Sample pretreatment device applied to XRF (X-Ray Fluorescence) detection

Abstract

The utility model discloses a sample pretreatment device applied to XRF (X-ray fluorescence) detection, which comprises a base, a tray, a circular slide rail, a drying module and a power module, and the base is provided with a first accommodating groove, a second accommodating groove, a third accommodating groove and a fourth accommodating groove which are sequentially and clockwise arranged in a shape like a Chinese character'tian '; the first containing groove, the second containing groove and the third containing groove can contain liquid used for cleaning and are each provided with a stirring assembly used for stirring the liquid, and the bottoms of the first containing groove, the second containing groove and the third containing groove are each provided with a water outlet capable of being opened and closed. The drying module is installed at the fourth containing groove and dries the interior of the fourth containing groove. The tray is hollowed out, samples can be placed in the tray, the tray is connected with the circular sliding rail and can move to the positions above the first containing groove, the second containing groove, the third containing groove and the fourth containing groove along the sliding rail according to preset time, the sliding rail can ascend and descend relative to the base, and the power module can provide power for ascending and descending of the sliding rail, relative movement of the tray and starting and stopping of the stirring assemblies and the drying module. Sample surface pretreatment can be achieved, the efficiency is high, and sample damage is not prone to being caused.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sample pretreatment field, more particularly to a kind of sample's pretreatment device applied to XRF detection. BACKGROUND

[0002] Currently, X-ray fluorescence spectrometry (XRF) is a widely used non-destructive testing technique for material composition analysis. This technique measures the intensity and energy of fluorescent X-rays emitted by a sample under X-ray excitation to quantitatively analyze the content of each element in the sample. XRF technology has been widely used in the detection of element content of precious metal jewelry due to its rapid, non-destructive, easy-to-operate and other advantages.

[0003] However, in practical applications, XRF detection of the element content of precious metal jewelry is significantly affected by the surface state of the sample. The smoothness, oil stains, fingerprints, scratches and other factors on the surface of the sample can interfere with the analysis results of XRF, resulting in a decrease in the accuracy of the test results. In order to obtain accurate analysis results, the current practice is to pretreat the sample surface before detection.

[0004] Manual sample pretreatment process usually includes the following steps:

[0005] 1. Clean the sample surface: use cleaning agent and soft cloth to manually wipe the sample surface to remove contaminants such as oil stains and fingerprints. This step requires careful operation by the operator to avoid unnecessary damage to the precious metal jewelry.

[0006] 2. Flatten the sample surface: For samples with uneven surfaces, tools may be used to knock them to make the sample surface as flat as possible. This process not only takes time, but also may cause slight deformation or damage to the sample during the knocking process.

[0007] 3. Drying treatment: After cleaning and flattening, the sample needs to be dried to remove surface moisture. This step usually requires waiting for a period of time, increasing the total detection time.

[0008] 4. Detection: After the above pretreatment steps, the sample can be placed in the XRF device for element content detection.

[0009] Manual sample pretreatment usually has the following disadvantages:

[0010] 1. Time-consuming and labor-intensive: The process of manually cleaning and flattening the sample surface is tedious and requires a lot of manpower and time.

[0011] 2. May damage the sample: Knocking the sample surface to make it flat may cause slight deformation or damage to the precious metal jewelry, affecting its appearance and value.

[0012] 3. Low efficiency: the whole pretreatment process reduces the efficiency of XRF detection, which is not conducive to the demand of batch detection.

[0013] Therefore, there is a need for a new technology to solve the problem of low efficiency and easy to cause sample damage when manually pretreating the sample in the prior art. Utility model content

[0014] To solve the above problems in the prior art, the utility model provides a kind of pretreatment device of sample applied to XRF detection, can realize the pretreatment before sample XRF detection, and efficiency is high when sample pretreatment is not easy to cause sample damage.

[0015] The utility model adopts the following technical solutions:

[0016] A kind of pretreatment device of sample applied to XRF detection, including base, tray, circular slide rail, drying module and power module, the first container groove, second container groove, third container groove and fourth container groove in the form of a field are sequentially arranged clockwise on the base, the first container groove, the second container groove, the third container groove can hold liquid for washing and are each equipped with stirring assembly for stirring liquid, the first container groove, the second container groove, the third container groove bottom are each equipped with openable or closable drain outlet;The drying module is installed at the fourth container groove and can dry in fourth container groove;

[0017] The tray is equipped with hollow structure and can place sample inside, the tray is connected with the circular slide rail, the circular slide rail can be lifted relative to base, the tray can be moved to the first container groove, the second container groove, the third container groove, fourth container groove above according to preset time along the circular slide rail;

[0018] The power module can provide power for the lifting of the circular slide rail, the relative movement of the tray and the start-stop of each stirring assembly and the drying module.

