Jewelry detection device with adjustable light source

Abstract

The utility model relates to the technical field of jewelry detection, in particular to a jewelry detection device with an adjustable light source, which comprises a base, a support column, a clamping assembly, a lighting assembly and a cleaning assembly. The clamping assembly is used for fixing jewelry through a clamping jaw and a flexible gasket, and can rotate and adjust the clamping force; the lighting assembly provides a light source with adjustable angle and intensity by using a plurality of groups of LED lamp beads, so that details of jewelry are highlighted; the cleaning assembly removes surface impurities through the airflow generator and the nozzle. The device can adapt to jewelry of different sizes and shapes, solves the problems that a light source cannot be adjusted and surface impurity interference occurs, and improves the detection precision and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of jewelry testing technology, specifically a jewelry testing device with an adjustable light source. Background Technology

[0002] In the field of jewelry testing equipment, to accurately assess the quality and characteristics of jewelry, it is typically necessary to illuminate and observe the jewelry using a light source. This process allows for the clear identification of key parameters such as color, cut, transparency, and internal flaws. To perform this operation, a testing device equipped with a light source is used. The most common type of testing device includes a fixed light source system, which illuminates the jewelry using a preset light angle and intensity to ensure consistent testing results, especially for high-refractive-index gemstones, where the operational requirements are even more stringent.

[0003] In existing technologies, the angle or intensity of the light source cannot be adjusted during the inspection process, which may prevent certain details from being fully revealed; or the limited range of light source adjustment may not meet the inspection needs of different types of jewelry. During the inspection process, there are often tiny scratches or attachments on the surface of jewelry, so under lighting conditions, these features may be confused with internal flaws, further affecting the accuracy of the inspection results. Utility Model Content

[0004] The purpose of this invention is to solve the problems in existing technologies where the angle or intensity of the light source is not adjustable, resulting in insufficient visualization of details during jewelry inspection, or where the limited adjustment range of the light source cannot meet the inspection needs of different types of jewelry. Furthermore, during the inspection process, the surface of jewelry often has minor scratches or attachments, which may be confused with internal flaws under lighting conditions, further affecting the accuracy of the inspection results. Therefore, this invention proposes a jewelry inspection device with an adjustable light source.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a jewelry testing device with an adjustable light source, comprising a base and a support column, wherein the bottom of the support column is fixedly installed on the upper surface of the base, and further comprising: a clamping component for positioning the jewelry, the clamping component being rotatably disposed on the top of the support column; an illumination component for providing multi-angle, multi-intensity light sources, the illumination component being installed on the outside of the support column via a sliding mechanism and being able to move up and down along the support column; and a cleaning component for removing impurities from the surface of the jewelry, the cleaning component being disposed below the clamping component and connected to the base.

[0006] The clamping assembly includes a central shaft and at least three sets of grippers. The grippers are connected to the outside of the central shaft via a hinged structure. Each set of grippers has a flexible pad on its inner side to protect the surface of the jewelry. The bottom of the central shaft is mounted to the top of a support column via a bearing. A gear ring is fitted on the outside of the central shaft. The gear ring meshes with a drive gear on the output shaft of a drive motor, thereby driving the grippers to rotate as a whole.

[0007] The lighting assembly includes a lampshade and a light source module disposed within the lampshade. The light source module consists of multiple LED beads, each of which is independently connected to a controller to achieve individual adjustment of brightness and color temperature. The lampshade is slidably connected to the outside of a support column via a slide rail. A rack is provided on one side of the slide rail, and the rack meshes with a transmission gear on the output shaft of a stepper motor, thereby enabling the lighting assembly to move up and down along the support column. Furthermore, the inner wall of the lampshade is provided with a parabolic reflective layer to concentrate the light emitted by the light source onto the surface of the jewelry.

[0008] The cleaning assembly includes an airflow generator and an air guide tube. The airflow generator is fixedly installed inside the base. One end of the air guide tube is connected to the airflow generator, and the other end extends to the bottom of the clamping assembly and is equipped with a nozzle. The nozzle has a conical design, with its outlet facing the center of the clamping assembly, to ensure that the high-speed airflow can accurately act on the surface of the jewelry to remove adhering substances.

[0009] Preferably, the outer side of the gripper is provided with a threaded hole, into which an adjusting screw is screwed. The end of the adjusting screw passes through the gripper and contacts the flexible pad. By rotating the adjusting screw, the pressure between the flexible pad and the jewelry can be adjusted, thereby accommodating jewelry of different sizes and shapes.

