An X-ray fluorescence spectrometer for sample loading

Abstract

This invention discloses an X-ray fluorescence spectrometer for auxiliary sample loading, comprising an instrument body, a sample loading mechanism, a sample transfer mechanism, a sample injection mechanism, and a controller. An injection port is located on one side of the instrument body. The sample loading mechanism, sample transfer mechanism, and sample injection mechanism are all located on the same side of the instrument body where the injection port is located. The sample injection mechanism is positioned at the injection port. The controller is used to drive the sample bottle opening to face the sample holder connected to the sample loading mechanism when the sample loading mechanism drives it, so that the sample holder moves towards the sample bottle and embeds itself into the sample bottle. The controller is also used to control the sample transfer mechanism to rotate the sample bottle back to its original position when the sample holder is embedded in the sample bottle, so that the sample transfer mechanism delivers the oriented sample bottle into the sample injection mechanism. The controller is further used to control the sample injection mechanism to deliver the sample bottle through the injection port into the instrument body for detection. This invention automates the sample loading and injection processes, improving detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of X-ray fluorescence spectrometry, and particularly to an X-ray fluorescence spectrometer for auxiliary sample loading. Background Technology

[0002] X-ray fluorescence spectrometry (XRF) is an instrument used for the qualitative and quantitative analysis of the chemical elemental composition of materials. It is based on the principle of X-ray fluorescence: when a sample is irradiated with high-energy primary X-rays, the atoms in the sample are excited, causing their electrons to transition from one energy level to another. When these excited electrons return to their ground state, they release characteristic X-rays, i.e., X-ray fluorescence. By detecting the energy or wavelength of these X-ray fluorescences and measuring their intensity, the elements present in the sample and their abundance can be determined.

[0003] Before sending the sample into the X-ray fluorescence spectrometer, sample loading is required. First, the sample is placed in the sample holder, then the sample cup is inverted, and the sample holder is inserted into the sample cup. Finally, the sample cup, which holds the sample in place, is inverted back into its correct position and sent into the X-ray fluorescence spectrometer. The entire sample loading process involves manual alignment and installation. The insertion process generally requires multiple repetitions to embed the sample holder into the sample cup, making the process cumbersome, inconvenient, and impacting the overall efficiency of the testing work. Summary of the Invention

[0004] The main objective of this invention is to provide an X-ray fluorescence spectrometer that assists in sample loading, aiming to solve the problems of cumbersome sample loading process, inconvenient operation, and reduced efficiency of the entire detection process.

[0005] To achieve the above objectives, the technical solution proposed by this invention is as follows:

[0006] An X-ray fluorescence spectrometer for auxiliary sample loading includes an instrument body, a sample loading mechanism, a sample transfer mechanism, a sample injection mechanism, and a controller. An injection port is located on one side of the instrument body. The sample loading mechanism, the sample transfer mechanism, and the sample injection mechanism are all located on the side of the instrument body where the injection port is located. The sample transfer mechanism is used to grasp sample vials. The sample loading mechanism is used to drive a sample holder connected to the sample container. The sample injection mechanism is located at the injection port. The controller is electrically connected to the sample loading mechanism, the sample transfer mechanism, and the sample injection mechanism, and is used to... When the sample loading mechanism drives the sample holder loaded with the sample, it controls the sample transfer mechanism to grab and flip the sample bottle, driving the bottle opening to face the sample holder connected to the sample loading mechanism, so that the sample loading mechanism drives the sample holder to move towards the sample bottle and embed the sample holder into the sample bottle; the controller is also used to control the sample transfer mechanism to flip the sample bottle loaded with the sample back to the correct position when the sample holder is embedded in the sample bottle, so that the sample transfer mechanism sends the corrected sample bottle into the sample injection mechanism; the controller is also used to control the sample injection mechanism to send the sample bottle into the instrument body through the sample inlet for detection.

[0007] Preferably, the sample loading mechanism includes a base, a first lifter, and a first connecting seat. The base is located on the side of the instrument body where the sample inlet is located, and the sample transfer mechanism is located above the base. The first lifter is located on the side of the base facing the sample transfer mechanism. The first connecting seat is located on the side of the first lifter away from the base. The output end of the first lifter is driven and connected to the first connecting seat. The first lifter is used to drive the first connecting seat to move vertically so that the first connecting seat is close to the sample transfer mechanism. A protrusion is provided on the side of the first connecting seat away from the first lifter. The protrusion is used to insert into the groove at the bottom of the sample holder so that the protrusion supports the sample holder in a horizontal position. The controller is electrically connected to the first lifter. When the protrusion supports the sample holder loaded with the sample in a horizontal position, the controller controls the first lifter to drive the protrusion through the first connecting seat so that the protrusion drives the sample holder closer to the sample transfer mechanism.

