Gold jewelry automatic laser processing equipment based on AI

Abstract

The invention belongs to the technical field of gold processing, and discloses AI-based gold jewelry automatic laser processing equipment which comprises a processing chamber and a laser processor arranged on the processing chamber and further comprises a laser processor arranged in the automatic laser processing equipment. The linear motor is arranged at the bottom of the interior of the processing chamber; and the clamp is assembled on the linear motor and is used for clamping the jewelry and conveying the jewelry to a station. According to the device, the gold molten drops are extracted into the interior through the exhaust pipe, are instantly reduced to hundreds of DEG C along with airflow and are desublimated into trace solid powder, and the trace solid powder is captured in the collector. The infrared camera is used for monitoring the temperature of the gold steam in a normal state and observing the loss condition of the gold steam according to infrared imaging, and the suction power of the suction pipe is adaptively adjusted. The gold powder enriched in the collector can flow into the collecting box to be collected in a centralized mode under a certain condition, gold bodies are obtained after sintering and solidification, and purification work is not needed any more.

Description

Technical Field

[0001] This invention belongs to the field of gold processing technology, specifically an AI-based automatic laser processing device for gold jewelry. Background Technology

[0002] Traditional gold and silver jewelry processing usually requires manual grinding and carving. With the rise of AI, AI-based automated gold and silver jewelry processing equipment has gradually emerged in the industry, becoming a new processing method in addition to manual processing. Compared with manual processing, it can perform more precise operations, process more complex patterns, and its processing efficiency far exceeds that of manual processing.

[0003] However, while laser processing offers the aforementioned advantages, its drawbacks are also quite significant. The principle behind it is to create patterns through high-temperature burning, which generates a large amount of high-temperature gold vapor. These molten gold droplets can reach temperatures as high as 2000°C and are finely dispersed, making collection relatively difficult. The common method is to allow them to actively sublimate and adhere to the chamber walls during a waiting period; however, this non-targeted collection method still results in substantial gold loss and waste. Generally, gold processing and hot-melt processing typically cause a weight loss of about 1% to 3% in gold jewelry, and the loss is even greater for processes with deep marks and complex patterns. For example, a commonly processed 5g solid safety buckle can lose approximately 0.05–0.15g, resulting in a loss of tens to hundreds of yuan per processing session. In studios with high processing volumes, the daily losses from laser processing can be even greater.

[0004] This application proposes an AI-based automated laser processing device for gold jewelry to overcome the aforementioned shortcomings. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides an AI-based automated laser processing device for gold jewelry.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an AI-based automatic laser processing equipment for gold jewelry, comprising a processing chamber and a laser processor disposed on the processing chamber, the automatic laser processing equipment further comprising a laser processor disposed inside the processing chamber; a linear motor disposed at the bottom of the processing chamber; a clamp mounted on the linear motor for gripping jewelry and conveying it to the workstation; a collector and an extraction pipe, the outlet of the collector being connected to the inlet of the extraction machine, the extraction pipe being connected to one side of the processing workstation for extracting gold vapor and condensing and enriching it inside the collector or the extraction pipe; an infrared camera is disposed on one side of the workstation; wherein, a collection box is disposed directly below the collector, and the gold elemental enriched in the collector is collected in the collection box.

[0007] Preferably, the suction pipe includes an atomizer disposed below and communicating with the inside of the pipe. The atomizer atomizes the spray vertically upwards. The liquid inlet of the atomizer is connected to the liquid supply end, and the liquid supplied by the liquid supply end is a mixture of water, glycerin and surfactant.

[0008] Preferably, the laser processing station inside the processing chamber is a recessed station, the air inlet end of the exhaust pipe is parallel to the height of the fixture, both sides of the recessed station are covered with a layer of smooth ceramic plate, and the air inlet end of the exhaust pipe extends out of the ceramic plate in a trumpet shape.

[0009] Preferably, the suction pipe is coaxially connected to the collector, which includes, from the inside out, a flow equalization plate, a foaming layer, a heat equalization cylinder, and a cylinder nested together. The end of the suction pipe is connected to the interior of the flow equalization plate. The flow equalization plate is attached to the foaming layer. An annular gap is reserved between the foaming layer and the heat equalization cylinder. A liquid outlet is provided at the bottom of the heat equalization cylinder, and the liquid outlet is connected to the liquid outlet nozzle of the cylinder.

