High speed 3d printing device for prosthetic and orthotic manufacturing

Abstract

The utility model belongs to 3D printing technical field especially is high -speed 3D printing device of fused deposition technology of artificial limb orthosis manufacturing, in view of the existing existing 3D printing equipment exists big, high noise, Z axis rigid motion mechanism is easy to cause the influence to the quality of printing product etc. problem, present and propose the following scheme, including the box, the bottom fixed mounting of box has the base, the inside of base is used for the placement of multiple electrical parts, the side hinged of box has the movable door, the bottom inner wall fixed mounting of box has the printing platform, in the utility model, this artificial limb orthosis manufacturing high -speed 3D printing device, through the compact design of bottom integrated electrical bin effectively reduced the volume of equipment, through adopting the movement part lifting frame structure and four axle belt -guide rail cooperative drive system, combine spatial flexible constraint network, can improve Z axis positioning accuracy, effectively eliminate big height model layer grain defect, ensure the printing quality of product good.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a high-speed 3D printing device using fused deposition modeling for the manufacture of prosthetics and orthotics. Background Technology

[0002] In the field of prosthetic and orthotic manufacturing, 3D printing technology has been widely used due to its ability to quickly and accurately manufacture personalized products. However, existing 3D printing equipment still has many shortcomings in meeting the needs of prosthetic and orthotic manufacturing.

[0003] On the one hand, for 3D printing equipment with large forming size, its external dimensions (length and width) are generally large, usually exceeding 1m*1m. This not only results in a large equipment footprint, but also generates a lot of noise during operation, making it difficult to meet the requirements of office environment for equipment size and noise.

[0004] On the other hand, regarding the motion control of the print head, most existing 3D printing equipment uses a lifting and lowering mechanism for the printing platform, controlled by ball screws. As the size and weight of the printed parts increase, the forces on the platform and the ball screws supporting it gradually increase, easily leading to platform instability. This can cause noticeable layer patterns or even misalignment in the Z-axis of the printed parts, severely affecting print quality. Although a very small number of existing 3D printing devices use a fixed printing platform, the moving parts still use ball screws to control lifting and lowering. This design results in high rigidity along the Z-axis, which also easily leads to noticeable layer patterns or misalignment. Furthermore, some devices lack effective vibration absorption mechanisms during movement, further exacerbating layer patterns and misalignment.

[0005] To address the aforementioned issues, this utility model document proposes a high-speed 3D printing device using fused deposition modeling technology for the manufacture of prosthetic orthotics. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing 3D printing equipment, such as large size, high noise, and the rigid Z-axis motion mechanism that can easily affect the quality of printed products. The invention proposes a high-speed 3D printing device using fused deposition modeling technology for the manufacture of prosthetics and orthotics.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-speed 3D printing device using fused deposition modeling (FDM) technology for manufacturing prosthetics and orthotics includes:

[0009] The enclosure has a base fixedly installed at its bottom, the interior of which is used to house electrical components. A hinged door is connected to one side of the enclosure, and a printing platform is fixedly installed on the bottom inner wall of the enclosure.

[0010] A lifting and moving part is disposed inside the box;

[0011] A horizontally sliding part is horizontally slidably disposed within the lifting and lowering moving part;

[0012] The printhead is horizontally slidably disposed on one side of the horizontally moving part;

[0013] Four lifting drive mechanisms are respectively located at the four corners of the box. Each lifting drive mechanism includes a drive unit and a synchronous belt drive assembly. The synchronous belt drive assembly is connected to the lifting moving part to drive the lifting moving part to move along the vertical direction of the box.

[0014] The combined motion of the lifting and horizontal moving parts causes the print head to form a three-dimensional motion trajectory. The molten material of the print head is extruded and deposited on the printing platform. The synchronous belt drive assembly and the linear guide rail cooperate to form a flexible support to absorb vibration and maintain positioning accuracy.

[0015] In one possible design, a support frame is fixedly installed inside the housing, and a first slide rail is installed on each of the four vertical support columns of the support frame; the lifting and moving part includes two first support rods and a second support rod, the two ends of the two first support rods are slidably connected to the first slide rails via first sliders, and the two ends of the second support rods are connected to the first support rods via a sixth bracket; the horizontal moving part includes a third support rod, the two ends of the third support rod are slidably connected to the second slide rail at the bottom of the first support rod via second sliders, a third slide rail is fixedly installed on one side of the third support rod, and the print head is slidably connected to the third slide rail via a slider.

