Sample cleaning device

Abstract

The invention discloses a sample wafer cleaning device, which comprises a shell, a cleaning device, a driving device and a driving device, wherein the shell is internally provided with a cavity; at least part of the clamping mechanism is movably arranged in the cavity, and the clamping mechanism is used for clamping the sample tray; the pressing mechanism is arranged in the cavity, the pressing mechanism comprises a movable part which can be movably arranged in the direction close to and away from the clamping mechanism, a pressing assembly is arranged on the side, facing the clamping mechanism, of the movable part, and the pressing assembly is used for pressing the sample piece to the top of the sample piece tray; and the blowing mechanism is arranged in the cavity, the blowing mechanism comprises a rotating nozzle arranged towards the clamping mechanism, the rotating nozzle is rotatably arranged around the rotating axis of the rotating nozzle, and the rotating nozzle is used for spraying rotating airflow to the sample wafer tray under the condition that compressed air is introduced. The sample wafer is pressed on the top of the sample wafer tray through the pressing piece, compressed air sprays out rotating airflow through the rotating nozzle, the covering area of the rotating airflow is large, the workload of maintenance personnel is greatly reduced, and the production benefit is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of metallurgical raw material analysis, and in particular relates to a sample cleaning device. Background Art

[0002] X-ray spectrometry is currently the most widely used analytical method for analyzing powdered raw materials at major steel companies. Raw materials such as sintered ore, pelletized ore, Dashihe low-grade materials, and white lime are typically pressed into regular pellets using a pellet press before being transferred to a fluorescence spectrometer for analysis. This analytical method places high demands on the surface cleanliness of the prepared pellets. X-ray analysis is performed in an ultra-low vacuum environment. Because these raw powdered samples are highly magnetic and adhesive, existing cleaning methods fail to thoroughly clean the sample and tray surfaces. As the number of samples analyzed increases, this can damage the X-ray fluorescence spectrometer's vacuum system, leading to a series of problems such as vacuum failure, manipulator transmission jamming, and XY manipulator gripping failures. Existing cleaning methods fail to effectively meet the analytical requirements of fluorescence spectrometers, resulting in heavy workloads for maintenance personnel and high equipment spare part consumption and costs. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a sample cleaning device that can clean powder on samples and trays more thoroughly and stably, greatly reducing the workload of maintenance personnel and improving production efficiency.

[0004] The present application provides a sample cleaning device, comprising:

[0005] a shell having a cavity therein;

[0006] a clamping mechanism, at least a portion of which is movably disposed within the cavity, the clamping mechanism being used to clamp the sample tray;

[0007] A pressing mechanism is disposed in the cavity, the pressing mechanism including a movable member that can be movably arranged in a direction close to and away from the clamping mechanism, and a pressing assembly is provided on a side of the movable member facing the clamping mechanism, the pressing assembly being used to press the sample against the top of the sample tray;

[0008] The purge mechanism is arranged in the cavity and includes a rotating nozzle arranged toward the clamping mechanism. The rotating nozzle is rotatable around its rotation axis and is used to spray a rotating airflow toward the sample tray when compressed air is introduced.

[0009] According to the sample cleaning device of the present application, the clamping mechanism can clamp the sample tray and transport the sample tray and the sample into the cavity, and drive the pressing part to press the sample on the top of the sample tray by moving the movable part to avoid blowing the sample off during subsequent blowing. Compressed air is introduced into the blowing mechanism, and the compressed air sprays out a rotating airflow through a rotating nozzle. The rotating airflow covers a large area without leaving dead corners, and the cleaning is more thorough. It also reduces the risk of damaging the sample due to excessive pressure of the direct blowing airflow, greatly reduces the workload of maintenance personnel, and improves production efficiency.

[0010] According to one embodiment of the present application, the purge mechanism further includes:

[0011] A mounting plate, mounted on the movable part, with an air inlet nozzle provided on the mounting plate;

[0012] The connecting piece is fixedly connected to the mounting plate. The rotating nozzle is rotatably mounted on the connecting piece through a rotating bearing. A connecting passage for connecting the air inlet nozzle and the rotating nozzle is provided in the connecting piece.

[0013] According to one embodiment of the present application, the rotating nozzle is rotatably arranged around an axis extending along the height direction, and a jet port is provided on the rotating nozzle, wherein a center line passing through the geometric center of the jet port and extending along the jet direction of the jet port is arranged at an angle to the height direction, and the center line does not intersect with the rotation axis of the rotating nozzle.

[0014] According to one embodiment of the present application, a plurality of air jets are provided, and the plurality of air jets are evenly distributed along the circumference of the rotating nozzle.

[0015] According to one embodiment of the present application, the end surface of the rotating nozzle facing the clamping mechanism is spherical.

[0016] According to one embodiment of the present application, the clamping mechanism also includes a support member, which is installed on the movable member and is cylindrically arranged extending along the height direction. The mounting plate is installed on the top of the support member, the rotating nozzle is arranged in the columnar space formed by the support member, and the clamping assembly is installed at the bottom of the support member.

[0017] According to one embodiment of the present application, the bottom of the support member is provided with an extension portion extending laterally thereof, and the pressing assembly includes:

[0018] a spring post connected to the bottom of the extension;

[0019] An elastic pad is provided on a side of the spring column close to the clamping mechanism;

[0020] The spring has two ends connected to the spring column and the elastic pad respectively.

[0021] According to one embodiment of the present application, the clamping mechanism also includes a driving cylinder, which is installed in the cavity. The output end of the driving cylinder is connected to the movable part to drive the movable part to move. A connecting hole is provided on the movable part, and the support part is arranged through the connecting hole. The extension part is located on the side of the movable part facing the clamping mechanism.

[0022] According to one embodiment of the present application, the sample cleaning device further includes:

[0023] A first cleaning nozzle is disposed in the cavity, the first cleaning nozzle is disposed toward the pressing member, and the installation height of the first cleaning nozzle is lower than the height of the movable member; and / or,

[0024] The second cleaning nozzle is arranged in the cavity, the second cleaning nozzle is arranged toward the bottom of the sample tray, and the installation height of the second cleaning nozzle is lower than the height of the clamping mechanism.

