Jewelry detection equipment integrated with optical filter switching structure

Abstract

The utility model relates to the technical field of jewelry detection equipment, in particular to jewelry detection equipment integrated with an optical filter switching structure, which comprises a detection platform, a light source assembly, an optical lens, an optical filter switching mechanism and a positioning calibration mechanism. The optical filter switching mechanism drives a rotating disc to rotate through a stepping motor, so that rapid switching of optical filter modules is realized; the positioning sensor is matched with the limiting block to ensure accurate control of the rotation angle; the optical filter module is fixed through the magnetic attraction assembly and is convenient to disassemble and replace; a flexible wiping strip in the dustproof cover cleans the surface of the optical filter. The optical filter switching can be efficiently completed, the stability and reliability of the detection equipment are improved, meanwhile, the service life of the optical filter is prolonged, and the jewelry detection efficiency and the result accuracy are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of jewelry testing technology, specifically a jewelry testing device with an integrated filter switching structure. Background Technology

[0002] Jewelry testing equipment is a professional instrument used to identify the authenticity and quality of jewelry. It primarily uses optical analysis technology to test the material, color, cut, and other characteristics of the jewelry. During the testing process, filters are a key component, filtering specific wavelengths of light to highlight target features and improve testing accuracy. However, traditional jewelry testing equipment typically uses a fixed filter structure. Switching between filters of different wavelengths is inconvenient and can lead to inaccurate results due to improper human adjustment.

[0003] Because traditional equipment often relies on manual replacement or complex mechanical structures for filter switching, prolonged use can lead to mechanical wear or inaccurate positioning, affecting the switching efficiency and stability. This limitation not only reduces testing efficiency but may also impact the reliability of test results.

[0004] In response to the aforementioned technologies, the inventors believe that existing jewelry testing equipment suffers from low efficiency and insufficient stability in filter switching. Therefore, they propose a jewelry testing device with an integrated filter switching structure to solve these problems. Utility Model Content

[0005] To address the issues of low efficiency and insufficient stability in jewelry testing equipment during filter switching, this invention provides a jewelry testing device with an integrated filter switching structure.

[0006] The jewelry testing device with an integrated filter switching structure provided by this utility model adopts the following technical solution:

[0007] A jewelry testing device with an integrated filter switching structure includes a testing platform. A light source assembly is fixedly mounted at the top center of the testing platform, and an optical lens is provided on one side of the light source assembly. The optical lens is fixedly connected to the top of the testing platform via a support frame. A filter switching mechanism is provided on the top of the testing platform near the optical lens. The filter switching mechanism includes a rotating disk and a drive assembly. The rotating disk is mounted on the top of the testing platform via bearings. Several slots are evenly distributed on the outer periphery of the rotating disk. Filter modules are embedded in the slots and are fixed inside the slots by elastic pressure plates. The drive assembly includes a stepper motor and a transmission gear set. The stepper motor is fixedly mounted on the bottom of the testing platform. The output shaft of the stepper motor passes through the testing platform and meshes with the transmission gear set. The other end of the transmission gear set meshes with a gear ring at the bottom of the rotating disk. A positioning calibration mechanism is also provided on the top of the testing platform.

[0008] Preferably, the positioning calibration mechanism includes a positioning sensor and a limiting block. The positioning sensor is fixedly installed on the top of the detection platform near the edge of the rotating disk. The limiting block is welded to the bottom of the rotating disk and corresponds to the position of the positioning sensor. The outer surface of the limiting block is provided with a reflective coating. The positioning sensor achieves precise control of the rotation angle of the rotating disk by detecting the reflective signal of the limiting block.

[0009] Preferably, the filter module includes a filter body and a protective frame. The filter body is embedded inside the protective frame and sealed with a silicone gasket. The protective frame has protrusions on both sides, which match the grooves on the inner wall of the slot. The protrusions and the grooves are fixedly connected by a magnetic attraction component. The magnetic attraction component includes a permanent magnet embedded in the protrusion and an iron sheet embedded in the groove.

[0010] Preferably, the transmission gear set includes a driving gear and a driven gear. The driving gear is fixedly installed at the end of the output shaft of the stepper motor. The driven gear is meshed with the driving gear. The other end of the driven gear is meshed with the gear ring at the bottom of the rotating disk. The diameter of the driven gear is twice the diameter of the driving gear.