[0008] Preferably, the sample transfer mechanism includes a horizontal moving module, a clamping module, a second connecting seat, and two flipping modules. The horizontal moving module is disposed on the side of the instrument body where the sample inlet is located, and is positioned above the base. The clamping module is located between the horizontal moving module and the base, and its output end is driven to connect to the clamping module via the second connecting seat. The two flipping modules are disposed on the side of the clamping module opposite to the horizontal moving module, and their output ends are driven to connect to each other, forming a fixed space between them. The fixed space is used to accommodate sample bottles; the controller is electrically connected to the horizontal moving module, the clamping module and the two flipping modules respectively. The controller is used to control the clamping module to drive the two flipping modules to move closer together so that the two flipping modules clamp and fix the sample bottle in the fixed space; the controller is also used to control the two flipping modules to drive the sample bottle to flip after the two flipping modules clamp and fix the sample bottle so that the bottle mouth is aligned with the sample holder; the controller is used to control the horizontal moving module and the two flipping modules respectively after the sample holder is embedded in the sample bottle so that the sample bottle that has been flipped back to the correct position is sent into the sample feeding mechanism.

[0009] Preferably, the horizontal movement module includes a first track, a first electrically controlled slide, and a third lifter. The first track is disposed on the side of the instrument body where the sample inlet is located, and the first track is positioned above the base. The first electrically controlled slide is located on the side of the first track facing the base and is slidably connected to the first track. The third lifter is disposed on the side of the first electrically controlled slide facing the base, and the output end of the third lifter is driven to connect to the clamping module through the first connecting seat. The controller is electrically connected to the first electrically controlled slide and the third lifter respectively. The controller is used to control the first electrically controlled slide to drive the clamping module to slide along the first track, so that the third lifter cooperates with the first electrically controlled slide to send the sample bottle into the sample injection mechanism.

[0010] Preferably, the clamping module includes an electric lead screw, two slides, and two connecting frames. The output end of the horizontal movement module is driven to connect to the electric lead screw via the second connecting seat. The electric lead screw is driven to connect to the two slides. The two connecting frames are located on the side of the electric lead screw away from the second connecting seat. The two flipping modules are located between the two connecting frames. The fixed space is located between the two flipping modules. One slide is driven to connect to one flipping module via one connecting frame, and the other slide is driven to connect to the other flipping module via the other connecting frame. The controller is electrically connected to the electric lead screw and is used to control the electric lead screw to drive the two flipping modules to move towards the fixed space via the two connecting frames, so that the two flipping modules fix the sample bottle in the fixed space.

[0011] Preferably, the flipping module includes a third connecting seat, a first servo motor, and a pressure plate. The first servo motor is disposed on the side of the third connecting seat facing the fixed space, and the pressure plate is disposed on the side of the first servo motor away from the third connecting seat. The output end of the first servo motor is connected to the pressure plate. The clamping module drives the two third connecting seats and drives the two pressure plates through the two third connecting seats to clamp and fix the sample bottle located in the fixed space. The controller is electrically connected to the two first servo motors and controls the two first servo motors when the two pressure plates clamp and fix the sample bottle, so that the two first servo motors drive the sample bottle clamped and fixed by the two pressure plates to flip.

[0012] Preferably, the sample introduction mechanism includes a linear motor and a positioning plate. The linear motor passes through the sample inlet and is driven by the positioning plate. A positioning groove is provided on the side of the positioning plate away from the linear motor, and the positioning groove is used to accommodate the sample vial after it has been loaded with the sample. The controller is electrically connected to the linear motor. The controller is used to control the linear motor to drive the positioning plate to move away from the instrument body when the sample transfer mechanism drives the sample vial after it has been loaded with the sample close to the sample inlet, so that the sample transfer mechanism can send the sample vial after it has been loaded with the sample into the positioning groove. The controller is also used to control the linear motor to drive the positioning plate after it has been loaded with the sample into the positioning groove, so that the sample vial after it has been loaded with the sample is sent into the instrument body through the sample inlet.

