3D printing equipment

Abstract

The embodiment of the invention relates to the field of additive manufacturing equipment, in particular to 3D printing equipment which comprises a box body, a printing assembly, a bearing assembly, a limiting assembly and a bearing driving assembly. The box body is arranged to form a closed accommodating space; the printing assembly is arranged in the containing space and used for providing powder raw materials and printing the powder raw materials into bars. The bearing assembly is arranged in the containing space and used for bearing powder raw materials and bars. The limiting assembly is arranged in the containing space and used for forming a limiting space above the bearing assembly so as to provide radial limiting for the bars. The bearing assembly and the limiting assembly can conduct heat treatment on the bars. The bearing driving assembly is arranged on the limiting assembly and matched with the limiting assembly to drive the bearing assembly to ascend and descend. The 3D printing equipment provided by the embodiment of the invention can be used for 3D printing of bars of various lengths, and bending deformation of the bars formed by printing can be avoided.

Description

Technical Field

[0001] Embodiments of this application relate to the field of additive manufacturing equipment, specifically to a 3D printing device. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] When using 3D printing technology to prepare rods from metal powder, the metal powder is selectively melted using a laser or electron beam, and the molten metal powder is deposited layer by layer to form a metal rod. This technology eliminates the need for molds to shape the metal powder and enables the manufacture of high-precision, complex-structured metal rods, as well as improving the utilization rate of metal powder.

[0004] However, there are still many problems with the technology of using 3D printing equipment to print alloy powder into rods. Summary of the Invention

[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] To address the aforementioned problems, embodiments of this application provide a 3D printing device, comprising a housing, a printing component, a support component, a limiting component, and a support drive component. The housing is configured to form a sealed receiving space; the printing component is disposed within the receiving space for providing powder material and printing the powder material into a rod; the support component is disposed within the receiving space for supporting the powder material and the printed rod; the limiting component is disposed within the receiving space for forming a limiting space above the support component to provide radial limiting for the rod; the support component and the limiting component are also configured to perform heat treatment on the rod; the support drive component is disposed within the limiting component, and the support drive component cooperates with the limiting component to drive the support component to move up and down.

[0007] The 3D printing equipment provided in the embodiments of this application uses a carrier component to carry powder raw materials and the printed rod, a limiting component to form a limiting space 401 above the carrier component to provide radial limiting for the rod, and a carrier drive component to drive the carrier component to rise and fall. This allows the 3D printing equipment to be used for 3D printing rods of various lengths and can prevent the printed rods from bending and deforming. In addition, since the carrier drive component is located on the limiting component and cooperates with the limiting component to drive the carrier component to rise and fall, it is beneficial to make reasonable use of space and reduce the height of the accommodating space. At the same time, the carrier component and the limiting component are configured to perform heat treatment on the rod, so that the 3D printing equipment can perform annealing treatment on the rod, thereby eliminating the need to remove the rod and send it to a special annealing equipment for annealing, which can shorten the printing time and improve the printing efficiency of the rod. Attached Figure Description

[0008] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0009] Figure 1 This is a schematic diagram of the structure of the 3D printing equipment provided in the embodiments of this application.

[0010] Figure 2 yes Figure 1 The diagram shows the structure of the 3D printing equipment with the door body omitted.

[0011] Figure 3 This is a schematic diagram of the structure of the 3D printing equipment provided in the embodiments of this application after the assemblies of the limiting component body and the load-bearing drive component.

[0012] Figure 4 yes Figure 3 The diagram shows the structure of the first limiting member.

[0013] Figure 5 yes Figure 3 The diagram shown is a schematic representation of the structure from another angle.

[0014] Figure 6 yes Figure 5 The diagram shows the structure of the rotating component.

[0015] Figure 7 yes Figure 5 The diagram shown illustrates the structure of the load-bearing drive assembly after omitting the crank.

[0016] Figure 8 yes Figure 1 The diagram shows the structure of the load-bearing component.

[0017] Figure 9 yes Figure 8The diagram shows the internal structure of the load-bearing component.

[0018] Figure 10 yes Figure 2 The diagram shows the structure of the printed components, shielding box, and gas storage container after assembly.

[0019] Figure 11 yes Figure 10 The diagram shown is a structural schematic from another angle.

[0020] Figure 12 yes Figure 10 The schematic diagram of the printhead movement drive component is omitted in the shown structure.

[0021] Figure 13 This is a structural diagram of the box.

[0022] Figure 14 yes Figure 1 The diagram shows the structure of the door.

[0023] Explanation of reference numerals in the attached figures: 100. 3D printing equipment; 101. Storage space; 10. Enclosure; 11. Door; 111. Handle; 112. Door body; 113. Shielding plate; 12. Enclosure body; 121. First side plate; 122. Second side plate; 123. Bottom plate; 124. Top plate; 1240. Clearance groove; 125. Shielding shell; 13. Enclosed drive component; 20. Printing assembly; 21. Material storage cylinder; 22. Material storage lifting drive; 23. Laser print head; 24. Print head moving drive; 241. First moving drive cylinder; 2411. First moving drive cylinder body; 2412. First moving drive plunger; 242. Second moving drive cylinder; 2421. Second moving drive cylinder body; 2422. Second moving drive plunger; 243. First moving slider; 244. Second moving slider; 245. Moving slide rail; 30. Bearing component; 31. Bearing base; 32. Screw; 33. Bearing part; 330. Bearing groove; 331. Induction coil; 332. Induction power supply; 301. Nut; 40. Limiting component; 401. Limiting space; 41. Limiting mounting part; 411. Limiting mounting body; 412. Rotating mating part; 413. Rotating support; 414. First mounting part; 415. Second mounting part; 42. First limiting member; 421. First limiting body; 422. First limiting connector; 423. First rotating shaft; 43. Second limiting member; 44. First limiting drive assembly; 441. Limiting drive motor; 442. First pulley; 43. Second pulley; 444. First transmission belt; 445. Third pulley; 446. Second transmission belt; 45. Second limit drive assembly; 451. Gear; 452. Rack; 453. Limit drive cylinder; 4531. Limit drive cylinder body; 4532. Limit drive plunger; 454. Rotating component; 4541. Rotating body; 4542. First rotating rod; 4543. Second rotating rod; 455. Connecting component; 456. Lever; 46. Fixing component; 50. Load-bearing drive assembly; 51. Crank; 52. Load-bearing drive cylinder; 521. Load-bearing drive cylinder body; 522. Load-bearing drive plunger; 53. Locking assembly; 531. Locking element; 532. Locking mating element; 533. Return spring; 54. Unlocking element; 541. Unlocking drive cylinder body; 542. Unlocking drive plunger; 55. Mounting base; 60. Shielding enclosure; 601. Moving slide rail; 602. Shielding glass; 70. Image acquisition equipment; 80. Gas storage container; 801. First rigid pipe; 802. Second rigid pipe; 803. Third rigid pipe; 90. Drive gas storage container; 901. First flexible tube; 902. Second flexible tube.