[0010] Preferably, the opening of the liquid outlet is enlarged into a trumpet shape, and the liquid outlet direction does not need to be concentrated towards the center.

[0011] Preferably, the outer periphery of the heat spreader is covered with heating wires, the coverage area of ​​the heating wires does not include the liquid outlet, the cylinder does not contact the liquid outlet, and a heat insulation layer is provided on the inner wall of the cylinder.

[0012] Preferably, the automatic laser processing equipment further includes an air pump, the air outlet of the collector is connected to the air pump through the collecting head, and several sets of the collector and the air pump pipe are provided; The air extraction machine includes an air collection pipe connected to the fan duct and a solenoid valve. The collection head is connected to the air collection pipe through the solenoid valve.

[0013] Preferably, the collecting head is a hollow frustum-shaped exhaust port, and the inner wall of the collecting head is also provided with an enrichment plate. The horizontal projection of the enrichment plate along the collector axis can completely cover the gap between the foaming layer and the heat exchange cylinder. A collection net is also provided at the air outlet of the collection head.

[0014] Preferably, the liquid supply end is a collection box, the water tank of the collection box is provided with a filter layer, the collection box also includes a pump, the liquid inlet end of the pump is connected to the liquid accumulation chamber at the bottom of the collection box, and the liquid outlet end of the pump supplies liquid to each atomizer through a water distribution pipe.

[0015] Preferably, the pore size of the foamed layer is 200-250 μm.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention involves drawing molten gold droplets through a suction pipe, where they are instantly cooled to several hundred degrees Celsius and sublimated into minute solid powder, which is then collected in a collector. An infrared camera is used to monitor the temperature of the gold vapor under normal conditions and to observe its loss based on infrared imaging, allowing for adaptive adjustment of the suction power of the suction pipe. The gold powder enriched in the collector is then transferred to a collection box under certain conditions for centralized collection. After sintering and solidification, the gold body is obtained, eliminating the need for further purification.

[0017] This invention employs a foamable configuration for the collector, with its innermost layer being a flow equalization plate. This plate disperses a large amount of atomized mixture onto various foam layers. The fine pores distributed on the foam layers allow the mixture adhering to the surface to foam between the heat exchanger and the foam layers, forming a dense foam layer for secondary capture of gold powder. After passing through the foam layers, the gold powder is encased within the fine foam and adheres to the inner wall. As the foam accumulates, it breaks into droplets upon reaching the inner wall of the heat exchanger, sliding down the inner wall and eventually converging and discharging into the collection box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the distribution of the internal collectors in this invention; Figure 3 This is a schematic diagram showing the layout of the collector, extraction pipe, and collection box of the present invention; Figure 4 This is a schematic diagram showing the flow direction and separation of the gold droplets. Figure 5 This is a disassembly diagram of the collector of the present invention; Figure 6 This is a schematic diagram of the foam generation area of ​​the present invention; Figure 7 This is a schematic diagram of the structure of the collecting head and the capturing net of the present invention.

[0019] In the diagram: 100, processing chamber; 101, observation window; 200, laser processor; 300, linear motor; 400, fixture; 500, collector; 501, flow equalization plate; 502, foaming layer; 503, heat spreader; 504, cylinder; 505, heating wire; 506, liquid outlet; 507, collection head; 508, enrichment plate; 509, collection net; 600, extraction pipe; 601, atomizer; 700, collection box; 701, filter layer; 702, pump; 703, water distribution pipe; 800, vacuum pump; 801, solenoid valve; 802, gas collection pipe; 900, infrared camera. Detailed Implementation

[0020] 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.

[0021] First embodiment, such as Figures 1 to 3 As shown, this invention provides an AI-based automated laser processing device for gold jewelry, comprising a 100 and a 200 disposed on the 100. The device further includes a 200 disposed inside the 100; a 300 disposed at the bottom of the 100; a 400 mounted on the 300 for gripping jewelry and conveying it to a workstation; 500 and 600, with the 500's outlet connected to the 800's inlet, and the 600 connected to one side of the processing workstation for extracting gold vapor and condensing and enriching it inside the 500 or 600; a 900 disposed on one side of the workstation; and a 700 disposed directly below the 500, where the gold elemental enriched in the 500 is collected.