[0013] Preferably, a storage box is also provided on one side of the instrument body where the sample inlet is located. The storage box is located on the side of the sample loading mechanism away from the sample inlet, and the storage box is used to store sample bottles and sample trays respectively.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The staff places the sample holder containing the sample into the sample loading mechanism and then loads the sample bottle into the sample transfer mechanism. The sample loading mechanism and the sample transfer mechanism work together to embed the sample holder into the sample bottle. Then, the sample transfer mechanism and the sample injection mechanism work together to send the sample bottle loaded with the sample into the main body of the instrument so that the main body of the instrument can complete the detection work. This automates the sample loading and injection process and improves the detection efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the X-ray fluorescence spectrometer for auxiliary sample loading according to the present invention;

[0018] Figure 2 for Figure 1 Top view of the structure;

[0019] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0020] Explanation of icon numbers:

[0021] 1-Instrument body; 11-Camera; 12-Second track; 13-Second electrically controlled slide; 14-Storage box; 15-Sample inlet;

[0022] 2-Sample loading mechanism; 21-Base; 22-First lifter; 23-First connecting seat; 24-Protrusion; 25-Second servo motor;

[0023] 3-Sample transfer mechanism; 31-Second connecting seat; 32-Fixed space;

[0024] 4-Sample feeding mechanism; 41-Linear motor; 42-Positioning plate; 43-Positioning groove;

[0025] 5-Horizontal movement module; 51-First track; 52-First electrically controlled slide; 53-Third lifting device;

[0026] 6-Clamping module; 61-Electric lead screw; 62-Slide table; 63-Connecting frame; 64-Second lifting device; 65-Limit plate;

[0027] 7-Flip module; 71-Third connector; 72-First servo motor; 73-Pressure plate;

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their 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.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0034] This invention proposes an X-ray fluorescence spectrometer for auxiliary sample loading.

[0035] like Figures 1 to 3An X-ray fluorescence spectrometer for auxiliary sample loading is shown, comprising an instrument body 1, a sample loading mechanism 2, a sample transfer mechanism 3, a sample injection mechanism 4, and a controller. An inlet 15 is provided on one side of the instrument body 1. The sample loading mechanism 2, the sample transfer mechanism 3, and the sample injection mechanism 4 are all located on the side of the instrument body 1 where the inlet 15 is located. The sample transfer mechanism 3 is used to grasp sample vials; the sample loading mechanism 2 is used to drive the sample holder connected to the sample container; the sample injection mechanism 4 is located at the inlet 15; the controller is electrically connected to the sample loading mechanism 2, the sample transfer mechanism 3, and the sample injection mechanism 4 respectively. When the sample loading mechanism 2 drives the sample holder connected to the sample container, it controls the transfer mechanism 3 to grab and flip the sample bottle, driving the bottle opening to face the sample holder connected to the sample loading mechanism 2, so that the sample loading mechanism 2 drives the sample holder to move towards the sample bottle and embed the sample holder into the sample bottle; the controller is also used to control the transfer mechanism 3 to flip the sample bottle loaded with the sample back to the correct position when the sample holder is embedded in the sample bottle, so that the transfer mechanism 3 sends the corrected sample bottle into the injection mechanism 4; the controller is also used to control the injection mechanism 4 to send the sample bottle into the instrument body 1 through the injection port 15 for detection.

[0036] The staff places the sample holder containing the sample into the sample loading mechanism 2 and loads the sample bottle into the sample transfer mechanism 3, so that the sample loading mechanism 2 and the sample transfer mechanism 3 work together to embed the sample holder into the sample bottle. Then, the sample transfer mechanism 3 and the sample injection mechanism 4 work together to send the sample bottle loaded with the sample into the instrument body 1, so that the instrument body 1 can complete the detection work, realize the automation of the sample loading and injection process, and improve the detection efficiency.

[0037] Specifically, after the sample bottle is fed into the instrument body 1, the robotic arm inside the instrument body 1 picks up the sample bottle and places it in its designated position, or the robotic arm can directly place the sample bottle in the detection position. The existing robotic arm, placement area, and detection position inside the instrument body 1 are common technical solutions and will not be described in detail here.

