A fluorescence imaging instrument for gemstone detection

Abstract

The utility model discloses a fluorescent imaging appearance for gem detection belongs to gem detection technical field. Including fluorescent imaging appearance main part, the upper surface slidingly connected with the stage of fluorescent imaging appearance main part is provided with the limiting mechanism in the left and right sides of stage, the inside of stage is provided with two sample grooves, two the inside of sample groove is provided with two symmetrical clamping plate, and the one side of each clamping plate is provided with electric push rod away from sample groove center, through setting up two sample grooves in the stage, the limiting mechanism of collocating containing electromagnet groove body, the plug and the power supply can complete the clamping preparation of two gems synchronously, when the fluorescence detection of one gem, can complete the clamping of another gem synchronously, after the detection, slide the stage, realize the station positioning through the power supply control electromagnet groove body adsorption plug, make full use of the detection vacuum period, improve the overall detection efficiency, solve the problem of the single station waste detection vacuum period of existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of gemstone testing technology, and in particular to a fluorescence imaging instrument for gemstone testing. Background Technology

[0002] Fluorescence imaging is a key method in the field of gemstone testing for determining the type, authenticity, and quality of gemstones. Its core is to excite the gemstone to produce fluorescence and then perform the detection based on the intensity, color, distribution, and other characteristics of the fluorescence.

[0003] In the detection of irregularly shaped gemstones, existing fluorescence imaging instruments cannot directly adjust the gemstone angle when fluorescence imaging of the gemstone is required at different angles. The original clamping structure must be disassembled and the gemstone repositioned, which is cumbersome, easily damages the gemstone, and leads to low detection efficiency. In addition, existing equipment usually only has a single gemstone clamping station. While performing fluorescence detection on one gemstone, it is not possible to simultaneously prepare for clamping the next gemstone to be detected, resulting in wasted detection vacuum periods and further reducing the overall detection efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing fluorescent imaging instruments for detecting irregularly shaped gemstones, which require disassembling the clamping structure to adjust the gemstone angle, are cumbersome to operate and easily damage the gemstone, and have low efficiency due to the inability to prepare the gemstone to be tested simultaneously in a single-station design and the waste of the testing vacuum period. Therefore, a fluorescent imaging instrument for gemstone testing is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fluorescence imager for gemstone testing includes a main body of the fluorescence imager, a stage slidably connected to the upper surface of the main body, and limiting mechanisms on both the left and right sides of the stage. Two sample slots are formed inside the stage, and two symmetrical clamping plates are arranged inside each of the two sample slots. An electric push rod is arranged on the side of each clamping plate away from the center of the sample slot. Each electric push rod is installed inside the stage, and its output end is fixedly connected to a clamping plate. A rotating ring is rotatably connected inside each clamping plate. An angle adjustment mechanism is arranged inside one of the clamping plates in the two sample slots.

[0006] Preferably, the limiting mechanism includes an electromagnet tank, a power supply unit, and a power supply line. The electromagnet tank and the power supply unit are both fixedly connected to the main body of the fluorescence imager, and the electromagnet tank and the power supply unit are connected through the power supply line.

[0007] Preferably, the limiting mechanism further includes an insert block, which is fixedly connected to the outer surface of the platform.

[0008] Preferably, the inner bottom walls of both sample slots are provided with guide grooves, and the bottom surface of each clamping plate is fixedly connected with a guide block, and the outer surface of each guide block is slidably connected to the guide groove.

[0009] Preferably, the angle adjustment mechanism includes a pull rod, and a set of insertion holes are provided on the outer surface of the rotating ring. The pull rod passes through the clamping plate and extends into the interior of one of the insertion holes, and the pull rod is slidably connected to the clamping plate and one of the insertion holes respectively.

[0010] Preferably, a spring is fitted on the outer surface of the pull rod, and the two ends of the spring are fixedly connected to the pull rod and the clamping plate, respectively.

[0011] Preferably, one end of the rotating ring is fixedly connected to a protruding rod, one end of the protruding rod is fixedly connected to a mounting plate, and one side of the mounting plate is fixedly connected to three abutting rods, each abutting rod having a rubber sleeve installed at one end.

[0012] Preferably, the main body of the fluorescence imager is hinged to a cover plate, the bottom surface of which is fixedly connected with two light-shielding rubbers, and the front surface of the cover plate has a pull opening.

[0013] Compared with the prior art, this utility model provides a fluorescence imager for gemstone detection, which has the following beneficial effects; 1. This utility model, by opening two sample slots in the stage and using a limiting mechanism containing an electromagnet slot, a plug, and a power supply, can simultaneously prepare to clamp two gemstones. While one gemstone is being fluorescently detected, the other gemstone can be clamped simultaneously. After the detection is completed, the stage is slid, and the power supply controls the electromagnet slot to attract the plug to achieve station positioning. This makes full use of the detection vacuum period, improves the overall detection efficiency, and solves the problem of wasted detection vacuum period in existing equipment.