[0022] In this embodiment, a method for recovering gold vapor is disclosed. The gold jewelry to be processed is placed on a fixture and pushed into the workstation by a linear motor. The two doors 101 are closed, and the laser processing mechanism can intelligently identify and process according to the customized pattern. The system scans the gold workpiece with a high-resolution camera to generate a 3D point cloud model and automatically identifies the jewelry outline, existing texture, marks, and surface micro-defects. Furthermore, it can predict possible thermal deformation areas and trends based on the characteristics of the material thickness and purity, and then generate a laser processing path that avoids thermal deformation areas and minimizes the thermal impact. The gold melting state is observed through a high-speed vision camera. The high-speed camera continuously captures images during the processing, and the AI ​​model analyzes each frame of the image. It judges from the visual images whether there is overheating, cracks, uneven depth, or abnormal splashing of molten droplets and adjusts the laser processing power in a timely manner. (900) Real-time monitoring is performed to monitor the temperature and the dispersion state of the gold droplets. During processing, the generated vapor is extracted at 600 and instantly sublimated into trace amounts of solid powder at a temperature several hundred degrees Celsius lowered by the airflow. This powder is then captured in 500. 900 is used for routine monitoring of the gold vapor temperature and to observe the loss of gold vapor using infrared imaging, thereby adaptively adjusting the suction power of 600. Finally, the gold powder enriched in 500 is transferred to 700 for centralized collection under certain conditions. After sintering and solidification, the gold body is obtained without further purification.

[0023] like Figure 3 and Figure 4As shown, the 600 includes a 601 disposed below and connected to the inside of the pipe. The 601 sprays vertically upwards. The inlet of the 601 is connected to the liquid supply end. The liquid supplied by the liquid supply end is a mixture of water, glycerin and surfactant.

[0024] Unit 600 includes unit 601 located below. Unit 601 atomizes the cryogenic liquid into the duct, which flows towards unit 500 along with the airflow and gold vapor. This significantly increases the cooling rate of the gold vapor, instantly sublimating it into solid gold powder, facilitating its transport and collection. It also greatly reduces the likelihood of the gold powder directly sublimating and adhering to the duct wall or its inner cavity. Once the atomized mixture carrying the gold powder reaches unit 500, the surfactants and glycerol it contains prevent the gold powder from remaining or adhering there. The atomized mixture becomes a flowing liquid at unit 500, carrying the gold powder downwards to unit 700 for final collection. The collected elemental gold does not require further complex chemical purification; it can be directly obtained through sintering.

[0025] like Figures 1 to 3 As shown, the internal laser processing station of the 100 is a recessed station, the air inlet of the 600 is parallel to the height of the 400, and both sides of the recessed station are covered with a layer of smooth ceramic plate. The air inlet of the 600 extends out of the ceramic plate in a trumpet shape.

[0026] Compared to typical processing equipment, the workstation of this machine is located relatively below the platform. The main purpose of this design is to reduce the dispersion space of gold vapor at the workstation, allowing it to quickly contact the inner walls of the ceramic plates laid on both sides. These ceramic plates are heat-resistant, and the gold vapor deposited on their surface is easily eluted later. The 600mm air inlet extends from inside the equipment through the ceramic plates to the workstation; its flared opening facilitates the creation of a pressure differential to achieve greater suction.

[0027] Second embodiment, such as Figure 5 As shown, the coaxial connection of 600 is to 500. 500 includes nested members 501, 502, 503, and 504 from the inside out. The end of 600 is connected to the interior of 501. 501 and 502 are fitted together. A ring-shaped gap is reserved between 502 and 503. 506 is provided below 503, and the outlet of 506 is connected to the outlet of 504.

[0028] In this embodiment, 500 employs a foamable design. Its innermost layer, 501, disperses a large amount of atomized mixture onto various surfaces 502. The fine pores distributed on 502 allow the mixture adhering to the surface to foam between 503 and 502, forming a dense foam layer. This foam layer is used for secondary capture of the gold powder. After passing through 502, the gold powder is encased within the dense foam and adheres to the inner wall. As the foam accumulates, it breaks into droplets upon reaching the inner wall of 503, sliding down the inner wall of 503 and finally converging and discharging into 700.

[0029] like Figure 4 As shown, the opening of the liquid outlet is enlarged into a trumpet shape, and the liquid outlet direction does not need to be concentrated towards the center.