[0038] The sample loading mechanism 2 includes a base 21, a first lifter 22, and a first connecting seat 23. The base 21 is located on the side of the instrument body 1 where the sample inlet 15 is located, and the sample transfer mechanism 3 is located above the base 21. The first lifter 22 is located on the side of the base 21 facing the sample transfer mechanism 3. The first connecting seat 23 is located on the side of the first lifter 22 away from the base 21. The output end of the first lifter 22 is driven to connect to the first connecting seat 23. The first lifter 22 is used to drive the first connecting seat 23 to move vertically so that the first connecting seat 23 is close to the sample transfer mechanism 3. A protrusion 24 is provided on the side of the first connecting seat 23 away from the first lifter 22. The protrusion 24 is used to insert into the groove at the bottom of the sample holder so that the protrusion 24 supports the sample holder to be set horizontally. The controller is electrically connected to the first lifter 22. When the protrusion 24 supports the sample holder loaded with the sample to be set horizontally, the controller controls the first lifter 22 to drive the protrusion 24 through the first connecting seat 23 so that the protrusion 24 drives the sample holder to be close to the sample transfer mechanism 3. The first lifter 22 is fixed to the outside of the instrument body 1 via the base 21, and drives the sample holder to rise and fall vertically via the protrusion 24 of the first connecting column, so that the first lifter 22 and the sample transfer mechanism 3 cooperate to embed the sample holder into the sample bottle, thereby realizing the automated installation of the sample.

[0039] Specifically, a second servo motor 25 is installed on the side of the base 21 facing the first lifter 22. The second servo motor 25 drives and connects to the first lifter 22. The second servo motor 25 is used to drive the sample holder located on the protrusion 24 to rotate horizontally through the first lifter 22 so that the sample holder is aligned with the sample bottle. A camera 11 and a second track 12 are also installed on the side of the instrument body 1 where the sample inlet 15 is located. The second track 12 is set vertically and is located between the base 21 and the instrument body 1. A second electrically controlled slide 13 is slidably installed on the second track 12. The second electrically controlled slide 13 is driven and connected to the camera 11. The camera 11 is electrically connected to a controller. The controller is used to control the second electrically controlled slide 13. The slide block 13 drives the camera 11 to acquire a first image of the sample bottle and a second image of the sample holder, respectively, and sends the first and second images to the controller. The controller identifies a first feature area of ​​the sample bottle based on the first image and a second feature area of ​​the sample holder based on the second image, and determines whether the sample bottle and sample holder are aligned based on the first and second feature areas. When the sample bottle and sample holder are aligned, the controller controls the first lifter 22 to embed the sample holder into the sample bottle. When the sample bottle and sample holder are not aligned, the controller controls the second servo motor 25 to drive the sample holder to rotate horizontally until the sample bottle and sample holder are aligned, and then controls the first lifter 22 to embed the sample holder into the sample bottle. Through the cooperation of the camera 11 and the second servo motor 25, automatic alignment of the sample holder and sample is achieved, further simplifying the operation and improving the sample loading efficiency.

[0040] Specifically, the first characteristic area is the groove on the side wall of the sample bottle; the second characteristic area is the half groove on the top side of the sample holder.

[0041] Specifically, the controller is also used to determine the position of the sample bottle's opening based on the first image. When the bottle opening is downward, it executes the steps of identifying the first feature area of ​​the sample bottle based on the first image and the second feature area of ​​the sample holder based on the second image. When the bottle opening is upward, it controls the sample transfer mechanism 3 to flip the sample bottle, and then executes the steps of identifying the first feature area of ​​the sample bottle based on the first image and the second feature area of ​​the sample holder based on the second image. This achieves automatic flipping of the sample bottle, further simplifying the steps for staff to feed the sample bottle into the sample transfer mechanism 3.

