A high-performance intelligent X-ray fluorescence spectrometer

Abstract

This invention discloses a high-performance intelligent X-ray fluorescence spectrometer, comprising: a main body with a sample chamber fixing plate and a placement port on the sample chamber fixing plate; a sample supply box, including an automatic sample supply box and a manual sample supply box; an optical path configuration device including a second cavity disposed on the sample chamber fixing plate, wherein one end of the second cavity corresponds to the sample; and a collimation and filter optical path combination switching device including a collimator switching component and a filter switching component disposed on both sides of the second cavity, wherein the collimator switching component and the filter switching component are obliquely disposed on the main body. A controller is used to identify whether the automatic or manual sample supply box is mounted on the sample chamber fixing plate, and based on the identification result, determines the automatic or manual sample measurement mode, controls the optical path configuration device to provide the optical path, controls the collimation and filter optical path combination switching device to collimate and filter the optical path, and displays the corresponding mode's operation interface on the operation screen. This spectrometer can effectively improve detection efficiency.

Description

Technical Field

[0001] This invention belongs to the field of energy dispersive X-ray fluorescence spectroscopy detection technology, specifically relating to a high-performance intelligent X-ray fluorescence spectrometer. Background Technology

[0002] The RoHS Directive, which restricts the use of certain hazardous substances in electrical and electronic equipment, is driving increasing demand from industries such as precious metal processing and jewelry manufacturing, banking, jewelry sales and testing institutions, and electroplating. This necessitates continuous performance improvements in our instruments and equipment to meet customer needs. For example, some irregularly shaped products require manual operation, while regular products can be tested automatically. Both methods require manual control, suffer from poor optical path control, and have low testing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a high-performance intelligent X-ray fluorescence spectrometer that can intelligently identify the current mode and switch the working interface, greatly reducing the difficulty of system operation and improving detection efficiency.

[0004] This invention provides a high-performance intelligent X-ray fluorescence spectrometer, comprising:

[0005] The machine body is provided with a sample chamber fixing plate, and the sample chamber fixing plate is provided with a placement port;

[0006] The sample supply box includes an automatic sample supply box and a manual sample supply box. The manual sample supply box includes a first chamber and a second chamber. The bottom of the first chamber forms a groove that is recessed inward along the bottom, and the top of the second chamber is embedded in the groove. The top wall and the four side walls of the first chamber and the four side walls of the second chamber are provided with a protective material layer for shielding X-rays. The sample supply box is used to be installed on the sample chamber fixing plate and to supply samples to the placement port.

[0007] An optical path configuration device includes a second cavity disposed on the sample cavity fixing plate, wherein one end of the second cavity corresponds to the sample and is used to provide an optical path for the sample;

[0008] The collimation and filtering optical path combination switching device includes a collimator switching assembly and a filter switching assembly disposed on both sides of the second cavity, wherein the collimator switching assembly and the filter switching assembly are obliquely disposed on the body for collimating and filtering the optical path within the second cavity;

[0009] The controller is used to identify the automatic or manual sample feeding box installed on the sample chamber fixing plate, and based on the identification result, determine the automatic or manual sample measurement mode, control the optical path configuration device to provide the optical path, control the collimation and filtering optical path combination switching device to collimate and filter the optical path, and display the corresponding mode operation interface on the operation screen.

[0010] According to one embodiment of the present invention, the automatic sample dispenser includes:

[0011] The housing has a through hole at its top for conveying samples and a receiving cavity formed inside the housing.

[0012] A base plate is fixed inside the receiving cavity. The base plate has a first cavity with an opening at one end. The opening of the first cavity corresponds to the through hole. The first cavity is used to install a sample cup.

[0013] A door cover plate is disposed in the receiving cavity. One end of the door cover plate is rotatably connected to the bottom plate, and the other end faces the through hole. When the door cover plate rotates, it seals or opens the through hole.

[0014] According to one embodiment of the present invention, the automatic sample dispenser further includes:

[0015] Mounting base, provided on the base plate;

[0016] A drive mechanism, mounted on the mounting base and connected to the door cover plate, is used to drive the door cover plate to rotate;

[0017] A first photoelectric switch is mounted on the mounting base and connected to the drive mechanism to provide a switching signal;

[0018] The first photoelectric switch is electrically connected to the controller, which controls the operation of the drive mechanism to make the door cover plate seal or open the through hole.