[0024] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0025] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0026] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0027] In related technologies, the length of the metal rod formed by 3D printing is usually determined by the length of the 3D printing equipment. When the length of the metal rod to be printed increases, a 3D printing equipment with a longer length is required, which increases the volume ratio of the 3D printing equipment. Furthermore, in related technologies, after the metal rod is printed, it needs to be sent to a special annealing equipment for annealing, which is time-consuming and inefficient. Also, because related technologies cannot provide effective support for the printed metal rod, when the length of the printed rod is long, the metal rod will bend and deform due to its own weight and high center of gravity.

[0028] To address at least one aspect of the above-mentioned problems, embodiments of this application provide a 3D printing device.

[0029] See Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the 3D printing device 100 provided in the embodiments of this application. Figure 2 yes Figure 1 The diagram shown illustrates the structure of the 3D printing equipment 100 after omitting the door body 11. Figure 3 This is a schematic diagram of the assembled structure of the limiting component body and the support drive component 50 of the 3D printing equipment 100 provided in the embodiments of this application. The 3D printing equipment 100 provided in the embodiments of this application may include a housing 10, a printing component 20, a support component 30, a limiting component 40, and a support drive component 50. The housing 10 is configured to form a closed receiving space 101; the printing component 20 is disposed in the receiving space 101 and is used to provide powder raw material and print the powder raw material into a rod; the support component 30 is disposed in the receiving space 101 and is used to support the powder raw material and the printed rod; the limiting component 40 is disposed in the receiving space 101 and is used to form a limiting space 401 above the support component to provide radial limiting for the rod; the support component 30 and the limiting component 40 are also configured to perform heat treatment on the rod; the support drive component 50 is disposed on the limiting component 40, and the support drive component 50 cooperates with the limiting component 40 to drive the support component 30 to rise and fall.

[0030] The 3D printing equipment 100 provided in the embodiments of this application uses a support component 30 to support powder raw materials and the printed rod, a limiting component 40 to form a limiting space 401 above the support component 30 to provide radial limiting for the rod, and a support drive component 50 to drive the support component 30 to move up and down. This allows the 3D printing equipment 100 to 3D print rods of various lengths and avoids bending and deformation of the printed rod. In addition, since the support drive component 50 is disposed on the limiting component 40 and cooperates with the limiting component 40 to drive the support component 30 to move up and down, it is beneficial to make reasonable use of space and reduce the height of the accommodating space 101. At the same time, the support component 30 and the limiting component 40 are configured to perform heat treatment on the rod, so that the 3D printing equipment 100 can perform annealing treatment on the rod, thereby eliminating the need to remove the rod and send it to a special annealing equipment for annealing, which can shorten the printing time of the rod and improve the printing efficiency of the rod.

[0031] In some embodiments, the powder material is, for example, uranium-plutonium-zirconium ternary alloy powder.

[0032] It is easy to understand that the printed rod is located within the support component 30 and extends into the limiting space 401 of the limiting component 40, so that it is supported by the support component 30 and radially limited by the limiting component 40.

[0033] See Figure 2 and Figure 3 In some embodiments, the limiting component 40 may include a limiting mounting member 41, a first limiting member 42, a first limiting drive component 44, a second limiting member 43, and a second limiting drive component 45. The first limiting member 42 and the second limiting member 43 are rotatably connected to the limiting mounting member 41, respectively. The first limiting member 42 and the second limiting member 43 are used to form a limiting space 401 for radially limiting the bar. The first limiting member 42 and the second limiting member 43 are also configured to perform heat treatment on the bar. The first limiting drive component 44 is used to drive the first limiting member 42 to rotate relative to the limiting mounting member 41. The second limiting drive component 45 is used to drive the second limiting member 43 to rotate relative to the limiting mounting member 41, and cooperates with the load-bearing drive component 50 to enable the load-bearing component 30 to rise and fall. In this embodiment, the first limiting member 42 and the second limiting member 43 can rotate relative to the limiting mounting member 41, so that the rotation of the two can form a limiting space 401 to radially limit the rod. At the same time, after the rod is printed, the rotation of the first limiting member 42 and the second limiting member 43 can expand the limiting space 401, thereby facilitating the removal of the printed rod. Furthermore, the heat treatment of the rod by the first limiting member 42 and the second limiting member 43 is beneficial to uniformly heat-treat the rod in the limiting space 401, thereby improving the annealing effect of the rod in the limiting space 401.

[0034] In some embodiments, when the bar is radially limited, the first limiting member 42 and the second limiting member 43 both rotate relative to the limiting mounting member 41, so that the first limiting member 42 abuts against the second limiting member 43, thereby forming a limiting space 401.