[0042] The sample transfer mechanism 3 includes a horizontal moving module 5, a clamping module 6, a second connecting seat 31, and two flipping modules 7. The horizontal moving module 5 is located on the side of the instrument body 1 where the sample inlet 15 is located, and is positioned above the base 21. The clamping module 6 is located between the horizontal moving module 5 and the base 21, and its output end is driven to connect to the clamping module 6 via the second connecting seat 31. The two flipping modules 7 are located on the side of the clamping module 6 opposite to the horizontal moving module 5, and their output ends are driven to connect to the two flipping modules 7, forming a fixed connection between them. Space 32, fixed space 32 is used to accommodate sample bottles; the controller is electrically connected to the horizontal moving module 5, the clamping module 6 and the two flipping modules 7 respectively. The controller is used to control the clamping module 6 to drive the two flipping modules 7 to move closer together so that the two flipping modules 7 clamp and fix the sample bottle in the fixed space 32; the controller is also used to control the two flipping modules 7 to drive the sample bottle to flip after the sample bottle is clamped and fixed, so that the bottle mouth of the sample bottle is aligned with the sample holder; the controller is used to control the horizontal moving module 5 and the two flipping modules 7 respectively after the sample holder is embedded in the sample bottle, so that the sample bottle that has been flipped back to the correct position is sent into the sample injection mechanism 4.

[0043] The horizontal movement module 5 includes a first track 51, a first electrically controlled slide 52, and a third lifter 53. The first track 51 is located on the side of the instrument body 1 where the sample inlet 15 is located, and is positioned above the base 21. The first electrically controlled slide 52 is located on the side of the first track 51 facing the base 21 and is slidably connected to the first track 51. The third lifter 53 is located on the side of the first electrically controlled slide 52 facing the base 21, and its output end is driven to connect to the clamping module 6 via a first connecting seat 23. A controller is electrically connected to both the first electrically controlled slide 52 and the third lifter 53. The controller controls the first electrically controlled slide 52 to drive the clamping module to slide along the first track 51, so that the third lifter 53 cooperates with the first electrically controlled slide 52 to deliver the sample vial into the sample injection mechanism 4. The cooperation of the first track 51 and the second electrically controlled slide 53 enables the clamping module 6 and the two flipping modules 7 to move freely between the base 21 and the sample injection mechanism 4.

[0044] Specifically, the first track 51 is set horizontally.

[0045] The clamping module 6 includes an electric lead screw 61, two slides 62, and two connecting frames 63. The output end of the horizontal movement module 5 is driven to connect to the electric lead screw 61 via a second connecting seat 31. The electric lead screw 61 drives and connects to the two slides 62. The two connecting frames 63 are located on the side of the electric lead screw 61 away from the second connecting seat 31. Two flipping modules 7 are located between the two connecting frames 63. The fixing space 32 is located between the two flipping modules 7. One slide 62 is driven to connect to one flipping module 7 via one connecting frame 63, and the other slide 62 is driven to connect to the other flipping module 7 via the other connecting frame 63. The controller is electrically connected to the electric lead screw 61 and controls the electric lead screw 61 to drive the two flipping modules 7 to move towards the fixing space 32 via the two connecting frames 63, so that the two flipping modules 7 fix the sample bottle in the fixing space 32. The electric lead screw 61 drives and connects to the two flipping modules 7 via the two slides and the two connecting frames 63, realizing the function of clamping and fixing the sample through the two flipping modules 7.

[0046] Specifically, the clamping module 6 also includes a second lifter 64 and a limiting plate 65. The limiting plate 65 is located between the fixed space 32 and the electric lead screw 61. The second lifter 64 is positioned on the side of the electric lead screw 61 facing the limiting plate 65. The output end of the second lifter 64 is connected to the limiting plate 65, and the second lifter 64 is used to drive the limiting plate 65 to move towards the fixed space 32. The controller is electrically connected to the second lifter 64, and the controller is used to control the second lifter 64 to drive the limiting plate 65 to abut against the bottom of the sample bottle when the first lifter 22 drives the sample holder to embed into the sample bottle. The embedding of the sample holder into the sample bottle requires a certain amount of pressure. The cooperation of the second lifter 64 and the limiting plate 65 achieves the limiting of the sample bottle, preventing the sample and the two flipping mechanisms from separating during the embedding process.

[0047] The flipping module 7 includes a third connecting seat 71, a first servo motor 72, and a pressure plate 73. The first servo motor 72 is located on the side of the third connecting seat 71 facing the fixed space 32, and the pressure plate 73 is located on the side of the first servo motor 72 away from the third connecting seat 71. The output end of the first servo motor 72 is connected to the pressure plate 73. The clamping module 6 drives the two third connecting seats 71 and drives the two pressure plates 73 through the two third connecting seats 63 to clamp and fix the sample bottle located in the fixed space 32. The controller is electrically connected to the two first servo motors 72 and controls the two first servo motors 72 when the two pressure plates 73 clamp and fix the sample bottle, so that the two first servo motors 72 drive the two pressure plates 73 to flip the sample bottle. After the pressure plate 73 abuts against the sample bottle, the first servo motor 72 rotates the pressure plate 73 to flip the sample bottle, thereby realizing the filling and injection of the sample bottle.

