Jewelry 3D printer and printing method thereof

Abstract

This invention relates to a 3D printer for jewelry and its printing method, belonging to the field of plastic molding technology. It includes a printer frame, a filament supply system, a print head system, a print head traversing system, a platform traversing system, a powder supply system, a blower system, and a print head lifting system. The filament supply system is mounted on the printer frame. The print head system and the blower system are both mounted on the print head traversing system. The powder supply system is mounted on the output end of the print head system. The platform traversing system is mounted on the printer frame and located below the print head system. The movement directions of the print head traversing system and the platform traversing system are perpendicular to each other. The print head traversing system is mounted on the print head lifting system. The powder supply system has a blowing fan and a mixing tube. A sealing plug is installed at the end of the mixing tube. The blowing fan is rotatably mounted inside the mixing tube. The mixing tube is mounted on the output end of the print head system, realizing the printing of jewelry patterns.

Description

Technical Field

[0001] This invention relates to the field of plastic molding technology, and in particular to a 3D printer for jewelry and its printing method. Background Technology

[0002] A jewelry 3D printer is a device that can create various jewelry items using 3D printing technology. 3D printing technology creates three-dimensional objects by depositing materials layer by layer, offering advantages such as high precision, personalized customization, and rapid prototyping.

[0003] Jewelry 3D printers are characterized by high precision, personalized customization, and rapid prototyping. They can print fine details and complex structures, making them suitable for creating delicate jewelry. They can directly print unique jewelry based on designs to meet individual needs. Compared with traditional manufacturing methods, 3D printing can greatly shorten the production cycle and improve efficiency.

[0004] Existing printers are not convenient for printing patterns, and often require additional printing after the initial printing is complete. Summary of the Invention

[0005] To overcome the technical defects of the existing technology, the present invention provides a jewelry 3D printer and its printing method to achieve the printing of jewelry patterns.

[0006] The technical solution adopted in this invention is:

[0007] A 3D printer for jewelry includes a printer frame, a filament feeding system, a print head system, a print head traversing system, a platform traversing system, a powder supply system, a blower system, and a print head lifting system. The filament feeding system is mounted on the printer frame. A filament extrusion device is located on the upper side of the print head system, which feeds the filament downwards. A wiring system is slidably mounted on the filament extrusion device. The print head system and the blower system are both mounted on the print head traversing system. The powder supply system is mounted on the output end of the print head system. The platform traversing system is mounted on the printer frame. The platform longitudinal movement system is located below the printhead system. The movement directions of the printhead transverse movement system and the platform longitudinal movement system are perpendicular to each other. The printhead transverse movement system is mounted on the printhead lifting system. The powder supply system has a blowing fan and a mixing tube. The feeding tube and the blowing fan are both connected to the mixing tube. The mixing tube is installed at the output end of the printhead system. A sealing plug is installed at the end of the mixing tube. The blowing fan is rotatably mounted inside the mixing tube. An extrusion cylinder is integrally provided in the middle of the mixing tube. The extrusion cylinder is connected to the output end of the printhead system. A powder inlet hole is provided on the extrusion cylinder.

[0008] Preferably, the wiring system includes a wiring action slider, a new material pushing device, a new material fixing device, a used material fixing device, and a welding device. The wiring action slider is provided with a parallel cavity, a discharge cavity, and a cooling air passage. The new material pushing device and the new material fixing device are installed opposite each other at the bottom of the parallel cavity. The pushing direction of the new material pushing device is towards the new material fixing device. The cooling air passage is located on the lower side of the parallel cavity. The welding device is installed in the cooling air passage. The used material fixing device is installed in the wiring action slider and is pressed towards the discharge cavity.

[0009] Preferably, the printer frame includes a support frame, a support base, and diagonal braces. The support frame is mounted on the support base, and the two ends of the diagonal braces are respectively mounted on the support frame and the support base. The wire feeding system and the platform longitudinal movement system are both mounted on the support frame, and the platform longitudinal movement system is mounted on the support base.

[0010] Preferably, the wire feeding system includes a wire feeding roller and a wire feeding fixing screw. The wire feeding roller is rotatably mounted on the printer frame, and the wire feeding fixing screw is mounted on the printer frame via a threaded joint, with the wire feeding fixing screw pressing against the wire feeding roller.

[0011] Preferably, the printhead system has a conveying channel, and the printhead system is equipped with a filament extrusion device consisting of a pair of conveying rollers, with the conveying rollers installed at both ends of the conveying channel.

