3D printer for medical high-performance polymer additive manufacturing

Abstract

The application discloses a 3D printer for medical high-performance polymer additive manufacturing and relates to the technical field of three-dimensional object printers; the application comprises a printer and printing material; the printer is connected with a printing platform; after printing is completed, the hollow rod is rotated by rotating the rotating disc, the threaded inserting rod is fixed, the second motor is opened, the second connecting rod of the output end is driven to rotate, the screw rod is driven to rotate, the moving block on the outer surface of the screw rod moves when the screw rod rotates, the moving block drives the connecting plate to move, the hollow rod moves, when the first toothed plate contacts the workpiece after printing, the first toothed plate moves backward under the action of force, the first gear meshing with the first toothed plate rotates, the first gear drives the round rod to rotate, thereby driving the second gear to rotate, the two second toothed plates meshing with the second gear move to the middle, the arc-shaped clamping plates on the two second toothed plates move to the middle, thereby clamping the completed workpiece and taking the workpiece off the printing platform.

Description

Technical Field

[0001] This invention relates to the field of three-dimensional object printing technology, specifically to a 3D printer for medical high-performance polymer additive manufacturing. Background Technology

[0002] 3D object printing is one of the hottest new technologies today. Based on computer 3D modeling or 3D scanning of real objects, it provides a completely new way of creating three-dimensional objects. 3D printing applications have appeared in fields such as art and design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, and more. With the continuous evolution of 3D printing technology, small office and home users can now afford 3D printers for random 3D printing jobs.

[0003] The printer still has some problems during use: Existing printers often use a scraper to remove the printed material from the printing platform after printing, which can easily damage the printing platform. In addition, a small amount of printing material needs to be extruded through the nozzle before printing to test the material's suitability, which is inconvenient for subsequent cleaning. To address these issues, the inventors have proposed a 3D printer for high-performance polymer additive manufacturing in the medical field. Summary of the Invention

[0004] To address the issues of existing printers that rely on scrapers to remove printed materials from the printing platform after printing, which can damage the platform, and the need to test material compatibility by extruding a small amount of material through the nozzle before printing, which makes subsequent cleaning difficult; the present invention aims to provide a 3D printer for high-performance polymer additive manufacturing in the medical field.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a 3D printer for medical high-performance polymer additive manufacturing, comprising a printer and printing material, a printing platform connected to the printer, a printing unit housing connected to the printer, a collection box fixedly provided on the outer surface of the printer, the printing material being movably inserted into the printing unit housing, an auxiliary feeding component provided on the upper surface of the printing unit housing, a drive connection component fixedly provided on the outer surface of the printer, and a fixing component connected to the drive connection component.

[0006] Preferably, the drive connection assembly includes a fixed block and a rotating rod. The fixed block is fixedly connected to the outer surface of the printer. A screw is rotatably provided between the fixed blocks. A support plate is fixedly provided on one side of the fixed block. A protective shell is provided on the upper surface of the support plate. A second motor is disposed inside the protective shell. A second motor is fixedly provided on the upper surface of the support plate. A second connecting rod is provided at the output end of the second motor. The second connecting rod passes through the fixed block. The end of the second connecting rod away from the second motor is fixedly connected to one end of the screw. A movable block is threadedly fitted on the outer surface of the screw. The movable block slides against the outer surface of the printer. A connecting plate is fixedly provided on the upper surface of the printer. The rotating rod is inserted into the connecting plate. A limit groove is opened on the outer surface of the printer. A first limit block is slidably provided in the limit groove. The first limit block is fixedly connected to the moving block. The rotating rod passes through the connecting plate. A hollow rod is fixedly sleeved on the outer surface of the rotating rod. The hollow rod is movably fitted with the upper surface of the printing platform. A turntable is fixedly provided at the other end of the rotating rod away from the hollow rod. Threaded holes are opened on the outer surfaces of the turntable and the connecting plate. Several threaded holes are opened and distributed in a ring array on the outer surfaces of the turntable and the connecting plate. Threaded rods are threadedly inserted into the threaded holes.