[0016] In one possible design, the driving part of the lifting drive mechanism includes a first motor, a driving pulley, and a driven pulley. The output shaft of the first motor is fixedly connected to the driving pulley, and the driving pulley is connected to the driven pulley via a belt. The synchronous belt drive assembly includes a second synchronous pulley, a first synchronous pulley, and a first synchronous belt. The second synchronous pulley is coaxially fixed with the driven pulley, and the first synchronous belt is wound between the second synchronous pulley and the first synchronous pulley, and is fixedly connected to the fourth and sixth supports of the lifting moving part.

[0017] In one possible design, the horizontal moving part further includes two second motors, which are respectively mounted on the bottom of the two sixth brackets. A third synchronous pulley is fixed to one end of the output shaft of each of the two second motors. Both third synchronous pulleys are located inside the corresponding sixth bracket, and multiple second rollers are rotatably mounted inside each of the two sixth brackets. A fifth bracket is fixedly mounted on one side of each of the two fourth brackets that are close to each other. A first roller is rotatably mounted inside each of the two fifth brackets. Seventh brackets are provided at both ends of the third support rod. Fourth synchronous pulleys and third rollers are rotatably mounted inside the seventh brackets. The two third synchronous pulleys are connected to the corresponding fourth synchronous pulleys and third rollers via a second synchronous belt and a third synchronous belt, respectively. The second synchronous belt is fixedly connected to the print head, and the third synchronous belt is fixedly connected to the third support rod.

[0018] In one possible design, a first flexible rod connects the second support rod to the bottom of the housing, a second flexible rod connects the third support rod to the first support rod, and a third flexible rod connects the print head to the third support rod; the first flexible rod, the second flexible rod, and the third flexible rod form a spatial flexible constraint network.

[0019] In one possible design, the base has multiple perforated holes on all four sides, and multiple cooling fans are installed on one side of the base, forming a forced convection cooling channel with the perforated holes.

[0020] In one possible design, the outer wall of the enclosure is made of sound-insulating material, and the cooling fan is an adjustable-speed silent fan.

[0021] In this application, during use, the operator first opens the cabinet through the hinged movable door and loads the printing material into the printhead feeding system; after closing the cabinet, the cooling fan group inside the base starts, and forced convection is formed through the matrix-style hollow holes on the side of the base, which effectively reduces the working temperature of the internal electrical components.

[0022] During operation, the lifting and lowering process is coordinated by lifting and lowering drive mechanisms located at the four corners. The first motor of each drive mechanism drives the driven pulley to rotate via the driving pulley, which in turn generates torque through the second synchronous pulley. This torque is transmitted via the first synchronous belt to the first synchronous pulley at the top of the support frame, forming a closed-loop transmission system. The first synchronous belt is rigidly connected to the fourth and sixth supports of the lifting and lowering section, enabling synchronized lifting and lowering movements. The four drive mechanisms, guided by the first slider along the first slide rail, ensure that the lifting and lowering section maintains vertical movement accuracy within the housing.

[0023] The horizontal moving part achieves two-dimensional planar motion through two independent drive systems. When the second motor on the left starts, its cooperating third synchronous pulley drives the second synchronous belt to move along the transmission path formed by the second, first, fourth, and third rollers at the same height, which can drive the print head to translate along the third slide rail in the X-axis direction. The second motor on the right drives the third synchronous belt transmission system through the corresponding third synchronous pulley, which can make the third support rod move along the second slide rail in the Y-axis direction. The two motion systems maintain stable synchronous belt tension through the roller assemblies in the two seventh supports, which can ensure good transmission accuracy.

[0024] During printing, the combined motion of the lifting and horizontal moving parts creates a three-dimensional motion trajectory for the print head. Molten material is extruded through the print head extrusion mechanism and precisely deposited on the printing platform. Three sets of flexible support systems work together using corresponding flexible rods to form a spatial flexible constraint network. By employing floating flexible connections, vibration energy during movement is effectively absorbed, maintaining the positioning accuracy of the end effector and thus effectively avoiding obvious layering and misalignment in large-height models.