[0010] Preferably, the LED beads in the light source module are divided into two groups, one group arranged in the central area of ​​the lampshade and the other group arranged in the edge area of ​​the lampshade. The LED beads in the central area are used to provide uniform basic lighting, while the LED beads in the edge area are used to enhance local highlight effects, highlighting the cut and refractive properties of the jewelry.

[0011] Preferably, the slide rail has a guide groove on its inner side, and a slider is fixedly installed on the back of the lampshade. The slider is embedded in the guide groove and slides with it. The bottom of the guide groove has scale markings for precisely controlling the vertical height of the lighting component.

[0012] Preferably, the airflow generator includes a turbine fan and an air storage chamber. The turbine fan is fixedly mounted inside the base by a bracket, and the air storage chamber is located above the turbine fan and connected to the air guide pipe through a pipeline. A filter screen is installed inside the air storage chamber to remove particulate impurities from the air, ensuring that the ejected airflow is clean and uncontaminated.

[0013] Preferably, the nozzle outlet is provided with a porous baffle plate, which has several small through holes to disperse the airflow and reduce the impact force, so as to avoid damage to the jewelry by the high-speed airflow.

[0014] Preferably, the top of the support column is provided with an annular track, in which balls are embedded. The balls contact the flange at the lower end of the central shaft, thereby reducing the frictional resistance when the central shaft rotates.

[0015] Preferably, the upper surface of the base is provided with a groove, and an anti-slip pad is placed in the groove. The anti-slip pad is made of silicone material, which has good cushioning performance and stability, and prevents the device from shifting during use.

[0016] Compared with existing technologies, this utility model provides a jewelry testing device with an adjustable light source, featuring the following characteristics: 1. By setting up a clamping assembly, the jewelry is fixed using jaws and flexible pads, and the clamping force can be adjusted by adjusting the screw, adapting to jewelry of different sizes and shapes, ensuring a stable and reliable testing process; 2. By setting up an illumination assembly, multiple sets of LED beads provide basic illumination and localized highlight effects, combined with a sliding mechanism to achieve height adjustment of the light source, meeting the testing needs of different types of jewelry; 3. By setting up a cleaning assembly, a high-speed airflow generated by an airflow generator acts on the surface of the jewelry through nozzles, effectively removing adhering substances and preventing surface scratches or impurities from interfering with the test results. Parts not mentioned in this device are the same as or can be implemented using existing technologies. This utility model solves the problem of non-adjustable light source angle and intensity through the above-mentioned technical means, while improving testing accuracy and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout of the main components of the device, including the base, support column, clamping assembly, lighting assembly, and cleaning assembly.

[0018] Figure 2 This utility model Figure 1 Enlarged view of point A.

[0019] Figure 3 This utility model Figure 1 Enlarged view of point B.

[0020] Figure 4 This utility model Figure 1 A partial structural diagram.

[0021] The attached figures are labeled as follows:

[0022] 1. Base; 2. Support column; 3. Clamping assembly; 4. Lighting assembly; 5. Cleaning assembly; 6. Grippers; 7. Flexible pad; 8. Adjusting screw; 9. Central shaft; 10. Lampshade; 11. Light source module; 12. Slide rail; 13. Parabolic reflective layer; 14. Airflow generator; 15. Air duct; 16. Nozzle; 17. Porous partition. Detailed Implementation

[0023] This invention provides a jewelry testing device with an adjustable light source, the overall structure of which is as follows: Figure 1 As shown, the device includes a base 1, a support column 2, a clamping assembly 3, a lighting assembly 4, and a cleaning assembly 5. The base 1 serves as the foundation for the entire device and is made of metal. Its upper surface has grooves containing anti-slip pads made of silicone, which effectively increase friction between the device and the work surface, preventing displacement during use. The support column 2 is vertically fixed at the center of the upper surface of the base 1. The support column 2 has a cylindrical structure with a slide rail 12 on its outer side for mounting the lighting assembly 4. The top of the support column 2 has an annular track with embedded ball bearings. These ball bearings contact the lower flange of the central shaft 9 of the clamping assembly 3, thereby reducing frictional resistance during rotation of the central shaft 9.