[0019] According to one embodiment of the present invention, the optical path configuration device includes:

[0020] An X-ray source assembly is disposed on the sample chamber fixing plate, with its laser emitting end facing into the second cavity and aligned with the placement port, for providing an X-ray source to excite the sample;

[0021] A camera assembly is disposed inside the second cavity and faces the placement opening for observing the sample being tested;

[0022] A light source assembly is disposed within the second cavity and faces the placement opening, for providing a light source;

[0023] A detector assembly, one end of which is disposed within the second cavity and connected to the X-ray source assembly, the camera assembly, and the light source, is used to receive and feed back signals to the controller.

[0024] According to one embodiment of the present invention, a mesh ring assembly is provided at the placement opening for placing the sample.

[0025] According to one embodiment of the present invention, the collimator switching component includes:

[0026] The first stepper motor is fixed to the machine body;

[0027] The first slide rail is fixed to the machine body;

[0028] The collimator is slidably connected to the first slide rail and to the first stepper motor, and slides along the first slide rail under the drive of the first stepper motor.

[0029] According to one embodiment of the present invention, the collimator switching component further includes:

[0030] The second photoelectric switch is connected to the first stepper motor and is used to control the start and stop of the first stepper motor;

[0031] The collimator switches the light-blocking plate to trigger the activation of the second photoelectric switch.

[0032] According to one embodiment of the present invention, the filter switching assembly includes:

[0033] The second stepper motor is fixed to the machine body;

[0034] The second slide rail is fixed to the machine body;

[0035] A filter mounting plate is slidably connected to the second slide rail and to the second stepper motor. Driven by the second stepper motor, it slides along the second slide rail to mount the filter.

[0036] According to one embodiment of the present invention, the filter switching assembly further includes:

[0037] The third photoelectric switch is connected to the second stepper motor and is used to control the start and stop of the second stepper motor;

[0038] The filter switches the light-blocking plate to trigger the activation of the third photoelectric switch.

[0039] According to one embodiment of the present invention, the filter mounting plate is provided with different combinations of filters.

[0040] The energy-dispersive X-ray fluorescence spectrometer with intelligent switching between automatic and manual modes according to embodiments of the present invention has at least the following advantages:

[0041] The high-performance intelligent X-ray fluorescence spectrometer according to embodiments of the present invention combines X-ray radiation shielding technology, energy dispersion manual / automatic sample feeding switching technology, ultra-close optical path configuration technology, and high-precision collimation filter linear combination switching technology, which greatly reduces the difficulty of system operation, improves detection accuracy, and significantly increases detection efficiency. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the manual sample feeding box according to an embodiment of the present invention;

[0043] Figure 2 This is another structural diagram of the manual sample feeding box according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the automatic sample feeding box according to an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the internal structure of the automatic sample feeding box according to an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of the automatic sample dispenser combined with the machine body according to an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the automatic sample box equipped with an 85-position sample introduction system and a host unit in the automatic sample feeding mode of energy dispersive X-ray fluorescence spectroscopy according to an embodiment of the present invention.

[0048] Figure 7 This is a schematic diagram of the internal structure of the optical path configuration device according to an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram of the external structure of the optical path configuration device according to an embodiment of the present invention;

[0050] Figure 9 This is a schematic diagram of the optical path configuration device according to another embodiment of the present invention;

[0051] Figure 10 This is a schematic diagram of the collimator switching assembly according to an embodiment of the present invention;

[0052] Figure 11 This is a schematic diagram of the filter switching assembly according to an embodiment of the present invention.

[0053] Attached Figure

[0054] Body 10; Sample chamber fixing plate 11;

[0055] Automatic sample feeding box 21; housing 211; base plate 212; first cavity 213; communication unit 214; door cover 215; mounting base 216; drive mechanism 217; first photoelectric switch 218;

[0056] Manual sample feeding box 22; First chamber 221; Second chamber 222; Protective material layer 223; Light source 224; Gas support 225; Upper chamber 226; Lower chamber 227;

[0057] Sample introduction system 30;

[0058] Sample cup 40;

[0059] X-ray source assembly 51; camera assembly 52; light source assembly 53; detector assembly 54; mesh assembly 55; second cavity 56;

[0060] Collimator switching assembly 60; first stepper motor 61; first slide rail 62; collimator 63; second photoelectric switch 64; collimator switching light shield 65;

[0061] Filter switching assembly 70; second stepper motor 71; second slide rail 72; filter mounting plate 73; third photoelectric switch 74; filter switching shield 75. Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] The following is in conjunction with the appendix Figures 1 to 11 The high-performance intelligent X-ray fluorescence spectrometer of the present invention will be described in the following embodiment.