[0025] After the printing job is completed, the lifting drive mechanism resets the lifting and moving part to the initial height, and the operator can open the movable door to pick up and put in the finished product; the whole process realizes intelligent matching of motion parameters and process parameters through the integrated control system, which can meet the dual requirements of high-speed forming and precision machining in the manufacturing of prostheses and orthotics.

[0026] Beneficial effects: In this utility model, the high-speed 3D printing device for manufacturing prosthetics and orthotics using fused deposition modeling technology adopts a compact design, placing multiple electrical components inside the base, effectively reducing the overall size of the device; at the same time, by using a silent fan with adjustable speed via software and sealing it with sheet metal of a specific thickness, the noise during equipment operation is reduced; this allows the device to meet the requirements of office environments for equipment size and noise reduction, thus broadening the application scenarios of 3D printing technology.

[0027] In this invention, the high-speed 3D printing device for manufacturing prosthetic orthotics using fused deposition modeling technology ensures that the Z-axis force remains constant by fixing the printing platform to the bottom of the equipment and using a lifting mechanism for the moving parts. This design avoids platform instability caused by increased volume and weight of the printed parts, thus ensuring surface consistency of large-scale models. Furthermore, the lifting mechanism is controlled by a belt and linear guide rail, and flexible rods provide flexible support for the movement of multiple moving parts, forming a spatial flexible constraint network. This design effectively absorbs vibration energy during movement, maintains the positioning accuracy of the end effector, further avoids obvious layer patterns and misalignment, and significantly improves printing quality.

[0028] In this invention, the high-speed 3D printing device for manufacturing prosthetics and orthotics using fused deposition modeling technology achieves high-speed and precise movement of the print head through optimized structural design and motion control. This allows the device to significantly shorten the manufacturing cycle of prosthetics and orthotics while ensuring print quality. Compared with traditional 3D printing equipment, the time required to print prosthetics and orthotics using this device is greatly reduced, improving production efficiency and meeting the needs of rapid prototyping manufacturing of prosthetics and orthotics.

[0029] In this invention, the high-speed 3D printing device for manufacturing prosthetic orthotics using fused deposition modeling technology improves the stability and reliability of the device through optimized structural design and motion control methods; the device can operate 24 / 7 to meet the needs of large-scale production; at the same time, the integrated control system enables intelligent matching of motion parameters and process parameters, further improving the operating accuracy and stability of the device.

[0030] In this invention, a high-speed 3D printing device for manufacturing prosthetics and orthotics is presented. Through a compact design integrating an electrical compartment at the bottom, the device's volume is reduced to 650×650×1100mm. Combined with a silent fan and soundproofing panels, it achieves office-grade low-noise operation. By employing a lifting structure for the moving parts and a four-axis belt-rail coordinated drive system, along with a flexible spatial constraint network, the Z-axis positioning accuracy is improved, effectively eliminating layer defects in tall models. Through independent dual-motor drive and three-dimensional motion decoupling control, the X / Y / Z-axis linkage speed of the print head is increased by more than three times, shortening the manufacturing cycle of a single orthotome to 16-22 hours. The integrated intelligent control system supports 24 / 7 continuous operation. Combined with adaptive matching technology for process parameters, it improves the overall efficiency of the equipment by more than 50% while ensuring medical-grade surface quality, significantly lowering the barrier to entry for digital orthotics manufacturing. Attached Figure Description

[0031] Figure 1 A three-dimensional structural schematic diagram of the high-speed 3D printing device for manufacturing prostheses and orthotics using fused deposition modeling technology proposed in this utility model.

[0032] Figure 2 A schematic diagram of the internal structure of the high-speed 3D printing device using fused deposition modeling for manufacturing prosthetics and orthotics proposed in this utility model.

[0033] Figure 3 A schematic diagram of the lifting drive mechanism, lifting moving part and horizontal moving part of the high-speed 3D printing device for manufacturing prostheses and orthoses using fused deposition modeling technology proposed in this utility model.

[0034] Figure 4 A schematic diagram of the disassembled structure of the lifting drive mechanism of the high-speed 3D printing device for manufacturing prostheses and orthoses using fused deposition modeling technology proposed in this utility model.