[0019] As further improvement of the technical scheme of the utility model, control panel is installed on the outside of the base, and the control panel is used to control the start-stop of the circular slide rail, the lifting rod and each stirring assembly.

[0020] As further improvement of the technical scheme of the utility model, the stirring assembly can form vortex by stirring liquid.

[0021] As further improvement of the technical scheme of the utility model, the drying module is installed on the inner wall of the fourth container groove.

[0022] As a further improvement of the utility model technical scheme, the tray includes a bottom disc and an end cover, the bottom disc is provided with an opening at the upper end, the end cover is installed on the upper end of the bottom disc and is used for opening or closing the opening, the bottom disc is provided with a cavity for accommodating samples, the side wall of the bottom disc is provided with a hollow structure which can communicate with the cavity, and the bottom disc is connected with the circular slide rail.

[0023] As a further improvement of the utility model technical scheme, the bottom of the bottom disc is a porous mesh structure.

[0024] As a further improvement of the utility model technical scheme, the bottom of the bottom disc is a porous mesh structure.

[0025] As a further improvement of the utility model technical scheme, the bottom of the bottom disc is a porous mesh structure.

[0026] As a further improvement of the utility model technical scheme, the bottom of the bottom disc is a porous mesh structure.

[0027] As a further improvement of the utility model technical scheme, the bottom of the bottom disc is a porous mesh structure.

[0028] Compared with the prior art, the utility model has the beneficial effects that:

[0029] The base of the scheme is provided with a first container groove, a second container groove, a third container groove and a fourth container groove arranged in a clockwise order in the shape of a field, different liquids can be injected into the first container groove, the second container groove and the third container groove as required and stirred by the stirring assembly to make the liquid fully contact with the sample surface, the bottom of the container groove containing the liquid is provided with an openable or closable drain port, so that the liquid in the interior can be smoothly emptied when the liquid is replaced or cleaned, new liquid can be injected after the drain port is closed, the first container groove, the second container groove and the third container groove can continuously maintain the cleanliness of the soaking liquid, the accumulation of pollutants is avoided to affect the detection result, and the cleaned sample can be dried in the fourth container groove. BRIEF DESCRIPTION OF DRAWINGS

[0030] The technology of the utility model will be explained in further detail in combination with the drawings and specific embodiments:

[0031] Figure 1 It is the whole structure schematic diagram of the utility model.

[0032] Reference signs:

[0033] 1-base;11-first container groove;12-second container groove;13-third container groove;14-fourth container groove;15-drain port;

[0034] 2-tray;

[0035] 3-connecting rod;

[0036] 4-slide rail;

[0037] 5-lifting rod;

[0038] 6-stirring assembly;

[0039] 7-power module;

[0040] 8-control panel;

[0041] 9-drying module. Detailed Implementation

[0042] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0043] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0044] Reference Figure 1 A sample pretreatment device for XRF detection includes a base 1, a tray 2, a lifting rod 5, a circular slide rail 4, a drying module 9, and a power module 7. The base 1 has a first container 11, a second container 12, a third container 13, and a fourth container 14 arranged clockwise in a grid pattern. The first container 11, the second container 12, and the third container 13 can hold liquids for cleaning and are all equipped with stirring components 6 for agitating the liquids. Different amounts of liquids can be injected into the first container 11, the second container 12, and the third container 13 as needed. For the same liquid, the bottom of the first container 11, the second container 12, and the third container 13 are all provided with openable or closable drain ports 15. This allows the liquid inside the first container 11, the second container 12, and the third container 13 to be drained smoothly when the liquid is changed or cleaned. The corresponding drain port 15 can be opened as needed during cleaning, and new liquid can be injected after the drain port 15 is closed. This ensures that the first container 11, the second container 12, and the third container 13 maintain the cleanliness of the soaking solution, preventing the accumulation of contaminants from affecting the test results. The drying module 9 is installed at the fourth container 14 and can dry the contents of the fourth container 14. The cleaned sample can be dried in the fourth container 14.