[0024] Clamping component 3 is located at the top of support column 2, and its specific structure is as follows: Figure 2 As shown. The clamping assembly 3 includes a central shaft 9 and at least three sets of grippers 6. The grippers 6 are connected to the outside of the central shaft 9 via a hinge structure. Each set of grippers 6 has a flexible pad 7 on its inner side. The flexible pad 7 is made of highly elastic rubber material, which has good cushioning performance and can prevent damage to the surface of the jewelry when clamping it. The outer side of the grippers 6 has a threaded hole, into which an adjusting screw 8 is screwed. The end of the adjusting screw 8 passes through the gripper 6 and contacts the flexible pad 7. By rotating the adjusting screw 8, the pressure between the flexible pad 7 and the jewelry can be adjusted, thereby accommodating jewelry of different sizes and shapes. The bottom of the central shaft 9 is mounted to the top of the support column 2 via a bearing. A gear ring is sleeved on the outer side of the central shaft 9. The gear ring meshes with the drive gear on the output shaft of the drive motor. When the drive motor starts, the drive gear drives the gear ring to rotate, thereby causing the grippers 6 to rotate around the central shaft 9 as a whole, achieving multi-angle display of the jewelry.

[0025] The lighting component 4 is mounted on the outside of the support column 2 via a sliding mechanism, and its specific structure is as follows: Figure 3As shown. The lighting assembly 4 includes a lampshade 10 and a light source module 11 disposed within the lampshade 10. The lampshade 10 has a cylindrical structure with a parabolic reflective layer 13 on its inner wall. The parabolic reflective layer 13 is made of a high-reflectivity metal material, which can concentrate the light emitted by the light source onto the surface of the jewelry, improving the light utilization rate. The light source module 11 consists of multiple LED beads, which are divided into two groups. One group is arranged in the central area of ​​the lampshade 10, and the other group is arranged in the edge area of ​​the lampshade 10. The LED beads in the central area are used to provide uniform basic lighting, while the LED beads in the edge area are used to enhance the local highlight effect, highlighting the cut and refractive characteristics of the jewelry. Each LED bead is independently connected to a controller, which adjusts the current to individually control the brightness and color temperature of the LED beads. The lampshade 10 is slidably connected to the outer side of the support column 2 via a slide rail 12. A rack is provided on one side of the slide rail 12, which meshes with a transmission gear on the output shaft of a stepper motor. When the stepper motor starts, the transmission gear moves along the rack, thereby driving the lampshade 10 to move up and down along the support column 2. A guide groove is provided on the inner side of the slide rail 12, and a slider is fixedly installed on the back of the lampshade 10. The slider is embedded in the guide groove and slides with it. A scale mark is provided at the bottom of the guide groove for precise control of the vertical height of the lighting component 4.

[0026] Cleaning component 5 is located below clamping component 3 and connected to base 1, and its specific structure is as follows: Figure 4 As shown. The cleaning component 5 includes an airflow generator 14 and an air duct 15. The airflow generator 14 is fixedly installed inside the base 1. The airflow generator 14 includes a turbine fan and an air storage chamber. The turbine fan is fixedly installed inside the base 1 by a bracket. The air storage chamber is located above the turbine fan and is connected to the air duct 15 through a pipe. The air storage chamber is equipped with a filter screen made of multi-layer fiber material, which can effectively remove particulate impurities in the air and ensure that the sprayed airflow is clean and uncontaminated. One end of the air duct 15 is connected to the airflow generator 14, and the other end extends to the bottom of the clamping component 3 and is equipped with a nozzle 16. The nozzle 16 has a conical design, and its outlet direction is towards the center of the clamping component 3 to ensure that the high-speed airflow can accurately act on the surface of the jewelry and remove the adhering substances. A porous baffle 17 is provided at the outlet of the nozzle 16. The porous baffle 17 has several small through holes to disperse the airflow and reduce the impact force, so as to avoid damage to the jewelry by the high-speed airflow.

[0027] In practical use, the jewelry to be tested is first placed between the jaws 6 of the clamping assembly 3. The pressure between the flexible pad 7 and the jewelry is adjusted by rotating the adjusting screw 8, ensuring the jewelry is firmly clamped. Then, the drive motor is started, which rotates the jaws 6 via a gear ring, allowing for multi-angle display of the jewelry. Simultaneously, the controller of the lighting assembly 4 is activated, adjusting the brightness and color temperature of the LED beads in the central and edge areas according to the type of jewelry and testing requirements to provide optimal lighting conditions. A stepper motor controls the lampshade 10 to move up and down along the slide rail 12, adjusting the height of the lighting assembly 4 so that the light source can accurately project onto the jewelry surface. During testing, if any deposits or minor scratches are found on the jewelry surface, the airflow generator 14 of the cleaning assembly 5 can be activated. High-speed airflow acts on the jewelry surface through the air guide pipe 15 and nozzle 16, effectively removing deposits and preventing surface features from interfering with the test results. Through the coordinated operation of these components, this invention achieves efficient and accurate testing of jewelry, meeting the testing needs of different types of jewelry.