[0025] According to one embodiment of the present application, a dust collecting trough is provided at the bottom of the cavity, and a recovery pipe is connected to the bottom of the shell, and the recovery pipe passes through the shell and is connected to the bottom of the dust collecting trough.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of a sample cleaning device provided in an embodiment of the present application;

[0029] Figure 2 It is a partial structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0030] Figure 3 This is another partial structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of a partially exploded structure of a sample cleaning device provided in an embodiment of the present application;

[0032] Figure 5 This is another partial structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0033] Figure 6 This is another partial exploded structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0034] Figure 7This is another partial exploded structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0035] Figure 8 This is another partial exploded structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0036] Figure 9 This is another partial structural diagram of the sample cleaning device provided in an embodiment of the present application;

[0037] Figure 10 It is a flow chart of the sample cleaning procedure of the sample cleaning device provided in an embodiment of the present application.

[0038] Reference numerals:

[0039] 100. Sample cleaning device;

[0040] 110. Housing; 111. Cavity; 112. Through hole;

[0041] 120. Clamping mechanism; 121. Clamping claw;

[0042] 130. Clamping mechanism; 131. Driving cylinder; 132. Movable part; 1321. Connecting hole; 1322. Top screw; 133. Support member; 1331. Extension; 134. Clamping assembly; 1341. Spring column; 1342. Elastic pad; 1343. Spring;

[0043] 140. Purge mechanism; 141. Rotating nozzle; 1411. Air jet; 142. Mounting plate; 1421. Air inlet nozzle; 143. Connector;

[0044] 150, valve island; 151, first cleaning nozzle; 152, second cleaning nozzle;

[0045] 160. Dust collection unit; 161. Dust collection trough; 162. Filter; 163. Recovery pipe;

[0046] 200, sample tray; 300, sample. DETAILED DESCRIPTION

[0047] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0048] Reference below Figures 1-9 A sample cleaning device according to an embodiment of the present application is described.

[0049] See also Figures 1 to 5According to some embodiments of the present application, the sample cleaning device 100 includes a housing 110 , a clamping mechanism 120 , a pressing mechanism 130 and a purging mechanism 140 .

[0050] The housing 110 defines a cavity 111 therein.

[0051] The housing 110 is typically made of metal, such as stainless steel, which has good strength and corrosion resistance, can protect the internal mechanism from external interference, and provide a mounting base for the internal mechanism. The shape of the housing 110 is not specifically limited and can be a cube, a cuboid, a cylinder, etc.

[0052] At least a portion of the clamping mechanism 120 is movably disposed in the cavity 111 , and the clamping mechanism 120 is used to clamp the sample tray 200 .

[0053] The clamping mechanism 120 can adopt various structural forms. For example, the clamping mechanism 120 can include two symmetrically arranged clamping jaws 121. The clamping jaws 121 can be driven by a cylinder, and the expansion and contraction of the piston rod drives the opening and closing of the clamping jaws 121, thereby clamping the sample tray 200. A rubber pad can be provided on the inner side of the clamping jaw 121 to increase friction and prevent the sample tray 200 from sliding during the clamping process. Alternatively, an electric push rod and a clamping block can be used. The electric push rod is fixed to the housing 110, and the clamping block is moved by the expansion and contraction of the push rod, so that the sample tray 200 is clamped between the clamping blocks to achieve clamping.

[0054] In some examples, the shell 110 is provided with a through hole 112 connected to the cavity 111. The clamping mechanism 120 can clamp the sample tray 200 and then extend into the cavity 111 through the through hole 112 for subsequent purging work. After the purging is completed, the clamping mechanism 120 can take the sample tray 200 and the sample 300 out of the shell 110 for easy transportation to the subsequent detection and analysis station.

[0055] Furthermore, the through hole 112 may be elliptical in shape, which can minimize the leakage of dust while not interfering with the movement of the clamping mechanism 120 and the sample tray 200 .

[0056] The clamping mechanism 130 is arranged in the cavity 111. The clamping mechanism 130 includes a movable part 132 that can be movably arranged in the direction of approaching and moving away from the clamping mechanism 120. A clamping assembly 134 is provided on the side of the movable part 132 facing the clamping mechanism 120. The clamping assembly 134 is used to press the sample 300 on the top of the sample tray 200.

[0057] The movable part 132 of the clamping mechanism 130 can be driven by a driving structure such as an electric slide or a hydraulic cylinder. For example, taking the electric slide as an example, the electric slide is fixedly installed on the top inner wall of the housing 110, and the movable part 132 is fixedly connected to the slider of the electric slide, and the movable part 132 is controlled to move in the vertical direction by the electric slide. In some examples, the clamping assembly 134 can be a plurality of evenly distributed elastic pressure blocks, which can be made of rubber or silicone and have a certain elasticity, so as to press the sample 300 on the sample tray 200 without causing damage to the sample 300. The elastic pressure block is fixed to the side of the movable part 132 facing the clamping mechanism 120 by bolts. The sample 300 is clamped and fixed by the clamping member to reduce the risk of the sample 300 falling due to excessive wind force during blowing.

[0058] The purging mechanism 140 is disposed in the cavity 111 and includes a rotating nozzle 141 disposed toward the clamping mechanism 120 . The rotating nozzle 141 is rotatable around its rotation axis and is used to spray a rotating airflow toward the sample tray 200 when compressed air is introduced.

[0059] It is understandable that after the clamping mechanism 120 clamps the sample tray 200 and extends it into the cavity 111, the sample tray 200 can be located at the purge station, and the rotating nozzle 141 corresponds to the clamping mechanism 120 and the sample tray 200 located at the purge station, so that the gas ejected by the rotating nozzle 141 can purge the dust and other debris on the sample 300 and the sample tray 200. The rotating nozzle 141 of the purge mechanism 140 is rotatable around its rotation axis. In some examples, it can be driven to rotate around the rotation axis by a motor, which is mounted on the side wall of the housing 110 and connected to the rotating nozzle 141 by a transmission belt or a coupling. In other examples, the rotating nozzle 141 can also rotate automatically under the action of the airflow. By utilizing the rotation of the rotating nozzle 141, the airflow from the rotating nozzle 141 toward the sample tray 200 is a rotating airflow. The rotating airflow has a large coverage area and can carry away and remove the residual dust accumulated on the edge of the sample tray 200 without leaving any dead corners. This greatly improves the cleaning effect of the sample tray 200 and the sample 300, and ensures the stability of the vacuum system of the fluorescence spectrometer.

