X-ray fluorescence high-intensity tablet press

Abstract

This invention discloses an X-ray fluorescence high-intensity tablet press, belonging to the field of sample preparation equipment for mineral chemical element analysis. Its features include: a press, a worktable, a powder feeding assembly, a first stacking tray, a second stacking tray, and a pressing device; the powder feeding assembly includes a storage box, and the worktable is equipped with a slide rail matching the storage box; a cup holder hole is located at the center of the worktable; the first and second stacking trays are respectively located beside the worktable; the pressing device is located on the worktable, and includes a first rod, a second rod, a third rod, a mounting base, a pressure rod, and a spring rod; the lower ends of the first and third rods are hinged to the worktable; the two ends of the second rod are hinged to the middle positions of the first and third rods respectively; the pressure rod can rotate around the third rod at a certain angle. Compared with the prior art, it has the characteristics of high pressure and high efficiency.

Description

Technical Field

[0001] This invention relates to a sample preparation device for mineral chemical element analysis, and in particular a high-strength tablet press suitable for X-ray fluorescence analyzer sample preparation. Background Technology

[0002] X-ray fluorescence (XRF) analyzers are commonly used for the chemical composition analysis of mineral samples. XRF is the X-ray emitted by the sample under X-ray irradiation, containing information about the sample's chemical composition. Analysis of the XRF fluorescence determines the content of each component in the sample. When using an XRF analyzer, the sample needs to be prepared by pressing it into a pellet. This involves first creating a cup-shaped holder, then adding the powdered sample into the holder, and finally pressing the sample surface flat with a press to facilitate subsequent XRF analysis. Appropriately increasing the pressure improves the flatness and smoothness of the pressed sample surface, thus increasing the accuracy of the analysis. Generally, increasing the pressure requires a higher-pressure press, which inevitably increases costs. Furthermore, most presses use hydraulic systems, with large-diameter main cylinders and relatively slow-moving crossbeams. During the pressing process, the actual stroke applied to the sample is only one or two centimeters. After pressing, the pressure rod needs to be raised. Since space needs to be created below the pressure rod for other operations after it's raised, the pressure rod needs to be raised about 20 centimeters. Similarly, it needs to be lowered about 20 centimeters before the actual pressing. Therefore, during pressing, the press has approximately 20 centimeters of idle travel, wasting time and reducing work efficiency. Additionally, current pressing equipment has a low level of automation, requiring manual operation during production, which consumes considerable manpower. Summary of the Invention

[0003] The technical objective of this invention is to address the shortcomings of the prior art by providing an X-ray fluorescence high-intensity tablet press.

[0004] The technical solution of this invention to solve its technical problem is: an X-ray fluorescence high-intensity tablet press, characterized in that it includes a press, a worktable, a powder feeding assembly, a first stacking tray, a second stacking tray, and a pressing device; the worktable is mounted on the press and located below the movable crossbeam of the press; the powder feeding assembly includes a storage box, and a slide rail matching the storage box is provided on the worktable; the storage box has an opening at the top and a discharge port at the bottom; the storage box is driven by a cylinder to slide along the slide rail; a cup holder hole is provided at the center of the worktable, the cup holder hole is a through hole structure, a base is provided at the bottom of the cup holder hole, and the upper part of the base is a cylinder. The structure comprises a cylindrical structure with a diameter equal to the diameter of the cup holder hole, the upper part of which is located within the cup holder hole. A pressure rod is positioned above the cup holder hole, driven by a movable crossbeam. Two pressure rods are present, one for pressing an empty cup holder and the other for pressing a cup holder containing a sample. The main body of the pressure rod is cylindrical, with a structure at its upper end matching the mounting base. The lower part of the base consists of a support structure and a lifting structure. A material conveying device is provided on the worktable to transport the processed cup holders to a first stacking tray. A sample feeding device is provided on the second stacking tray, which transports the cup holders from the second stacking tray into the cup holder hole.

[0005] The first and second stacking trays mentioned above each include a partition and a turntable. The partitions are arranged in an Archimedean spiral shape, forming a spiral space of equal width between the partitions. The turntable is located below the partitions and is driven to rotate by a power device. The turntable of the first stacking tray rotates the cup holders along the spiral space towards the center through rotation. The turntable of the second stacking tray rotates the cup holders along the spiral space towards the edge of the turntable through rotation.