[0035] Figure 5 A schematic diagram of the lifting and moving part of the high-speed 3D printing device for manufacturing prostheses and orthoses using fused deposition modeling technology proposed in this utility model.

[0036] Figure 6 A schematic diagram of the horizontal moving part of the high-speed 3D printing device for manufacturing prostheses and orthotics using fused deposition modeling technology proposed in this utility model.

[0037] In the diagram: 1. Housing; 2. Movable door; 3. Base; 4. Printing platform; 5. Support frame; 6. First slide rail; 7. Lifting drive mechanism; 8. Lifting moving part; 9. Horizontal moving part; 10. Print head; 11. First bracket; 12. First synchronous pulley; 13. First synchronous belt; 14. Second bracket; 15. Third bracket; 16. First motor; 17. Drive pulley; 18. Driven pulley; 19. Second synchronous pulley; 20. First support rod; 21. Second support rod; 22. First flexible rod; 23. Second slide rail; 24. First slider; 25. Fourth bracket; 26. Fifth bracket; 27. First roller; 28. Sixth bracket; 29. ​​Second motor; 30. Third synchronous pulley; 31. Second roller; 32. Third support rod; 33. Third slide rail; 34. Seventh bracket; 35. Second slider; 36. Fourth synchronous pulley; 37. Third roller; 38. Second synchronous belt; 39. Third synchronous belt; 40. Second flexible rod; 41. Third flexible rod. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Example 1: Refer to Figure 1-6 A 3D printing device includes: a housing 1, a printing platform 4, a lifting and moving part 8, a horizontal moving part 9, a print head 10, a lifting drive mechanism 7, and related auxiliary components.

[0040] In this embodiment, the housing 1 has a rectangular parallelepiped structure, with a base 3 fixedly installed at its bottom. The base 3 houses multiple electrical components, such as power modules and control circuit boards. A hinged door 2 is connected to one side of the housing 1, allowing operators to access the equipment's interior, such as loading printing materials and retrieving printed products. A printing platform 4 is fixedly installed on the bottom inner wall of the housing 1. The flat surface of the printing platform 4 is used to place and support the printed parts. During printing, the printing material is precisely deposited on the printing platform 4 to form the desired prosthetic orthopedic model.

[0041] In this embodiment, the lifting and moving part 8 is disposed inside the housing 1 and cooperates with four lifting drive mechanisms 7 located at the corners to realize the lifting and moving of the print head 10. Specifically, a support frame 5 is fixedly disposed inside the housing 1, and a first slide rail 6 is fixedly installed on one side of each of the four vertical support columns of the support frame 5, with the four first slide rails 6 corresponding to each other in pairs. The lifting and moving part 8 consists of two first support rods 20 and one second support rod 21. A sixth bracket 28 is fixedly installed at both ends of the second support rod 21, and is fixedly connected to one end of the two first support rods 20 through the sixth bracket 28. A first slider 24 is provided at both ends of the two first support rods 20. The first slider 24 is fixedly connected to the bottom of the corresponding first support rod 20, and the first slider 24 is slidably connected to the corresponding first slide rail 6, so that the lifting and moving part 8 can move vertically along the first slide rail 6. A second slide rail 23 is also fixedly installed at the bottom of each of the two first support rods 20.

[0042] Furthermore, in this embodiment, the horizontal moving part 9 includes a third support rod 32, which is located between the two first support rods 20. A second slider 35 is provided at both ends of the third support rod 32. The second slider 35 is fixedly connected to the bottom of the third support rod 32 and slidably connected to a corresponding second slide rail 23, thereby enabling the horizontal moving part 9 to move horizontally along the second slide rail 23. A third slide rail 33 is fixedly installed on one side of the third support rod 32, and a corresponding slider is provided on one side of the print head 10. The print head 10 is slidably connected to the third slide rail 33 via this slider, enabling further horizontal movement of the print head 10.

