12 can also rotate synchronously. The rotation of the vertical rod 12 can drive the rotating rod 85 to rotate synchronously through the transmission of the belt 14. The rotation of the rotating rod 85 can realize the reciprocating swing of the slapping plate 82 to clean the brush plate 10. This step can realize that while the rotating cylinder 6 drives the brush plate 10 to rotate alternately to clean the metal coating 2, the slapping plate 82 can also clean the brush plate 10 synchronously. The operation is convenient and quick.
[0033] See Figures 6-8 As shown, in this embodiment, a top rod 15 is fixedly connected to the bottom of the movable frame 7, and the top of the movable frame 7 is connected to the inner wall of the slot 61 by a positioning spring 25.
[0034] Specifically, when the rotating cylinder 6 drives the moving frame 7, the movable rod 9, and the brush plate 10 to rotate synchronously, the top rod 15 can move up and down relative to the slot 61. The up and down movement of the top rod 15 along the slot 61 will cause the moving frame 7, the movable rod 9, and the brush plate 10 to move up and down. During this process, the positioning spring 25 will deform. When the brush plate 10 finishes cleaning the metal coating 2 and rotates downwards in a semi-circle, the up and down movement of the top rod 15 will cause the brush plate 10 to vibrate, which can accelerate the removal of impurities from the bristles. When the brush plate 10 is at a low position, the upward movement of the top rod 15 relative to the slot 61 will make the contact area between the bristles of the brush plate 10 and the tapping plate 82 larger. The tapping plate 82 can tap and clean more bristles, resulting in a better cleaning effect.
[0035] See Figure 6 and Figure 7 As shown, in this embodiment, a cylinder 16 is movably arranged inside the rotating cylinder 6. One end of the cylinder 16 is fixedly connected to the inner wall of the fixed cylinder 5. A ring 17 is fixedly sleeved on the outside of the cylinder 16. Multiple protrusions 18 are arranged in a ring array on the outside of the ring 17. The protrusions 18 are connected end to end. The end of the top rod 15 away from the moving frame 7 is slidably embedded and connected to the protrusions 18.
[0036] Specifically, the rotation of the rotating cylinder 6 drives the top rod 15, the moving frame 7, the movable rod 9, and the brush plate 10 to rotate synchronously. During the rotation of the top rod 15, one end slides along the multiple protrusions 18 set in the ring 17. Under the limiting action of the protrusions 18, the top rod 15 will move up and down relative to the slot 61, thereby realizing the up and down reciprocating movement of the brush plate 10, which facilitates the tapping plate 82 to perform deep cleaning on the brush plate 10. The cylinder 16 provides support for the ring 17.
[0037] See Figure 7 As shown, in this embodiment, the protrusion 18 is provided on the outer side of the lower semicircle of the ring 17, and the protrusion 18 is not provided on the outer side of the upper semicircle.
[0038] Specifically, the protrusion 18 is only located on the outer side of the lower semicircle of the ring 17, while the upper semicircle is located below the metal coating 2. If the upper semicircle is also provided with the protrusion 18, the push rod 15 will also move up and down relative to the slot 61 due to the action of the protrusion 18 during the rotation along the upper semicircle. The corresponding brush plate 10 will also move up and down, and the bristles will be in too close contact with the surface of the metal coating 2. If the bristles are in too close contact, the root of the bristles or the hardened bristle tip will generate "local compressive stress" on the coating surface. When the stress exceeds the yield strength of the metal coating 2, it will form visible scratches and indentations, and may even cause the metal coating 2 to fall off locally (although hard coatings such as stainless steel coatings are highly scratch-resistant, excessive friction will damage the surface passivation film and increase the risk of subsequent corrosion). Secondly, if the bristles are in too close contact, there is a possibility that the metal coating 2 will be shifted when the brush plate 10 rotates, which will also affect the detection accuracy of the detection platform 4 for platinum.
[0039] See Figure 9 and Figure 10 As shown, in this embodiment, the end of the movable rod 9 away from the brush plate 10 is located inside the moving frame 7 and a disc 19 is fixedly provided at its end. The disc 19 is connected to the inner wall of the top of the moving frame 7 by a return spring 20, which is movably sleeved on the outside of the movable rod 9.
[0040] Specifically, after the brush plate 10 has finished cleaning the metal coating 2, as the rotating cylinder 6 rotates to the lower semicircular side, the top rod 15 abuts against the protrusion 18, realizing the up-and-down reciprocating movement of the top rod 15, the moving frame 7, the movable rod 9, and the brush plate 10. During this process, the disc 19 moves slightly up and down relative to the moving frame 7. The movement of the disc 19 will realize the up-and-down movement of the movable rod 9 and the brush plate 10. The return spring 20 will deform. With the help of the characteristics of the spring, the brush plate 10 will vibrate, accelerating the removal of dust and other impurities.
[0041] See Figures 8-10As shown, in this embodiment, the movable frame 7 is rotatably arranged with a cylinder 21 below the disc 19, and a rotating disk 22 is fixedly arranged on the top of the cylinder 21. The disc 19 has a plurality of grooves 191 arranged in a ring array near the end of the rotating disk 22, and a plurality of spheres 23 are arranged in a ring array near the end of the rotating disk 22 facing the disc 19. The spheres 23 are in movable contact with the grooves 191.