[0060] In practice, a sample 300 is placed on the sample tray 200. The clamping mechanism 120 operates to stabilize the sample tray 200, then transports and secures the sample tray 200 within the cavity 111 of the housing 110. Next, the movable member 132 of the clamping mechanism 130 drives the clamping assembly 134 downward, pressing the sample 300 against the sample tray 200. Compressed air is then introduced into the rotating nozzle 141 of the purge mechanism 140. The rotating nozzle 141 rotates and releases a rotating airflow, completely sweeping away powder from the surfaces of the sample tray 200 and sample 300. After cleaning is complete, the movable member 132 drives the clamping assembly 134 upward, releasing the pressure, and the clamping mechanism 120 can withdraw the sample tray 200 from the cavity 111 for transport to the subsequent analysis and testing station. When there is no damage on the surface of the sample 300, the sample tray 200 and the surface of the sample 300 are clean and free of dust residue, thereby avoiding the floating of dust on the surface of the sample 300 when entering the fluorescent vacuum environment for analysis, ensuring the vacuum stability of the instrument, and reducing the failure rate of the instrument vacuum, spare parts consumption and maintenance workload.

[0061] According to the sample cleaning device 100 provided in the embodiment of the present application, the clamping mechanism 120 can clamp the sample tray 200 and transport the sample tray 200 and the sample 300 into the cavity 111, and drive the pressing member to press the sample 300 on the top of the sample tray 200 by moving the movable part 132 to avoid blowing the sample 300 off during subsequent blowing. Compressed air is introduced into the blowing mechanism 140, and the compressed air is ejected into a rotating airflow through the rotating nozzle 141. The rotating airflow covers a large area, leaving no dead corners, and cleaning is more thorough. It also reduces the risk of damaging the sample 300 due to excessive pressure of the direct blowing airflow, greatly reducing the workload of maintenance personnel and improving production efficiency.

[0062] See also Figure 4 、 Figure 5 and Figure 6 According to some embodiments of the present application, the purge mechanism 140 may further include a mounting plate 142 and a connecting member 143. The mounting plate 142 may be mounted on the movable member 132, and an air inlet nozzle 1421 may be provided on the mounting plate 142; the connecting member 143 may be fixedly connected to the mounting plate 142, and the rotating nozzle 141 may be rotatably mounted on the connecting member 143 through a rotating bearing. A connecting channel connecting the air inlet nozzle 1421 and the rotating nozzle 141 is provided in the connecting member 143.

[0063] The mounting plate 142 is installed on the movable part 132. While the movable part 132 drives the pressing assembly 134 to press the sample 300, it also drives the mounting plate 142 to move, so as to ensure that the position of the rotating nozzle 141 and the relative position of the sample 300 and the sample tray 200 are reasonable, thereby improving the blowing effect.

[0064] In some examples, the mounting plate 142 can be made of metal, such as aluminum alloy, stainless steel, etc. The mounting plate 142 and the movable member 132 can be connected in various ways, such as bolting, which facilitates disassembly and installation, and facilitates maintenance and replacement of components on the mounting plate 142; welding can also be used, which can ensure the stability and firmness of the connection between the mounting plate 142 and the movable member 132.

[0065] The air inlet nozzle 1421 provided on the mounting plate 142 is used to connect to a compressed air source. The structure of the air inlet nozzle 1421 can be a common threaded interface, which is convenient for connection with a compressed air pipeline.

[0066] Connector 143 is fixedly connected to mounting plate 142, providing a mounting base for rotating nozzle 141. Connector 143 can also be made of metal, such as aluminum alloy or stainless steel. Connector 143 and mounting plate 142 can be bolted or welded. Rotating nozzle 141 is rotatably mounted to connector 143 via a rotating bearing. Deep groove ball bearings can be used for the rotating bearings, which ensure flexible rotation of rotating nozzle 141 and reduce friction during rotation.

[0067] A communication channel is provided inside the connecting piece 143 , and the communication channel can guide the compressed air received by the air inlet nozzle 1421 to the rotating nozzle 141 . By providing the connecting piece 143 , the air path can be kept connected even when the rotating nozzle 141 rotates.

[0068] In practice, when cleaning the sample 300, compressed air enters the mounting plate 142 through the air inlet nozzle 1421, then passes through the connecting channel in the connector 143 to reach the rotating nozzle 141. Because the rotating nozzle 141 is mounted on the connector 143 via a rotating bearing, the reaction force generated by the compressed air ejected from the rotating nozzle 141 causes the rotating nozzle 141 to rotate about its axis of rotation, thereby ejecting a rotating airflow toward the sample tray 200, thereby cleaning the sample 300 and the sample tray 200.

[0069] See also Figures 4 to 6 According to some embodiments of the present application, the rotating nozzle 141 can be rotatably set around an axis extending along the height direction, and a jet port 1411 is provided on the rotating nozzle 141, wherein a center line passing through the geometric center of the jet port 1411 and extending along the jet direction of the jet port 1411 can be set at an angle to the height direction, and the center line may not intersect with the rotation axis of the rotating nozzle 141.

[0070] The rotating nozzle 141 rotates about an axis extending in the height direction, allowing the rotating nozzle 141 to form a rotating cleaning range in the vertical direction. In actual structure, the height direction is usually perpendicular to the plane of the sample tray 200. This rotation method allows the airflow ejected by the rotating nozzle 141 to cover a larger area of ​​the sample tray 200.

[0071] The rotating nozzle 141 is provided with an air jet 1411. The shape of the air jet 1411 is not specifically limited. For example, the air jet 1411 can be elongated, circular, elliptical, or other shapes.

[0072] The centerline of the air jet 1411 is angled relative to the height, meaning the airflow is not ejected vertically downward, but rather at a certain angle. This allows the airflow to strike the surface of the sample 300 and sample tray 200 at an oblique angle, effectively removing impurities such as powder from the surface. This angle can be adjusted based on actual cleaning needs, for example, to 30°, 45°, or 60°.