[0064] like Figures 1 to 11 As shown, the high-performance intelligent X-ray fluorescence spectrometer includes a main body 10, a sample supply box, an optical path configuration device, a collimation filter optical combination switching device, and a controller.

[0065] The machine body 10 is equipped with a sample chamber fixing plate 11, which has a placement opening. The sample supply box includes an automatic sample supply box 21 and a manual sample supply box 22. The manual sample supply box 22 includes a first chamber 221 and a second chamber 222. The bottom of the first chamber 221 forms a groove that is recessed inwards along the bottom, and the top of the second chamber 222 is embedded in the groove. The top and side walls of the first chamber 221, as well as the side walls of the second chamber 222, are all provided with a protective material layer 223 for shielding X-rays. The sample supply box is used to mount on the sample chamber fixing plate 11 and supply samples to the placement opening. The optical path configuration device includes a second cavity 56 disposed on the sample chamber fixing plate 11, with one end of the second cavity 56 corresponding to the sample, used to provide an optical path for the sample. The collimation and filter optical path combination switching device includes a collimator switching assembly 60 and a filter switching assembly 70 disposed on both sides of the second cavity 56. The collimator switching assembly 60 and the filter switching assembly 70 are obliquely disposed on the body 10 for collimating and filtering the optical path within the second cavity 56. The controller identifies the automatic sample feeder 21 or the manual sample feeder 22 installed on the sample chamber fixing plate 11, and determines the automatic or manual sample measurement mode based on the identification result. The controller also controls the optical path configuration device to provide the optical path, controls the collimation and filter optical path combination switching device for collimating and filtering the optical path, and displays the corresponding mode's operation interface on the operation screen.

[0066] In other words, for small, regular samples requiring batch testing, an automatic sample feeding mode can be selected. The automatic sample feeding box 21 is placed on the main unit 10, the sample injection system 30 is positioned in the corresponding location, and sample injection is performed. The controller can identify the automatic sample feeding box 21 and determine that it is in automatic sample feeding mode, then adjusts the operation screen to automatic sample feeding mode for user convenience. For irregularly shaped, single-variety samples, a manual sample feeding mode can be selected. For example, a manual sample feeding box 22 is used to load the sample. The controller identifies the manual sample feeding box 22 and controls the operation screen to manual sample feeding mode. The controller can communicate with both the automatic and manual sample feeding boxes 21 and 22. The automatic and manual sample feeding boxes 21 and 22 can actively inform the controller which mode to use, or the controller can communicate with the identification module, which can identify whether it is in manual or automatic mode based on the box's shape and structure. Alternatively, it can determine whether the automatic or manual sample feeding box 21 or 22 is being used based on changes in the resistance of the connected interface. Furthermore, by combining X-ray radiation shielding technology, ultra-close optical path configuration technology, and high-precision collimation filter linear combination switching technology, the system operation difficulty is greatly reduced, which not only improves the accuracy of detection but also significantly increases the efficiency of detection.

[0067] In embodiments of the present invention, such as Figure 1 and Figure 2As shown, the manual sample feeding box 22 includes an upper box 226 and a lower box 227. The first chamber 221 is located in the upper box 226, and the second chamber 222 is located in the lower box 227. The two boxes facilitate disassembly and installation.

[0068] According to one embodiment of the present invention, the automatic sample dispenser 21 includes a housing 211, a base plate 212, and a door cover 215. The housing 211 has a through hole for conveying samples at its top end, and a receiving cavity is formed within the housing 211. The base plate 212 is fixed within the receiving cavity, and a first cavity 213 with one open end is provided on the base plate 212. The opening of the first cavity 213 corresponds to the through hole, and a sample cup 40 is installed within the first cavity 213. The door cover 215 is disposed within the receiving cavity, with one end rotatably connected to the base plate 212 and the other end facing the through hole. When the door cover 215 rotates, it seals or opens the through hole. This structure facilitates the opening and closing of the door cover 215, and facilitates sample injection.

[0069] In one embodiment of the present invention, a communication unit 214 is also provided outside the housing for connecting to the controller and transmitting signals.

[0070] According to one embodiment of the present invention, the automatic sample dispenser 21 further includes a mounting base 216, a drive mechanism 217, and a first photoelectric switch 218. The mounting base 216 is disposed on a base plate 212. The drive mechanism 217 is mounted on the mounting base 216 and connected to a door cover 215, for driving the door cover 215 to rotate. The first photoelectric switch 218 is mounted on the mounting base 216 and connected to the drive mechanism 217, for providing a switching signal. The first photoelectric switch 218 is electrically connected to a controller, which controls the operation of the drive mechanism 217 to cause the door cover 215 to seal or open the through hole.