[0006] The aforementioned workbench is equipped with a clamping device, which includes a first rod, a second rod, a third rod, a mounting base, a pressure rod, and a spring rod. The lower ends of the first and third rods are respectively hinged to the workbench. The first rod is placed at an angle, with its upper end tilted inward. An elastic element is provided on the first rod, through which an outward rotational force is applied to the first rod. The two ends of the second rod are respectively hinged to the middle positions of the first and third rods. The third rod has an L-shaped structure, with its upper half bent inward, and its inner end hinged to the mounting base. The pressure rod described above can rotate around the third rod at a certain angle. A limiting device is provided between the mounting base and the third rod to limit the rotation angle of the pressure rod. When the pressure rod rotates inward to the limited position, the lower end of the pressure rod can be inserted into the cup holder hole. The second rod has a branch, which forms an angle with the main body of the second rod. One end of the branch is fixed to the second rod, and the other end of the branch is hinged to one end of the spring rod. The other end of the spring rod is hinged to the mounting base or the pressure rod. The spring rod is an arc-shaped rod structure with a certain degree of elasticity, which can bend and deform when both ends are compressed.

[0007] The aforementioned material conveying device includes the storage box, the material conveying cylinder, and the chute; the chute is placed at an angle, with its first end located at the edge of the workbench and its end located at the edge of the first stacking tray, wherein the height of the workbench is higher than the height of the first stacking tray.

[0008] The aforementioned sample feeding device includes a sensor, a feeding cylinder, a baffle, and a positioning device; the outer end of the second stacking tray partition is located on the edge of the second stacking tray near the worktable; on the edge of the second stacking tray turntable, a distance extending from the outer end of the partition along the direction of turntable rotation is located at the outlet of the second stacking tray, the width of which is slightly larger than the diameter of the cup holder, and the cup holder enters the worktable from the outlet of the second stacking tray; the sensor is located on one side of the outlet of the second stacking tray, and can sense whether the cup holder is located at the outlet of the second stacking tray; the baffle is driven by a baffle cylinder, and when the baffle extends outward, it is located on one side of the partition at the outlet of the second stacking tray, at which time the baffle... The baffle plate prevents the cup holder from entering the outlet of the second stacking tray. When the baffle plate retracts inward, it moves away from the second stacking tray, allowing the cup holder to move freely. The piston end of the feeding cylinder is equipped with a pusher plate, which is located at the outlet of the second stacking tray in its natural state. The pusher plate, driven by the feeding cylinder, pushes the cup holder to the cup holder hole on the worktable. The positioning device includes two positioning cylinders and two positioning heads. The positioning head is fixed on the piston rod of the positioning cylinder, and has a concave edge on the side facing the cup holder hole. The two positioning cylinders are located on both sides of the cup holder hole. When the pistons of the two positioning cylinders extend, the two positioning heads push the cup holder to a position where the cup holder holes are aligned.

[0009] The upper half of the aforementioned pole number one is bent inward at a certain angle.

[0010] The mounting base and the upper end of the pressure rod are respectively provided with planar contact surfaces, and multiple mounting holes are provided at corresponding positions of the contact surfaces, so that the two can be connected by bolts or screws.

[0011] The aforementioned rod No. 3 has a mounting hole at the position where it connects to the mounting base. A rotating shaft passes through the mounting hole and is fixedly connected to the mounting base, rotating synchronously with the mounting base. A limiting rod is provided at the end of the rotating shaft, and a stop block is provided on rod No. 3. When the limiting rod rotates to a certain angle, the stop block can block the limiting rod, preventing the mounting base from continuing to rotate, thereby achieving a limiting function.

[0012] Compared with the prior art, the present invention has the following outstanding advantages:

[0013] 1. Increase the sample preparation pressure to improve the accuracy and sensitivity of the detection;

[0014] 2. A large pressure can be generated using a small press, which reduces costs;

[0015] 3. Reduced idle travel distance, improving work efficiency;

[0016] 4. It has improved the level of automation and reduced manual labor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cup holder structure.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the storage box and its surrounding structure according to the present invention.

[0020] Figure 4 This is a schematic diagram of the lower half of the structure of the present invention.

[0021] Figure 5 This is a top view of the workbench and surrounding structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the cup holder hole and base of the present invention.

[0023] Figure 7 This is a schematic diagram of the first stacking disk structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the second racking disc structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the pressing device of the present invention.