[0030] The dispensing nozzle is designed as an enlarged trumpet shape to control the distribution of droplets as they fall into the 700, aiming to maximize droplet distribution and prevent localized accumulation. Besides the trumpet shape, to further expand droplet distribution, multiple dispensing nozzles can be used, allowing for multi-point release of droplets below the 504, without being limited to increasing the nozzle's dispensing area. Alternatively, multiple dispensing nozzles can be used, or even nozzles that can move within a plane. All these designs aim to expand the dispensing range; therefore, this embodiment does not strictly limit the form.

[0031] like Figure 4 As shown, 503 is surrounded by 505, the wiring coverage of 505 does not include 506, 504 and 506 do not contact each other, and a heat insulation layer is provided on the inner wall of 504.

[0032] 505 is used to heat the entire 503 foam, allowing the accumulated foam to break up rapidly upon heating, preventing it from accumulating in the gaps. The heated surfaces allow the foam to evaporate quickly upon contact with the 503 wall, causing it to burst and form droplets that flow. 505 does not completely enclose the 503 foam; instead, it retains an outlet at the bottom. The areas not enclosed by 505 allow the 503 to conduct heat evenly over a wide area, ensuring uniform heating throughout its surface. 503 is made of ceramic material with a smooth inner wall, exhibiting excellent high-temperature resistance and heat retention.

[0033] like Figure 2 and Figure 3 As shown, the automatic laser processing equipment also includes 800, the air outlet of 500 is connected to 800 through 507, and several groups of 500 and 600 are provided; 800 includes 802 and 801 connected to the fan duct, and 507 is connected to 801 and 802 through 801.

[0034] 800 connects to the outlet of 500 via 801 and 802, serving as a source of negative pressure. 801 controls the pipe shut-off, adjusting the number of passages based on the amount of gold vapor generated. Multiple passages can be open simultaneously, or only one passage can be opened as needed.

[0035] like Figure 7 As shown, 507 is a hollow frustum-shaped exhaust port, and 508 is also provided on the inner wall of 507. The horizontal projection of 508 along the axial direction of 500 can completely cover the gap between 502 and 503; 509 is also provided at the exhaust port of 507.

[0036] 507 is used for the third capture of elemental gold, mainly to capture the splashed droplets after the foam breaks. 508 has a large capture area, and its horizontal axial projection can completely cover the gaps where foam occurs, so the splashed droplets can be captured by 508 with a high probability. 509 can capture and enrich the droplets again. The droplets flow downwards along the mesh and return to the outlet of channel 504.

[0037] like Figure 4 As shown, the liquid supply end is 700, the water tank of 700 is provided with a layer of 701, 700 also includes 702, the liquid inlet end of 702 is connected to the bottom liquid accumulation chamber of 700, and the liquid outlet end of 702 supplies liquid to each of 601 through 703.

[0038] 701 is made of sintered metal or HEPA filter cartridges and can capture micron-sized gold powder. Its placement within 700 ensures unobstructed flow in the pipeline while also guaranteeing filtration accuracy. The filtered mixture can be recycled.

[0039] like Figure 5 As shown, the pore size of the 502 is 200-250 μm. With a pore size of 200-250 micrometers, based on the 8:1 ratio between the foam and the pore size, the resulting foam diameter can be controlled to be approximately below 2 mm, ensuring the fineness of the foam. Excessively large foam particles will cause gold powder to be missed, resulting in loss.

[0040] Working principle and usage process of this invention: The gold jewelry is clamped on plate 400 and conveyed inward through plate 300 to the laser processing station. Plate 800 is activated to suction plates 500 and 600 during processing, drawing tiny gold droplets into plates 500 and 600 to sublimate into metal powder. Plate 601 atomizes and sprays a large number of atomized droplets into the pipeline, conveying them along with the gold powder to plate 500. Plate 501 disperses the atomized mixture onto plates 502. The fine pores on plates 502 allow the mixture adhering to the surface to foam between plates 503 and 502. After passing through plates 502, the gold powder is encased inside the fine foam and adheres to the inner wall. As the foam accumulates, it reaches the inner wall of plate 503, where it is heated and breaks into droplets, sliding down the inner wall of plate 503 and finally being discharged downwards into plate 700 for collection.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An AI-based automated laser processing device for gold jewelry, comprising a processing chamber (100) and a laser processor (200) disposed in the processing chamber (100), characterized in that: The automatic laser processing equipment also includes a laser processor (200) disposed therein. A linear motor (300) is disposed at the bottom inside the processing chamber (100); A clamp (400), which is mounted on a linear motor (300), is used to clamp jewelry and transport it to the workstation; A collector (500) and an extraction pipe (600) are provided. The outlet of the collector (500) is connected to the inlet of the extraction machine (800). The extraction pipe (600) is connected to one side of the processing station and is used to extract gold vapor and condense and enrich it inside the collector (500) or the extraction pipe (600). An infrared camera (900) is provided on one side of the processing station. A collection box (700) is provided directly below the collector (500), and the gold element enriched in the collector (500) will be collected in the collection box (700).