[0073] This arrangement allows the reaction force generated by the airflow ejected from the air jet 1411 to generate a torque that rotates the rotating nozzle 141. When the compressed air is ejected from the air jet 1411, because the centerline does not intersect the rotation axis, the reaction force pushes the rotating nozzle 141 to rotate around the rotation axis, thereby achieving the ejection of rotating airflow.

[0074] In actual implementation, after compressed air enters the rotating nozzle 141 through the air inlet nozzle 1421 and the connecting channel, it is ejected from the air jet 1411. Since the centerline of the air jet 1411 is at an angle to the height direction and does not intersect with the axis of rotation, the reaction force generated by the ejected airflow will form a torque, pushing the rotating nozzle 141 to rotate around the axis extending along the height direction. Due to the use of pneumatic rotary blowing, the rotating nozzle 141 has a slow acceleration process. For example, after rotating for 4 seconds, a rotating airflow will be formed to blow away the residual dust particles around the surface of the sample 300 and the steel support surface. The rotating nozzle ejects an airflow with an inclined angle toward the surface of the sample tray 200 and the sample 300. This rotating and inclined airflow can fully and effectively cover the surface of the sample 300 and the sample tray 200, and clean away impurities such as powder on the surface.

[0075] According to the design of the air jet 1411 provided in the embodiment of the present application, this special setting of the air jet 1411 enables the rotating airflow ejected from the rotating nozzle 141 to clean the sample 300 and the sample tray 200 more efficiently. Compared with the vertical downward straight airflow or simple rotating airflow, it can cover the cleaning area more comprehensively, avoid the occurrence of cleaning dead corners, and further improve the thoroughness of cleaning. At the same time, because the airflow has an inclined angle, it can better peel off the powder from the surface, reducing problems such as fluorescence spectrometer malfunction caused by incomplete cleaning, further reducing the workload of maintenance personnel, and improving production efficiency.

[0076] See also Figures 4 to 6 According to some embodiments of the present application, a plurality of air jets 1411 may be provided, and the plurality of air jets 1411 are evenly distributed along the circumference of the rotating nozzle 141 .

[0077] There is no specific limit on the number of air jets 1411; two, three, four, or more air jets may be provided. Multiple air jets 1411 can simultaneously eject multiple air streams, significantly enhancing the force and effectiveness of the purge compared to a single air jet 1411, accelerating the removal of powder from the surfaces of the sample 300 and sample tray 200. For example, when two air jets 1411 are provided, they can be positioned relative to each other to purge the sample 300 from two directions. When three air jets 1411 are provided, they can be evenly distributed at 120° around the circumference of the rotating nozzle 141.

[0078] Multiple air jets 1411 are evenly distributed along the circumference of rotating nozzle 141. This ensures that the airflow reaction force on rotating nozzle 141 in all directions is relatively balanced during its rotation, ensuring the stability of its rotation. Furthermore, the even distribution of air jets 1411 ensures that the rotating airflow more evenly covers the surface of sample 300 and sample tray 200, preventing incomplete cleaning of certain areas. In an actual structure, the evenly distributed air jets 1411 can be precisely machined along the circumference of rotating nozzle 141 through precision machining methods, such as CNC machining.

[0079] When compressed air enters rotating nozzle 141, it is simultaneously ejected from multiple air jets 1411 evenly distributed along the circumference. Because the centerlines of air jets 1411 are angled with the height direction and do not intersect the rotation axis, the airflow ejected from each air jet 1411 generates a force component that propels rotating nozzle 141. The forces generated by multiple air jets 1411 work together to drive rotating nozzle 141 in stable rotation around its rotation axis, forming a more uniform, more extensive rotating airflow that sweeps powder from the surfaces of sample 300 and sample tray 200 in all directions.

[0080] See also Figures 4 to 6According to some embodiments of the present application, the end surface of the rotating nozzle 141 facing the clamping mechanism 120 can be set as a spherical surface.

[0081] It can be understood that the air jet 1411 is provided on the spherical surface.

[0082] The end surface of the rotating nozzle 141 facing the clamping mechanism 120 (i.e., facing the sample tray 200 and sample 300) is designed to be spherical. This spherical design allows the distance and angle of the airflow ejected from the rotating nozzle 141 to vary with the surface of the sample 300 and sample tray 200 at different locations during its rotation. This variation ensures more uniform airflow coverage across the surface of the sample 300 and sample tray 200, preventing the airflow from concentrating in one area while leaving other areas untouched.

[0083] When compressed air is ejected from the air outlet 1411 of the rotating nozzle 141, because the rotating nozzle 141 rotates about an axis extending in the height direction and its end surface is spherical, the airflow impacts the surface of the sample 300 and the sample tray 200 at different angles and distances at different times. As the rotating nozzle 141 rotates, the spherical end surface guides and disperses the airflow, allowing the airflow to more widely and evenly cover the surface of the sample 300 and the sample tray 200, thereby more comprehensively cleaning the powder on the surface.

[0084] See also Figure 2 、 Figure 4 and Figure 5 According to some embodiments of the present application, the clamping mechanism 130 may further include a support member 133, the support member 133 may be installed on the movable member 132, and the support member 133 may be arranged in a cylindrical shape extending along the height direction, the mounting plate 142 may be installed on the top of the support member 133, the rotating nozzle 141 may be arranged in the columnar space formed by the support member 133, and the clamping assembly 134 may be installed at the bottom of the support member 133.

[0085] The support member 133 is mounted on the movable member 132. Its main function is to provide support and positioning for the mounting plate 142, the rotating nozzle 141, and the clamping assembly 134, ensuring the relative position stability of each component during operation. The support member 133 is cylindrical and extends in the height direction. The cylindrical structure has good structural strength and stability and can withstand certain pressure and external forces. In actual applications, the support member 133 can be made of a metal material, such as an aluminum alloy or stainless steel, and formed by processes such as casting or welding. Its height and inner diameter can be designed according to the overall size of the device and the installation requirements of other internal components.