[0014] 2. This utility model uses a rotating ring connected inside the clamping plate and an angle adjustment mechanism containing a pull rod, a socket, and a spring inside the clamping plate. When adjusting the angle of the gemstone, there is no need to disassemble the original clamping structure. Pulling the pull rod unlocks the ring, and rotating the ring moves the gemstone to the target angle. After releasing the pull rod, the spring returns to its original position, allowing the pull rod to be inserted into the socket to complete the positioning. The operation is simple and avoids damage to the gemstone due to repeated clamping. It solves the problems of cumbersome angle adjustment and easy damage to gemstones in existing equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional view of the platform of this utility model; Figure 4 This utility model Figure 1 Enlarged view at point B in the middle; Figure 5 This is a cross-sectional view of the clamping plate of this utility model; Figure 6 This is a schematic diagram of the cover plate of this utility model when it is closed.

[0016] In the picture: 1. Fluorescence imager main body; 2. Stage; 3. Sample tank; 4. Insertion block; 5. Power supply; 6. Power supply cable; 7. Electric push rod; 8. Clamping plate; 9. Guide groove; 10. Guide block; 11. Rotary ring; 12. Insertion hole; 13. Pull rod; 14. Spring; 15. Protruding rod; 16. Mounting plate; 17. Clamping rod; 18. Rubber sleeve; 19. Cover plate; 20. Light-shielding rubber; 21. Pull opening; 22. Electromagnet tank. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-6 A fluorescence imager for gemstone testing includes a fluorescence imager body 1, a stage 2 slidably connected to the upper surface of the fluorescence imager body 1, and two sample slots 3 formed inside the stage 2.

[0019] Limiting mechanisms are provided on both the left and right sides of the stage 2. The limiting mechanisms include an electromagnet tank 22, a power supply 5, and a power supply line 6. The electromagnet tank 22 and the power supply 5 are fixedly connected to the main body 1 of the fluorescence imager. The electromagnet tank 22 and the power supply 5 are connected through the power supply line 6. The power supply 5 can provide power to the electromagnet tank 22 through the power supply line 6 to generate magnetic force.

[0020] The limiting mechanism also includes a plug 4, which is fixedly connected to the outer surface of the stage 2. When the electromagnet trough 22 is energized and generates magnetic force, it can attract the plug 4, thereby realizing the positioning of the stage 2 on the main body 1 of the fluorescence imager.

[0021] Two symmetrical clamping plates 8 are provided inside each of the two sample slots 3. Each clamping plate 8 is provided with an electric push rod 7 on the side away from the center of the sample slot 3. Each electric push rod 7 is installed inside the stage 2, and the output end of each electric push rod 7 is fixedly connected to the clamping plate 8.

[0022] The inner bottom walls of the two sample slots 3 are provided with guide grooves 9, and the bottom surface of each clamping plate 8 is fixedly connected with a guide block 10. The outer surface of each guide block 10 is slidably connected to the guide groove 9. During the movement of the clamping plate 8, the guide block 10 slides along the guide groove 9 to provide stable guidance for the clamping plate 8 and prevent the clamping plate 8 from shifting.

[0023] Each clamping plate 8 is rotatably connected to a rotating ring 11 inside, and one of the clamping plates 8 in the two sample slots 3 is provided with an angle adjustment mechanism inside.

[0024] The angle adjustment mechanism includes a pull rod 13. A set of insertion holes 12 are provided on the outer surface of the rotating ring 11. The pull rod 13 passes through the clamping plate 8 and extends into the interior of one of the insertion holes 12. The pull rod 13 is slidably connected to the clamping plate 8 and one of the insertion holes 12 respectively. By pulling or releasing the pull rod 13, the rotating ring 11 can be unlocked and fixed.

[0025] A spring 14 is fitted on the outer surface of the pull rod 13. The two ends of the spring 14 are fixedly connected to the pull rod 13 and the clamping plate 8, respectively. The spring 14 will be stretched when the pull rod 13 is pulled. When the pull rod 13 is released, the pull rod 13 can be pushed into the insertion hole 12 by the elastic restoring force.

[0026] One end of the swivel ring 11 is fixedly connected to a protruding rod 15, and one end of the protruding rod 15 is fixedly connected to a mounting plate 16. Three clamping rods 17 are fixedly connected to one side of the mounting plate 16. A rubber sleeve 18 is installed at one end of each clamping rod 17. The three clamping rods 17 are evenly distributed. The rubber sleeve 18 is made of flexible and wear-resistant material and can flexibly contact the surface of the gemstone.

[0027] The main body 1 of the fluorescence imager is hinged to a cover plate 19. Two light-shielding rubbers 20 are fixedly connected to the bottom surface of the cover plate 19. A pull opening 21 is provided on the front of the cover plate 19. The pull opening 21 makes it easy for the operator to open and close the cover plate 19. The light-shielding rubbers 20 can adhere to the surface of the stage 2 when the cover plate 19 is closed.

[0028] In this embodiment, the control of the electric push rod 7 is achieved through an external controller. The controller is electrically connected to the power supply 5, which can supply power to the electromagnet slot 22. The specific circuit connection method is a conventional technical means in the relevant technical field. This utility model does not involve the improvement of the circuit structure.