[0026] Figure 10 This is a schematic diagram of the working state of the clamping device of the present invention. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. For ease of description, the direction pointing towards the center of the worktable 7 is defined as inward, and the direction away from the center of the worktable 7 is defined as outward.

[0028] like Figures 1 to 10 As shown, the present invention includes a press 2, a worktable 7, a powder feeding assembly, a first stacking tray 8, a second stacking tray 9, and a pressing device.

[0029] The worktable 7 is mounted on the press 2, located below the movable crossbeam 3 of the press. The powder feeding assembly includes a storage box 5, such as... Figures 2 to 5 As shown, the workbench 7 is equipped with a slide rail 6 that matches the storage box 5. One end of the slide rail 6 is the inner end, and the other end is the outer end. The inner end of the slide rail 6 is close to the center of the workbench 7, and the storage box 5 can slide along the slide rail 6. The storage box 5 has an opening at the top for easy feeding and observation of the amount of powder in the discharge box, and a discharge port at the bottom. The storage box 5 is driven by a cylinder to slide along the slide rail 6.

[0030] A cup holder hole 21 is located at the center of the workbench 7. When the storage box 5 moves to the cup holder hole 21, the powder falls into the cup holder hole 21 through the discharge port of the storage box 5. Figure 6 As shown, the cup holder hole 21 is a through hole structure extending vertically. A base 34 is located at the bottom of the cup holder hole 21. The upper part of the base 34 is a cylindrical structure with a diameter equal to the diameter of the cup holder hole 21. The upper part of the cylindrical structure is located inside the cup holder hole 21. The lower part of the base 34 consists of a support structure 22 and a lifting structure 23. The support structure 22 supports the pressure of the hydraulic press on the base 34, and the lifting structure 23 drives the base 34 to move up and down. When the base 34 moves upward to its highest point, the height of the upper surface of the cylindrical structure is equal to the height of the upper surface of the worktable 7. After the cup holder is processed, the base 34 rises, lifting the cup holder 1 upward.

[0031] The workbench 7 is equipped with a conveying device, which transports the processed cup holder 1 to the first stacking tray 8. In this embodiment, the conveying device includes the storage box 5, the conveying cylinder 18, and the slide 15. When the cup holder 1 is pushed out by the base 34, the edge of the storage box 5 pushes the cup holder 1 to one side, and then the conveying cylinder 18 pushes the cup holder 1 off the workbench 7. The slide 15 is placed at an angle, with its first end located at the edge of the workbench 7 and its end located at the edge of the first stacking tray 8. The height of the workbench 7 is higher than the height of the first stacking tray 8, so that the cup holder 1 can slide onto the first stacking tray 8 under the action of gravity.

[0032] The first and second stacking trays 8 and 9 each include a partition 24 and a turntable 25. The partitions 24 are arranged in an Archimedean spiral shape, forming a spiral space of equal width between them, which is used to accommodate the cup holder 1. The turntable 25 is located below the partitions 24 and is driven to rotate by a power device. The cup holder 1 is placed on the turntable 25, and the rotation of the turntable 25 causes the cup holder 1 to rotate synchronously. The turntable 25 of the first stacking tray 8 rotates the cup holder 1 along the spiral space towards the center; the turntable 25 of the second stacking tray 9 rotates the cup holder 1 along the spiral space towards the edge of the turntable 25.