[0086] Mounting plate 142 is mounted on top of support member 133. The connection between the two can be bolted for ease of disassembly and maintenance, or welded to ensure a secure and stable connection. Mounting plate 142 is mounted on top of support member 133, providing a mounting base for air inlet nozzle 1421 and connector 143, allowing purge mechanism 140 to be more tightly coupled to compression mechanism 130 via support member 133.

[0087] The rotating nozzle 141 is arranged in the columnar space formed by the support member 133. This arrangement can provide a certain degree of protection for the rotating nozzle 141, preventing it from being disturbed by the outside world during operation. At the same time, it can also make the airflow ejected by the rotating nozzle 141 act more concentratedly on the sample 300 and the sample tray 200.

[0088] In some examples, the rotating nozzle 141 is completely located in the columnar space formed by the support member 133. The cylindrical structure of the support member 133 can also guide the direction of the airflow to a certain extent, thereby achieving a better cleaning effect.

[0089] In other examples, at least a portion of the rotating nozzle 141 is extended downward from the bottom opening of the support member 133. Specifically, the portion of the rotating nozzle 141 provided with the air jet 1411 extends downward outside the bottom of the support member 133, so that the air jet 1411 can be closer to the sample tray 200 and the sample 300, thereby increasing the blowing force and thus improving the blowing effect.

[0090] The pressing assembly 134 is mounted on the bottom of the support member 133 and can be fixed by bolts, buckles, etc. Such an installation method can ensure that the pressing assembly 134 can stably press the sample 300 under the drive of the movable member 132, ensuring that the position of the sample 300 is fixed during the cleaning process.

[0091] According to the support member 133 provided in the embodiment of the present application, the support member 133 provides a stable mounting base for the various components, ensuring that during the cleaning process of the sample 300, the pressing assembly 134 can reliably press the sample 300, while the rotating nozzle 141 can stably eject the rotating airflow for cleaning. This structural design improves the stability and reliability of the entire sample cleaning device 100, making the cleaning work more efficient and accurate, further reducing the risk of incomplete cleaning or damage to the sample 300 due to an unstable device structure, reducing the workload of maintenance personnel, and improving production efficiency.

[0092] See also Figure 2 、 Figure 5 and Figure 7According to some embodiments of the present application, the bottom of the support member 133 may be provided with an extension portion 1331 extending laterally thereof, and the clamping assembly 134 may include a spring column 1341, an elastic pad 1342 and a spring 1343, the spring column 1341 being connected to the bottom of the extension portion 1331; the elastic pad 1342 being provided on one side of the spring column 1341 close to the clamping mechanism 120; and the two ends of the spring 1343 being respectively connected to the spring column 1341 and the elastic pad 1342.

[0093] Extension 1331, extending laterally from the bottom of support member 133, provides a mounting location and support base for compression assembly 134. Extension 1331 can be integrally formed with support member 133, for example, using a casting process to ensure structural strength and integrity. Alternatively, it can be connected to support member 133 via welding or other methods. The length and width of extension 1331 can be designed based on the size and layout requirements of compression assembly 134.

[0094] Spring column 1341 is connected to the bottom of extension 1331. It serves to secure spring 1343 and transmit pressure. Spring column 1341 is generally made of a metal material, such as stainless steel, which has good strength and corrosion resistance. The length and diameter of spring column 1341 are determined based on the size and elastic modulus of spring 1343, as well as the required compression force.

[0095] The elastic pad 1342 is disposed on the side of the spring column 1341 close to the clamping mechanism 120, that is, close to the sample 300 and the sample tray 200. The elastic pad 1342 is typically made of an elastic material such as rubber or silicone. These materials are soft and can prevent damage to the surface of the sample 300 when compacting the sample 300. At the same time, they can better fit the surface of the sample 300 to ensure a compacting effect.

[0096] The ends of spring 1343 are connected to spring column 1341 and elastic pad 1342, respectively. Spring 1343 provides a resilient compressive force. When movable member 132 drives support member 133 downward, spring 1343 is compressed, generating a resilient force that, through elastic pad 1342, presses sample 300 against sample tray 200. The spring constant of spring 1343 should be selected based on the characteristics of sample 300 and the actual compression requirements.

[0097] In actual operation, when the movable member 132 drives the support member 133 to move downward, the extension 1331 and the spring column 1341 connected to the bottom of the extension 1331 also move downward. The elastic pad 1342 first contacts the sample 300. As the support member 133 continues to descend, the spring 1343 is compressed. The elastic force generated by the spring 1343 acts on the sample 300 through the elastic pad 1342, pressing the sample 300 against the sample tray 200. During the process of the purge mechanism 140 cleaning the sample 300, the elastic action of the spring 1343 ensures that the elastic pad 1342 always maintains close contact with the sample 300, preventing the sample 300 from moving under the impact of the rotating airflow. When the cleaning work is completed, the movable member 132 drives the support member 133 to move upward, the spring 1343 returns to its original state, and the elastic pad 1342 separates from the sample 300.

[0098] See also Figure 2 and Figure 5 According to some embodiments of the present application, the extension portion 1331 can be an annular arrangement extending along the circumference of the support member 133, and a plurality of clamping assemblies 134 can be provided, and the plurality of clamping assemblies 134 are evenly distributed along the circumference of the support member 133.

[0099] The extension portion 1331 is designed as an annular structure extending circumferentially along the support member 133, which can provide uniform installation positions for multiple clamping assemblies 134. The annular extension portion 1331 can increase the bearing area at the bottom of the support member 133, so that the force of each clamping assembly 134 is more balanced during operation.

[0100] There is no specific limit to the number of clamping assemblies 134, and there can be two, three, four or more. Multiple clamping assemblies 134 are evenly distributed along the circumference of the support 133. This distribution method can make the sample 300 be subjected to uniform clamping force in all directions. Multiple clamping assemblies 134 can apply clamping force on the circumference of the sample 300 at the same time, avoiding the situation where the sample 300 is tilted or moved due to local uneven force. This makes the sample 300 more stable during the cleaning process, and can better withstand the impact of the rotating airflow, ensuring the thoroughness and reliability of the cleaning. At the same time, this design also enhances the adaptability of the device to samples 300 of different shapes and sizes, further reduces the cleaning problems caused by the loose fixation of the sample 300, reduces the workload of maintenance personnel, and improves production efficiency.