[0048] The sample introduction mechanism 4 includes a linear motor 41 and a positioning plate 42. The linear motor 41 passes through the sample inlet 15 and drives the positioning plate 42. The positioning plate 42 has a positioning groove 43 on the side away from the linear motor 41. The positioning groove 43 is used to accommodate the sample bottle after it has been loaded with the sample. The controller is electrically connected to the linear motor 41. When the sample transfer mechanism 3 drives the sample bottle after it has been loaded with the sample close to the sample inlet 15, the controller controls the linear motor 41 to drive the positioning plate 42 to move to the end away from the instrument body 1, so that the sample transfer mechanism 3 can send the sample bottle after it has been loaded with the sample into the positioning groove 43. The controller is also used to control the linear motor 41 to drive the positioning plate 42 after it has been loaded with the sample into the positioning groove 43, so that the sample bottle after it has been loaded with the sample is sent into the instrument body 1 through the sample inlet 15. The linear motor 41 passes through the sample inlet 15, so that part of the linear motor 41 is located inside the instrument body 1 and the other part is located outside the instrument body 1. Thus, the sample bottle is sent into the instrument body 1 after the sample is loaded through the positioning plate 42, which facilitates the gripping and movement of the sample bottle by the robot arm inside the instrument body 1 after the sample is loaded.

[0049] A storage box 14 is also provided on one side of the instrument body 1 where the sample inlet 15 is located. The storage box 14 is located on the side of the sample loading mechanism 2 away from the sample inlet 15. The storage box 14 is used to store sample bottles and sample holders respectively.

[0050] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An X-ray fluorescence spectrometer for auxiliary sample loading, characterized in that, The instrument includes a main body, a sample loading mechanism, a sample transfer mechanism, a sample injection mechanism, and a controller. A sample inlet is located on one side of the main body. The sample loading mechanism, the sample transfer mechanism, and the sample injection mechanism are all located on the same side of the main body where the sample inlet is located. The sample transfer mechanism is used to grasp sample vials. The sample loading mechanism is used to drive a sample holder that is connected to the sample container. The sample injection mechanism is located at the sample inlet. The controller is electrically connected to the sample loading mechanism, the sample transfer mechanism, and the sample injection mechanism, and is used to control the sample loading mechanism when it is driven. When connecting the sample holder loaded with samples, the controller controls the sample transfer mechanism to grasp and flip the sample bottle, driving the bottle opening to face the sample holder connected to the sample loading mechanism, so that the sample loading mechanism drives the sample holder to move towards the sample bottle and embed the sample holder into the sample bottle; the controller is also used to control the sample transfer mechanism to flip the sample bottle loaded with samples back to its original position when the sample holder is embedded in the sample bottle, so that the sample transfer mechanism sends the uprighted sample bottle into the sample injection mechanism; the controller is also used to control the sample injection mechanism to send the sample bottle into the instrument body through the sample inlet for detection. The sample loading mechanism includes a base, a first lifter, and a first connecting seat. The base is located on the side of the instrument body where the sample inlet is located, and the sample transfer mechanism is located above the base. The first lifter is located on the side of the base facing the sample transfer mechanism. The first connecting seat is located on the side of the first lifter away from the base. The output end of the first lifter is driven and connected to the first connecting seat. The first lifter is used to drive the first connecting seat to move vertically so that the first connecting seat is closer to the sample transfer mechanism. A protrusion is provided on the side of the first connecting seat away from the first lifter. The protrusion is used to insert into a groove at the bottom of the sample holder so that the protrusion supports the sample holder in a horizontal position. A controller is electrically connected to the first lifter. When the protrusion supports the sample holder loaded with the sample in a horizontal position, the controller controls the first lifter to drive the protrusion through the first connecting seat so that the protrusion drives the sample holder closer to the sample transfer mechanism. The sample transfer mechanism includes a horizontal moving module, a clamping module, a second connecting seat, and two flipping modules. The horizontal moving module is located on the side of the instrument body where the sample inlet is located, and is positioned above the base. The clamping module is located between the horizontal moving module and the base, and its output end is driven to connect to the clamping module via the second connecting seat. The two flipping modules are located on the side of the clamping module opposite to the horizontal moving module, and their output ends are driven to connect to each other, forming a fixed space between them. The fixed space is used to accommodate sample bottles; the controller is electrically connected to the horizontal moving module, the clamping module, and the two flipping modules respectively. The controller is used to control the clamping module to drive the two flipping modules to move closer together, so that the two flipping modules clamp and fix the sample bottle in the fixed space; the controller is also used to control the two flipping modules to drive the sample bottle to flip after the two flipping modules clamp and fix the sample bottle, so that the bottle mouth of the sample bottle is aligned with the sample holder; the controller is used to control the horizontal moving module and the two flipping modules respectively after the sample holder is embedded in the sample bottle, so that the sample bottle that has been flipped back to the correct position is sent into the sample feeding mechanism; The sample introduction mechanism includes a linear motor and a positioning plate. The linear motor passes through the sample inlet and is connected to the positioning plate. A positioning groove is provided on the side of the positioning plate away from the linear motor, and the positioning groove is used to accommodate the sample vial after it has been loaded with the sample. The controller is electrically connected to the linear motor. The controller is used to control the linear motor to drive the positioning plate to move away from the instrument body when the sample transfer mechanism drives the sample vial after it has been loaded with the sample close to the sample inlet, so that the sample transfer mechanism can send the sample vial after it has been loaded with the sample into the positioning groove. The controller is also used to control the linear motor to drive the positioning plate after it has been loaded with the sample into the positioning groove, so that the sample vial after it has been loaded with the sample is sent into the instrument body through the sample inlet.