[0035] See Figure 4 , Figure 4 yes Figure 3 The schematic diagram of the first limiting member 42 shown illustrates that, in some embodiments, the first limiting member 42 may include a first limiting body 421, a first limiting connector 422, and a first rotating shaft 423. The first limiting body 421, together with the second limiting member 43, forms a limiting space 401 for limiting the bar. The first limiting body 421 is also configured to perform heat treatment on the bar. The first rotating shaft 423 is fixedly connected to the first limiting body 421 via the first limiting connector 422. The first rotating shaft 423 is also configured to be rotatably connected to the limiting mounting member 41. The first limiting drive assembly 44 can drive the first rotating shaft 423 to rotate relative to the limiting mounting member 41, thereby causing the first limiting body 421 to rotate relative to the limiting mounting member 41.

[0036] In some embodiments, the second limiting member 43 has a similar structure to the first limiting member 42, that is, the second limiting member 43 may include a second limiting body, a second limiting connector, and a second rotating shaft. The second limiting body and the first limiting body 421 are used together to form a limiting space 401 for limiting the bar. The second limiting body is also configured to perform heat treatment on the bar. The second rotating shaft is fixedly connected to the second limiting body through the second limiting connector. The second rotating shaft is also configured to be rotatably connected to the limiting mounting member 41. The second limiting drive assembly 45 can drive the second rotating shaft to rotate relative to the limiting mounting member 41, thereby driving the second limiting body to rotate relative to the limiting mounting member 41.

[0037] The first limiting body 421 and the second limiting body can be semi-circular rings with the same diameter. When the first limiting body 421 and the second limiting body rotate to abut against each other, the two semi-circular rings close to form a cylindrical limiting space 401.

[0038] See Figure 2 and Figure 3In some embodiments, the first limiting drive assembly 44 may include a limiting drive motor 441, a first pulley 442, a second pulley 443, and a transmission belt. The first pulley 442 is connected to the limiting drive motor 441 so that the limiting drive motor 441 drives the first pulley 442 to rotate; the second pulley 443 is connected to the first limiting member 42; the second pulley 443 rotates synchronously with the first pulley 442 through the transmission belt, thereby driving the first limiting member 42 to rotate. In such an embodiment, by setting the first pulley 442, the transmission belt, and the second pulley 443, the rotation of the limiting drive motor 441 is transmitted to the first limiting member 42, thereby driving the first limiting member 42 to rotate.

[0039] In some embodiments, the second pulley 443 is fixedly connected to the first limiting connector 422.

[0040] In some embodiments, the first limiting drive assembly 44 may further include a third pulley 445, which is fixedly connected to the second limiting connector. The first pulley 442 rotates synchronously with the third pulley 445 via a first transmission belt 444, and the third pulley 445 rotates synchronously with the second pulley 443 via a second transmission belt 446. In this embodiment, the above arrangement can prevent the first transmission belt 444 from interfering with the first limiting body 421 and the second limiting body, thereby preventing the first transmission belt 444 from affecting the rotation of the first limiting body 421 and the second limiting body.

[0041] See Figure 3 and Figure 5 , Figure 5 yes Figure 3The schematic diagram shown from another angle illustrates that, in some embodiments, the second limiting drive assembly 45 may include a gear 451, a rack 452, a limiting drive cylinder 453, a rotating member 454, a connecting member 455, and a lever 456. The gear 451 is rotatably mounted on the limiting mounting member 41; the rack 452 meshes with the gear 451; the limiting drive cylinder 453 is mounted on the limiting mounting member 41 and is used to drive the rack 452 to move, thereby causing the gear 451 to rotate; the rotating member 454 is rotatably mounted on the limiting mounting member 41 and is configured to rotate synchronously driven by the gear 451; the connecting member 455 is rotatably mounted on the limiting mounting member 41 and connected to the second limiting member 43; the lever 456 is connected to the connecting member 455, and when the rotating member 454 rotates, the lever 456 is actuated, thereby causing the connecting member 455 and the second limiting member 43 to rotate. In this embodiment, the rack 452 is moved by the limit drive cylinder 453 and the rack 452 meshes with the gear 451 so that the gear 451 can drive the connecting member 455 and the second limit member 43 to rotate, thereby driving the second limit member 43 to rotate. Furthermore, in the embodiments of this application, the second limit member 43 is driven to rotate by the limit drive cylinder 453, without the need for an additional drive motor, which helps to reduce the space occupied by the second limit drive assembly 45.

[0042] See Figure 3 In some embodiments, the limiting mounting member 41 may include a limiting mounting body 411, a rotating mating part 412, and a rotating support 413. The rotating mating part 412 and the rotating support 413 are disposed on the limiting mounting body 411. The rotating mating part 412 is configured to form a rotating mating groove, through which the first rotating shaft 423 and the second rotating shaft can enter. Through the engagement of the first rotating shaft 423 and the second rotating shaft with the rotating mating groove, the first rotating shaft 423 and the second rotating shaft can rotate relative to the rotating mating part 412, thereby enabling the first limiting body 421 and the second limiting body to rotate relative to the rotating mating part 412. The connecting member 455 is configured to rotate around the rotating support 413 so as to drive the second limiting member to rotate.

[0043] In some embodiments, the connector 455 is a semi-circular ring that is rotatable about the rotating support 413.

[0044] See Figure 5 In some embodiments, the limit drive cylinder 453 may include a limit drive cylinder body 4531 and a limit drive plunger 4532, the limit drive plunger 4532 being capable of telescopic movement relative to the limit drive cylinder body 4531.

[0045] In some embodiments, the limiting component 40 may further include a fixing member 46 for fixing the limiting drive cylinder 453 to the limiting mounting body 411.