[0045] The tray 2 has a hollow structure and can place samples inside, the upper end of the tray 2 is slidably installed on the circular slide rail 4, the upper and lower ends of the lifting rod 5 are connected with the circular slide rail 4 and the base 1 in turn, and the circular slide rail 4 can be lifted relative to the base 1. The tray 2 can move to the upper side of the first container groove 11, the second container groove 12, the third container groove 13 and finally the fourth container groove 14 according to the preset time along the circular slide rail 4. The power module 7 can access power to provide power for the operation of the circular slide rail 4, the lifting rod 5 and each stirring assembly 6.

[0046] The sample pretreatment device for XRF detection can realize sample surface pretreatment before XRF detection, effectively remove surface contaminants and restore sample surface smoothness without damaging the sample. By precisely controlling the soaking time and selecting appropriate metal cleaning agents, the sample surface smoothness and flatness are ensured, thereby reducing errors in the XRF detection process and improving the accuracy of the analysis results. The sample is placed in the tray 2, which can be suitable for various shapes and sizes of precious metal jewelry, with good versatility and adaptability. Users only need to set parameters through a simple operation interface to start the entire pretreatment process, simplifying the operation steps and improving user experience. The automatic lifting, soaking and drying process replaces the manual wiping and knocking process of the sample surface, reducing the labor demand and operation time. Through the automatic process, the sample pretreatment becomes fast and controllable, improving the overall efficiency of XRF detection and meeting the demand for batch detection. The automatic cleaning and smoothing process avoids damage to the precious metal jewelry and protects the integrity and aesthetics of the sample. In addition, this automated equipment reduces equipment damage caused by improper operation, reducing maintenance costs and frequency.

[0047] Specifically, the control panel 8 is installed on the outside of the base 1, and the ascending and descending of the circular slide rail 4 relative to the bottom of the lifting rod 5 or the ascending and descending of the circular slide rail 4 along the lifting rod 5, the movement of the tray 2 along the circular slide rail 4, the start and stop of the stirring assembly 6, and the start and stop of the drying module 9 are all controlled by the control panel 8. The control panel 8 can be set by conventional technical means, and the control panel 8 is a conventional automatic control system, including but not limited to a commonly used PLC (programmable logic controller) or an artificial intelligence algorithm. The soaking time in the first container 11, the second container 12, and the third container 13 and the drying time in the fourth container 14 can be set through the control panel 8. The movement track of the tray 2 above the base 1 can be controlled according to the type of liquid in the first container 11, the second container 12, and the third container 13. When the first container 11 contains clean water, the second container 12 contains metal cleaner A, and the third container 13 contains metal cleaner B, the sample soaking sequence can be: metal cleaner A→clean water→metal cleaner B→clean water. The tray 2 can be moved to above the second container 12, the first container 11, the third container 13, the first container 11, and the fourth container 14 in sequence along the circular slide rail 4. After each time moving to above a corresponding container, the circular slide rail 4 can be controlled to descend relative to the bottom of the lifting rod 5, so that the sample in the tray 2 can be soaked in each liquid or descended into the fourth container 14 for drying.

[0048] Specifically, the stirring assembly 6 adopts one of a middle-paddle type, a propelling type, a turbine type, or an ultrasonic oscillation type. The stirring assembly 6 includes stirring paddles. The stirring paddles can form a vortex in the slow stirring soaking liquid, so that the sample is fully immersed.

[0049] Specifically, the drying module 9 is one of a drying, an infrared heating, or a hot air module. When the drying module 9 is an infrared heating type, the drying module 9 includes an infrared lamp installed on the inner wall of the fourth container 14. The infrared lamp can release heat energy to dry the sample by selecting a lamp tube with appropriate power.

[0050] Specifically, the tray 2 includes a bottom disc and an end cover. An opening is arranged at the upper end of the bottom disc. The end cover is installed on the upper end of the bottom disc and is used to open or close the opening. The bottom disc is internally provided with a sample containing cavity. The side wall of the bottom disc is provided with a hollow structure that can communicate with the cavity. The bottom disc is connected with the circular slide rail 4.

[0051] Specifically, the bottom of the bottom disc is in a porous mesh structure. The cavity of the bottom disc can be communicated with the outside through the porous mesh structure, so as to facilitate the passing of solution or clean water. The pore size of the bottom of the bottom disc is 20-50 mesh.

[0052] Specifically, the sample pretreatment device for XRF detection of the present application further comprises two parallel and spaced connecting rods 3, and the upper and lower ends of each connecting rod 3 are sequentially connected with the circular slide rail 4 and the base, respectively.

[0053] Specifically, the power module 7 is installed outside the base 1 and is used to control the lifting of the upper end of the lifting rod 5, which can be preferably a screw rod screw lift or an electric push rod.