[0033] The second stacking tray 9 is equipped with a sample feeding device. The sample is placed in the cup holder 1, and then the cup holder 1 is placed in the second stacking tray 9. The sample feeding device conveys the cup holder 1 into the cup holder hole 21. The sample feeding device includes a sensor 19, a feeding cylinder 14, a baffle 20, and a positioning device. The outer end of the partition 24 of the second stacking tray is located on the edge of the second stacking tray 9 near the worktable 7. On the edge of the turntable 25 of the second stacking tray, a distance extending from the outer end of the partition 24 along the rotation direction of the turntable 25 is the outlet 26 of the second stacking tray. The width of the outlet 26 is slightly larger than the diameter of the cup holder 1, and the cup holder 1 enters the worktable 7 from the outlet 26. The sensor 19 is located on one side of the outlet 26 of the second stacking tray, and can detect whether the cup holder 1 is located at the outlet 26. The baffle 20 is driven by the baffle cylinder 13. When the baffle 20 extends outward, it is located on one side of the partition 24 of the discharge port 26 of the second stacking tray. At this time, the baffle 20 can prevent the cup holder 1 from entering the discharge port 26 on the second stacking tray 9. When the baffle 20 retracts inward, it leaves the second stacking tray 9, and the cup holder 1 on the second stacking tray 9 can move freely. The piston end of the feeding cylinder 14 is provided with a pusher plate 33. In its natural state, the pusher plate 33 is located at the discharge port 26 of the second stacking tray. The feeding cylinder 14 drives the pusher plate 33 to push the cup holder 1 to the cup holder hole 21 on the worktable. When the cup holder 1 is delivered to the cup holder hole 21, the position of the cup holder 1 cannot be accurately aligned with the position of the cup holder hole 21 due to insufficient pushing position. At this time, the positioning device is used to position the cup holder 1. The positioning device includes two positioning cylinders 16 and two positioning heads 17. The positioning head 17 is fixed on the piston rod of the positioning cylinder 16, and the positioning head 17 has a concave edge on the side facing the cup holder hole 21. The two positioning cylinders 16 are located on both sides of the cup holder hole 21. When the pistons of the two positioning cylinders 16 extend, the cup holder 1 can be pushed to the position where the cup holder hole 21 is aligned by the action of the two positioning heads 17.

[0034] The workbench 7 is equipped with a clamping device, which includes a first rod 12, a second rod 11, a third rod 10, a mounting base 31, a pressure rod 4, and a spring rod 27. The lower ends of the first rod 12 and the third rod 10 are hinged to the workbench 7. The first rod 12 is placed at an angle, with its upper end tilted inward (i.e., in the direction of the cup holder hole 21). The first rod 12 is equipped with an elastic element, such as a torsion spring 30 or a tension spring, which applies an outward rotational force to the first rod 12, causing the upper end of the first rod 12 to press against the movable crossbeam 3. For ease of spatial arrangement, the upper half of the first rod 12 is bent inward at a certain angle.

[0035] The two ends of rod 11 are hinged to the middle positions of rod 12 and rod 10, respectively. Rod 10 has an L-shaped structure, with its upper half bent inwards. The inner end of rod 10 is hinged to mounting base 31. There are two pressure rods 4, used to press the empty cup holder 1 and the cup holder 1 containing the sample, respectively. One of them is installed on mounting base 31 as needed. The lower end of the pressure rod 4 for pressing the empty cup holder 1 has a structure that matches the upper edge and inner concave surface of the cup holder 1. The lower end face of the pressure rod 4 for pressing the cup holder 1 containing the sample is a common cylindrical end face. The main body of the pressure rod 4 is cylindrical. The upper end of the pressure rod 4 has a structure that matches the mounting base 31. Specifically, there are planar contact surfaces between the mounting base 31 and the upper end of the pressure rod 4. Multiple mounting holes are provided at corresponding positions on the contact surfaces, and the two are connected by bolts or screws. The pressure rod 4 can rotate around the third rod 10 at a certain angle. A limiting device is provided between the mounting base 31 and the third rod 10 to limit the rotation angle of the pressure rod 4. When the pressure rod 4 rotates inward to the limited position, the lower end of the pressure rod 4 can be inserted into the cup holder hole 21. Figure 9 As shown, in this embodiment, a mounting hole is provided at the position where the third rod 10 connects to the mounting base 31. A rotating shaft passes through the mounting hole, and the rotating shaft is fixedly connected to the mounting base 31 and rotates synchronously with the mounting base 31. A limiting rod 28 is provided at the end of the rotating shaft, and a stop block 29 is provided on the third rod 10. When the limiting rod 28 rotates to a certain angle, the stop block 29 can block the limiting rod 28, preventing the mounting base 31 from continuing to rotate, thereby achieving a limiting function.

[0036] The second rod 11 has a branch 32, which forms an angle with the main body of the second rod 11. One end of the branch 32 is fixed to the second rod 11, and the other end is hinged to one end of the spring rod 27. The other end of the spring rod 27 is hinged to the mounting base 31 or the pressure rod 4. The spring rod 27 is an arc-shaped rod structure with a certain degree of elasticity, which can bend and deform when both ends are compressed. When the movable crossbeam 3 of the press moves upward, the first rod 12 rotates outward, pulling the third rod 10 outward through the second rod 11, and lifting the pressure rod 4 upward. Figure 10 As shown, from a to b, the pressure rod 4 is lifted out of the cup holder hole 21. At this time, the spring rod 27 goes from bending to returning to its original position. During this process, the spring rod 27 always exerts a spring force on the pressure rod 4, and there is no relative rotation between the pressure rod 4 and the third rod 10. From b to c, the spring is fully returned to its original position. Under the action of the branch 32, the pressure rod 4 is pulled to rotate outward at a certain angle, as shown in c. The pressure rod 4 leaves the space above the cup holder hole 21 to make room for other working parts such as the storage box 5.