[0007] Preferably, the fixing component includes a hollow block, which is fixedly connected to the upper surface of a hollow rod. A round rod is rotatably mounted on the inner surface of the hollow block, passing through the hollow rod. The other end of the round rod is rotatably connected to the inner surface of the hollow rod. A first gear is sleeved on the outer surface of the round rod, and the first gear is located inside the hollow block. The first gear meshes with a first toothed plate. A second limiting block is fixed on one side of the first toothed plate, which movably passes through the hollow block. A second gear is sleeved on the outer surface of the round rod. A sliding groove is formed on the inner surface of the hollow rod, and a slider slides within the groove. A second toothed plate is fixed at the upper end of the slider, and the second gear meshes with the second toothed plate. A second spring is fixed between the inner surface of the hollow rod and one side of the second toothed plate. An arc-shaped clamping plate is fixed on the upper surface of the second toothed plate, passing through the hollow rod. A spade is fixed on one side of the hollow rod, and the spade slides against the upper surface of the printing platform.

[0008] Preferably, the auxiliary feeding assembly includes a square groove, which is formed on the upper surface of the printing unit housing. A first spring is fixedly provided on the inner surface of the square groove, and a movable plate is fixedly provided on the other end of the first spring. The movable plate slides against the inner surface of the square groove. A vertical plate is fixedly provided on the upper surface of the movable plate. A feeding roller is rotatably provided between the vertical plates. The feeding roller is in movable contact with the printing material. A connecting block is fixedly provided on one end of the feeding roller. The connecting block passes through the vertical plate. A first bevel gear is fixedly provided on the other end of the connecting block. A first motor is fixedly connected to the upper surface of the printing unit housing. A first connecting rod is provided at the output end of the first motor. A second bevel gear is fixedly provided at the upper end of the first connecting rod. The second bevel gear meshes with the first bevel gear.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. After printing, the rotatable turntable drives the hollow rod to rotate to one side of the printer via a rotating rod. After rotating it to 90 degrees, the threaded rod can be fixed by inserting it into the threaded hole corresponding to the turntable on the connecting plate. Then, by turning on the second motor, the second connecting rod at the output end is rotated, which in turn drives the screw to rotate. When the screw rotates, the moving block on its outer surface moves, which in turn drives the connecting plate to move, thus moving the hollow rod. When the first toothed plate contacts the printed workpiece, the first toothed plate moves backward under the force, which drives the first gear meshing with it to rotate. The first gear drives the round rod to rotate, which in turn drives the second gear to rotate. The second gear drives the two second toothed plates meshing with it to move towards the middle, which causes the arc-shaped clamping plate connected to the two second toothed plates to move towards the middle, thereby clamping the completed workpiece and taking it off the printing platform. When the hollow rod moves, the material generated during the test can be scraped off the printing platform by the shovel plate and pushed into the collection box. The finally completed workpiece also falls into the collection box, making it easy to remove the completed workpiece from the printing platform and collect it. 2. In this invention, the movable plate can be pulled to both sides first, causing the first spring to contract. Then, the printing material is connected to the printing unit on the printer, and the printing unit heats the printing material. The force of the first spring causes the feeding roller to clamp the printing material. During feeding, the first motor can be turned on to drive the first connecting rod at the output end to rotate, thereby causing the second bevel gear to rotate. The second bevel gear drives the first bevel gear meshing with it to rotate, thereby driving the feeding roller to rotate through the connecting block, which plays an auxiliary feeding role. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the drive connection component structure of the present invention.

[0013] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0014] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B.

[0015] Figure 5 This is a schematic diagram of the auxiliary feeding component of the present invention.

[0016] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C.

[0017] Figure 7 This is a schematic diagram of the hollow rod and printing platform structure of the present invention.

[0018] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point D.