[0042] Specifically, when the brush plate 10 needs to be cleaned, the cylinder 21 is rotated. The rotation of the cylinder 21 drives the rotating disk 22 to rotate, and the rotation of the rotating disk 22 drives the ball 23 to rotate. During the rotation, the ball 23 alternately abuts against the groove 191. The movement of the ball 23 from the part of the disk 19 without the groove 191 to the groove 191 and from the groove 191 will cause a slight displacement of the disk 19, thereby causing the disk 19, the movable rod 9 and the brush plate 10 to vibrate, accelerating the dust removal.
[0043] See Figures 8-10 As shown, in this embodiment, a vertical groove 71 is provided on one side of the movable frame 7, and a limiting rod 24 is fixedly provided on the inner wall of the groove 61. The limiting rod 24 is slidably connected to the vertical groove 71. A curved groove 211 is provided on the outer side of the cylinder 21, and one end of the limiting rod 24 is slidably attached to the curved groove 211.
[0044] Specifically, after the brush plate 10 has finished cleaning the metal coating 2, as the rotating cylinder 6 rotates to the lower semicircular side, the top rod 15, under the limiting action of the protrusion 18, will realize the reciprocating movement of the moving frame 7, the movable rod 9, and the brush plate 10. During the reciprocating movement of the moving frame 7 relative to the groove 191, it will drive the cylinder 21 to move synchronously together. The limiting rod 24 slides relative to the curved groove 211, thereby realizing the rotation of the cylinder 21. The rotation of the cylinder 21 can make the brush plate 10 vibrate and accelerate the dust removal. The vertical groove 71 can prevent the moving frame 7 from colliding with the limiting rod 24 during the up and down movement.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.
[0046] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.
Claims
1. A fully automated platinum loading analysis device, comprising a frame and a transverse through-slot formed in the frame, characterized in that, Also includes: A metal coating is movably disposed within the through groove; The roller is axially symmetrically mounted inside the frame and movably abuts against the bottom of the metal coating. The testing platform is mounted inside the frame, located below the metal coating. A fixing cylinder is fixedly installed on one side of the frame; A rotating cylinder is rotatably installed inside the fixed cylinder; The slots are arranged in a ring array on the outside of the rotating cylinder, and multiple slots are provided. The movable frame is movably installed inside the slot. The movable rod has one end that extends through the top of the movable frame and the other end that extends through the inner wall of the slot. The brush plate is fixedly installed at the end of the movable rod away from the moving frame and is in movable contact with the bottom of the metal coating. The beating component is located inside the fixed cylinder and is used to beat and clean the bristles of the brush plate.
2. The fully automated platinum loading analysis device according to claim 1, characterized in that, The tapping assembly includes a horizontal plate, which is fixedly installed inside the fixed cylinder. A tapping plate is rotatably installed on the horizontal plate. The tapping plate is in active contact with the bristles of the brush plate. A movable plate is rotatably connected to the top of the tapping plate. A rotating plate is rotatably connected to the end of the movable plate away from the tapping plate. The rotating plate is rotatably connected to the horizontal plate.
3. The fully automated platinum loading analysis device according to claim 2, characterized in that, A rotating rod is movably connected through the horizontal plate. The end of the rotating plate away from the movable plate is fixedly sleeved on the outside of the rotating rod, and the end of the rotating rod away from the rotating plate is located below the horizontal plate.
4. The fully automated platinum loading analysis device according to claim 3, characterized in that, A round rod is fixedly installed at one end of the rotating cylinder, and a vertical rod is vertically rotatably installed inside the fixed cylinder. The top of the vertical rod is connected to the round rod by bevel gear meshing, and the bottom of the vertical rod is connected to the end of the rotating rod by belt drive.
5. The fully automated platinum loading analysis device according to claim 1, characterized in that, A top rod is fixedly connected to the bottom of the movable frame, and the top of the movable frame is connected to the inner wall of the slot by a positioning spring.
6. The fully automated platinum loading analysis device according to claim 5, characterized in that, A cylindrical tube is movably arranged inside the rotating cylinder. One end of the cylindrical tube is fixedly connected to the inner wall of the fixed cylinder. A ring is fixedly sleeved on the outside of the cylindrical tube. Multiple protrusions are arranged in a circular array on the outside of the ring. The protrusions are connected end to end. The end of the top rod away from the moving frame is slidably embedded and connected to the protrusion.
7. The fully automated platinum loading analysis device according to claim 6, characterized in that, The protrusion is located on the outer side of the lower semicircle of the ring, while the protrusion is not located on the outer side of the upper semicircle.
8. The fully automated platinum loading analysis device according to claim 5, characterized in that, The end of the movable rod away from the brush plate is located inside the moving frame and a disc is fixedly installed at its end. The disc is connected to the inner wall of the top of the moving frame by a return spring, which is movably sleeved on the outside of the movable rod.
9. The fully automated platinum loading analysis device according to claim 8, characterized in that, The movable frame is rotatably mounted with a cylinder below the disk. A rotating disk is fixedly mounted on the top of the cylinder. The disk has multiple grooves arranged in a ring array at one end facing the rotating disk. Multiple spheres are arranged in a ring array at one end facing the disk. The spheres movably abut against the grooves.
10. The fully automated platinum loading analysis device according to claim 9, characterized in that, A vertical groove is provided on one side of the movable frame, and a limiting rod is fixedly provided on the inner wall of the groove. The limiting rod is slidably connected to the vertical groove. A curved groove is provided on the outer side of the cylinder, and one end of the limiting rod is slidably fitted with the curved groove.