[0046] See Figure 5 and Figure 6 , Figure 6 yes Figure 5 The schematic diagram of the rotating component 454 shown illustrates that, in some embodiments, the rotating component 454 may include a rotating body 4541, a first rotating rod 4542, and a second rotating rod 4543. The first rotating rod 4542 and the second rotating rod 4543 are fixedly connected to the rotating body 4541. The rotating body 4541 is rotatably disposed on the limiting mounting member 41 and is configured to be driven by the gear 451 to rotate synchronously, thereby driving the first rotating rod 4542 and the second rotating rod 4543 to rotate synchronously. A lever 456 is disposed between the first rotating rod 4542 and the second rotating rod 4543. When the rotating component 454 rotates, the first rotating rod 4542 or the second rotating rod 4543 can actuate the lever 456.

[0047] In some embodiments, the first limiting member 42 and the second limiting member 43 are made of conductive material, and the rod is induction heated by passing an alternating current through the first limiting member 42 and the second limiting member 43. In such embodiments, induction heating of the rod by the first limiting member 42 and the second limiting member 43 is beneficial for uniform heating of the rod, thereby improving the annealing effect.

[0048] The first limiting body 421 and the second limiting body can be made of conductive material.

[0049] In some embodiments, the limiting mounting body 411 is further provided with a wire for energizing the first limiting body 421 and the second limiting body.

[0050] In some embodiments, the load-bearing drive assembly 50 may include a crank 51, a load-bearing drive cylinder 52, a locking assembly 53, and an unlocking member 54. The crank 51 is rotatably mounted on the limiting mounting member 41 and configured to rotate to a vertically downward position under the drive of the gear 451. One end of the load-bearing drive cylinder 52 is rotatably connected to the crank 51, and the other end is rotatably connected to the load-bearing assembly 30. The locking assembly 53 locks the load-bearing drive cylinder 52 during crank 51 rotation to prevent it from extending. The unlocking member 54 unlocks the load-bearing drive cylinder 52 after the crank 51 has rotated to the vertically downward position, allowing the load-bearing drive cylinder 52 to extend and drive the load-bearing assembly 30 downward. In this embodiment, by providing the crank 51 and the load-bearing drive cylinder 52, the range of descent of the load-bearing assembly 30 is increased. Since the crank 51 is driven to rotate by the gear 451 (i.e., the gear 451 rotates simultaneously with the second limiting member 43 and the crank 51), the space occupied by the load-bearing drive assembly 50 is reduced. To prevent the load-bearing drive cylinder 52 from affecting the precise control of the descent speed of the load-bearing assembly 30 due to its own extension and retraction during the rotation of the crank 51, the embodiments of this application lock the load-bearing drive cylinder 52 with the locking component 53 to prevent the length of the load-bearing drive cylinder 52 from changing, thereby facilitating precise control of the descent speed of the load-bearing assembly 30.

[0051] In some embodiments, the limiting mounting member 41 may further include a first mounting portion 414, which is fixedly connected to the limiting mounting body 411, and the rotating body 4541, gear 451 and crank 51 are rotatably mounted on the first mounting portion 414.

[0052] In some embodiments, the limiting mounting member 41 may further include a second mounting part 415, which is fixedly connected to the limiting mounting body 411. The second mounting part 415 is arranged parallel to the first mounting part 414. The second mounting part 415 is used to support the lever 456 together with the first mounting part 414 to avoid interference between the lever 456 and the crank 51 during the turning process.

[0053] In some embodiments, the limiting mounting body 411, the first mounting part 414, and the second mounting part 415 can be integrally formed to improve the structural strength of the limiting mounting member 41.

[0054] See Figure 7 , Figure 7 yes Figure 5The schematic diagram shown omits the crank of the load-bearing drive assembly. In some embodiments, the unlocking member 54 can be an unlocking drive cylinder. The locking assembly 53 may include a locking member 531 and a locking engagement member 532. The locking member 531 is used to engage with the load-bearing drive cylinder 52 to prevent the load-bearing drive cylinder 52 from extending. The locking member 531 is disposed on the locking engagement member 532. The unlocking drive cylinder 54 is connected to the locking engagement member 532 and the load-bearing drive cylinder 52 and is used to move the locking member 531 away from the load-bearing drive cylinder 52 by extending, thereby releasing the lock on the load-bearing drive cylinder 52. The locking assembly 53 may also include a return spring 533, which is used to move the locking member 531 toward the load-bearing drive cylinder 52 when the unlocking drive cylinder 54 shortens, thereby locking the load-bearing drive cylinder 52. In such an embodiment, the above-described configuration enables the locking member 531 to lock the load-bearing drive cylinder 52 to prevent the load-bearing drive cylinder 52 from extending during the rotation of the crank 51 to the vertically downward position, and enables the unlocking member 54 to unlock the load-bearing drive cylinder 52 after the crank 51 has been rotated to the vertically downward position, so as to ensure that the load-bearing drive cylinder 52 can extend, thereby driving the load-bearing assembly 30 to descend.

[0055] In some embodiments, the load-bearing drive cylinder 52 may include a load-bearing drive cylinder body 521 and a load-bearing drive plunger 522, the load-bearing drive plunger 522 being retractable relative to the load-bearing drive cylinder body 521. In some embodiments, a locking member 531 may enter the load-bearing drive cylinder body 521 and insert into the load-bearing drive plunger 522 to prevent movement of the load-bearing drive plunger 522, thereby locking the load-bearing drive cylinder 52.

[0056] In some embodiments, the number of return springs 533 can be multiple, and the multiple return springs 533 are symmetrically arranged at both ends of the locking engagement member 532 to ensure that the locking engagement member 532 can be moved to the position where the locking member 531 enters the bearing drive cylinder 52.

[0057] For example, there are two return springs 533.