[0012] Preferably, the printhead traversing system includes a printhead traversing block and a printhead traversing motor. The printhead traversing block is slidably mounted on the printhead lifting system, and the printhead traversing motor is mounted on the printhead lifting system. The printhead traversing motor is connected to the printhead traversing block via a synchronous belt.

[0013] Preferably, the platform longitudinal movement system includes a platform longitudinal movement rail, a longitudinal movement platform, and a longitudinal movement motor. The platform longitudinal movement rail is mounted on the printer frame, the longitudinal movement platform is slidably mounted on the platform longitudinal movement rail via a slider, and the longitudinal movement motor is mounted on the printer frame. The longitudinal movement motor is connected to the longitudinal movement platform via a synchronous belt.

[0014] Preferably, the blower system includes a blower and a nozzle, the nozzle pointing downwards from the powder supply system, and the blower being mounted on the printhead traverse system.

[0015] Preferably, the printhead lifting system includes a printhead lifting motor, a printhead lifting screw, and a printhead lifting crossbeam. The printhead lifting motor is mounted on the printer frame, the printhead lifting screw is mounted on the output end of the printhead lifting motor, the printhead lifting crossbeam is connected to the printhead lifting screw via a threaded connection, and the printhead traversing system is slidably mounted on the printhead lifting crossbeam.

[0016] A method for 3D printing jewelry, using a jewelry 3D printer, includes the following steps:

[0017] S1: The filament supply system supplies filament to the printhead system;

[0018] S2: The printhead lifting system drives the printhead system to rise and fall;

[0019] S3: The printhead lateral movement system drives the printhead system to move laterally;

[0020] S4: The platform longitudinal movement system drives the substrate to move;

[0021] S5: The filament extrusion device pulls the filament downward, the wiring system automatically connects the wires, the print head system is used to melt the material, and the powder supply system is turned on to dye the molten material;

[0022] S6: The blower system rapidly cools the molten material to prevent the freshly printed material from collapsing and deforming.

[0023] The beneficial effects of this invention are:

[0024] Both filament feeding systems are mounted on the printer frame for filament feeding. A filament extrusion device is located above the printhead system, which feeds the filament downwards. The two filament feeding systems alternately to ensure a continuous supply of material. The wiring system is slidably mounted on the filament extrusion device. Because the wiring system is slidable, it slides downwards with the filament as the extrusion device pulls it, ensuring that the wiring system can perform wiring operations during filament transport without stopping the filament feed. The printhead system and the blower system are both mounted on the printhead traverse system, thus achieving the blower system... The system continuously blows airflow towards the end of the printhead system to help the material cool and solidify quickly after extrusion. The printhead traverse system drives the printhead system to move laterally. The toner supply system is installed at the output end of the printhead system to supply toner, thereby enabling the material to form textures during printing. The platform longitudinal movement system is installed on the printer frame to achieve longitudinal movement of the workpiece. The platform longitudinal movement system is located below the printhead system. The movement directions of the printhead traverse system and the platform longitudinal movement system are perpendicular to each other. The printhead traverse system is installed on the printhead lifting system to achieve lifting of the printhead system.

[0025] The powder supply system includes a blowing fan and a mixing tube. The mixing tube is installed at the output end of the printhead system, and a sealing plug is installed at the end of the mixing tube. The blowing fan is rotatably installed inside the mixing tube. An extrusion cylinder is integrally installed in the middle of the mixing tube and is connected to the output end of the printhead system. The extrusion cylinder has a powder inlet hole. A blowing motor that drives the blowing fan to rotate is installed on the mixing tube. The blowing fan drives the color powder to be sprayed from the powder inlet hole onto the molten material. The mixing tube is pre-pressurized to prevent the molten material from overflowing from the powder inlet hole into the mixing tube, thus realizing the dyeing extrusion of the molten material. When the powder is used up, the sealing plug is opened to replenish it. Since the powder in the mixing tube is only one color, this technical solution can only print single-color workpieces. However, by controlling the speed and start / stop of the blowing motor, the amount of powder can be controlled, and the color depth of different areas of the workpiece can be varied. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective.

[0028] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0029] Figure 4 This is a schematic diagram of the powder supply system.

[0030] Figure 5 This is a schematic diagram of the wiring system.

[0031] Figure 6 This is a schematic diagram of the wiring system before wiring.