[0019] In the diagram: 1. Printer; 11. Printing platform; 12. Printing unit housing; 13. Collection box; 2. Printing material; 3. Auxiliary feeding assembly; 31. Square slot; 32. First spring; 33. Moving plate; 34. Vertical plate; 36. Feeding roller; 37. Connecting block; 38. First bevel gear; 39. First motor; 391. First connecting rod; 392. Second bevel gear; 4. Drive connection assembly; 41. Fixing block; 42. Screw; 43. Support plate; 431. Protective shell; 44. Second motor; 44 1. Second connecting rod; 45. Moving block; 46. Limiting groove; 461. First limiting block; 47. Connecting plate; 48. Rotating rod; 481. Turntable; 49. Threaded hole; 491. Threaded insertion rod; 5. Hollow rod; 51. Shovel plate; 52. Through groove; 6. Fixing assembly; 61. Hollow block; 62. Round rod; 63. First gear; 631. First toothed plate; 632. Second limiting block; 64. Second gear; 65. Second toothed plate; 66. Sliding groove; 67. Sliding block; 68. Second spring; 69. Arc-shaped clamping plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: As Figure 1-8As shown, the present invention provides a 3D printer for medical high-performance polymer additive manufacturing, including a printer 1 and a printing material 2. A printing platform 11 is connected to the printer 1, and a printing unit housing 12 is connected to the printer 1. A collection box 13 is fixedly provided on the outer surface of the printer 1. A sponge pad is provided inside the collection box 13 to protect the workpiece. The printing material 2 is movably inserted into the printing unit housing 12. An auxiliary feeding component 3 is provided on the upper surface of the printing unit housing 12. A drive connection component 4 is fixedly provided on the outer surface of the printer 1, and a fixing component 6 is connected to the drive connection component 4.

[0022] The drive connection assembly 4 includes a fixed block 41 and a rotating rod 48. The fixed block 41 is fixedly connected to the outer surface of the printer 1. A screw 42 is rotatably provided between the fixed blocks 41. A support plate 43 is fixedly provided on one side of the fixed block 41. A second motor 44 is fixedly provided on the upper surface of the support plate 43. A protective shell 431 is provided on the upper surface of the support plate 43. The second motor 44 is located inside the protective shell 431. A second connecting rod 441 is provided at the output end of the second motor 44. The second connecting rod 441 passes through the fixed block 41. The end of the second connecting rod 441 away from the second motor 44 is fixedly connected to one end of the screw 42. A moving block 45 is threadedly fitted on the outer surface of the screw 42. The moving block 45 slides against the outer surface of the printer 1. The upper surface of the moving block 45 is fixedly... A connecting plate 47 is fixedly provided, and a rotating rod 48 is rotatably inserted into the connecting plate 47, passing through the connecting plate 47. A hollow rod 5 is fixedly sleeved on the outer surface of the rotating rod 48, and a scraper plate 51 is fixedly provided on one side of the hollow rod 5. The scraper plate 51 slides and fits against the upper surface of the printing platform 1, and the hollow rod 5 is movably fitted against the upper surface of the printing platform 11. A turntable 481 is fixedly provided at the other end of the rotating rod 48 away from the hollow rod 5. Threaded holes 49 are opened on the outer surfaces of both the turntable 481 and the connecting plate 47. Threaded rods 491 are inserted into the threads of the threaded holes 49. Several threaded holes 49 are opened, and the threaded holes 49 are distributed in a circular array on the outer surfaces of the turntable 481 and the connecting plate 47. The fixing component 6 includes a hollow block 61, which is fixedly connected to the hollow rod. On the upper surface of the hollow rod 5, a round rod 62 is rotatably mounted on the inner surface of the hollow block 61. The round rod 62 passes through the hollow rod 5, and the other end of the round rod 62 is rotatably connected to the inner surface of the hollow rod 5. A first gear 63 is sleeved on the outer surface of the round rod 62. The first gear 63 is located inside the hollow block 61 and meshes with a first toothed plate 631. A second limiting block 632 is fixed on one side of the first toothed plate 631 for auxiliary limiting. The first toothed plate 631 movably passes through the hollow block 61. A second gear 64 is sleeved on the outer surface of the round rod 62. A sliding groove 66 is opened on the inner surface of the hollow rod 5. A slider 67 slides in the sliding groove 66. A second toothed plate 65 is fixed on the upper end of the slider 67. There are two second toothed plates 65. The second gear 64 and the second toothed plate 65 are connected. A second spring 68 is fixedly installed between the inner surface of the hollow rod 5 and one side of the second toothed plate 65. An arc-shaped clamping plate 69 is fixedly installed on the upper surface of the second toothed plate 65, and the arc-shaped clamping plate 69 passes through the hollow rod 5. After printing, the rotatable turntable 481 drives the hollow rod 5 to rotate to one side of the printer 1 via the rotating rod 48. After rotating it to ninety degrees, the threaded insert rod 491 can be inserted into the threaded hole 49 corresponding to the turntable 481 on the connecting plate 47 for fixation. Then, by turning on the second motor 44, it drives the second connecting rod 441 at the output end to rotate, thereby driving the screw 42 to rotate. When the screw 42 rotates, the moving block 45 on its outer surface moves, which drives the connecting plate 47 to move, thereby moving the hollow rod 5.When the first toothed plate 631 contacts the printed workpiece, the force causes it to move backward, rotating the meshing first gear 63. The first gear 63 then rotates the round rod 62, causing the second gear 64 to rotate. The second gear 64 then moves the two meshing second toothed plates 65 towards the center, causing the arc-shaped clamping plates 69 connected to the two second toothed plates 65 to move towards the center, thus clamping the completed workpiece and removing it from the printing platform 11. As the hollow rod 5 moves, the scraper plate 51 scrapes the material generated during testing from the printing platform 11 and pushes it into the collection box 13. The finally completed workpiece also falls into the collection box 13, facilitating its removal from the printing platform 11 and collection.

