Method of manufacturing a ring with a fingerprint

Abstract

This invention discloses a method for manufacturing a fingerprint ring, comprising the following steps: S1: three-dimensional fingerprint sampling, S2: three-dimensional scanning reconstruction, S3: fingerprint pattern extraction, S4: casting mold preparation, and S5: integral casting. This invention employs a process route of three-dimensional pressing sampling, 3D scanning reconstruction, and integral casting, fundamentally solving the defects of low fingerprint reproduction and flat, rigid patterns in traditional engraving processes. The fingerprint pattern of the final product highly overlaps with the three-dimensional morphology of the actual sampled fingerprint, resulting in a natural and three-dimensional visual appearance. Furthermore, the fingerprint pattern and the ring body are integrally cast, avoiding the problems of edge blurring and uneven depth caused by secondary engraving. Combined with a pre-treatment process that regulates the softening of the mold through preheating, the accuracy of replicating fine patterns is further improved. Simultaneously, the homogeneous, integral structure makes the fingerprint pattern less prone to wear and tear over long-term wear, significantly enhancing durability.

Description

Technical Field

[0001] This invention relates to the field of ring manufacturing technology, specifically a method for manufacturing a ring with fingerprints. Background Technology

[0002] With the continued growth in demand for personalized jewelry, rings with real fingerprint patterns have gained widespread attention in the wedding ring and commemorative jewelry fields due to their unique emotional significance and distinctiveness.

[0003] Currently, the industry commonly uses a "pre-fabrication of the ring blank + secondary surface processing" process to manufacture fingerprint-inlaid rings. First, a smooth ring blank is formed through casting or stamping. Then, a pre-designed fingerprint pattern is created on the surface of the blank through hand carving, CNC precision carving, or laser engraving. This process has the following significant drawbacks in actual production: the fingerprint materials used in existing processing methods are mostly planar, artificially designed patterns, which cannot reproduce the three-dimensional shape of a real fingerprint. It is difficult to replicate the subtle features such as the depth gradient of fingerprint ridges, side angles, and break points. The final fingerprint pattern of the finished product has a flat and rigid visual effect, differing significantly from the shape of a real fingerprint, lacking sufficient commemorative value and unique identification. Secondary carving on the curved surface of the ring is affected by the curvature of the ring face, making it difficult to precisely control the carving path and pattern depth, easily leading to uneven pattern depth, blurred edges, and loss of details. The consistency between different batches of finished products is also poor. Therefore, those skilled in the art provide a method for manufacturing fingerprint-inlaid rings to solve the problems mentioned in the background. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing a fingerprint-enabled ring, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A method for manufacturing a fingerprint-enabled ring includes the following steps: S1: Fingerprint 3D sampling: Press the finger to be sampled onto the surface of the sampling mold, causing the sampling mold to undergo plastic deformation, forming a 3D sampled fingerprint on its surface that is consistent with the three-dimensional shape of the real fingerprint. S2: 3D scanning and reconstruction: The 3D fingerprint on the sampling mold is scanned and collected using a 3D scanning device to obtain the 3D point cloud data of the fingerprint and reconstruct a digital 3D fingerprint model. S3: Fingerprint pattern extraction: The cross-section of the three-dimensional fingerprint model is partially cut out, and the depth and slope morphology features of the fingerprint ridges and valleys are preserved to obtain the fingerprint pattern for ring forming. S4: Casting mold preparation: Based on the three-dimensional model of the ring integrating the fingerprint pattern, a casting mold with a corresponding structure is processed; S5: One-piece casting: The molten ring base material is injected into the casting mold, cooled and solidified, and then demolded to obtain a ring body with a real fingerprint pattern on the surface.

[0006] Furthermore, before step S1, step S0 is included: preheating the sampling mold to soften and shape the surface of the sampling mold; the sampling mold is a wax mold or a silicone mold, wherein the material for preparing the wax mold includes at least one of epoxy resin and polyethylene wax.

[0007] Furthermore, in step S4, the casting mold has a cavity structure that matches the shape of the ring body; the ring body includes an annular base portion and at least one connecting portion integrally protruding outward from the outer side wall of the base portion; the fingerprint pattern is integrally formed on the outer surface of the base portion.

[0008] Furthermore, there are two connecting parts, which are arranged symmetrically on the left and right sides along the vertical center plane of the base part, and are respectively located on the upper and lower sides of the base part in the horizontal direction.

[0009] Furthermore, the base portion is a non-closed annular structure with an opening notch, and the fingerprint pattern is disposed on the outer surface of the base portion on both sides of the opening notch.