[0029] Working principle: The operator first opens the cover plate 19 through the pull port 21, places the first gemstone to be tested between the two clamping plates 8 in one of the sample slots 3, and starts the two electric push rods 7 in the sample slot 3. The electric push rods 7 push the clamping plates 8 to move towards the center of the sample slot 3. At this time, the guide block 10 on the bottom surface of the clamping plate 8 slides smoothly along the guide groove 9 on the bottom wall of the sample slot 3 until the rubber sleeve 18 at one end of the three clamping rods 17 is in close contact with the surface of the gemstone, thus completing the clamping and fixing of the first gemstone.

[0030] During the fluorescence detection of the first gemstone, the second gemstone to be tested can be placed in another sample slot 3 simultaneously. The above clamping steps are repeated to complete the clamping preparation of the second gemstone, making full use of the detection vacuum period and improving detection efficiency.

[0031] When the detection angle of the first gemstone needs to be adjusted, the operator pulls the lever 13 on the corresponding clamping plate 8. The lever 13 disengages from the insertion hole 12 on the outer surface of the rotating ring 11. At this time, the rotating ring 11 can rotate freely relative to the clamping plate 8, causing the gemstone to rotate to the target angle. Then, the lever 13 is released. Under the elastic reset action of the spring 14, the lever 13 is reinserted into the insertion hole 12 at the corresponding position of the rotating ring 11, completing the positioning of the gemstone angle. Multi-angle detection can be achieved without re-clamping the gemstone. After the gemstone clamping and angle adjustment are completed, the cover plate 19 is flipped over to close it. The light-shielding rubber 20 on the bottom surface of the cover plate 19 adheres to the surface of the stage 2, blocking external light and preventing light from interfering with fluorescence imaging.

[0032] After the test is completed, the cover plate 19 is opened, the electric push rod 7 retracts and drives the clamping plate 8 to reset, the power supply 5 disconnects the power supply to the electromagnet tank 22, the electromagnet tank 22 loses its magnetic force and no longer attracts the insert block 4 on the outer surface of the stage 2, the sliding stage 2 moves the sample tank 3 containing the second gemstone to the test position, the power supply 5 on the other side is started and the electromagnet tank 22 is powered to position the stage 2, so that the second gemstone is positioned at the test position, the above test steps are repeated, at the same time the first gemstone can be removed and a new gemstone can be installed to realize the cycle operation.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fluorescence imager for gemstone detection, comprising a fluorescence imager body (1), characterized in that: The upper surface of the main body (1) of the fluorescence imager is slidably connected to a stage (2). Limiting mechanisms are provided on both the left and right sides of the stage (2). Two sample slots (3) are opened inside the stage (2). Two symmetrical clamping plates (8) are provided inside the two sample slots (3). An electric push rod (7) is provided on the side of each clamping plate (8) away from the center of the sample slot (3). Each electric push rod (7) is installed inside the stage (2). The output end of each electric push rod (7) is fixedly connected to the clamping plate (8). A rotating ring (11) is rotatably connected inside each clamping plate (8). An angle adjustment mechanism is provided inside one of the clamping plates (8) of the two sample slots (3).

2. The fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, The limiting mechanism includes an electromagnet trough (22), a power supply (5), and a power supply line (6). The electromagnet trough (22) and the power supply (5) are both fixedly connected to the main body (1) of the fluorescence imager. The electromagnet trough (22) and the power supply (5) are connected through the power supply line (6).

3. A fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, The limiting mechanism also includes a plug (4), which is fixedly connected to the outer surface of the platform (2).

4. A fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, The inner bottom walls of the two sample slots (3) are provided with guide grooves (9), and the bottom surface of each clamping plate (8) is fixedly connected with a guide block (10). The outer surface of each guide block (10) is slidably connected to the guide groove (9).

5. A fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, The angle adjustment mechanism includes a pull rod (13), and a set of insertion holes (12) are provided on the outer surface of the rotating ring (11). The pull rod (13) passes through the clamping plate (8) and extends into the interior of one of the insertion holes (12), and the pull rod (13) is slidably connected to the clamping plate (8) and one of the insertion holes (12) respectively.

6. A fluorescence imager for gemstone detection according to claim 5, characterized in that, A spring (14) is fitted on the outer surface of the pull rod (13), and the two ends of the spring (14) are fixedly connected to the pull rod (13) and the clamping plate (8) respectively.

7. A fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, One end of the rotating ring (11) is fixedly connected to a protruding rod (15), one end of the protruding rod (15) is fixedly connected to a mounting plate (16), and one side of the mounting plate (16) is fixedly connected to three abutting rods (17), and one end of each abutting rod (17) is fitted with a rubber sleeve (18).

8. A fluorescence imaging instrument for gemstone detection according to claim 1, characterized in that, The main body (1) of the fluorescence imager is hinged to a cover plate (19). Two light-shielding rubbers (20) are fixedly connected to the bottom surface of the cover plate (19), and a pull opening (21) is provided on the front side of the cover plate (19).

Images