[0037] The clamping device acts like a lever, amplifying the pressure of the movable crossbeam 3 and transmitting it to the pressure rod 4. This allows a small-tonnage press to generate a large-tonnage pressure, thus reducing equipment investment costs. Through the structure of the branch 32 and spring rod 27, the pressure rod 4 can be quickly moved away from above the cup holder hole 21 to create space, thereby reducing the distance the movable crossbeam travels and improving production efficiency.

[0038] Each moving part of the present invention is controlled by a control circuit, wherein the hardware and program involved in the control circuit are all existing technologies. Those skilled in the art can make simple adaptive modifications based on the hardware and workflow involved in the present invention without creative labor.

[0039] The operating procedure is as follows: When making cup holder 1, first install the corresponding pressure rod 4, and add powder to the storage box 5; push the storage box 5 inward through the corresponding cylinder. When the storage box 5 passes the cup holder hole 21, the powder falls from the discharge port below the storage box 5 into the cup holder hole 21, and then the storage box 5 moves outward to reset; the movable beam 3 of the press 2 moves downward, pushing the first rod 12 down, and pushing the third rod 10 and pressure rod 4 into the cup holder hole 21 through the second rod 11, pressing the powder in the cup holder hole 21 into a solid cup-shaped structure through pressure; then the movable beam 3 of the press 2 rises, and the pressure rod 4 rises; as Figure 6 As shown, the lifting structure 23 lifts the cup holder 1 upwards so that it protrudes from the cup holder hole 21. Due to the installation position limitation of the positioning cylinder 16, the feeding cylinder 18 cannot be directly aligned with the cup holder hole 21. At this time, the storage box 5 moves inwards, and the cup holder 1 is pushed to one side by the storage box 5 so that it is located on the movement trajectory of the feeding cylinder 18. Then, the feeding cylinder 18 pushes the cup holder 1 away and it is transported to the first stacking tray 8 through the slide 15.

[0040] When it is necessary to press the sample, first place the sample in the cup holder 1, and then place the cup holder 1 on the second stacking tray 9. Install the corresponding pressure rod 4; the sample feeding device transports the cup holder 1 to the vicinity of the cup holder hole 21, and then the positioning device accurately adjusts the position of the cup holder 1 to coincide with the cup holder hole 21; then the press 2 presses down, and the pressing device presses the pressure rod 4 tightly onto the cup holder 1, flattening the sample on the cup holder 1. Then the lifting structure 23 lifts the cup holder 1 upwards, and the feeding device transports the cup holder 1 to the first stacking tray 8.

[0041] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes made to it without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. An X-ray fluorescence high-intensity tablet press, characterized in that: The device includes a press, a worktable, a powder feeding assembly, a first stacking tray, a second stacking tray, and a clamping device. The worktable is mounted on the press and located below the press's movable crossbeam. The clamping device is located on the worktable and includes a first rod, a second rod, a third rod, a mounting base, a pressure rod, and a spring rod. The lower ends of the first and third rods are hinged to the worktable. The first rod is placed at an angle, with its upper end tilted inward. An elastic element is provided on the first rod, which applies an outward rotational force, causing the upper end of the first rod to press against the movable crossbeam. The two ends of the second rod... The first and third rods are respectively hinged to the middle positions of the first and third rods. The third rod has an L-shaped structure, with its upper half bent inwards and its inner end hinged to the mounting base. The pressure rod can rotate around the third rod at a certain angle. A limiting device is provided between the mounting base and the third rod to limit the rotation angle of the pressure rod. When the pressure rod rotates inwards to the limited position, its lower end can be inserted into the cup holder hole. The second rod has a branch that forms an angle with the main body of the second rod. One end of the branch is fixed to the second rod, and the other end is hinged to one end of the spring rod. The other end of the spring rod is hinged to the mounting base or pressure rod; the spring rod is an arc-shaped rod structure with a certain elasticity, which can bend and deform when both ends are compressed; the powder feeding assembly includes a storage box, and a slide rail matching the storage box is provided on the worktable; the storage box has an opening at the top and a discharge port at the bottom; the storage box is driven by a cylinder to slide along the slide rail; a cup holder hole is provided at the center of the worktable, the cup holder hole is a through hole structure, a base is provided at the bottom of the cup holder hole, and the upper part of the base is a cylindrical structure with a diameter equal to the diameter of the cup holder hole. The cup holder is located within a cup holder hole; a pressure rod is positioned above the cup holder hole, driven by a movable crossbeam; there are two pressure rods, one for pressing an empty cup holder and the other for pressing a cup holder containing a sample; one of these rods is mounted on a mounting base as needed; the main body of the pressure rod is cylindrical, and its upper end has a structure that matches the mounting base; the lower part of the base has a support structure and a lifting structure; a material conveying device is provided on the worktable to transport the processed cup holders to the first stacking tray; a sample feeding device is provided on the second stacking tray; the sample feeding device can transport the cup holders on the second stacking tray into the cup holder hole.