[0010] Furthermore, the ring body also includes an overlapping part, the two ends of which are respectively connected to the inner walls of the two sides of the opening notch. The overlapping part and the base part are integrally cast by the casting mold to provide load-bearing support for the spliced ​​body.

[0011] Furthermore, after step S5, step S6 is also included: splice assembly: the prefabricated splice is fixedly connected to the connecting part of the ring body to obtain a complete finished ring.

[0012] Furthermore, in step S6, the ring body and the splicing body are fixedly connected by welding, and the welding temperature is controlled at 900℃~1700℃, forming a smooth transition surface at the connection position.

[0013] Furthermore, the outer surface of the splice body is integrally formed with fingerprint patterns; the fingerprint patterns of the splice body are obtained by sampling and extraction using the same process as in steps S1 to S3, and the fingerprint patterns of the splice body and the ring body originate from different fingers to be sampled.

[0014] Furthermore, in step S5, the ring substrate is 18K gold or platinum.

[0015] By adopting the above technical solution Compared with the prior art, the beneficial effects of the present invention are: 1. The fingerprint ring manufacturing method provided by this invention adopts a process route of three-dimensional pressing sampling, 3D scanning reconstruction and integrated casting, which fundamentally solves the defects of low fingerprint reproduction and flat and rigid texture in traditional engraving process. This method uses a soft mold to press and completely preserve the three-dimensional details such as the depth gradient of fingerprint ridges and valleys, the slope angle and the inflection point of the broken lines. After digitally extracting the fingerprint pattern suitable for the ring face, it is directly integrated into the casting mold, so that the fingerprint pattern of the final product highly overlaps with the three-dimensional shape of the real sampled fingerprint, and the visual appearance is natural and three-dimensional. Moreover, the fingerprint pattern and the ring body are integrally formed by casting, avoiding the problems of edge blurring and uneven depth caused by secondary engraving. Combined with the pre-treatment process of preheating to control the softening degree of the mold, the replication accuracy of fine lines is further improved. At the same time, the homogeneous integrated structure also makes the fingerprint pattern less prone to wear and fall off after long-term wear, significantly improving durability.

[0016] 2. For personalized ring structures with interlocking parts, this method utilizes symmetrical connecting and overlapping parts formed in one piece to ensure positioning accuracy and load-bearing strength during assembly. Combined with a welding process of 900℃~1700℃, a smooth transition at the joints is achieved, balancing the design layering of the split structure with the overall appearance and structural robustness of the finished product. Furthermore, this process is compatible with various mainstream jewelry precious metals such as 18K gold and platinum, and can flexibly meet the customization needs of replicating different fingerprints on the ring body and interlocking parts separately. It can satisfy diverse customization scenarios such as commemorative couple rings, combining processing stability and application flexibility, thus broadening its applicability. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating a method for manufacturing a fingerprint-enabled ring. Figure 2 A schematic diagram of the structure of the ring body and the splicing body manufactured by a method for manufacturing a fingerprint-enabled ring; Figure 3 A schematic diagram of another embodiment of a ring body manufactured by a method for manufacturing a fingerprint-enabled ring; Figure 4 An image of one type of ring produced using a method for manufacturing a fingerprint-enabled ring; Figure 5 An image of one type of ring produced using a method for manufacturing a fingerprint-enabled ring; Figure 6 This is an image of one type of ring produced using a method for manufacturing fingerprint-enabled rings. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-6This invention provides an embodiment of a method for manufacturing a fingerprint-embedded ring, comprising the following steps: S1: Three-dimensional fingerprint sampling: pressing the finger to be sampled onto the surface of a sampling mold, causing the sampling mold to undergo plastic deformation, forming a three-dimensional sampled fingerprint on its surface consistent with the three-dimensional morphology of a real fingerprint; S2: Three-dimensional scanning and reconstruction: using a 3D scanning device to scan and collect the three-dimensional sampled fingerprint on the sampling mold, obtaining three-dimensional point cloud data of the fingerprint and reconstructing a digital three-dimensional fingerprint model; S3: Fingerprint pattern extraction: partially cutting the cross-section of the three-dimensional fingerprint model, retaining the depth and slope morphology features of the fingerprint ridges and valleys, to obtain a fingerprint pattern for ring molding; S4: Casting mold preparation: processing a casting mold with a corresponding structure based on the three-dimensional ring model integrating the fingerprint pattern; S5: Integrated casting molding: injecting molten ring substrate into the casting mold, cooling and solidifying, and then demolding to obtain a ring body with a real fingerprint pattern integrally formed on the surface. The previous steps included step S0: preheating the sampling mold to soften and shape its surface; the sampling mold was a wax mold or a silicone mold, wherein the wax mold was made of at least one of epoxy resin and polyethylene wax; in step S4, the casting mold had a cavity structure that matched the shape of the ring body; the ring body included a ring-shaped base and at least one connecting part integrally protruding outward from the outer wall of the base; the fingerprint pattern was integrally formed on the outer surface of the base; there were two connecting parts, which were symmetrically arranged along the vertical center plane of the base and located on the upper and lower sides of the base in the horizontal direction; the base was a non-closed ring structure with an opening; the fingerprint pattern was located on the outer surface of the base on both sides of the opening; the ring body also included an overlapping part, the two ends of which were connected to the inner walls of the opening on both sides; the overlapping part and the base were integrally cast by the casting mold to provide load-bearing support for the spliced ​​body; in step S5... The process then includes step S6: splice assembly: the prefabricated splice is fixedly connected to the connecting part of the ring body to obtain a complete finished ring. In step S6, the ring body and the splice are fixedly connected by welding. The welding temperature is controlled at 900℃~1700℃, and a smooth transition surface is formed at the connection position. The outer surface of the splice is integrally formed with fingerprint patterns. The fingerprint patterns of the splice are sampled and extracted using the same process as in steps S1~S3, and the fingerprint patterns of the splice and the ring body come from different fingers to be sampled. In step S5, the ring base material is 18K gold or platinum.