[0032] Figure 7 This is a schematic diagram of the slider structure for wiring action.

[0033] Figure 8 for Figure 4 Enlarged diagram of point B in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Printer stand; 11. Support frame; 12. Support base; 13. Diagonal brace;

[0036] 2. Wire feeding system; 21. Wire feeding roller; 22. Wire feeding fixing screw;

[0037] 3. Printhead system; 31. Conveying channel; 32. Thread extrusion device; 33. Limiting ring; 35. Conveying roller;

[0038] 4. Printhead traverse system; 41. Printhead traverse block; 42. Printhead traverse motor;

[0039] 5. Platform longitudinal movement system; 51. Platform longitudinal movement rail; 52. Longitudinal movement platform; 53. Longitudinal movement motor;

[0040] 6. Powder supply system; 61. Mixing pipe; 62. Blowing fan; 63. Extrusion cylinder; 6311. Powder inlet; 64. Sealing plug;

[0041] 7. Blowering system; 71. Blower; 72. Nozzle;

[0042] 8. Printhead lifting system; 81. Printhead lifting motor; 82. Printhead lifting screw; 83. Printhead lifting crossbeam;

[0043] 9. Wiring system;

[0044] 91. Wiring action slider; 911. Parallel cavity; 912. Discharge cavity; 913. Cooling air passage;

[0045] 92. New material pushing device; 921. New material pushing reference electromagnet; 922. New material pushing slider;

[0046] 93. New material fixing device; 931. New material fixing reference electromagnet; 932. New material fixing slider;

[0047] 94. Used material fixing device; 941. Used material fixing reference electromagnet; 942. Used material fixing slider;

[0048] 95. Welding equipment;

[0049] 96. Return spring. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings:

[0051] like Figure 1 — Figure 8As shown, this embodiment provides a jewelry 3D printer, including a printer frame 1, two filament feeding systems 2, a wiring system 9, a print head system 3, a print head transverse movement system 4, a platform longitudinal movement system 5, a powder supply system 6, a blower system 7, and a print head lifting system 8. Both filament feeding systems 2 are mounted on the printer frame 1 for feeding filament. A filament extrusion device 32 is provided on the upper side of the print head system 3, which conveys the filament downwards. The two filament feeding systems 2 are used to alternately feed filament, ensuring a continuous supply of material. The wiring system 9 is slidably mounted on the filament extrusion device 32. Because the wiring system 9 is slidable, when the filament extrusion device 32 pulls the filament, the wiring system 9 slides downwards with the filament, ensuring that the wiring system 9 can achieve wiring during filament transportation. The printhead system 3 and the blower system 7 are both mounted on the printhead traverse system 4, so that the blower system 7 always blows airflow to the end of the printhead system 3, which helps the material cool and solidify quickly after extrusion. The printhead traverse system 4 drives the printhead system 3 to move laterally. The powder supply system 6 is installed on the output end of the printhead system 3 to supply toner, so that the material forms texture during printing. The platform longitudinal movement system 5 is installed on the printer frame 1 to realize the longitudinal movement of the workpiece. The platform longitudinal movement system 5 is located on the lower side of the printhead system 3. The movement directions of the printhead traverse system 4 and the platform longitudinal movement system 5 are perpendicular to each other. The printhead traverse system 4 is mounted on the printhead lifting system 8, so as to realize the lifting of the printhead system 3.

[0052] The powder supply system 6 includes a blowing fan 62 and a mixing tube 61. The mixing tube 61 is installed at the output end of the printhead system 3, and a sealing plug 64 is installed at the end of the mixing tube 61. The blowing fan 62 is rotatably installed inside the mixing tube 61. An extrusion cylinder 63 is integrally provided in the middle of the mixing tube 61. The extrusion cylinder 63 is connected to the output end of the printhead system 3. The extrusion cylinder 63 is provided with a powder inlet hole 6311. A blowing motor that drives the blowing fan 62 to rotate is installed on the mixing tube 61. The blowing fan 62 drives the toner from the powder inlet hole. 6311 is sprayed onto the molten material. The mixing tube 61 is pre-pressurized to prevent the molten material from overflowing from the powder inlet 6311 into the mixing tube 61, thus achieving the dyeing and extrusion of the molten material. After the powder is used up, the sealing plug 64 is opened to replenish it. It is worth noting that since the powder in the mixing tube 61 is only one color, this technical solution can only print monochrome workpieces. However, by controlling the speed and start / stop of the blowing motor, the amount of powder can be controlled, and the color depth of different areas of the workpiece can be varied.