[0043] In this embodiment, the lifting drive mechanism 7 is a key component for realizing the lifting movement of the lifting moving part 8. Each lifting drive mechanism 7 includes a drive unit disposed within the base 3, which mainly consists of a second bracket 14, a third bracket 15, and a first motor 16. The second bracket 14 is fixedly connected to the bottom inner wall of the base 3, the third bracket 15 is fixedly installed on one side of the second bracket 14, and the first motor 16 is fixedly installed on one side of the third bracket 15. One end of the output shaft of the first motor 16 is fixedly connected to a drive pulley 17, and a driven pulley 18 is rotatably installed inside the second bracket 14. The drive pulley 17 and the driven pulley 18 are connected by a belt drive. A second synchronous pulley 19 is fixedly installed on one side of the driven pulley 18. A first bracket 11 is fixedly installed on one side of the top crossbar of the support frame 5, and a first synchronous pulley 12 is rotatably installed inside the first bracket 11. The second synchronous pulley 19 and the first synchronous pulley 12 are connected by the same first synchronous belt 13, which slides through the bottom of the housing 1. A fourth bracket 25 is fixedly installed at one end of each of the two first support rods 20. The first synchronous belt 13 is fixedly connected to the adjacent fourth bracket 25 and sixth bracket 28. When the first motor 16 starts, the driving pulley 17 drives the driven pulley 18 to rotate, which in turn causes the second synchronous pulley 19 to generate torque. This torque is transmitted to the first synchronous pulley 12 via the first synchronous belt 13, forming a closed-loop transmission system, thereby driving the lifting and moving part 8 to adjust its height along the first slide rail 6.

[0044] In this embodiment, to achieve horizontal drive of the print head 10 and the horizontal moving part 9, a second motor 29 is fixedly installed at the bottom of each of the two sixth supports 28. One end of the output shaft of each of the two second motors 29 rotatably passes through the bottom of the corresponding sixth support 28 and is fixedly installed with a third synchronous wheel 30. Both third synchronous wheels 30 are located inside the corresponding sixth support 28. Multiple second rollers 31 are rotatably arranged inside each of the two sixth supports 28. A fifth support 26 is fixedly installed on one side of each of the two fourth supports 25. A first roller 27 is rotatably installed inside each of the two fifth supports 26. Seventh supports 34 are fixedly installed at both ends of the third support rod 32. A fourth synchronous wheel 36 and a third roller 37 are rotatably installed at the bottom of each of the two seventh supports 34. Adjacent fourth synchronous wheels 36 and third rollers 37 are staggered and are at the same height as the third roller 37 and fourth synchronous wheel 36 at the other end of the third support rod 32, respectively. The outer walls of the two third synchronous pulleys 30 are respectively connected to the second synchronous belt 38 and the third synchronous belt 39. The second synchronous belt 38 and the third synchronous belt 39 are respectively connected to the corresponding second roller 31, first roller 27, fourth synchronous pulley 36 and third roller 37 at the same height. One end of the second synchronous belt 38 is fixedly inserted through one side of the print head 10, and one end of the third synchronous belt 39 slides through one side of the print head 10. One end of the third support rod 32 is fixedly connected to the outer wall of the third synchronous belt 39. When the left second motor 29 starts, the third synchronous pulley 30 that cooperates with it drives the second synchronous belt 38 to move along the transmission path formed by the second roller 31, first roller 27, fourth synchronous pulley 36 and third roller 37, causing the print head 10 to translate along the third slide rail 33 in the X-axis direction. When the right second motor 29 starts, the third synchronous belt 39 is driven by the corresponding third synchronous pulley 30 to achieve Y-axis displacement along the second slide rail 23.

[0045] This application can be used in the field of 3D printing technology, or in other fields applicable to this application.

[0046] Example 2: Reference Figure 2 , 5 6. Improvement based on Example 1: High-speed 3D printing device for fused deposition modeling technology for manufacturing prosthetics and orthotics, which is applied to the field of 3D printing technology;

[0047] In this embodiment, to ensure the stability of multiple moving parts during movement, a first flexible rod 22 is fixedly installed on one side of the second support rod 21, and the other end of the first flexible rod 22 is bent and fixedly connected to the bottom inner wall of the housing 1; a second flexible rod 40 is fixedly installed on one end of the third support rod 32, and the other end of the second flexible rod 40 is bent and fixedly connected to the top of the adjacent first support rod 20; a third flexible rod 41 is fixedly installed on one side of the print head 10, and the other end of the third flexible rod 41 is bent and fixedly connected to the top of the third support rod 32. These three sets of flexible support systems work together using corresponding flexible rods to form a spatial flexible constraint network. By using floating flexible connections, vibration energy during movement is effectively absorbed, maintaining the positioning accuracy of the end effector (i.e., the print head 10), thereby effectively avoiding obvious layering and misalignment in large-height models.