[0020] Please see Figures 1-3Following step S5, step S6 is also included: a splicing body 200 is connected to the connecting part 20 of the ring body 100. Specifically, there are two connecting parts 20, which are symmetrically arranged on the base part 10 in the vertical direction. In addition, the two connecting parts 20 are respectively arranged on the upper and lower sides of the base part 10 in the horizontal direction. Therefore, when the splicing body 200 is installed on the connecting part 20, the splicing body 200 passes over the top of the ring body 100, which can create a more three-dimensional effect. Preferably, in step S6, the ring body 100 and the splicing body 200 are connected by welding, which can make the connection position of the ring body 100 and the splicing body 200 smoother.

[0021] In addition, such as Figure 3 As shown, in another embodiment of the present invention, in addition to two connecting portions 20, the ring body 100 may also have an overlapping portion 30 for supporting the splicing body 200. The two ends of the overlapping portion 30 are respectively connected to the two ends of the notch in the ring body 100, thus serving to support the splicing body 200. It is worth noting that the shapes and structures of the connecting portions 20 and the overlapping portion 30 can be various shapes familiar to those skilled in the art, such as rectangles, etc., and are not further limited here. Figure 2 and Figure 3 As shown, the base portion 10 is a ring-shaped structure with a notch, and the fingerprint pattern is located on the base portion 10 on both sides of the notch. However, this is not a limitation. In other embodiments, the base portion 10 can also be other similar ring-shaped structures, and the setting position of the fingerprint pattern can also be adjusted by those skilled in the art as needed.

[0022] For example, in step S6, the welding conditions for the ring body 100 and the splicing body 200 are: a temperature between 900 and 1700 degrees Celsius. As one embodiment of the present invention, the materials of the ring body 100 and the splicing body 200 can be 18K gold or platinum, but are not limited thereto.

[0023] Please continue to refer to this. Figures 1 to 3 Before step S1, step S0 is included: preheating the sampling mold. The material of the wax mold includes at least one of epoxy resin and polyethylene wax. Of course, in other embodiments, the material of the wax mold can be adjusted as needed, so it will not be elaborated further here. As another embodiment of the present invention, in addition to manufacturing the ring body 100 with fingerprints by casting, those skilled in the art can also manufacture the splice body 200 with fingerprints using the same manufacturing method, thereby obtaining the ring body 100 and the splice body 200 respectively bearing the fingerprints of two people, but this is not limited to this.