[0054] Specifically, the circular slide rail 4 is provided with a sliding block connected with the end of the two connecting rods 3 away from the base, and the power module 7 is installed outside the base 1 and can drive the sliding block to move along the circular slide rail 4, and the sliding block drives the tray 2 to rotate along the slide rail 4 through the connecting rod 3. The movement principle of the sliding block can be realized by conventional technical principles, for example, the sliding block can be set as a conventional movable trolley model or other walking mechanism that can move along the circular slide rail 4 according to requirements, and corresponding conductive components are arranged in the circular slide rail 4 to realize the electrical connection between the sliding block and the circular slide rail 4, and the power module 7 provides power to the conductive components in the circular slide rail 4, and the movement of the sliding block is controlled by the control panel 8, and conventional circuit elements can be arranged on the sliding block to realize the conventional electrical connection between the control panel 8 and the sliding block, so that the control panel 8 can control the movement trajectory of the sliding block.

[0055] In use, the sample is placed in the tray 2 and covered with the end cover, and the soaking time of the sample in clean water, metal cleaning agent A, metal cleaning agent B and the drying time in the fourth container 14 are set through the control panel 8, the controller in the control panel 8 controls the lifting rod 5 and the circular slide rail 4 according to the soaking sequence: metal cleaning agent A→clean water→metal cleaning agent B→clean water→drying, so that the tray 2 can be moved and landed in the corresponding container, that is, the sample is moved to the corresponding container according to the preset time, and finally dried in the fourth container 14.

[0056] Other contents of the sample pretreatment device for XRF detection of the present application are described in the prior art, which will not be repeated here.

[0057] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A sample pre-treatment device for use in XRF testing, characterized in that: The device comprises a base, a tray, a lifting rod, a circular slide rail, a drying module and a power module, the base is provided with a first container groove, a second container groove, a third container groove and a fourth container groove arranged in a square shape in sequence clockwise, the first container groove, the second container groove and the third container groove can contain liquid for cleaning and are each provided with a stirring assembly for stirring the liquid, the bottom of each of the first container groove, the second container groove and the third container groove is provided with an openable or closable drain port; the drying module is installed at the fourth container groove and can dry the fourth container groove; The tray is provided with a hollow structure and can place samples inside, the tray is connected with the circular slide rail, the circular slide rail can be lifted relative to the base, the tray can move above the first container groove, the second container groove, the third container groove and the fourth container groove along the circular slide rail according to a preset time; the upper and lower ends of the lifting rod are connected with the circular slide rail and the base in sequence respectively; The power module can provide power for the lifting of the circular slide rail, the relative movement of the tray and the start and stop of each stirring assembly and the drying module.

2. A sample pre-treatment device for XRF detection according to claim 1, characterized in that: A control panel is installed on the outside of the base, which is used to control the start and stop of the circular slide rail, the lifting rod and each stirring assembly.

3. The sample pre-treatment device for XRF detection according to claim 1, characterized in that: The stirring assembly can form a vortex by stirring the liquid.

4. The sample pre-treatment device for XRF detection according to claim 1, characterized in that: The drying module is installed on the inner wall of the fourth container groove.

5. A sample pre-treatment device for XRF detection according to claim 4, characterized in that: The tray comprises a bottom disc and an end cover, the upper end of the bottom disc is provided with an opening, the end cover is installed on the upper end of the bottom disc and is used to open or close the opening, the bottom disc is provided with a sample containing cavity inside, the sidewall of the bottom disc is provided with a hollow structure which can communicate with the cavity, and the bottom disc is connected with the circular slide rail.

6. A sample pre-treatment device for XRF detection according to claim 5, characterized in that: The bottom of the bottom disc is in a porous mesh structure.

7. A sample pre-treatment device for XRF detection according to claim 6, characterized in that: The bottom of the bottom disc is 20-50 mesh.

8. A sample pre-treatment device for XRF detection according to claim 5, characterized in that: The device further comprises two parallel and spaced connecting rods, the upper and lower ends of each connecting rod are connected with the circular slide rail and the bottom disc in sequence respectively.

9. A sample pre-treatment device for XRF detection according to claim 8, characterized in that: The power module is installed on the outside of the base and can control the lifting of the upper end of the lifting rod.

10. A sample pre-treatment device for XRF detection according to claim 8, characterized in that: A sliding block is installed on the circular slide rail, the sliding block is connected with the two connecting rods, and the power module is installed on the outside of the base and can drive the sliding block to move along the circular slide rail.

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