[0048] In this embodiment, multiple perforated holes are provided on all four sides of the base 3. These holes are arranged in a matrix to facilitate air circulation. At the same time, multiple cooling fans are fixedly embedded on one side of the base 3. When the device is started, the cooling fan group starts to work, forming forced convection through the perforated holes on the side of the base 3 to effectively dissipate the heat generated by the electrical components, ensuring that the electrical components operate in a suitable temperature environment.

[0049] However, as is well known to those skilled in the art, the working principles and wiring methods of the printhead 10, the first motor 16, and the second motor 29 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0050] The working principle and usage process of this technical solution are as follows:

[0051] In use, the operator first opens the housing 1 through the hinged movable door 2 and loads the printing material into the printing head 10 feeding system; after closing the housing 1, the cooling fan group inside the base 3 starts, and forced convection is formed through the matrix-style hollow holes on the side of the base 3, which effectively reduces the working temperature of the internal electrical components.

[0052] During operation, the lifting drive process is completed collaboratively by the lifting drive mechanisms 7 located at the four corners. The first motor 16 of each drive mechanism drives the driven pulley 18 to rotate via the driving pulley 17, which in turn generates torque via the second synchronous pulley 19. This torque is transmitted via the first synchronous belt 13 to the first synchronous pulley 12 at the top of the support frame 5, forming a closed-loop transmission system. The first synchronous belt 13 is rigidly connected to the fourth bracket 25 and the sixth bracket 28 of the lifting moving part 8, enabling synchronous lifting actions. The four drive mechanisms, guided by the first slider 24 along the first slide rail 6, ensure that the lifting moving part 8 maintains vertical movement accuracy within the housing 1.

[0053] The horizontal moving part 9 achieves two-dimensional planar motion through two sets of independent drive systems. When the left second motor 29 starts, its cooperating third synchronous pulley 30 drives the second synchronous belt 38 to move along the transmission path formed by the second roller 31, the first roller 27, the fourth synchronous pulley 36, and the third roller 37 at the same height, which can drive the print head 10 to translate along the third slide rail 33 in the X-axis direction. The right second motor 29 drives the third synchronous belt 39 transmission system through the corresponding third synchronous pulley 30, which can make the third support rod 32 move along the second slide rail 23 in the Y-axis direction. The two sets of motion systems maintain stable synchronous belt tension through the roller assemblies in the two seventh supports 34, which can ensure good transmission accuracy.

[0054] During printing, the combined motion of the lifting and lowering moving part 8 and the horizontal moving part 9 causes the print head 10 to form a three-dimensional motion trajectory. Molten material is extruded through the extrusion mechanism of the print head 10 and precisely deposited on the printing platform 4. The three sets of flexible support systems work together using corresponding flexible rods to form a spatial flexible constraint network. By using floating flexible connections, vibration energy during the movement is effectively absorbed, maintaining the positioning accuracy of the end effector, thereby effectively avoiding obvious layering and misalignment in large-height models.

[0055] After the printing operation is completed, the lifting drive mechanism 7 resets the lifting moving part 8 to the initial height, and the operator can open the movable door 2 to pick up and put in the finished product. The whole process realizes intelligent matching of motion parameters and process parameters through the integrated control system, which can meet the dual requirements of high-speed forming and precision machining in the manufacturing of prostheses and orthotics.