[0011] Preferably, the top of the rotating disk is provided with a dust cover, which is fixedly installed on the top of the detection platform by bolts. The inner wall of the dust cover is provided with a flexible wiping strip, one end of which contacts the outer surface of the filter module. The flexible wiping strip is made of microfiber cloth.

[0012] In summary, this utility model has the following beneficial technical effects:

[0013] A stepper motor drives a transmission gear set to rotate a rotating disk, causing filter modules mounted on the disk to pass sequentially in front of the optical lens, enabling rapid switching between different wavelength filters. Simultaneously, a positioning sensor in the positioning and calibration mechanism detects the reflected light signal from the limit block to precisely control the rotation angle of the rotating disk, ensuring accurate alignment of the filter modules with the optical lens. Furthermore, the filter modules are magnetically secured in the rotating disk's slots for easy disassembly and replacement, and the combination of the protective frame and silicone gaskets effectively prevents external dust from contaminating the filter body. Finally, a flexible wiping strip on the inner wall of the dust cover cleans the outer surface of the filter modules during the rotating disk's rotation, further enhancing the filter's stability and lifespan.

[0014] Compared with existing technologies, this utility model achieves efficient switching of filter modules through an integrated filter switching structure, solving the problems of low filter switching efficiency and poor stability in traditional equipment, and significantly improving the working efficiency and reliability of jewelry testing equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout of the jewelry testing equipment, including a testing platform, a light source assembly, an optical lens, a filter switching mechanism, and a positioning and calibration mechanism.

[0016] Figure 2 This is a schematic diagram of a stepper motor.

[0017] Figure 3 This is a schematic diagram of the rotating disk.

[0018] Figure 4 This is a cross-sectional view of the filter module, showing the composition of the filter body, protective frame, silicone gasket, and magnetic components.

[0019] Figure 5 This is a schematic diagram of the internal structure of the dust cover, highlighting the contact state between the flexible wiping strip and the filter module.

[0020] The attached figures are labeled as follows:

[0021] 1. Testing platform; 2. Light source assembly; 3. Optical lens; 4. Filter switching mechanism; 5. Rotary disk; 6. Card slot;

[0022] 7. Filter module; 8. Stepper motor; 9. Transmission gear set; 10. Positioning calibration mechanism; 11. Positioning sensor;

[0023] 12. Limiting block; 13. Protective frame; 14. Silicone gasket; 15. Magnetic suction assembly; 16. Dust cover; 17. Flexible wiping strip. Detailed Implementation

[0024] This utility model relates to a jewelry testing device with an integrated filter switching structure, which mainly includes a testing platform 1, a light source assembly 2, an optical lens 3, a filter switching mechanism 4, a positioning and calibration mechanism 10, and a dust cover 16. The following description, in conjunction with the appendix... Figure 1 To be continued Figure 5 The specific embodiments of this utility model will be described in detail.

[0025] like Figure 1 As shown, in the overall structure, the detection platform 1 serves as the basic component of the entire device, used to support and fix other functional modules. The light source assembly 2 is fixedly installed at the center of the top of the detection platform 1, providing a stable light source output for jewelry detection. The optical lens 3 is mounted on the top of the detection platform 1 near the light source assembly 2 via a support frame; its function is to capture the light signal processed by the filter and transmit it to the subsequent detection system. The filter switching mechanism 4 is located on the top of the detection platform 1 near the optical lens 3; its core components include a rotating disk 5, a slot 6, a filter module 7, and a drive assembly. The positioning and calibration mechanism 10 is also installed on the top of the detection platform 1 to ensure precise control of the rotation angle of the rotating disk 5. The dust cover 16 is fixedly installed on the top of the detection platform 1 with bolts, covering the filter switching mechanism 4 for protection and cleaning.