2. The AI-based automated laser processing equipment for gold jewelry according to claim 1, characterized in that: The suction pipe (600) includes an atomizer (601) disposed below and connected to the inside of the pipe. The atomizer (601) atomizes the spray vertically upward. The liquid inlet of the atomizer (601) is connected to the liquid supply end. The liquid supplied by the liquid supply end is a mixture of water, glycerin and surfactant.

3. The AI-based automated laser processing equipment for gold jewelry according to claim 2, characterized in that: The laser processing station inside the processing chamber (100) is a recessed station. The air inlet of the air extraction pipe (600) is parallel to the height of the fixture (400). Both sides of the recessed station are covered with a layer of smooth ceramic plate. The air inlet of the air extraction pipe (600) extends out of the ceramic plate in a trumpet shape.

4. The AI-based automated laser processing equipment for gold jewelry according to claim 2, characterized in that: The suction pipe (600) is coaxially connected to the collector (500). The collector (500) includes, from the inside to the outside, a flow equalization plate (501), a foaming layer (502), a heat equalization cylinder (503), and a cylinder (504) nested together. The end of the suction pipe (600) is connected to the interior of the flow equalization plate (501). The flow equalization plate (501) is attached to the foaming layer (502). A ring-shaped gap is reserved between the foaming layer (502) and the heat equalization cylinder (503). A liquid outlet (506) is provided below the heat equalization cylinder (503). The liquid outlet (506) is connected to the liquid outlet nozzle of the cylinder (504).

5. The AI-based automatic laser processing equipment for gold jewelry according to claim 4, characterized in that: The opening of the liquid outlet is enlarged into a trumpet shape, and the liquid outlet direction does not need to be concentrated towards the center.

6. The AI-based automatic laser processing equipment for gold jewelry according to claim 4, characterized in that: The outer periphery of the heat spreader (503) is covered with a heating wire (505), the wiring coverage of the heating wire (505) does not include the liquid outlet (506), the cylinder (504) does not contact the liquid outlet (506), and a heat insulation layer is provided on the inner wall of the cylinder (504).

7. An AI-based automated laser processing equipment for gold jewelry according to any one of claims 4-6, characterized in that: The automatic laser processing equipment also includes an air extractor (800), and the outlet of the collector (500) is connected to the air extractor (800) through a collection head (507). Several sets of the collector (500) and the air extraction pipe (600) are provided. The air extraction machine (800) includes an air collection pipe (802) connected to the fan duct and a solenoid valve (801). The collection head (507) is connected to the air collection pipe (802) through the solenoid valve (801).

8. The AI-based automatic laser processing equipment for gold jewelry according to claim 7, characterized in that: The collecting head (507) is a hollow frustum-shaped exhaust port. The inner wall of the collecting head (507) is also provided with an enrichment plate (508). The horizontal projection of the enrichment plate (508) along the axial direction of the collector (500) can completely cover the gap between the foaming layer (502) and the heat exchange cylinder (503). A collection net (509) is also provided at the air outlet of the collection head (507).

9. The AI-based automatic laser processing equipment for gold jewelry according to claim 2, characterized in that: The liquid supply end is a collection box (700). The water tank of the collection box (700) is provided with a filter layer (701). The collection box (700) also includes a pump (702). The inlet end of the pump (702) is connected to the bottom liquid accumulation chamber of the collection box (700). The outlet end of the pump (702) supplies liquid to each atomizer (601) through a water distribution pipe (703).

10. The AI-based automatic laser processing equipment for gold jewelry according to claim 4, characterized in that: The pore size of the foam layer (502) is 200 – 250 μm.

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