2. The X-ray fluorescence high-intensity tablet press according to claim 1, characterized in that: The first and second stacking trays each include a partition and a turntable. The partitions are arranged in an Archimedean spiral shape, creating a spiral space of equal width between the partitions. The turntable is located below the partitions and is driven to rotate by a power device. The turntable of the first stacking tray rotates the cup holders along the spiral space towards the center. The turntable of the second stacking tray rotates the cup holders along the spiral space towards the edge of the turntable.

3. The X-ray fluorescence high-intensity tablet press according to claim 1, characterized in that: The material conveying device includes the storage box, the material conveying cylinder, and the chute; the chute is placed at an incline, with its first end located at the edge of the workbench and its last end located at the edge of the first stacking tray, wherein the height of the workbench is higher than the height of the first stacking tray.

4. The X-ray fluorescence high-intensity tablet press according to claim 2, characterized in that: The sample feeding device includes a sensor, a feeding cylinder, a baffle, and a positioning device. The outer end of the second stacking tray partition is located on the edge of the second stacking tray near the worktable. A section extending from the outer end of the partition along the rotation direction of the turntable on the edge of the second stacking tray is the outlet of the second stacking tray. The width of this outlet is slightly larger than the diameter of the cup holder, which enters the worktable from the outlet. The sensor is located on one side of the outlet of the second stacking tray and can detect whether the cup holder is located at the outlet. The baffle is driven by a baffle cylinder. When the baffle extends outward, it is located on one side of the partition at the outlet of the second stacking tray. The baffle plate prevents the cup holder from entering the outlet of the second stacking tray. When the baffle plate retracts inward, it moves away from the second stacking tray, allowing the cup holder to move freely. The piston end of the feeding cylinder is equipped with a pusher plate, which is located at the outlet of the second stacking tray in its natural state. The pusher plate, driven by the feeding cylinder, pushes the cup holder to the cup holder hole on the worktable. The positioning device includes two positioning cylinders and two positioning heads. The positioning head is fixed on the piston rod of the positioning cylinder, and has a concave edge on the side facing the cup holder hole. The two positioning cylinders are located on both sides of the cup holder hole. When the pistons of the two positioning cylinders extend, the two positioning heads push the cup holder to a position where the cup holder holes are aligned.

5. The X-ray fluorescence high-intensity tablet press according to claim 3, characterized in that: The upper half of the first pole is bent inward at a certain angle.

6. The X-ray fluorescence high-intensity tablet press according to claim 3, characterized in that: The mounting base and the upper end of the pressure rod are respectively provided with planar contact surfaces, and multiple mounting holes are provided at corresponding positions of the contact surfaces, and the two are connected by bolts or screws.

7. The X-ray fluorescence high-intensity tablet press according to claim 3, characterized in that: The third rod has a mounting hole at the position where it connects to the mounting base. A rotating shaft passes through the mounting hole and is fixedly connected to the mounting base, rotating synchronously with the mounting base. A limiting rod is provided at the end of the rotating shaft, and a stop is provided on the third rod. When the limiting rod rotates to a certain angle, the stop can block the limiting rod, preventing the mounting base from continuing to rotate, thereby achieving a limiting function.

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