[0058] In some embodiments, the unlocking drive cylinder 54 may include an unlocking drive cylinder body 541 and an unlocking drive plunger 542.

[0059] See Figure 7 In some embodiments, the unlocking component 54 may further include a mounting base 55 for mounting the unlocking component 54 to the bearing drive cylinder 521; the mounting base 55 is disposed on the bearing drive cylinder 521 and is configured to be fixedly connected to the unlocking component 54.

[0060] In some embodiments, the mounting base 55 is fixedly connected to the unlocking drive cylinder 541.

[0061] See Figure 1 , Figure 8 as well as Figure 9 In some embodiments, the support assembly 30 may include a support base 31, a screw 32, and a support portion 33. The support base 31 is rotatably connected to the support drive cylinder 52; the screw 32 is connected to the support base 31, and a nut 301 that can rotate relative to the limiting mounting member 41 is provided in the limiting mounting member 41, so that the screw 32 can be raised or lowered relative to the support base 31 by the rotation of the nut 301 relative to the limiting mounting member 41; the support portion 33 is provided on the support base 31, and the support portion 33 forms a support groove 330, which is used to support the powder raw material and the printed rod; an induction coil 331 is provided inside the support portion 33 for heat treatment of the rod in the support groove 330. In this embodiment, the screw 32 and nut 301 work together to limit the lifting of the support base 31 and prevent it from shifting laterally. At the same time, the limiting mounting part 41 provides support for the support base 31. By setting the induction coil 331 to heat treat the bar in the support groove 330, it is beneficial to perform uniform heat treatment on the bar in the support groove 330, thereby improving the annealing effect of the bar in the support groove 330.

[0062] In some embodiments, a ball bearing is provided inside the nut 301 so that the nut 301, the screw 32 and the ball bearing together form a ball screw, thereby transmitting the rotation of the nut 301 to the screw 32 through the ball bearing, enabling the screw 32 to rise and fall relative to the support base 31, and reducing the friction between the nut 301 and the screw 32.

[0063] In some embodiments, the rotating support 413 forms a through hole; the nut 301 is rotatably disposed in the through hole. The screw 32 passes through the through hole of the rotating support 413 and is threadedly engaged with the nut 301.

[0064] In some embodiments, the support portion 33 is further provided with an induction power supply 332 for energizing the induction coil 331 so that the induction coil 331 can perform heat treatment on the bar in the support groove.

[0065] In some embodiments, see Figure 2 and Figure 10In some embodiments, the 3D printing equipment 100 may further include a shielded enclosure 60. The shielded enclosure 60 is disposed within the enclosure 10, and the door 11 of the enclosure 10 is provided with a shielding plate 113 for engaging with the shielded enclosure 60. A limit drive motor 441 and a first pulley 442 are disposed outside the shielded enclosure 60, and a first transmission belt 444 passes through the shielded enclosure 60 and enters its interior; other structures supporting the drive assembly 50, the limit assembly 40, and the support assembly 30 are disposed within the shielded enclosure 60. In such embodiments, since the powder material is radioactive, the shielded enclosure 60 helps prevent radioactive leakage, and since the limit drive motor 441 is disposed outside the shielded enclosure 60, radiation to the limit drive motor 441 is reduced.

[0066] See Figure 10 In some embodiments, the printing assembly 20 may include a storage cylinder 21, a storage lifting drive 22, a laser printhead 23, and a printhead moving drive 24. The storage cylinder 21 is used to provide powder raw materials; the storage lifting drive 22 is used to drive the storage cylinder 21 to move up and down; the laser printhead 23 is used to use a laser to melt the powder raw materials to form a rod; the printhead moving drive 24 is used to drive the laser printhead 23 to translate; wherein, when the printhead moving drive 24 drives the laser printhead 23 to move directly below the storage cylinder 21, the printhead moving drive 24 can move downward together with the laser printhead 23 under the action of the storage lifting drive 22.

[0067] In this embodiment, the laser print head 23 is translated by the print head moving drive 24, which enables the printing of rods. At the same time, the laser print head 23 can be moved to a position offset from the storage cylinder 21, thereby facilitating the lifting and lowering of the storage cylinder 21 to feed material into the carrier assembly 30. Simultaneously, the laser print head 23 can also be moved to a position directly below the storage cylinder 21 by the print head moving drive 24, so that the storage cylinder 21 can be driven down by the storage lifting drive 22, and the print head moving drive 24 and the laser print head 23 can also be lowered, thereby enabling the laser print head 23 to print powder materials.

[0068] In some embodiments, see Figure 10The shielding housing 60 forms a sliding track 601, which extends along the height direction of the shielding housing 60. The printhead moving drive 24 can slide along the sliding track 601. The printing assembly 20 may also include a reset member, which provides an upward force to the printhead moving drive 24 along the sliding track 601, so that when the laser printhead 23 moves to a position offset from the material storage cylinder 21, the printhead moving drive 24 and the laser printhead 23 can rise and reset under the action of the reset member. Thus, through the cooperation of the printhead moving drive 24, the material storage lifting drive 22, and the reset member, the lifting of the laser printhead 23 can be realized, thereby eliminating the need for a separate lifting mechanism for the laser printhead 23 and saving space.

[0069] In some embodiments, a movable slide 601 is formed on the side of the shielded housing 60 where a limit drive motor 441 is provided.

[0070] In some embodiments, the reset element is, for example, a nitrogen spring. The storage lifting drive 22 is, for example, an electric push rod.

[0071] In some embodiments, the printhead movement drive 24 is configured to drive the laser printhead 23 to translate along the width and length directions of the shielded housing 60.