[0024] The fingerprint ring manufacturing method provided by this invention adopts a process route of three-dimensional pressing sampling, 3D scanning reconstruction, and integrated casting, which fundamentally solves the defects of low fingerprint reproduction and flat and rigid texture in traditional engraving processes. This method uses a soft mold to press and completely preserve the three-dimensional details of fingerprint ridges, valleys, slope angles, and break points. After digitally extracting the fingerprint pattern suitable for the ring face, it is directly integrated into the casting mold, so that the fingerprint pattern of the final product highly overlaps with the three-dimensional shape of the real sampled fingerprint, and the visual appearance is natural and three-dimensional. Moreover, the fingerprint pattern and the ring body are integrally formed by casting, avoiding edge blurring and uneven depth caused by secondary engraving. To address the issue of fingerprint texture replication, a pre-treatment process involving preheating and controlling mold softening further enhances the accuracy of replicating fine fingerprints. The homogeneous, integrated structure also prevents fingerprint patterns from wearing off easily over long-term wear, significantly improving durability. For personalized rings with interlocking sections, this method utilizes symmetrically cast connecting and overlapping sections to ensure precise positioning and load-bearing strength. Combined with a welding process at 900℃~1700℃, a smooth transition at the joints is achieved, balancing the design layering of the separate structures with the overall appearance and structural robustness of the finished product. Furthermore, this process is compatible with various mainstream jewelry precious metals such as 18K gold and platinum, and can flexibly meet the customization needs of replicating different fingerprints on the ring body and interlocking sections separately. It can satisfy diverse customization scenarios such as commemorative couple rings, combining processing stability and application flexibility, thus broadening its applicability.

[0025] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for manufacturing a fingerprint-enabled ring, characterized in that, Includes the following steps: S1: Fingerprint 3D sampling: Press the finger to be sampled onto the surface of the sampling mold, causing the sampling mold to undergo plastic deformation, forming a 3D sampled fingerprint on its surface that is consistent with the three-dimensional shape of the real fingerprint. S2: 3D scanning and reconstruction: The 3D fingerprint on the sampling mold is scanned and collected using a 3D scanning device to obtain the 3D point cloud data of the fingerprint and reconstruct a digital 3D fingerprint model. S3: Fingerprint pattern extraction: The cross-section of the three-dimensional fingerprint model is partially cut out, and the depth and slope morphology features of the fingerprint ridges and valleys are preserved to obtain the fingerprint pattern for ring forming. S4: Casting mold preparation: Based on the three-dimensional model of the ring integrating the fingerprint pattern, a casting mold with a corresponding structure is processed; S5: One-piece casting: The molten ring base material is injected into the casting mold, cooled and solidified, and then demolded to obtain a ring body with a real fingerprint pattern on the surface.

2. The method for manufacturing a fingerprint-enabled ring according to claim 1, characterized in that, Before step S1, step S0 is also included: preheating the sampling mold to soften and shape the surface of the sampling mold; the sampling mold is a wax mold or a silicone mold, wherein the material for preparing the wax mold includes at least one of epoxy resin and polyethylene wax.

3. The method for manufacturing a fingerprint-enabled ring according to claim 1, characterized in that, In step S4, the casting mold has a cavity structure that matches the shape of the ring body; the ring body includes an annular base and at least one connecting part integrally protruding outward from the outer side wall of the base; the fingerprint pattern is integrally formed on the outer surface of the base.

4. The method for manufacturing a fingerprint-enabled ring according to claim 3, characterized in that, The number of connecting parts is two, and the two connecting parts are arranged symmetrically on the left and right sides along the vertical center plane of the base part, and the two connecting parts are respectively located on the upper and lower sides of the base part in the horizontal direction.

5. A method for manufacturing a fingerprint-enabled ring according to claim 3, characterized in that, The base portion is a non-closed ring structure with an opening notch, and the fingerprint pattern is distributed on the outer surface of the base portion on both sides of the opening notch.

6. A method for manufacturing a fingerprint-enabled ring according to claim 5, characterized in that, The ring body also includes an overlapping part, the two ends of which are respectively connected to the inner walls of the two sides of the opening notch. The overlapping part and the base part are integrally cast by the casting mold to provide load-bearing support for the spliced ​​body.

7. A method for manufacturing a fingerprint-enabled ring according to claim 3, characterized in that, Step S5 is followed by step S6: splice assembly: the prefabricated splice is fixedly connected to the connecting part of the ring body to obtain a complete finished ring.

8. A method for manufacturing a fingerprint-enabled ring according to claim 7, characterized in that, In step S6, the ring body and the splicing body are fixedly connected by welding. The welding temperature is controlled at 900℃~1700℃, and the connection position forms a smooth transition surface.

9. A method for manufacturing a fingerprint-enabled ring according to claim 7, characterized in that, The outer surface of the splice body is integrally formed with fingerprint patterns; the fingerprint patterns of the splice body are obtained by sampling and extraction using the same process as in steps S1 to S3, and the fingerprint patterns of the splice body and the ring body originate from different fingers to be sampled.

10. A method for manufacturing a fingerprint-enabled ring according to claim 1, characterized in that, In step S5, the base material of the ring is 18K gold or platinum.

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