2. The X-ray fluorescence spectrometer for auxiliary sample loading according to claim 1, characterized in that, The horizontal movement module includes a first track, a first electrically controlled slide, and a third lifter. The first track is located on the side of the instrument body where the sample inlet is located, and is positioned above the base. The first electrically controlled slide is located on the side of the first track facing the base and is slidably connected to the first track. The third lifter is located on the side of the first electrically controlled slide facing the base, and its output end is driven to the clamping module via the first connecting seat. The controller is electrically connected to the first electrically controlled slide and the third lifter, respectively. The controller is used to control the first electrically controlled slide to drive the clamping module to slide along the first track, so that the third lifter cooperates with the first electrically controlled slide to deliver the sample vial into the sample injection mechanism.

3. The X-ray fluorescence spectrometer for auxiliary sample loading according to claim 1, characterized in that, The clamping module includes an electric lead screw, two slides, and two connecting frames. The output end of the horizontal movement module is driven to connect to the electric lead screw via the second connecting seat. The electric lead screw is driven to connect to the two slides. The two connecting frames are located on the side of the electric lead screw away from the second connecting seat. The two flipping modules are located between the two connecting frames. The fixed space is located between the two flipping modules. One slide is driven to connect to one flipping module via one connecting frame, and the other slide is driven to connect to the other flipping module via the other connecting frame. The controller is electrically connected to the electric lead screw and is used to control the electric lead screw to drive the two flipping modules to move towards the fixed space via the two connecting frames, so that the two flipping modules fix the sample bottle in the fixed space.

4. The X-ray fluorescence spectrometer for auxiliary sample loading according to claim 1, characterized in that, The flipping module includes a third connecting seat, a first servo motor, and a pressure plate. The first servo motor is located on the side of the third connecting seat facing the fixed space, and the pressure plate is located on the side of the first servo motor away from the third connecting seat. The output end of the first servo motor is connected to the pressure plate. The clamping module is driven by two third connecting seats and is used to drive two pressure plates through the two third connecting seats to clamp and fix the sample bottle located in the fixed space. The controller is electrically connected to the two first servo motors and is used to control the two first servo motors when the two pressure plates clamp and fix the sample bottle, so that the two first servo motors drive the sample bottle clamped and fixed by the two pressure plates to flip.

5. An X-ray fluorescence spectrometer for auxiliary sample loading according to claim 1, characterized in that, A storage box is also provided on one side of the instrument body where the sample inlet is located. The storage box is located on the side of the sample loading mechanism away from the sample inlet, and is used to store sample bottles and sample trays respectively.

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