[0053] For ease of description, the previous thread is defined as old material, and the next thread is defined as new material.

[0054] The wiring system 9 includes a wiring action slider 91, a new material pushing device 92, a new material fixing device 93, a used material fixing device 94, and a welding device 95. The wiring action slider 91 has a parallel cavity 911, a discharge cavity 912, and a cooling air passage 913. The new material pushing device 92 and the new material fixing device 93 are installed opposite each other at the bottom of the parallel cavity 911, with the pushing direction of the new material pushing device 92 pointing towards the new material fixing device 93. The cooling air passage 913 is located below the parallel cavity 911, and the welding device 95 is installed inside the cooling air passage 913. The used material fixing device 94 is installed inside the wiring action slider 91, and the used material fixing device 94 moves towards... During normal printing, the old material is extruded in the direction of the discharge chamber 912. The old material passes through the parallel chamber 911 and the discharge chamber 912 sequentially, while the head of the new material is manually pulled into the parallel chamber 911 to wait until the old material is extracted from the parallel chamber 911. Due to the lack of old material, the new material pushing device 92 pushes the new material to fit against the new material fixing device 93. At the same time, the old material fixing device 94 clamps the old material, and the downward pulling force of the old material is transmitted to the wiring action slider 91 through the old material fixing device 94, causing the wiring action slider 91 to descend with the old material. The welding device 95 extrudes molten material into the gap between the new material and the old material. Because the wiring action slider 91 descends with the old material, Nitrogen gas is introduced into the cooling air passage 913 to rapidly cool and melt the material, so that the old material and the new material are welded. Then, the new material pushing device 92, the new material fixing device 93 and the old material fixing device 94 retract and detach from the combination of the old material and the new material. The wiring action slider 91 rises again to reset. A reset spring 96 is provided on the lower side of the wiring action slider 91 to push the wiring action slider 91 to reset.

[0055] To ensure that the old material is always located on the side of the parallel cavity 911 near the new material fixing device 93 and the old material fixing device 94, the print head system 3 is provided with a limiting ring 33 with a preset opening. The limiting ring 33 pulls the new material to always be located on the side of the parallel cavity 911 near the new material fixing device 93 and the old material fixing device 94. This makes it easier for the next thread to be pushed towards the new material fixing device 93 by the new material pushing device 92, ensuring the continuous operation of the equipment.

[0056] The new material pushing device 92 includes a new material pushing reference electromagnet 921 and a new material pushing slider 922. The new material pushing reference electromagnet 921 is mounted on the wiring action slider 91, and the new material pushing slider 922 is slidably mounted on the wiring action slider 91. The new material pushing reference electromagnet 921 pushes the new material pushing slider 922 to slide, realizing the lateral pushing of the new material, and the reset of the new material pushing slider 922 itself after receiving the material. The new material fixing device 93 includes a new material fixing reference electromagnet 931 and a new material fixing slider 932. The new material fixing reference electromagnet 931 is mounted on the wiring action slider 91, and the new material fixing slider 932 is slidably mounted on the wiring action slider 91. The new material fixing reference electromagnet 931 pushes the new material fixing slider 932 to slide, thereby fixing the new material and resetting the new material fixing slider 932 itself. The old material fixing device 94 includes an old material fixing reference electromagnet 941 and an old material fixing slider 942. The old material fixing reference electromagnet 941 is mounted on the wiring action slider 91, and the old material fixing slider 942 is slidably mounted on the wiring action slider 91. The old material fixing reference electromagnet 941 pushes the old material fixing slider 942 to slide, thereby pushing the old material laterally and resetting the old material fixing slider 942 itself after receiving the material. Both the new material fixing slider 932 and the old material fixing slider 942 are provided with serrations for fixing the wire.

[0057] It is worth noting that the new material pushing slider 922 is equipped with a permanent magnet. After the new material pushing reference electromagnet 921 changes the magnetic field, the permanent magnet changes its own direction of movement. The new material fixing slider 932 is equipped with a permanent magnet. After the new material fixing reference electromagnet 931 changes the magnetic field, the permanent magnet changes its own direction of movement. The old material fixing slider 942 is equipped with a permanent magnet. After the old material fixing reference electromagnet 941 changes the magnetic field, the permanent magnet changes its own direction of movement. The new material pushing slider 922, the old material fixing slider 942, and the new material fixing slider 932 all slide through a slide rail slider.

