Three-dimensional printer convenient to carry
By using a detachable gantry structure and threaded rods and insert rods, the problems of large size and inconvenient disassembly and assembly of 3D printers are solved, thus improving portability and printing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAINAN UNITED UNIVERSITY
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-26
AI Technical Summary
Existing 3D printers are large in size, with parts that are difficult to disassemble and assemble, making them inconvenient to carry and easily damaged by shaking.
It adopts a detachable gantry frame structure, which uses threaded rods, insert rods and snap-fit blocks to facilitate easy disassembly and fixation, reduce the number of parts and avoid damage to components caused by shaking.
It enables convenient disassembly and portability of 3D printers, ensures printing accuracy, protects device safety, reduces the number of parts, and improves portability.
Smart Images
Figure CN224276222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printer technology, and in particular to a portable 3D printer. Background Technology
[0002] 3D printers operate on the principle of thermal fusion deposition, stacking filaments according to a pre-programmed trajectory. With the continuous maturation and popularization of 3D printing technology, the market demand for 3D printers continues to grow. Especially in education, maker spaces, and personalized customization, the application of 3D printers is becoming increasingly widespread, driving market expansion. The application areas of FFF (Fold-Film Folded) 3D printers are constantly expanding. Besides traditional prototyping and model design, 3D printers are also widely used in education, healthcare, aerospace, automotive manufacturing, and many other fields. For example, in education, 3D printers are used to cultivate students' innovative thinking and practical abilities.
[0003] Existing 3D printers are typically large in size, with components that are inconvenient to disassemble and assemble, making them difficult to carry. Furthermore, when taking the printer out, there is a risk of damage from shaking.
[0004] Therefore, it is necessary to propose a portable 3D printer to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a portable 3D printer to solve the problems of large device size, inconvenient disassembly and assembly of its parts, inconvenience in carrying, and the risk of damage to the device when it is shaken while being carried out.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable 3D printer, including a base on which a printing platform is slidably disposed on the top surface of the base, a gantry frame in the middle of the base, threaded holes at the bottom ends of both sides of the gantry frame, two insertion holes on both sides of the outer wall of the gantry frame, the printing platform being located between the inner walls of the gantry frame, a moving rod slidably disposed on the side wall of the gantry frame, and an extruder slidably disposed on the top surface of the moving rod;
[0007] The base is fixedly connected to two fixed blocks on both sides, and a plug rod is slidably arranged on the fixed block. The two plug rods are provided with slots on the side close to each other. A transparent cover is provided on the top surface of the base. Through holes are opened on both sides of the bottom of the transparent cover. The transparent cover is inserted into the slot. The plug rod passes through the corresponding through hole and is inserted into the corresponding plug hole. Threaded rods are provided on both sides of the bottom surface of the base. The threaded rods pass through the base and are threadedly connected to the corresponding threaded holes.
[0008] Preferably, the fixing block has a cylindrical groove inside, and a circular ring is slidably connected inside the cylindrical groove. The circular ring is fixedly sleeved on the outer periphery of the insertion rod. A spring is provided inside the cylindrical groove, and the two ends of the spring are fixedly connected to the side wall of the circular ring and the side wall of the spring, respectively.
[0009] Preferably, a first stepper motor is fixedly connected to one side of the base, a first slide groove is provided in the middle of the base, a first slider is slidably connected inside the first slide groove, the top surface of the first slider is fixedly connected to the bottom surface of the printing platform, a first lead screw is rotatably provided inside the first slide groove, a lead hole is provided on the first slider, the first lead screw is connected to the lead hole, and the end of the first lead screw passes through the base and is fixedly connected to the shaft of the first stepper motor.
[0010] Preferably, two second stepper motors are fixedly connected to the top of the gantry frame on the side away from the moving rod, and a second lead screw is fixedly connected to the shaft of the second stepper motor. Moving frames are slidably arranged on both sides of the gantry frame, and the ends of the moving frames are fixedly connected to the side walls of the moving rod. The moving frames are provided with threaded holes, and the second lead screws are connected to the threaded holes.
[0011] Preferably, the top surface of the moving rod is provided with a second sliding groove, and a second slider is slidably connected inside the second sliding groove. The top surface of the second slider is fixedly connected to the bottom surface of the extruder. A third lead screw is rotatably arranged inside the second sliding groove. A lead hole is provided on the second slider. The third lead screw is engaged with the lead hole. A third stepper motor is fixedly connected to the side wall of the moving rod. A first gear is fixedly connected to the shaft of the third stepper motor. A second gear is fixedly connected to the end of the third lead screw. The first gear and the second gear are meshed together.