[0028] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the operating principle and implementation steps of this utility model is provided in conjunction with specific application scenarios.

[0029] First, before jewelry testing, the operator places the jewelry to be tested between the jaws 6 of the clamping assembly 3. The jaws 6 are connected to the outside of the central shaft 9 via a hinged structure, and each set of jaws 6 has a flexible pad 7 on its inner side. The flexible pad 7 is made of highly elastic rubber material, which can prevent damage to the surface of the jewelry during clamping. At this time, the operator adjusts the pressure between the flexible pad 7 and the jewelry by rotating the adjusting screw 8. The end of the adjusting screw 8 passes through the jaws 6 and contacts the flexible pad 7; its rotation precisely controls the clamping degree of the flexible pad 7, thus accommodating jewelry of different sizes and shapes. This design ensures the stability of the jewelry during testing while preventing surface damage due to excessive clamping.

[0030] Subsequently, the drive motor is started, and the drive gear on the output shaft of the drive motor meshes with the gear ring of the clamping assembly 3, causing the gear ring to rotate. The gear ring is sleeved on the outside of the central shaft 9, and its rotation causes the gripper 6 to rotate around the central shaft 9. This design allows the jewelry to be displayed from multiple angles, making it easy to observe its characteristics in various directions. In addition, the top of the support column 2 is equipped with an annular track, in which ball bearings are embedded. The ball bearings contact the lower flange of the central shaft 9, effectively reducing the frictional resistance during the rotation of the central shaft 9, thereby improving the smoothness and stability of the rotation.

[0031] After the clamping assembly 3 positions the jewelry, the lighting assembly 4 is activated to provide optimal illumination. The lighting assembly 4 includes a lampshade 10 and a light source module 11. The inner wall of the lampshade 10 has a parabolic reflective layer 13, made of a high-reflectivity metal material, which concentrates the light emitted by the light source onto the jewelry surface, improving light utilization. The light source module 11 consists of multiple LED beads, one group arranged in the central area of ​​the lampshade 10 and the other group arranged in the edge area. The LED beads in the central area provide uniform basic illumination, while the LED beads in the edge area enhance local highlights, emphasizing the jewelry's cut and refractive properties. Each LED bead is independently connected to a controller, which adjusts the current to individually control the brightness and color temperature of the LED beads. For example, for high-refractive-index gemstones, the brightness of the LED beads in the edge area can be enhanced to highlight their internal structure and cut details; while for low-refractive-index gemstones, the color temperature of the LED beads in the central area can be adjusted to make their color appear more realistic.

[0032] Meanwhile, the lampshade 10 is moved up and down along the slide rail 12 by a stepper motor to adjust the height of the lighting component 4. A rack is provided on one side of the slide rail 12, which meshes with a transmission gear on the output shaft of the stepper motor. When the stepper motor starts, the transmission gear moves along the rack, thereby driving the lampshade 10 to move up and down along the support column 2. A guide groove is provided inside the slide rail 12, and a slider is fixedly installed on the back of the lampshade 10, which is embedded in and slides within the guide groove. A scale mark is provided at the bottom of the guide groove for precise control of the vertical height of the lighting component 4. For example, when inspecting larger pieces of jewelry, the lampshade 10 can be adjusted to a higher position to expand the illumination range; while for smaller pieces of jewelry, the lampshade 10 can be lowered to a position close to the jewelry to enhance local illumination intensity.