[0026] Combination Figure 2 As shown, the rotating disk 5 in the filter switching mechanism 4 is mounted on top of the detection platform 1 via bearings and can rotate freely around its central axis. Several slots 6 are evenly distributed on the outer periphery of the rotating disk 5, and each slot 6 contains a filter module 7. The filter module 7 is fixed in the slot 6 by an elastic clamping plate. The elastic clamping plate design ensures the filter module 7 remains stable during rotation and facilitates disassembly and replacement. The specific structure of the filter module 7 is as follows... Figure 4 As shown, the system includes a filter body, a protective frame 13, a silicone gasket 14, and a magnetic assembly 15. The filter body is embedded inside the protective frame 13 and sealed by the silicone gasket 14 to prevent external dust from entering and contaminating the filter body. The protective frame 13 has protrusions on both sides, which match the grooves on the inner wall of the slot 6, and the two are fixedly connected by the magnetic assembly 15. The magnetic assembly 15 consists of a permanent magnet embedded in the protrusion and an iron sheet embedded in the groove. This magnetic connection method not only simplifies the installation process of the filter module 7 but also ensures its stability during rotation.

[0027] The drive assembly includes a stepper motor 8 and a transmission gear set 9. The stepper motor 8 is fixedly mounted on the bottom of the detection platform 1, and its output shaft passes through the detection platform 1 and meshes with the transmission gear set 9. The transmission gear set 9 consists of a driving gear and a driven gear. The driving gear is fixedly mounted on the output shaft end of the stepper motor 8, and the driven gear meshes with the driving gear. The other end of the driven gear meshes with the gear ring at the bottom of the rotating disk 5. The diameter of the driven gear is twice that of the driving gear. This design effectively reduces the rotational speed of the rotating disk 5 and improves the smoothness and accuracy of rotation. When the stepper motor 8 starts, its output shaft drives the driving gear to rotate. The driving gear, through meshing, drives the driven gear to rotate, which in turn drives the gear ring at the bottom of the rotating disk 5 to rotate, ultimately achieving the overall rotation of the rotating disk 5.

[0028] The structure of the positioning calibration mechanism 10 is as follows Figure 3 As shown, the system includes a positioning sensor 11 and a limiting block 12. The positioning sensor 11 is fixedly mounted on the top of the detection platform 1 near the edge of the rotating disk 5, and the limiting block 12 is welded to the bottom of the rotating disk 5 and corresponds to the position of the positioning sensor 11. The outer surface of the limiting block 12 is provided with a reflective coating, and when the rotating disk 5 rotates, the limiting block 12 moves synchronously with the rotating disk 5. The positioning sensor 11 determines the rotation angle of the rotating disk 5 by detecting the light signal reflected from the surface of the limiting block 12 and feeds the signal back to the control system. The control system adjusts the operating state of the stepper motor 8 according to the feedback signal, thereby achieving precise control of the rotation angle of the rotating disk 5. This design ensures that the filter module 7 can be accurately aligned with the position in front of the optical lens 3 each time the rotating disk 5 stops.

[0029] The internal structure of the dust cover 16 is as follows Figure 5 As shown, the inner wall of the filter module 7 is provided with a flexible wiping strip 17, one end of which contacts the outer surface of the filter module 7. The flexible wiping strip 17 is made of microfiber cloth, which has good softness and cleaning ability. When the rotating disk 5 rotates, the flexible wiping strip 17 slides relative to the outer surface of the filter module 7, thereby removing dust or dirt adhering to the surface of the filter module 7. This design effectively avoids the filter module 7 from becoming contaminated due to long-term use, extends its service life, and improves the reliability of the test results.

[0030] The working principle of this utility model is as follows: First, the jewelry sample to be tested is placed on the testing platform 1, and the light source assembly 2 is turned on. The stepper motor 8 starts according to the preset program, and its output shaft drives the rotating disk 5 to rotate through the transmission gear set 9. During the rotation of the rotating disk 5, the filter module 7 embedded in the slot 6 passes in front of the optical lens 3 in sequence. The positioning sensor 11 detects the reflection signal of the limit block 12 in real time and transmits the signal to the control system. The control system adjusts the running state of the stepper motor 8 according to the signal to ensure that the filter module 7 can be accurately aligned with the position in front of the optical lens 3 each time it stops. When the filter module 7 of a certain wavelength is aligned with the optical lens 3, the light emitted by the light source assembly 2 is processed by the filter module 7, captured by the optical lens 3, and transmitted to the testing system for analysis. During this process, the flexible wiping strip 17 on the inner wall of the dust cover 16 continuously cleans the outer surface of the filter module 7 to ensure that the filter module 7 always maintains high light transmittance.