[0012] Preferably, snap-fit blocks are fixedly connected to both sides of the top surface of the base, and limit plates are fixedly connected to the other two sides of the top surface of the base. The limit plates are in contact with the outer wall of the transparent cover, and the gantry frame is inserted into the snap-fit blocks.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. In this utility model, when disassembling, simply rotate the threaded rod 33 to remove it, pull out the insert rod 32, and then the portal frame 2 can be removed from the base 1. When installing, simply reverse the operation. The portal frame 2 is easy and quick to assemble and disassemble, and is easy to carry. When the portal frame 2 is in the storage state, the insert rod 32 can also fix the horizontal portal frame 2 through the insertion hole 23, which prevents the portal frame 2 and its upper components from shaking and causing damage to the components when the device is carried, thus protecting the safety of the device.
[0015] 2. In this utility model, the gantry frame 2 can be firmly fixed on the top surface of the base 1 by the cooperation of the threaded rod 33, the insertion rod 32, the snap-fit block 51 and other components, so as to avoid the platform shaking caused by vibration during printing and ensure printing accuracy. The insertion rod 32 not only fixes the gantry frame 2, but also connects the transparent cover 5, avoiding the reuse of parts, reducing the number of parts and improving the portability of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the storage state of this utility model.
[0018] Figure 3 This is a cross-sectional schematic diagram of the present invention.
[0019] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0020] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.
[0021] In the diagram: 1. Base; 11. Printing platform; 12. First slide rail; 13. First lead screw; 14. First slider; 15. First stepper motor;
[0022] 2. Gantry frame; 21. Moving rod; 22. Extruder; 23. Insertion hole; 24. Threaded hole; 25. Second stepper motor; 26. Moving frame; 27. Second lead screw;
[0023] 3. Fixing block; 31. Slot; 32. Insert rod; 33. Threaded rod; 34. Cylindrical groove; 35. Circular ring; 36. Spring;
[0024] 4. Third stepper motor; 41. First gear; 42. Second gear; 43. Second slide rail; 44. Third lead screw; 45. Second slider;
[0025] 5. Transparent cover; 51. Clip-on block; 52. Limiting plate; 53. Through hole. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model, and should not be construed as limiting this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] This utility model provides, for example Figures 1-5 The portable 3D printer shown includes a base 1, a printing platform 11 slidably mounted on the top surface of the base 1, a gantry frame 2 in the middle of the base 1, threaded holes 24 on the bottom ends of both sides of the gantry frame 2, two insertion holes 23 on both sides of the outer wall of the gantry frame 2, the printing platform 11 located between the inner walls of the gantry frame 2, a moving rod 21 slidably mounted on the side wall of the gantry frame 2, and an extruder 22 slidably mounted on the top surface of the moving rod 21. When the device is printing, the moving rod 21 is moved, which drives the extruder 22 on it to move. When the extruder 22 moves to the closed position, the printing work begins. During printing, the extruder 22 moves on the moving rod 21, and at the same time, the printing platform 11 on the bottom surface moves in coordination with the extruder 22 on the top surface of the base 1.
[0028] Furthermore, fixing blocks 3 are fixedly connected to both sides of the base 1, and insert rods 32 are slidably mounted on the fixing blocks 3. Slots 31 are opened on the side of the two insert rods 32 that are close to each other. A transparent cover 5 is provided on the top surface of the base 1. Through holes 53 are opened on both sides of the bottom of the transparent cover 5. The transparent cover 5 is inserted into the slots 31. The insert rods 32 pass through the corresponding through holes 53 and are inserted into the corresponding insertion holes 23. Threaded rods 33 are provided on both sides of the bottom surface of the base 1. The threaded rods 33 pass through the base 1 and are threadedly connected to the corresponding threaded holes 24. When disassembling or assembling the device, rotate the threaded rods 33. After the threaded rods 33 leave the threaded holes 24, pull the insert rods 32 outward. After the insert rods 32 leave the insertion holes 23 and move away from the through holes 53, the transparent cover 5 can be removed. At the same time, the gantry frame 2 can also be removed.
[0029] It should be noted that after removing the gantry frame 2, pull the insert rod 32 outwards, and then place the gantry frame 2 horizontally, as shown. Figure 2 As shown, loosen the insertion rod 32, insert the insertion rod 32 into the middle insertion hole 23, and limit and fix the horizontal gantry frame 2.