[0033] During the inspection process, if any adhering substances or minor scratches are found on the surface of the jewelry, potentially interfering with the accuracy of the test results, the cleaning component 5 can be activated. The cleaning component 5 includes an airflow generator 14, an air duct 15, and a nozzle 16. The airflow generator 14 is fixedly installed inside the base 1, and its turbine fan is fixedly installed inside the base 1 via a bracket. The air storage chamber is located above the turbine fan and is connected to the air duct 15 via a pipe. A filter screen, made of multi-layered fiber material, is installed inside the air storage chamber to effectively remove particulate impurities from the air, ensuring that the emitted airflow is clean and uncontaminated. One end of the air duct 15 is connected to the airflow generator 14, and the other end extends directly below the clamping component 3 and is equipped with the nozzle 16. The nozzle 16 has a conical design, with its outlet facing the center of the clamping component 3, ensuring that the high-speed airflow can accurately act on the jewelry surface to remove adhering substances. A porous baffle 17 is provided at the outlet of the nozzle 16, with several small through holes to disperse the airflow and reduce impact, preventing damage to the jewelry from the high-speed airflow. Through the above design, the cleaning component 5 can quickly remove surface deposits without damaging the jewelry, thereby improving the accuracy of the test results.

[0034] Finally, after the inspection is completed, the drive motor, the controller of the lighting component 4, and the airflow generator 14 of the cleaning component 5 are turned off, and the jewelry is removed from the gripper 6. The entire inspection process, through the coordinated operation of the gripping component 3, the lighting component 4, and the cleaning component 5, achieves efficient and accurate inspection of jewelry, meeting the inspection needs of different types of jewelry.

[0035] The above description is only one specific embodiment of this utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jewelry testing device with an adjustable light source, comprising a base (1) and a support column (2), wherein the bottom of the support column (2) is fixedly mounted on the upper surface of the base (1), characterized in that, Also includes: A clamping assembly (3) for positioning jewelry, the clamping assembly (3) being rotatably disposed on top of a support post (2); A lighting assembly (4) for providing multi-angle and multi-intensity light sources, the lighting assembly (4) is mounted on the outside of the support column (2) by a sliding mechanism and can move up and down along the support column (2); And a cleaning component (5) for removing impurities from the surface of the jewelry, the cleaning component (5) being disposed below the clamping component (3) and connected to the base (1).

2. The jewelry testing device with an adjustable light source according to claim 1, characterized in that, The clamping assembly (3) includes a central shaft (9) and at least three sets of grippers (6). The grippers (6) are connected to the outside of the central shaft (9) by a hinge structure. Each set of grippers (6) has a flexible pad (7) on its inner side. The bottom of the central shaft (9) is mounted on the top of the support column (2) by a bearing. A gear ring is sleeved on the outside of the central shaft (9). The gear ring meshes with the drive gear on the output shaft of the drive motor.

3. The jewelry testing device with an adjustable light source according to claim 2, characterized in that, The gripper (6) has a threaded hole on its outer side, and an adjusting screw (8) is screwed into the threaded hole. The end of the adjusting screw (8) passes through the gripper (6) and contacts the flexible pad (7).

4. The jewelry testing device with an adjustable light source according to claim 1, characterized in that, The lighting assembly (4) includes a lampshade (10) and a light source module (11) disposed inside the lampshade (10). The light source module (11) is composed of multiple LED beads, each of which is independently connected to a controller. The lampshade (10) is slidably connected to the outside of the support column (2) via a slide rail (12). A rack is provided on one side of the slide rail (12), and the rack meshes with a transmission gear on the output shaft of a stepper motor. A parabolic reflective layer (13) is provided on the inner wall of the lampshade (10).

5. The jewelry testing device with an adjustable light source according to claim 4, characterized in that, The LED beads in the light source module (11) are divided into two groups, one group is arranged in the central area of ​​the lamp cover (10), and the other group is arranged in the edge area of ​​the lamp cover (10).

6. The jewelry testing device with an adjustable light source according to claim 1, characterized in that, The cleaning component (5) includes an airflow generator (14) and an air duct (15). The airflow generator (14) is fixedly installed inside the base (1). One end of the air duct (15) is connected to the airflow generator (14), and the other end extends to the bottom of the clamping component (3) and is provided with a nozzle (16). The nozzle (16) is tapered and its outlet direction is towards the center of the clamping component (3).

7. The jewelry testing device with an adjustable light source according to claim 6, characterized in that, The airflow generator (14) includes a turbine fan and an air storage chamber. The turbine fan is fixedly installed inside the base (1) by a bracket. The air storage chamber is located above the turbine fan and is connected to the air guide pipe (15) through a pipe. A filter screen is provided inside the air storage chamber.

8. The jewelry testing device with an adjustable light source according to claim 6, characterized in that, The nozzle (16) outlet is provided with a porous baffle (17), and the porous baffle (17) has several small through holes.

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