[0058] The welding apparatus 95 includes a solder injection tube with an electric heating wire wound around its outer circumference to maintain the solder injection temperature.

[0059] Because it takes time for the new material to push the slider 922 towards the old material fixed slider 942, a gap naturally forms between the old and new materials when the old material is continuously conveyed, which facilitates the injection of molten material into the solder injection pipe and makes welding easier.

[0060] Specifically, the printer frame 1 includes a support frame 11, a support base 12, and a diagonal brace 13. The support frame 11 is mounted on the support base 12, and the two ends of the diagonal brace 13 are mounted on the support frame 11 and the support base 12 respectively, thereby ensuring the stability of the support frame 11. The filament feeding system 2 and the platform longitudinal movement system 5 are both mounted on the support frame 11, and the platform longitudinal movement system 5 is mounted on the support base 12.

[0061] Specifically, the wire feeding system 2 includes a wire feeding roller 21 and a wire feeding fixing screw 22. The wire feeding roller 21 is rotatably mounted on the printer frame 1, and the wire feeding fixing screw 22 is mounted on the printer frame 1 through a threaded pair. The wire feeding fixing screw 22 presses against the wire feeding roller 21, thereby fixing the feeding of the wire feeding roller 21.

[0062] Specifically, the printhead system 3 has a conveying channel 31 inside, and a filament extrusion device 32 consisting of a pair of conveying rollers 35 is installed on the printhead system 3. The conveying rollers 35 are installed at both ends of the conveying channel 31 to achieve the supply of filament. The printhead system 3 uses a commercially available conventional electric heating method to melt the material, which will not be described in detail here.

[0063] Specifically, the printhead traversing system 4 includes a printhead traversing block 41 and a printhead traversing motor 42. The printhead traversing block 41 is slidably mounted on the printhead lifting system 8, and the printhead traversing motor 42 is mounted on the printhead lifting system 8. The printhead traversing motor 42 is connected to the printhead traversing block 41 via a synchronous belt, thereby realizing the traversing of the printhead traversing block 41.

[0064] Specifically, the platform longitudinal movement system 5 includes a platform longitudinal movement rail 51, a longitudinal movement platform 52, and a longitudinal movement motor 53. The platform longitudinal movement rail 51 is mounted on the printer frame 1, the longitudinal movement platform 52 is slidably mounted on the platform longitudinal movement rail 51 via a slider, and the longitudinal movement motor 53 is mounted on the printer frame 1. The longitudinal movement motor 53 is connected to the longitudinal movement platform 52 via a synchronous belt, thereby realizing the transverse movement of the workpiece.

[0065] Specifically, the blower system 7 includes a blower 71 and a nozzle 72. The nozzle 72 points to the lower side of the powder supply system 6. The blower 71 is installed on the printhead transverse system 4 to quickly cool the molten filament and ensure that the ornament is quickly shaped.

[0066] Specifically, the printhead lifting system 8 includes a printhead lifting motor 81, a printhead lifting screw 82, and a printhead lifting crossbeam 83. The printhead lifting motor 81 is mounted on the printer frame 1, the printhead lifting screw 82 is mounted on the output end of the printhead lifting motor 81, and the printhead lifting crossbeam 83 is connected to the printhead lifting screw 82 via a threaded connection. The printhead lateral movement system 4 is slidably mounted on the printhead lifting crossbeam 83, thereby realizing the lifting of the printhead system 3.

[0067] A method for 3D printing jewelry, using a jewelry 3D printer, includes the following steps:

[0068] S1: The filament supply system 2 supplies filament to the printhead system 3;

[0069] S2: Printhead lifting system 8 drives printhead system 3 to lift;

[0070] S3: Printhead lateral movement system 4 drives printhead system 3 to move laterally;

[0071] S4: The platform longitudinal movement system 5 drives the substrate movement;

[0072] S5: The filament extrusion device 32 pulls the filament downward, the wiring system 9 automatically connects the wires, the print head system 3 is used to melt the material, and the powder supply system 6 is turned on to dye the molten material;

[0073] S6: Blower system 7 rapidly cools the molten material to prevent the freshly printed material from collapsing and deforming.