[0072] See Figure 10 In some embodiments, the printhead movement drive 24 may include a first movement drive cylinder 241, a second movement drive cylinder 242, a first movement slider 243, a second movement slider 244, and a movement rail 245. The first movement slider 243 is slidable along the movement rail 601; the movement rail 245 is disposed on the first movement slider 243, and the second movement slider 244 is slidably disposed on the movement rail 245. The first movement drive cylinder 241 is fixedly disposed on the movement rail 245, the second movement drive cylinder 242 is fixedly disposed on the second movement slider 244, and the laser printhead 23 is connected to the second movement drive cylinder 242. The first movement drive cylinder 241 drives the second movement slider 244 to slide along the movement rail 245, and the second movement drive cylinder 242 drives the laser printhead 23 to move in a direction perpendicular to both the movement rail 245 and the movement rail 601. In this embodiment, the above-mentioned arrangement enables the laser printhead 23 to translate in three directions, which is beneficial for the laser printhead 23 to fully print the powder material.

[0073] In some embodiments, the 3D printing equipment 100 may further include an image acquisition unit 70 and a gas storage container 80. The image acquisition unit 70 is disposed between the shielded enclosure 60 and the enclosure 10, and a shielding glass 602 is provided on the side of the shielded enclosure 60 facing the image acquisition unit 70; the gas storage container 80 is used to supply gas to the cylinder; the gas storage container 80 is disposed between the shielded enclosure 60 and the enclosure 10. In such an embodiment, by acquiring images inside the shielded enclosure 60 through the image acquisition unit 70, the printing status of the powder material can be monitored, thereby allowing the printed rod to be removed in a timely manner; the shielding glass 602 on the side of the shielded enclosure 60 facing the image acquisition unit 70 can prevent the radioactivity inside the shielded enclosure 60 from affecting the image acquisition unit, and also avoid affecting the image acquisition unit 70's image acquisition.

[0074] Image acquisition device 70 is, for example, a surveillance camera.

[0075] The material of the shielding enclosure 60 is, for example, lead.

[0076] In some embodiments, the storage cylinder 21 is coaxial with the bearing trough 330 to facilitate the supply of powder raw materials from the storage cylinder 21 to the bearing trough 330. A discharge hole is formed on the bottom wall of the storage cylinder 21. When the storage cylinder 21 is lowered into the bearing trough 330 by the storage lifting drive 22 and then stops abruptly, the powder raw materials in the storage cylinder 21 enter the bearing trough 330 through the discharge hole. The bottom wall of the storage cylinder 21 is flat, allowing the storage cylinder 21 to be lowered by the storage lifting drive 22 after the powder raw materials enter the bearing trough 330, thereby flattening the powder raw materials using the bottom wall of the storage cylinder 21.

[0077] In some embodiments, the gas storage container 80 can be used to supply gas to the first movable drive cylinder 241 and the second movable drive cylinder 242, so as to extend the first movable drive cylinder 241 and the second movable drive cylinder 242. The gas storage container 80 is connected to the first movable drive cylinder 241 through a first rigid pipe 801 to supply gas to the first movable drive cylinder 241. The gas storage container 80 is connected to the second movable drive cylinder 242 through a second rigid pipe 802 to supply gas to the second movable drive cylinder 242.

[0078] In some embodiments, an air pump is provided on the first rigid tube 801 and the second rigid tube 802 to control the flow of gas in the cylinder and the gas storage container 80, so as to realize the extension and retraction of the cylinder.

[0079] See Figure 10In some embodiments, the first moving drive cylinder 241 may include a first moving drive cylinder body 2411 and a first moving drive plunger 2412, the first moving drive plunger 2412 being fixedly connected to the second moving slider 244; when the gas storage container 80 supplies gas to the first moving drive cylinder body 2411, the gas entering the first moving drive cylinder body 2411 can drive the first moving drive plunger 2412 and the second moving slider 244 to translate away from the door body 11; when the gas storage container 80 stops supplying gas to the first moving drive cylinder body 2411, the gas in the first moving drive cylinder body 2411 flows back to the gas storage container 80, and the first moving drive plunger 2412 drives the second moving slider 244 to translate closer to the door body 11.

[0080] See Figure 10 In some embodiments, the second moving drive cylinder 242 may include a second moving drive cylinder body 2421 and a second moving drive plunger 2422, the second moving drive plunger 2422 being fixedly connected to the laser print head 23; when the gas storage container 80 supplies gas to the second moving drive cylinder body 2421, the gas entering the second moving drive cylinder body 2421 can drive the second moving drive plunger 2422 and the laser print head 23 to translate in a direction closer to the shielding glass 602; when the gas storage container 80 stops supplying gas to the second moving drive cylinder body 2421, the gas in the second moving drive cylinder body 2421 flows back to the gas storage container 80, and the second moving drive plunger 2422 drives the laser print head 23 to translate in a direction away from the shielding glass 602.

[0081] In some embodiments, the gas storage container 80 can be used to supply gas to the limit drive cylinder 453 so that the limit drive cylinder 453 extends.

[0082] The gas storage container 80 is connected to the limit drive cylinder body 4531 of the limit drive cylinder 453 through the third rigid pipe 803, so that gas can enter the limit drive cylinder body 4531.

[0083] See Figure 11 and Figure 12 In some embodiments, the 3D printing apparatus 100 may further include a drive gas reservoir 90 for supplying gas to the support drive cylinder 52 and the unlock drive cylinder 54. The drive gas reservoir 90 is connected to the support drive cylinder body 521 of the support drive cylinder 52 via a first flexible tube 901 to allow gas to enter the support drive cylinder body 521; the drive gas reservoir 90 is connected to the unlock drive cylinder body 541 of the unlock drive cylinder 54 via a second flexible tube 902 to allow gas to enter the unlock drive cylinder 541.

[0084] In some embodiments, a gas pump is provided on the first flexible tube 901 and the second flexible tube 902 for controlling the flow of gas between the drive gas storage container 90 and the cylinder.