[0101] See also Figure 2 、 Figure 5 and Figure 8According to some embodiments of the present application, the clamping mechanism 130 may further include a driving cylinder 131, which may be installed in the cavity 111. The output end of the driving cylinder 131 may be connected to the movable part 132 to drive the movable part 132 to move. The movable part 132 may be provided with a connecting hole 1321, and the support part 133 may be arranged through the connecting hole 1321. The extension portion 1331 may be located on the side of the movable part 132 facing the clamping mechanism 120.

[0102] Drive cylinder 131, mounted within cavity 111 of housing 110, is the power source for moving movable member 132. A common pneumatic cylinder can be used for drive cylinder 131, which offers advantages such as simple structure, rapid operation, and easy maintenance. Its operating principle is to use compressed air to propel a piston, thereby extending and retracting a piston rod at the output end. The model and specifications of the cylinder can be selected based on factors such as the travel range of movable member 132 and the required driving force.

[0103] The output end of the driving cylinder 131 can be connected by bolts or pins to ensure the firmness and reliability of the connection.

[0104] The connecting hole 1321 provided on the movable member 132 serves to provide a passage for the support member 133 to pass through, and also serves to guide the support member 133. In some examples, the outer wall of the movable member 132 may be provided with a threaded hole extending through the inner wall of the connecting hole 1321. A top screw 1322 may be provided in the threaded hole. After the support member 133 is installed in the connecting hole 1321, the top screw 1322 is rotated to tighten the support member 133, thereby ensuring a secure connection between the support member 133 and the movable member 132. This structure is simple, and is easy to assemble and disassemble, facilitating subsequent maintenance of components.

[0105] The extension portion 1331 can be located on the side of the movable part 132 facing the clamping mechanism 120. It can be understood that the size of the connecting hole 1321 is smaller than the size of the extension portion 1331, so that the extension portion 1331 can abut against the surface of the movable part 132 facing the clamping mechanism 120. On the one hand, it plays a role in limiting the support part 133. On the other hand, when the movable part 132 moves close to the clamping mechanism 120, the force can be better applied to the extension portion 1331 and the clamping assembly 134 at the bottom of the extension portion 1331 to ensure that the clamping force can fully act on the sample 300 and the sample tray.

[0106] In actual operation, when cleaning the sample 300 is required, the drive cylinder 131 is activated, and the piston rod of the drive cylinder 131 extends, driving the movable member 132 downward. The movable member 132 then drives the support member 133 downward through the connection hole 1321, and the pressing assembly 134 at the bottom of the support member 133 then approaches the sample 300. After the elastic pad 1342 contacts the sample 300, as the movable member 132 continues to descend, the spring 1343 in the pressing assembly 134 is compressed, pressing the sample 300 against the sample tray 200. Simultaneously, the mounting plate 142 mounted on the top of the support member 133 and the rotating nozzle 141 located inside the support member 133 also move to the appropriate positions. At this time, compressed air is introduced into the rotating nozzle 141, which then sprays a rotating airflow to clean the sample 300 and the sample tray 200. After cleaning is completed, the piston rod of the driving cylinder 131 retracts, driving the movable member 132 to move upward, and the pressing assembly 134 and the rotating nozzle 141 return to their initial positions.

[0107] See also Figure 1 、 Figure 2 and Figure 9 According to some embodiments of the present application, the sample cleaning device 100 may further include a first cleaning nozzle 151. The first cleaning nozzle 151 is disposed in the cavity 111, facing the pressing member, and the installation height of the first cleaning nozzle 151 is lower than the height of the movable member 132.

[0108] The first cleaning nozzle 151 is disposed within the cavity 111 of the housing 110, facing the pressing member, and is installed at a height lower than that of the movable member 132. This positioning allows the first cleaning nozzle 151 to effectively clean the pressing member without interfering with the normal movement of the movable member 132. The first cleaning nozzle 151 can be mounted on the inner wall of the housing 110 and secured by a bracket or other structure.

[0109] During the cleaning process of the sample 300, some powder impurities may adhere to the pressing member during the process of contact and separation with the sample 300. The first cleaning nozzle 151 can promptly clean the impurities on the surface of the pressing member by spraying compressed air, ensuring the cleanliness of the pressing member and preventing impurities from contaminating the sample 300 during the subsequent pressing process.

[0110] See also Figure 1 、 Figure 2 and Figure 9 According to some embodiments of the present application, the sample cleaning device 100 may further include a second cleaning nozzle 152. The second cleaning nozzle 152 is disposed in the cavity 111, facing the bottom of the sample tray 200, and the installation height of the second cleaning nozzle 152 is lower than the height of the clamping mechanism 120.

[0111] Second cleaning nozzle 152 is positioned within cavity 111, facing the bottom of sample tray 200, and installed at a height lower than the height of clamping mechanism 120. This arrangement enables second cleaning nozzle 152 to thoroughly purge and clean the bottom of sample tray 200. It can be mounted at a suitable location on the sidewall of housing 110, secured by a bracket, and connected to a compressed air source via a pipe.

[0112] During use, some powder impurities may remain at the bottom of the sample tray 200. The compressed air ejected by the second cleaning nozzle 152 can blow these impurities away, preventing them from accumulating at the bottom of the sample tray 200 and affecting the placement stability and subsequent use of the sample tray 200, while ensuring the accuracy and stability of the sample data.

[0113] The first cleaning nozzle 151 and the second cleaning nozzle 152 provided in the embodiments of the present application promptly clean impurities from the clamping element and the bottom of the sample tray 200, reducing the risk of equipment failures caused by impurity accumulation, such as jamming of the clamping element and unstable placement of the sample tray 200, and reducing the workload of maintenance personnel. This more thorough cleaning ensures the quality of the sample 300 and reduces analytical errors and equipment failures caused by incomplete cleaning of the sample 300, thereby improving production efficiency and product quality.

[0114] See also Figure 1 、 Figure 2 and Figure 9 In some embodiments, a valve island 150 is provided on the inner wall of the shell 110 , and the air inlet on the valve island 150 passes through the shell 110 to the outside of the shell 110 , and the first cleaning nozzle 151 and the second cleaning nozzle 152 are both connected to the valve island 150 .