[0056] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-speed 3D printing device for manufacturing prosthetic orthotics using fused deposition modeling, characterized in that, include: Box (1), the bottom of the box (1) is fixedly installed with a base (3), the interior of the base (3) is used to place electrical components, a movable door (2) is hinged to one side of the box (1), and a printing platform (4) is fixedly installed on the bottom inner wall of the box (1). A lifting and moving part (8) is disposed inside the housing (1); The horizontal moving part (9) is horizontally slidably disposed within the lifting moving part (8); The print head (10) is horizontally slidably disposed on one side of the horizontal moving part (9); Four lifting drive mechanisms (7) are respectively set at the four corners of the box (1). Each lifting drive mechanism (7) includes a drive unit and a synchronous belt drive assembly. The synchronous belt drive assembly is connected to the lifting moving part (8) to drive the lifting moving part (8) to move along the vertical direction of the box (1). The combined motion of the lifting moving part (8) and the horizontal moving part (9) causes the print head (10) to form a three-dimensional motion trajectory. The molten material of the print head (10) is extruded and deposited on the printing platform (4). The synchronous belt drive assembly and the linear guide rail cooperate to form a flexible support to absorb vibration and maintain positioning accuracy.

2. The high-speed 3D printing device for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 1, characterized in that, The housing (1) is fixedly provided with a support frame (5), and the four vertical support columns of the support frame (5) are all equipped with first slide rails (6); the lifting and moving part (8) includes two first support rods (20) and a second support rod (21). The two ends of the two first support rods (20) are slidably connected to the first slide rails (6) through first sliders (24), and the two ends of the second support rods (21) are connected to the first support rods (20) through a sixth bracket (28); the horizontal moving part (9) includes a third support rod (32). The two ends of the third support rod (32) are slidably connected to the second slide rail (23) at the bottom of the first support rod (20) through second sliders (35), and a third slide rail (33) is fixedly installed on one side of the third support rod (32). The print head (10) is slidably connected to the third slide rail (33) through a slider.

3. The high-speed 3D printing device for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 2, characterized in that, The driving part of the lifting drive mechanism (7) includes a first motor (16), a driving pulley (17) and a driven pulley (18). The output shaft of the first motor (16) is fixedly connected to the driving pulley (17). The driving pulley (17) is connected to the driven pulley (18) via a belt. The synchronous belt drive assembly includes a second synchronous pulley (19), a first synchronous pulley (12) and a first synchronous belt (13). The second synchronous pulley (19) is coaxially fixed with the driven pulley (18). The first synchronous belt (13) is wound between the second synchronous pulley (19) and the first synchronous pulley (12) and is fixedly connected to the fourth bracket (25) and the sixth bracket (28) of the lifting moving part (8).

4. The high-speed 3D printing apparatus for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 3, characterized in that, The horizontal moving part (9) also includes two second motors (29), which are respectively installed at the bottom of the two sixth brackets (28). One end of the output shaft of each of the two second motors (29) is fixed with a third synchronous pulley (30). The two third synchronous pulleys (30) are located inside the corresponding sixth bracket (28). Multiple second rollers (31) are rotatably installed inside the two sixth brackets (28). A fifth bracket (26) is fixedly installed on the side of each of the two fourth brackets (25) that are close to each other. The first roller (27) is rotatably installed inside the third support rod (32); the two ends of the third support rod (32) are provided with a seventh bracket (34), and the fourth synchronous wheel (36) and the third roller (37) are rotatably installed inside the seventh bracket (34); the two third synchronous wheels (30) are connected to the corresponding fourth synchronous wheel (36) and third roller (37) respectively through the second synchronous belt (38) and the third synchronous belt (39), the second synchronous belt (38) is fixedly connected to the print head (10), and the third synchronous belt (39) is fixedly connected to the third support rod (32).

5. The high-speed 3D printing apparatus for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 4, characterized in that, A first flexible rod (22) is connected between the second support rod (21) and the bottom of the box (1), a second flexible rod (40) is connected between the third support rod (32) and the first support rod (20), and a third flexible rod (41) is connected between the print head (10) and the third support rod (32); the first flexible rod (22), the second flexible rod (40) and the third flexible rod (41) form a spatial flexible constraint network.

6. The high-speed 3D printing apparatus for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 1, characterized in that, The base (3) has multiple hollow holes on its four sides, and multiple cooling fans are installed on one side of the base (3). The cooling fans and the hollow holes form a forced convection cooling channel.

7. The high-speed 3D printing apparatus for manufacturing prosthetics and orthotics using fused deposition modeling technology according to claim 6, characterized in that, The outer wall of the housing (1) is made of soundproof board, and the cooling fan is an adjustable speed silent fan.

Images