[0031] In the above embodiments, the connection and positional relationships between all components are precisely designed to ensure that each component works in concert to achieve efficient and stable filter switching. For example, the rotating disk 5 is mounted on the top of the detection platform 1 via bearings, ensuring its rotational flexibility while avoiding wear caused by friction. The filter module 7 is fixed in the slot 6 via magnetic assemblies 15, simplifying the installation and replacement process while ensuring the stability of the filter module 7 during rotation. The gear ratio of the transmission gear set 9 is reasonably designed to meet the requirement of smooth low-speed rotation of the rotating disk 5 and improve rotational accuracy. The positioning sensor 11 and the limit block 12 in the positioning calibration mechanism 10 have a simple and reliable cooperation method, enabling precise control of the rotation angle of the rotating disk 5. The flexible wiping strip 17 on the inner wall of the dust cover 16 is cleverly designed to clean the surface of the filter module 7 without interfering with its normal operation, further improving the stability and service life of the equipment.

[0032] Through the above specific embodiments, this utility model achieves efficient switching of the filter module 7, solves the problems of low filter switching efficiency and poor stability in traditional jewelry testing equipment, and significantly improves the working efficiency of the equipment and the reliability of the test results.

[0033] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0034] In the actual operation of jewelry testing, the jewelry sample to be tested is first placed on the testing platform 1, ensuring that the sample position is aligned with the center of the optical path of the light source assembly 2. Then, the light source assembly 2 is turned on to provide a stable light output, laying the foundation for subsequent optical analysis. At this time, the stepper motor 8 starts according to a preset program, driving the rotating disk 5 to rotate via the transmission gear set 9. In the design of the transmission gear set 9, the diameter ratio of the driving gear to the driven gear is 1:2. This design effectively reduces the rotational speed of the rotating disk 5, thereby improving the smoothness and accuracy of rotation. As the rotating disk 5 rotates, multiple filter modules 7, embedded in the slot 6, pass sequentially in front of the optical lens 3.

[0035] During the rotation of the rotating disk 5, the positioning sensor 11 in the positioning calibration mechanism 10 detects the light signal reflected from the surface of the limiting block 12 in real time. The limiting block 12 is welded to the bottom of the rotating disk 5 and moves synchronously with it. When the reflective coating of the limiting block 12 enters the detection range of the positioning sensor 11, the positioning sensor 11 captures the reflected signal and transmits it to the control system. The control system adjusts the operating state of the stepper motor 8 according to the feedback signal to ensure that each time the rotating disk 5 stops, the filter module 7 of a specific wavelength can be accurately aligned with the position in front of the optical lens 3. This design, through the cooperation of mechanical structure and sensor, achieves high-precision positioning for filter switching and avoids deviations caused by human operation or mechanical errors.

[0036] When the filter module 7 of a specific wavelength is aligned with the optical lens 3, the light emitted by the light source assembly 2 is processed by the filter module 7, allowing only the target wavelength of light to pass through, thereby highlighting the specific optical characteristics of the jewelry sample. The filtered light is captured by the optical lens 3 and transmitted to the subsequent detection system for analysis. During this process, a flexible wiping strip 17 installed on the inner wall of the dust cover 16 continuously cleans the outer surface of the filter module 7. The flexible wiping strip 17 is made of microfiber cloth, which has good softness and cleaning ability. When the rotating disk 5 rotates, the flexible wiping strip 17 slides relative to the outer surface of the filter module 7, removing dust or dirt adhering to its surface. This design not only prevents the filter module 7 from becoming contaminated due to long-term use, but also extends the service life of the filter module 7 and improves light transmission performance without interfering with the normal operation of the equipment.

[0037] Furthermore, the filter module 7 is fixed in the slot 6 by a magnetic assembly 15, which consists of a permanent magnet embedded in the protrusion and an iron sheet embedded in the groove. This magnetic connection method simplifies the installation and replacement process of the filter module 7 while ensuring its stability during rotation. The sealing design of the silicone gasket 14 effectively prevents external dust from entering the protective frame 13, avoiding contamination of the filter body. These designs work together to ensure the efficiency and reliability of the filter module 7 during switching.