[0030] It should also be noted that the transparent cover 5 is provided with heat dissipation holes. Heat dissipation holes are a mature technology in the prior art, which is not shown in the figure and will not be described in detail here.
[0031] In this utility model, when disassembling, simply rotate the threaded rod 33 to remove it, pull out the insert rod 32, and then the portal frame 2 can be removed from the base 1. When installing, simply reverse the operation. The portal frame 2 is easy and quick to assemble and disassemble, and is easy to carry. When the portal frame 2 is in the storage state, the insert rod 32 can also fix the horizontal portal frame 2 through the insertion hole 23, which can prevent the portal frame 2 and its upper components from shaking and causing damage to the components when the device is carried, thus protecting the safety of the device.
[0032] In this invention, a cylindrical groove 34 is provided inside the fixing block 3, and a circular ring 35 is slidably connected inside the cylindrical groove 34. The circular ring 35 is fixedly sleeved on the outer periphery of the insertion rod 32. A spring 36 is provided inside the cylindrical groove 34, and the two ends of the spring 36 are fixedly connected to the side wall of the circular ring 35 and the side wall of the spring 36, respectively. When the insertion rod 32 is pulled, the insertion rod 32 moves, which drives the circular ring 35 to move. The circular ring 35 moves in the cylindrical groove 34. The cooperation between the circular ring 35 and the cylindrical groove 34 compresses the spring 36. When the insertion rod 32 is released, the spring 36 uses its elasticity to restore the circular ring 35 to its original position, and the insertion rod 32 also returns to its original position, thereby completing the subsequent snap-fit operation.
[0033] In this invention, a first stepper motor 15 is fixedly connected to one side of the base 1. A first slide groove 12 is provided in the middle of the base 1. A first slider 14 is slidably connected inside the first slide groove 12. The top surface of the first slider 14 is fixedly connected to the bottom surface of the printing platform 11. A first lead screw 13 is rotatably arranged inside the first slide groove 12. A lead hole is provided on the first slider 14. The first lead screw 13 is connected to the lead hole. The end of the first lead screw 13 passes through the base 1 and is fixedly connected to the shaft of the first stepper motor 15. When it is necessary to move the printing platform 11, the first stepper motor 15 is turned on. The first stepper motor 15 drives the first lead screw 13 to rotate. The rotation of the first lead screw 13 drives the first slider 14 to move in the first slide groove 12. The movement of the first slide groove 12 drives the printing platform 11 to move.
[0034] It should be noted that two second stepper motors 25 are fixedly connected to the top of the side of the portal frame 2 away from the moving rod 21. A second lead screw 27 is fixedly connected to the shaft of the second stepper motor 25. A moving frame 26 is slidably arranged on both sides of the portal frame 2. The end of the moving frame 26 is fixedly connected to the side wall of the moving rod 21. The moving frame 26 is provided with a threaded hole, and the second lead screw 27 is connected to the threaded hole. When the moving rod 21 needs to be moved, the second stepper motor 25 is turned on. The second stepper motor 25 drives the second lead screw 27 to rotate. The second lead screw 27 drives the moving frame 26 to move up and down on both sides of the portal frame 2. The movement of the moving frame 26 causes the moving rod 21 to move.
[0035] It should also be noted that the top surface of the moving rod 21 is provided with a second slide groove 43, and a second slider 45 is slidably connected inside the second slide groove 43. The top surface of the second slider 45 is fixedly connected to the bottom surface of the extruder 22. A third lead screw 44 is rotatably installed inside the second slide groove 43. A lead screw hole is provided on the second slider 45, and the third lead screw 44 is connected to the lead screw hole. A third stepper motor 4 is fixedly connected to the side wall of the moving rod 21. A first gear 41 is fixedly connected to the shaft of the third stepper motor 4, and a second gear 42 is fixedly connected to the end of the third lead screw 44. The first gear 41 and the second gear 42 are meshed together. When the extruder 22 needs to be adjusted, the third stepper motor 4 is turned on. The third stepper motor 4 drives the first gear 41 to rotate. The rotation of the first gear 41 drives the second gear 42 to rotate. The rotation of the second gear 42 drives the third lead screw 44 to rotate. The rotation of the third lead screw 44 drives the second slider 45 to move in the second slide groove 43. The movement of the second slider 45 drives the extruder 22 to move.
[0036] In this utility model, the gantry frame 2 can be firmly fixed to the top surface of the base 1 by the cooperation of the threaded rod 33, the insertion rod 32, the snap-fit block 51 and other components, so as to avoid the platform shaking caused by vibration during printing and ensure printing accuracy. The insertion rod 32 not only fixes the gantry frame 2, but also connects the transparent cover 5, avoiding the reuse of parts, reducing the number of parts and improving the portability of the device.