[0085] See Figure 1 and Figure 13 , Figure 13 yes Figure 1 The schematic diagram of the structure of the box 10 shown shows that in some embodiments, the box 10 may include a door 11 and a box body 12, the box body 12 forming an accommodating space 101 with an opening, and the door 11 can be used to close the opening.

[0086] See Figure 1 and Figure 14 , Figure 14 yes Figure 1 The schematic diagram of the door body 11 shown illustrates that, in some embodiments, the door body 11 may include a handle 111, a door body 112, and a shielding plate 113. The handle 111 is disposed on the door body 112, which is used to open or close the opening; the shielding plate 113 is disposed on the side of the door body 112 facing the shielding box 60, so as to cooperate with the shielding box 60 to close the shielding box 60.

[0087] In some embodiments, when the door body 112 moves toward the housing body 12, the shielding plate 113 contacts and is squeezed at the end of the shielding housing 60 facing the shielding plate 113, thereby enhancing the sealing of the shielding housing 60 and the housing 10.

[0088] In some embodiments, the door body 112 may be made of lead to prevent radioactive leakage within the shielded enclosure 60.

[0089] In some embodiments, an inert gas is stored between the door body 112 and the shielding plate 113.

[0090] In some embodiments, the enclosure 10 may further include a closed drive member 13 disposed on the enclosure body 12 for driving the door body 112 to rotate relative to the enclosure body 12, so that the door body 112 moves in a direction away from the enclosure body 12 or in a direction closer to the enclosure body 12.

[0091] The enclosed drive component 13 is, for example, a servo motor. The output end of the servo motor is fixedly connected to the upper end of the door body 112 to drive the door body 112 to rotate.

[0092] See Figure 13In some embodiments, the main body 12 of the enclosure may include two first side plates 121, a second side plate 122, a bottom plate 123, a top plate 124, and a shielding shell 125. The two first side plates 121 are disposed opposite each other on both sides of the second side plate 122 and are connected to the second side plate 122; the bottom plate 123 is connected to the bottom ends of the two first side plates 121 and the second side plate 122, and the top plate 124 is connected to the top ends of the two first side plates 121 and the second side plate 122. The shielding shell 125 is disposed on the top of the top plate 124.

[0093] Image acquisition device 70 is disposed on a first side plate 121; top plate 124 is also configured to form a relief groove 1240, through which gas storage container 80 enters shielding shell 125 so that shielding shell 125 provides radiation shielding to gas storage container 80.

[0094] The first side plate 121, the second side plate 122, the bottom plate 123, the top plate 124, and the shielding shell 125 are made of lead, for example, to prevent radioactive leakage of the powdered raw materials.

[0095] See Figure 10 In some embodiments, the storage lifting drive 22 is disposed on the top plate 124 and configured to enter the receiving space 101 after passing through the top plate 124 and the shielding box 60, so as to drive the storage cylinder 21 to move up and down within the receiving space 101.

[0096] The printing process of the 3D printing device 100 provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0097] The first moving drive cylinder 241 drives the second moving slider 244 to move backward in the moving slide rail 245, thereby driving the laser print head 23 to move backward, making room for the material storage cylinder 21 to descend.

[0098] Then, the electric push rod 22 drives the storage cylinder 21 to descend rapidly. When the lower end of the storage cylinder 21 enters the bearing groove 330, the electric push rod 22 immediately stops descending. At this time, the uranium-plutonium-zirconium ternary alloy powder in the storage cylinder 21 leaks out from the discharge hole of the storage cylinder 21 into the bearing groove 330 due to inertia. After that, the electric push rod 22 drives the storage cylinder 21 to descend slowly again, so that the lower surface of the storage cylinder 21 flattens the uranium-plutonium-zirconium ternary alloy powder in the bearing groove 330.

[0099] Then, the electric push rod 22 drives the storage cylinder 21 to move upward and return to its original position. At this time, the first moving drive cylinder 241 drives the second moving slider 244 and the laser print head 23 to move forward, so that the laser print head 23 moves forward to directly below the storage cylinder 21.

[0100] Then, the electric push rod 22 drives the storage cylinder 21 and the laser print head 23 to descend to the designated position, and controls the extension and retraction of the first moving drive cylinder 241 and the second moving drive cylinder 242, so that the powder in the carrier groove 330 is melted by the laser print head 23 for printing.

[0101] When the height of the printed rod is higher than the upper surface of the support part 33, the limit drive cylinder 453 drives the rack 452 to move, thereby driving the gear 451 to rotate. The gear 451 drives the rotating part 454 to rotate through friction. The rotating part 454 drives the lever 456 to move through the first rotating rod 4542, thereby driving the connecting part 455 to rotate, thereby driving the second limit part 43 to rotate.

[0102] Subsequently, the limit drive motor 441 on the side of the shielding box 60 drives the second pulley 443 to rotate. The second pulley 443 drives the first limit body 421 to rotate in the rotation groove of the rotation mating part 412 through the first limit connector 422, thereby closing the second limit body and the first limit body 421 to form a limit space 401, which provides radial limit for the printed rod.

[0103] While gear 451 drives rotating component 454 to rotate through friction, gear 451 also drives crank 51 to rotate downward. Crank 51 drives bearing base 31 to slide downward through bearing drive cylinder 52. Bearing base 31 drives the printed bar material to slide downward.

[0104] When the crank 51 and the load-bearing drive cylinder 52 are rotated to the vertically downward position, the unlocking drive cylinder extends, pushing the locking engagement 532 to slide outward. The locking engagement 532 causes the locking piece 531 to be pulled out of the load-bearing drive plunger 522. The load-bearing drive cylinder 52 extends, causing the load-bearing base 31 to continue sliding downward, so as to achieve the sinking of the rod, thereby increasing the operable space of the 3D printing equipment 100.