[0115] See also Figure 1 and Figure 2 According to some embodiments of the present application, a dust collecting trough 161 may be provided at the bottom of the cavity 111 , and a recovery pipe 163 is connected to the bottom of the shell 110 , and the recovery pipe 163 passes through the shell 110 and is connected to the bottom of the dust collecting trough 161 .

[0116] Located at the bottom of cavity 111, it collects powder impurities swept down during the cleaning process of sample 300. Dust collection trough 161 can be made of metal or plastic, have a certain volume, and can be rectangular, circular, or other shapes. Its size is designed based on the amount of impurities generated by the sample 300 to be cleaned. The inner wall of dust collection trough 161 can be designed with a smooth, inclined surface to facilitate the collection and removal of impurities.

[0117] The recovery pipe 163 is connected to the bottom of the shell 110 and passes through the shell 110 to be connected to the bottom of the dust collecting tank 161. The recovery pipe 163 can be designed as a negative pressure pipe. The pipe material can be selected from hard plastic or metal (such as stainless steel), which has good sealing and strength to ensure the negative pressure effect. The size of the inner diameter of the pipe needs to take into account the size of the dust particles and the expected recovery flow rate to ensure that the dust can pass smoothly. The generation of negative pressure can be assisted by external vacuum pumps and other equipment to form a negative pressure environment in the recovery pipe 163. During the cleaning process, on the one hand, the rotating airflow ejected by the purge mechanism 140 blows the dust off the sample 300 and the tray surface. On the other hand, the negative pressure of the recovery pipe 163 quickly sucks the dust in the dust collecting tank 161 into the pipe and transports it to the external dust collection device, effectively preventing dust from overflowing into the external environment of the device.

[0118] Combining purge and negative pressure, dust can be quickly removed from the sample 300 and tray surfaces and drawn into the recovery duct 163, improving dust recovery efficiency and reducing dust residue within the device. The negative pressure duct design effectively prevents dust from escaping the device, maintaining a clean working environment and minimizing potential health hazards to operators. Promptly removing dust from the device reduces the risk of wear and clogging of internal components, extending the device's service life, reducing the frequency of equipment failures, and lowering maintenance costs.

[0119] In some examples, a filter 162 may be provided at the bottom of the dust collecting trough 161 to prevent debris such as the sample 300 or material ring from entering the dust removal port, thereby reducing the probability of dust removal negative pressure blockage and improving the dust removal effect.

[0120] In some embodiments, the clamping mechanism 120 can be an ABB manipulator (hereinafter referred to as the manipulator), and the electrical control unit of the sample cleaning device 100 adopts an ABB manipulator program control integrated design. The DSQC652 external IO board is controlled by the DEVICNET (Device Net) bus to realize the control and signal feedback of various components of the device. Among them, the action of the driving cylinder 131, the feedback of the action in place, the dust removal control, the blowing control, etc. are all controlled by the ABB manipulator program. This design method has the characteristics of low cost, stable communication transmission, strong synchronization, clear program logic, etc., which can ensure the stable operation of the device. Compared with the traditional control scheme, this design saves spare parts such as PLC (Programmable Logic Controller) and communication modules, and at the same time uses the stable communication performance of the DEVICNET bus to ensure the stability of communication, and has the advantages of clear program logic control and easy troubleshooting.

[0121] The dust collection unit 160 primarily consists of a vacuum pump, a negative pressure dust removal butterfly valve, and a recovery pipe 163. The vacuum pump provides the power to generate negative pressure, while the negative pressure dust removal butterfly valve is installed on the recovery pipe 163 and is programmably controlled by an ABB robot to open and close, thereby controlling the on / off of the negative pressure.

[0122] Specifically, based on the Robot Control Cabinet Option Package 709-1 DeviceNet Communication, three physical output interfaces are selected on DeviceNet Output Board X14 as control signals for the sample cleaning device 100: one interface, named Do_qigang, controls the lift of the drive cylinder 131; one interface, named Do_clr, controls the opening and closing of the air valve of the purge mechanism 140; and one interface, named Do_chuchen, controls the opening and closing of the air valves of the first cleaning nozzle 151 and the second cleaning nozzle 152. Two physical input interfaces, named DI_qiganggaowei and DI_qigangdiwei, are selected on DeviceNet Input Board X13 as detection signals for the holding mechanism's position.

[0123] In terms of the control flow, when the robot performs the corresponding cleaning procedure for the sample 300, it first sends a signal to the negative pressure dust removal butterfly valve of the dust collection unit 160 to open it. This activates the vacuum pump and generates negative pressure in the negative pressure pipe. The robot then grips the sample tray 200 and places it into the cavity 111 of the housing 110. It then sends a signal to the drive cylinder 131, causing it to begin its descent. Once the drive cylinder 131 has descended into position, the system delays for two seconds. This delay is determined based on factors such as the stabilization time required to hold the sample 300 in place and the response time of the components. After the delay expires, the robot sends a signal to the air valve of the purge mechanism 140 to open it. The rotating nozzle 141 of the purge mechanism 140 releases a rotating airflow, cleaning the sample 300 and the sample tray 200. The cleaning time for the sample 300 is set to 5 seconds. This time was determined through multiple experiments based on factors such as the dust removal effect on the sample 300 surface and production efficiency. When the 5-second cleaning time is reached, the rotating nozzle 141 is first stopped to stop the purge airflow. This prevents any unnecessary impact on the sample 300 during the cylinder's ascent. The drive cylinder 131 is then controlled to ascend. Once the drive cylinder 131 has reached its proper position, the manipulator begins to withdraw from the cavity 111. After the manipulator withdraws, the negative pressure dust removal butterfly valve is closed, the vacuum pump stops, and the negative pressure is turned off, waiting for the next sample 300 cleaning cycle to begin.