[0038] In summary, in practical applications, this invention uses a stepper motor 8 to drive a transmission gear set 9, which in turn rotates a rotating disk 5. This allows the filter modules 7, embedded on the rotating disk 5, to pass sequentially in front of the optical lens 3, enabling rapid switching between different wavelength filters. The cooperation between the positioning sensor 11 and the limiting block 12 achieves precise control of the rotation angle, ensuring that the filter modules 7 are accurately aligned with the optical lens 3. The design of the flexible wiping strip 17 further improves the cleaning effect and lifespan of the filter modules 7. These designs work together to significantly improve the working efficiency and reliability of the jewelry testing equipment, while simultaneously solving the problems of low filter switching efficiency and poor stability in traditional equipment.

Claims

1. A jewelry testing device with an integrated filter switching structure, comprising a testing platform (1), characterized in that: A light source assembly (2) is fixedly installed at the top center of the detection platform (1). An optical lens (3) is provided on one side of the light source assembly (2). The optical lens (3) is fixedly connected to the top of the detection platform (1) by a support frame. A filter switching mechanism (4) is provided on the top of the detection platform (1) near the optical lens (3). The filter switching mechanism (4) includes a rotating disk (5) and a drive assembly. The rotating disk (5) is installed on the top of the detection platform (1) by a bearing. Several slots (6) are evenly distributed on the outer periphery of the rotating disk (5). A filter module (7) is embedded in the slot (6), and the filter module (7) is fixed inside the slot (6) by an elastic pressure plate; the driving component includes a stepper motor (8) and a transmission gear set (9), the stepper motor (8) is fixedly installed at the bottom of the detection platform (1), the output shaft end of the stepper motor (8) passes through the detection platform (1) and meshes with the transmission gear set (9), and the other end of the transmission gear set (9) meshes with the gear ring at the bottom of the rotating disk (5); the top of the detection platform (1) is also provided with a positioning calibration mechanism (10).

2. The jewelry testing device with an integrated filter switching structure according to claim 1, characterized in that: The positioning calibration mechanism (10) includes a positioning sensor (11) and a limiting block (12). The positioning sensor (11) is fixedly installed on the top of the detection platform (1) near the edge of the rotating disk (5). The limiting block (12) is welded to the bottom of the rotating disk (5) and corresponds to the position of the positioning sensor (11). The outer surface of the limiting block (12) is provided with a reflective coating.

3. The jewelry testing device with an integrated filter switching structure according to claim 1, characterized in that: The filter module (7) includes a filter body and a protective frame (13). The filter body is embedded inside the protective frame (13) and sealed by a silicone gasket (14). The protective frame (13) has protrusions on both sides. The protrusions match the grooves on the inner wall of the slot (6). The protrusions and the grooves are fixedly connected by a magnetic attraction component (15). The magnetic attraction component (15) includes a permanent magnet embedded in the protrusion and an iron sheet embedded in the groove.

4. The jewelry testing device with an integrated filter switching structure according to claim 1, characterized in that: The transmission gear set (9) includes a driving gear and a driven gear. The driving gear is fixedly installed at the end of the output shaft of the stepper motor (8). The driven gear meshes with the driving gear. The other end of the driven gear meshes with the gear ring at the bottom of the rotating disk (5). The diameter of the driven gear is twice the diameter of the driving gear.

5. The jewelry testing device with an integrated filter switching structure according to claim 1, characterized in that: The top of the rotating disk (5) is provided with a dust cover (16), which is fixedly installed on the top of the detection platform (1) by bolts. The inner wall of the dust cover (16) is provided with a flexible wiping strip (17), one end of which is in contact with the outer surface of the filter module (7).

6. The jewelry testing device with an integrated filter switching structure according to claim 5, characterized in that: The flexible wiping strip (17) is made of microfiber fabric.

7. The jewelry testing device with an integrated filter switching structure according to claim 2, characterized in that: The positioning sensor (11) controls the rotation angle of the rotating disk (5) by detecting the reflective signal of the limiting block (12).

8. The jewelry testing device with an integrated filter switching structure according to claim 3, characterized in that: The magnetic attraction component (15) between the protective frame (13) and the slot (6) fixes the filter module (7) through the magnetic connection between the permanent magnet and the iron sheet.

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