[0037] In this utility model, the top surface of the base 1 is fixedly connected to two sides of the snap-fit blocks 51, and the other two sides of the top surface of the base 1 are fixedly connected to the limiting plates 52. The limiting plates 52 are in contact with the outer wall of the transparent cover 5, and the gantry frame 2 is inserted into the snap-fit blocks 51. The snap-fit blocks 51 can position the gantry frame 2 in the use state. In the storage state, the snap-fit blocks 51 can support the second lead screw 27, and the limiting plates 52 limit the transparent cover 5.
Claims
1. A portable three-dimensional printer comprising a base (1), characterized in that: A printing platform (11) is slidably mounted on the top surface of the base (1). A portal frame (2) is mounted in the middle of the base (1). Threaded holes (24) are opened at the bottom ends of both sides of the portal frame (2). Two insertion holes (23) are opened on both sides of the outer wall of the portal frame (2). The printing platform (11) is located between the inner walls of the portal frame (2). A moving rod (21) is slidably mounted on the side wall of the portal frame (2). An extruder (22) is slidably mounted on the top surface of the moving rod (21). The base (1) is fixedly connected to two fixed blocks (3) on both sides. A plug rod (32) is slidably arranged on the fixed block (3). The two plug rods (32) are provided with slots (31) on one side close to each other. A transparent cover (5) is provided on the top surface of the base (1). Through holes (53) are provided on the bottom of both sides of the transparent cover (5). The transparent cover (5) is inserted into the slot (31). The plug rod (32) passes through the corresponding through hole (53) and is inserted into the corresponding plug hole (23). Threaded rods (33) are provided on both sides of the bottom surface of the base (1). The threaded rods (33) pass through the base (1) and are threadedly connected to the corresponding threaded holes (24).
2. The portable three-dimensional printer of claim 1, wherein: The fixing block (3) has a cylindrical groove (34) inside, and a circular ring (35) is slidably connected inside the cylindrical groove (34). The circular ring (35) is fixedly sleeved on the outer circumference of the insert rod (32). A spring (36) is provided inside the cylindrical groove (34). The two ends of the spring (36) are fixedly connected to the side wall of the circular ring (35) and the side wall of the spring (36) respectively.
3. The portable three-dimensional printer of claim 1, wherein: A first stepper motor (15) is fixedly connected to one side of the base (1). A first slide groove (12) is provided in the middle of the base (1). A first slider (14) is slidably connected inside the first slide groove (12). The top surface of the first slider (14) is fixedly connected to the bottom surface of the printing platform (11). A first lead screw (13) is rotatably provided inside the first slide groove (12). A lead hole is provided on the first slider (14). The first lead screw (13) is connected to the lead hole. The end of the first lead screw (13) passes through the base (1) and is fixedly connected to the shaft of the first stepper motor (15).
4. A portable 3D printer according to claim 1, characterized in that: Two second stepper motors (25) are fixedly connected to the top of the side of the gantry frame (2) away from the moving rod (21). A second lead screw (27) is fixedly connected to the shaft of the second stepper motor (25). A moving frame (26) is slidably arranged on both sides of the gantry frame (2). The end of the moving frame (26) is fixedly connected to the side wall of the moving rod (21). A threaded hole is provided on the moving frame (26), and the second lead screw (27) is connected to the threaded hole.
5. A portable 3D printer according to claim 1, characterized in that: The top surface of the moving rod (21) is provided with a second slide groove (43), and a second slider (45) is slidably connected inside the second slide groove (43). The top surface of the second slider (45) is fixedly connected to the bottom surface of the extruder (22). A third lead screw (44) is rotatably arranged inside the second slide groove (43). A wire hole is provided on the second slider (45). The third lead screw (44) is connected to the wire hole. A third stepper motor (4) is fixedly connected to the side wall of the moving rod (21). A first gear (41) is fixedly connected to the shaft of the third stepper motor (4). A second gear (42) is fixedly connected to the end of the third lead screw (44). The first gear (41) and the second gear (42) are meshed together.
6. A portable 3D printer according to claim 1, characterized in that: The base (1) has two fixedly connected snap-fit blocks (51) on both sides of its top surface, and two fixedly connected limit plates (52) on the other two sides of its top surface. The limit plates (52) are in contact with the outer wall of the transparent cover (5), and the gantry frame (2) is inserted into the snap-fit blocks (51).