[0074] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A jewelry 3D printer characterized by, The system includes a printer frame, two filament supply systems, a wiring system, a printhead system, a printhead traversing system, a platform traversing system, a powder supply system, a blower system, and a printhead lifting system. Both filament supply systems are mounted on the printer frame. A filament extrusion device is located on the upper side of the printhead system, which feeds the filament downwards. The wiring system is slidably mounted on the filament extrusion device. The printhead system and the blower system are both mounted on the printhead traversing system. The powder supply system is mounted on the output end of the printhead system. The platform traversing system is mounted on the printer frame and located below the printhead system. The movement directions of the printhead traversing system and the platform traversing system are perpendicular to each other. The printhead traversing system is mounted on the printhead lifting system. The powder supply system includes a blowing fan and a mixing mechanism. The mixing tube is installed at the output end of the printhead system. A sealing plug is installed at the end of the mixing tube. The blowing fan is rotatably installed inside the mixing tube. An extrusion cylinder is integrally provided in the middle of the mixing tube. The extrusion cylinder is connected to the output end of the printhead system. The extrusion cylinder is provided with a powder inlet hole. The wiring system includes a wiring action slider, a new material pushing device, a new material fixing device, an old material fixing device, and a welding device. The wiring action slider is provided with a parallel cavity, a discharge cavity, and a cooling air channel. The new material pushing device and the new material fixing device are installed opposite each other at the bottom of the parallel cavity. The pushing direction of the new material pushing device is towards the new material fixing device. The cooling air channel is located on the lower side of the parallel cavity. The welding device is installed in the cooling air channel. The old material fixing device is installed in the wiring action slider and is pressed towards the discharge cavity.

2. The jewelry 3D printer according to claim 1, wherein, The printer frame includes a support frame, a support base, and diagonal braces. The support frame is mounted on the support base, and the two ends of the diagonal braces are respectively mounted on the support frame and the support base. The wire feeding system and the platform longitudinal movement system are both mounted on the support frame, and the platform longitudinal movement system is mounted on the support base.

3. The jewelry 3D printer according to claim 1, wherein, The wire feeding system includes a wire feeding roller and a wire feeding fixing screw. The wire feeding roller is rotatably mounted on the printer frame, and the wire feeding fixing screw is mounted on the printer frame via a threaded joint. The wire feeding fixing screw presses against the wire feeding roller.

4. The jewelry 3D printer according to claim 1, wherein, The printhead system has a conveying channel, and a filament extrusion device consisting of a pair of conveying rollers is installed on the printhead system. The conveying rollers are installed at both ends of the conveying channel.

5. A jewelry 3D printer according to claim 1, characterized in that, The printhead traversing system includes a printhead traversing block and a printhead traversing motor. The printhead traversing block is slidably mounted on the printhead lifting system, and the printhead traversing motor is mounted on the printhead lifting system. The printhead traversing motor is connected to the printhead traversing block via a synchronous belt.

6. A jewelry 3D printer according to claim 1, characterized in that, The platform longitudinal movement system includes a platform longitudinal movement rail, a longitudinal movement platform, and a longitudinal movement motor. The platform longitudinal movement rail is mounted on the printer frame. The longitudinal movement platform is slidably mounted on the platform longitudinal movement rail via a slider. The longitudinal movement motor is mounted on the printer frame and is connected to the longitudinal movement platform via a synchronous belt.

7. A jewelry 3D printer according to claim 1, characterized in that, The blower system includes a blower and a nozzle, the nozzle being directed below the powder supply system, and the blower being mounted on the printhead traverse system.

8. A jewelry 3D printer according to claim 1, characterized in that, The printhead lifting system includes a printhead lifting motor, a printhead lifting screw, and a printhead lifting crossbeam. The printhead lifting motor is mounted on the printer frame, the printhead lifting screw is mounted on the output end of the printhead lifting motor, the printhead lifting crossbeam is connected to the printhead lifting screw via a threaded connection, and the printhead traversing system is slidably mounted on the printhead lifting crossbeam.

9. A method for 3D printing jewelry, using the jewelry 3D printer as described in claim 1, characterized in that, Includes the following steps: S1: The filament supply system supplies filament to the printhead system; S2: The printhead lifting system drives the printhead system to rise and fall; S3: The printhead lateral movement system drives the printhead system to move laterally; S4: The platform longitudinal movement system drives the substrate to move; S5: The filament extrusion device pulls the filament downward, the wiring system automatically connects the wires, the print head system is used to melt the material, and the powder supply system is turned on to dye the molten material; S6: The blower system rapidly cools the molten material to prevent the freshly printed material from collapsing and deforming.

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