[0105] After the bar stock in the carrier 33 is printed, the induction power supply 332 will pass an alternating current into the induction coil 331; then, the induction coil 331 will induction heat the bar stock; after the bar stock between the second limiting body and the first limiting body 421 is printed, the wire in the limiting mounting body 411 will pass an alternating current into the second limiting body and the first limiting body 421, and the second limiting body and the first limiting body 421 will induction heat the bar stock, thereby realizing the annealing function of the bar stock.

[0106] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0107] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A 3D printing device, characterized in that, include: The enclosure is designed to form a sealed, enclosed space. A printing component, disposed in the receiving space, is used to provide powder material and print the powder material into rods; A support component, disposed in the receiving space, is used to support the powder raw material and the printed rod; A limiting component, disposed in the receiving space, is used to form a limiting space above the bearing component to provide radial limiting for the bar; The bearing component and the limiting component are further configured to perform heat treatment on the bar. A load-bearing drive component is disposed on the limiting component, and the load-bearing drive component cooperates with the limiting component to drive the load-bearing component to move up and down.

2. The printing device according to claim 1, characterized in that, The limiting component includes: Limiting mounting components; First limiting component and first limiting drive assembly; Second limiting component and second limiting drive assembly The first limiting member and the second limiting member are rotatably connected to the limiting mounting member, and the first limiting member and the second limiting member are used to form a limiting space for radially limiting the bar. The first limiting member and the second limiting member are also configured to perform heat treatment on the bar. The first limit drive assembly is used to drive the first limit member to rotate relative to the limit mounting member; The second limiting drive assembly is used to drive the second limiting member to rotate relative to the limiting mounting member, and to cooperate with the bearing drive assembly to enable the bearing assembly to rise and fall.

3. The printing device according to claim 2, characterized in that, The first limit drive component includes: Limit drive motor; The first pulley is connected to the limit drive motor so that the limit drive motor drives the first pulley to rotate; The second pulley is connected to the first limiting member; A transmission belt is used, and the second pulley rotates synchronously with the first pulley via the transmission belt, thereby driving the first limiting member to rotate.

4. The printing device according to claim 2, characterized in that, The second limit drive component includes: A gear is rotatably mounted on the limiting mounting member; A rack that meshes with the gear; A limit drive cylinder is disposed on the limit mounting component and is used to drive the rack to move, thereby driving the gear to rotate; A rotating component is rotatably disposed on the limiting mounting component and configured to rotate synchronously driven by the gear; A connector is rotatably disposed on the limiting mounting member and connected to the second limiting member; The lever is connected to the connecting member. When the rotating member rotates, the lever is moved, thereby driving the connecting member and the second limiting member to rotate.

5. The printing device according to claim 4, characterized in that, The first and second limiting members are made of conductive material, and the rod is induction heated by passing an alternating current through the first and second limiting members.

6. The printing device according to claim 4, characterized in that, The load-bearing drive component includes: A crank is rotatably mounted on the limiting mounting member and is configured to rotate to a vertically downward position under the drive of the gear; A load-bearing drive cylinder, one end of which is rotatably connected to the crank and the other end of which is rotatably connected to the load-bearing assembly; A locking assembly is used to lock the load-bearing drive cylinder during crank rotation to prevent the load-bearing drive cylinder from extending. The unlocking component is used to unlock the load-bearing drive cylinder after the crank is rotated to the position, so that the load-bearing drive cylinder can extend to drive the load-bearing assembly to descend.

7. The printing device according to claim 6, characterized in that, The unlocking component is an unlocking drive cylinder; The locking component includes: A locking element is used to engage the load-bearing drive cylinder to prevent the load-bearing drive cylinder from extending; A locking element, wherein the locking element is disposed on the locking element; The unlocking drive cylinder is connected to the locking engagement member and the bearing drive cylinder, and is used to extend the locking member to move away from the bearing drive cylinder, thereby releasing the lock on the bearing drive cylinder; The locking component also includes: A return spring is used to move the locking member toward the bearing drive cylinder when the unlocking drive cylinder is shortened, thereby locking the bearing drive cylinder.

8. The printing device according to claim 6, characterized in that, The carrier component includes: The support base is rotatably connected to the support drive cylinder; A screw is connected to the bearing base. A nut that can rotate relative to the limiting mounting member is provided inside the limiting mounting member so that the screw can be raised or lowered relative to the bearing base by rotating the nut relative to the limiting mounting member. A support portion is disposed on the support base, and the support portion forms a support groove for supporting the powder raw material and the printed rod. An induction coil is installed inside the bearing section for heat treatment of the bar material in the bearing groove.

9. The printing apparatus according to any one of claims 1-8, characterized in that, The printing component includes: Storage cylinder, used to supply powdered raw materials; A material storage lifting drive is used to drive the material storage cylinder to move up and down. A laser printhead is used to melt powdered raw materials using a laser to form the rod. A printhead movement drive is used to drive the laser printhead to translate. Specifically, when the printhead moving drive unit drives the laser printhead to move directly below the storage cylinder, the printhead moving drive unit can move downward together with the laser printhead under the action of the storage lifting drive unit.

10. The printing device according to claim 3, characterized in that, Also includes: A shielding enclosure is disposed inside the enclosure, the limit drive motor and the first pulley are disposed outside the shielding enclosure, and the transmission belt passes through the shielding enclosure and enters its interior; An image acquisition device is disposed between the shielding enclosure and the enclosure, and a shielding glass is provided on the side of the shielding enclosure facing the image acquisition device; A gas storage container is used to supply gas to the cylinder; the gas storage container is disposed between the shielding box and the box. The door of the enclosure is equipped with a shielding plate for use with the shielded enclosure.

Images