[0071] In one embodiment of the present invention, a light source 224 and an air support 225 are provided inside the second chamber 222. One end of the air support 225 is connected to the bottom of the second chamber 222, and the other end extends into the second chamber 222 and is connected to the cover of the top wall of the second chamber 222 to provide force support when the cover is opened.

[0072] According to one embodiment of the present invention, the optical path configuration device includes an X-ray source assembly 51, a camera assembly 52, a light source assembly 53, and a detector assembly 54.

[0073] The X-ray source assembly 51 is mounted on the sample chamber fixing plate 11, with its laser emitting end facing into the second cavity 56 and aligned with the placement opening, for providing X-ray excitation for the sample. The camera assembly 52 is located inside the second cavity 56 and faces the placement opening, for observing the sample. The light source assembly 53 is located inside the second cavity 56 and faces the placement opening, for providing a light source. One end of the detector assembly 54 is located inside the second cavity 56 and connected to the X-ray source assembly 51, camera assembly 52, and light source assembly 53, for receiving and feeding back signals to the controller.

[0074] In other words, the sample chamber fixing plate 11, X-ray source assembly 51, detector assembly 54, camera assembly 52, and light source assembly 53 are assembled into a small cavity, making the entire optical path system layout particularly compact and reasonable. Due to the shortened optical path, an ultra-close, low-loss testing optical path is achieved, and the device exhibits high accuracy, high efficiency, and high performance. Simultaneously, the overall structure is compact, has a small footprint, is easy to operate, and is reliable. According to one embodiment of the present invention, a mesh ring assembly 55 is provided at the placement port for placing the sample.

[0075] According to one embodiment of the present invention, the collimator switching assembly 60 includes a first stepper motor 61, a first slide rail 62, and a collimator 63. The first stepper motor 61 is fixed to the body 10. The first slide rail 62 is fixed to the body 10. The collimator 63 is slidably connected to the first slide rail 62 and connected to the first stepper motor 61, and slides along the first slide rail 62 under the drive of the first stepper motor 61. This facilitates the adjustment and positioning of the collimator 63, which is beneficial for the collimation of the optical path.

[0076] According to one embodiment of the present invention, the collimator switching assembly 60 further includes a second photoelectric switch 64 and a collimator switching light-blocking plate 65. The second photoelectric switch 64 is connected to the first stepper motor 61 and is used to control the start and stop of the first stepper motor 61. The collimator switching light-blocking plate 65 is used to trigger the activation of the second photoelectric switch 64.

[0077] According to one embodiment of the present invention, the filter switching assembly 70 includes a second stepper motor 71, a second slide rail 72, and a filter mounting plate 73. The second stepper motor 71 is fixed to the body 10. The second slide rail 72 is fixed to the body 10. The filter mounting plate 73 is slidably connected to the second slide rail 72 and connected to the second stepper motor 71, and slides along the second slide rail 72 under the drive of the second stepper motor 71 for mounting filters. According to one embodiment of the present invention, the filter switching assembly 70 further includes a third photoelectric switch 74 and a filter switching light-blocking plate 75. The third photoelectric switch 74 is connected to the second stepper motor 71 and is used to control the start and stop of the second stepper motor 71. The filter switching light-blocking plate 75 is used to trigger the activation of the third photoelectric switch 74.

[0078] According to one embodiment of the present invention, the filter mounting plate 73 is provided with filters of different combinations.

[0079] According to one embodiment of the present invention, the first slide rail 62 and the second slide rail 72 are ball-bearing linear slide rails. This slide rail structure provides a linear moving carrier for the collimator 63 and the filter. According to one embodiment of the present invention, the collimator switching assembly 60 and the filter switching assembly 70 are fixed to the bracket by an eccentric preload connection. The eccentric preload technology achieves reliable positioning, high accuracy, and convenient assembly and maintenance.

[0080] The high-performance intelligent X-ray fluorescence spectrometer according to embodiments of the present invention can achieve unattended automatic testing of up to 85 samples, greatly improving manual efficiency. For some irregularly shaped or single-variety samples, a manual testing mode can be selected, and the manual and automatic modes are integrated into one unit, with automatic mode switching. In addition, by combining X-ray radiation shielding technology, ultra-close optical path configuration technology, and high-precision collimation filter linear combination switching technology, intelligent automatic detection is achieved, greatly reducing the difficulty of system operation and improving both detection accuracy and efficiency.