[0124] Furthermore, to improve the reliability of the device's operation, the system can also incorporate fault detection and handling mechanisms. For example, if the correct feedback signal from DI_qiganggaowei or DI_qigangdiwei is not received within a specified timeframe, this indicates a possible fault in the clamping mechanism 130. The system should immediately cease related operations and issue an alarm to prompt maintenance personnel to conduct an inspection. If the valve fails to respond with a status change signal within a specified timeframe after receiving an open or close signal, a fault alarm should also be triggered, halting related processes to prevent the device from operating with a fault.

[0125] See also Figure 10 In some embodiments, when the sample cleaning device 100 performs the sample 300 cleaning procedure, the following steps are included:

[0126] Step S41: Send a first signal to the dust collection unit 160 to control the negative pressure dust removal butterfly valve to open, and control the vacuum pump to start, so that negative pressure is generated in the negative pressure pipe.

[0127] Step S42 : Send a second signal to the robot arm to control the robot arm to clamp the sample tray 200 and enter the cavity 111 of the housing 110 .

[0128] Step S43: Send a second signal to the driving cylinder 131 to control the driving cylinder 131 to drive the movable member 132 to descend.

[0129] Step S44: After receiving the signal indicating that the driving cylinder 131 has descended to its proper position, a first time duration is recorded to wait for the sample 300 to be pressed and stabilized.

[0130] Step S45: After the first duration reaches a first preset duration, a third signal is sent to the air valve of purge mechanism 140 to control the air valve of purge mechanism 140 to open. Rotating nozzle 141 of purge mechanism 140 sprays a rotating airflow to clean sample 300 and sample tray 200, and a second duration is recorded. The first preset duration can be 2 seconds, which is not specifically limited.

[0131] Step S46: After the second time period reaches the second preset time period, a fourth signal is sent to the air valve of the purge mechanism 140 to control the air valve of the purge mechanism 140 to close, thereby stopping the purge flow.

[0132] Step S47: Send a fifth signal to the driving cylinder 131 to control the driving cylinder 131 to rise.

[0133] Step S48 : After receiving the signal indicating that the driving cylinder 131 has risen to its position, a sixth signal is sent to the manipulator to control the manipulator to exit the cavity 111 .

[0134] Step S49: After the manipulator exits, a seventh signal is sent to the negative pressure dust removal butterfly valve to control the negative pressure dust removal butterfly valve to close, and the vacuum pump is controlled to stop working and close the negative pressure.

[0135] Waiting for the start of the next sample 300 cleaning cycle, during the waiting process, continuously detecting the status of each component, if a fault occurs, responding and handling it according to the preset fault handling mechanism.

[0136] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0137] In the description of the present application, 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 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 application and simplifying the description, and do not indicate or imply 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 a limitation on the present application.

[0138] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0139] In the description of this application, “plurality” means two or more.

[0140] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0141] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0142] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0143] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sample cleaning device, characterized in that: include: a housing, wherein the housing has a cavity; a clamping mechanism, at least a portion of which is movably disposed within the cavity, the clamping mechanism being used to clamp the sample tray; A pressing mechanism is disposed in the cavity, the pressing mechanism comprising a movable member movably arranged in a direction approaching and away from the clamping mechanism, a pressing assembly being provided on a side of the movable member facing the clamping mechanism, the pressing assembly being used to press the sample against the top of the sample tray; A purge mechanism is provided in the cavity, and the purge mechanism includes a rotating nozzle arranged toward the clamping mechanism. The rotating nozzle is rotatable around its rotation axis, and is used to spray a rotating airflow toward the sample tray when compressed air is introduced.

2. The sample cleaning device according to claim 1, characterized in that: The purge mechanism also includes: A mounting plate, mounted on the movable part, wherein the mounting plate is provided with an air inlet nozzle; A connecting piece is fixedly connected to the mounting plate. The rotating nozzle is rotatably mounted on the connecting piece via a rotating bearing. A connecting passage for connecting the air inlet nozzle and the rotating nozzle is provided in the connecting piece.

3. The sample cleaning device according to claim 2, characterized in that: The rotating nozzle is rotatably arranged around an axis extending in the height direction, and an air jet is provided on the rotating nozzle, wherein a center line passing through the geometric center of the air jet and extending along the air jet direction of the air jet is arranged at an angle to the height direction, and the center line does not intersect with the rotation axis of the rotating nozzle.

4. The sample cleaning device according to claim 3, characterized in that: There are multiple air jets, and the multiple air jets are evenly distributed along the circumference of the rotating nozzle.

5. The sample cleaning device according to claim 3, characterized in that: The end surface of the rotating nozzle facing the clamping mechanism is spherical.

6. The sample cleaning device according to claim 2, characterized in that: The clamping mechanism also includes a support member, which is installed on the movable member and is cylindrically arranged extending in the height direction. The mounting plate is installed on the top of the support member, the rotating nozzle is arranged in the columnar space formed by the support member, and the clamping assembly is installed at the bottom of the support member.

7. The sample cleaning device according to claim 6, characterized in that: The bottom of the support member is provided with an extension portion extending laterally thereof, and the pressing assembly includes: a spring post connected to the bottom of the extension; an elastic pad, provided on a side of the spring column close to the clamping mechanism; A spring, wherein both ends of the spring are respectively connected to the spring column and the elastic pad.

8. The sample cleaning device according to claim 7, characterized in that: The clamping mechanism also includes a driving cylinder, which is installed in the cavity. The output end of the driving cylinder is connected to the movable part to drive the movable part to move. A connecting hole is provided on the movable part, and the support part is arranged through the connecting hole. The extension part is located on the side of the movable part facing the clamping mechanism.

9. The sample cleaning device according to any one of claims 1 to 8, characterized in that: Also includes: a first cleaning nozzle disposed in the cavity, the first cleaning nozzle being disposed toward the pressing member, and an installation height of the first cleaning nozzle being lower than a height of the movable member; and / or, The second cleaning nozzle is disposed in the cavity, the second cleaning nozzle is disposed toward the bottom of the sample tray, and the installation height of the second cleaning nozzle is lower than the height of the clamping mechanism.

10. The sample cleaning device according to any one of claims 1 to 8, characterized in that: A dust collecting trough is provided at the bottom of the cavity, and a recovery pipe is connected to the bottom of the shell. The recovery pipe passes through the shell and is connected to the bottom of the dust collecting trough.

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