[0081] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A high-performance intelligent X-ray fluorescence spectrometer, characterized in that, include: The machine body is provided with a sample chamber fixing plate, and the sample chamber fixing plate is provided with a placement port; The sample supply box includes an automatic sample supply box and a manual sample supply box. The manual sample supply box includes a first chamber and a second chamber. The bottom of the first chamber forms a groove that is recessed inward along the bottom, and the top of the second chamber is embedded in the groove. The top wall and the four side walls of the first chamber and the four side walls of the second chamber are provided with a protective material layer for shielding X-rays. The sample supply box is used to be installed on the sample chamber fixing plate and to supply samples to the placement port. An optical path configuration device includes a second cavity disposed on the sample cavity fixing plate, wherein one end of the second cavity corresponds to the sample and is used to provide an optical path for the sample; an X-ray source assembly disposed on the sample cavity fixing plate, with its laser emitting end facing into the second cavity and aligned with the placement port, for providing an X-ray source to excite the sample; a camera assembly disposed inside the second cavity and facing the placement port, for observing the sample being measured; a light source assembly disposed inside the second cavity and facing the placement port, for providing a light source; and a detector assembly, one end of which is disposed inside the second cavity and connected to the X-ray source assembly, the camera assembly, and the light source, for receiving and feeding back signals to a controller. The collimation and filtering optical path combination switching device includes a collimator switching assembly and a filter switching assembly disposed on both sides of the second cavity, wherein the collimator switching assembly and the filter switching assembly are obliquely disposed on the body for collimating and filtering the optical path within the second cavity; The controller is used to identify the automatic or manual sample feeding box installed on the sample chamber fixing plate, and based on the identification result, determine the automatic or manual sample measurement mode, control the optical path configuration device to provide the optical path, control the collimation and filtering optical path combination switching device to collimate and filter the optical path, and display the corresponding mode operation interface on the operation screen. The automatic sample dispenser further includes: a shell, the top of which has a through hole for conveying samples, and a receiving cavity formed inside the shell; a bottom plate, which is fixed inside the receiving cavity, and the bottom plate has a first cavity with one end open, the opening of the first cavity corresponding to the through hole, and a sample cup is installed inside the first cavity; and a door cover, which is located inside the receiving cavity, one end of which is rotatably connected to the bottom plate, and the other end faces the through hole, and when the door cover rotates, it seals or opens the through hole. and A mounting base is disposed on the base plate; a drive mechanism is mounted on the mounting base and connected to the door cover plate for driving the door cover plate to rotate; a first photoelectric switch is mounted on the mounting base and connected to the drive mechanism for providing a switch signal; the first photoelectric switch is electrically connected to the controller, which controls the operation of the drive mechanism to make the door cover plate cover the through hole or open the through hole.

2. The high-performance intelligent X-ray fluorescence spectrometer according to claim 1, characterized in that, A mesh ring assembly is provided at the placement port for placing the sample.

3. The high-performance intelligent X-ray fluorescence spectrometer according to claim 1, characterized in that, The collimator switching component includes: The first stepper motor is fixed to the machine body; The first slide rail is fixed to the machine body; The collimator is slidably connected to the first slide rail and to the first stepper motor, and slides along the first slide rail under the drive of the first stepper motor.

4. The high-performance intelligent X-ray fluorescence spectrometer according to claim 3, characterized in that, The collimator switching component also includes: The second photoelectric switch is connected to the first stepper motor and is used to control the start and stop of the first stepper motor; The collimator switches the light-blocking plate to trigger the activation of the second photoelectric switch.

5. The high-performance intelligent X-ray fluorescence spectrometer according to claim 1, characterized in that, The filter switching assembly includes: The second stepper motor is fixed to the machine body; The second slide rail is fixed to the machine body; A filter mounting plate is slidably connected to the second slide rail and to the second stepper motor. Driven by the second stepper motor, it slides along the second slide rail to mount the filter.

6. The high-performance intelligent X-ray fluorescence spectrometer according to claim 5, characterized in that, The filter switching assembly further includes: The third photoelectric switch is connected to the second stepper motor and is used to control the start and stop of the second stepper motor; The filter switches the light-blocking plate to trigger the activation of the third photoelectric switch.

7. The high-performance intelligent X-ray fluorescence spectrometer according to claim 5 or 6, characterized in that, The filter mounting plate is equipped with different combinations of filters.

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