[0023] By adopting the above technical solution, it is easier to remove the processed parts.

[0024] The auxiliary feeding assembly 3 includes a square groove 31, which is formed on the upper surface of the printing unit housing 12. A first spring 32 is fixedly mounted on the inner surface of the square groove 31, and a movable plate 33 is fixedly mounted on the other end of the first spring 32. The movable plate 33 slides against the inner surface of the square groove 31. A vertical plate 34 is fixedly mounted on the upper surface of the movable plate 33. A feeding roller 36 is rotatably mounted between the vertical plates 34. The feeding roller 36 is in movable contact with the printing material 2. A connecting block 37 is fixedly mounted on one end of the feeding roller 36, and the connecting block 37 passes through the vertical plate 34. A first bevel gear 38 is fixedly mounted on the other end of the connecting block 37. A first motor 39 is fixedly connected to the upper surface of the printing unit housing 12, and a first connecting rod 39 is provided at the output end of the first motor 39. 1. A second bevel gear 392 is fixedly provided at the upper end of the first connecting rod 391. The second bevel gear 392 meshes with the first bevel gear 38. The moving plate 33 can be pulled to both sides first, and the first spring 32 will contract. Then, by connecting the printing material 2 to the printing unit on the printer 1, the printing unit heats the printing material 2. The force of the first spring 32 causes the feeding roller 36 to clamp the printing material 2. During feeding, the first motor 39 can be turned on to drive the first connecting rod 391 at the output end to rotate, thereby causing the second bevel gear 392 to rotate. The second bevel gear 392 drives the first bevel gear 38 that meshes with it to rotate, thereby driving the feeding roller 36 to rotate through the connecting block 37, which plays an auxiliary feeding role.

[0025] By adopting the above technical solution, material feeding is facilitated.

[0026] The upper surface of the support plate 43 is protected by a shell 431, and the second motor 44 is located inside the shell 431.

[0027] By adopting the above technical solution, the second motor 44 is protected.

[0028] A limiting groove 46 is provided on the outer surface of the printer 1, and a first limiting block 461 is slidably provided in the limiting groove 46. The first limiting block 461 is fixedly connected to the moving block 45.

[0029] By adopting the above technical solution, the movement of the moving block 45 is assisted.

[0030] Working Principle: In use, the movable plate 33 can be pulled to both sides, causing the first spring 32 to contract. Then, the printing material 2 is connected to the printing unit on the printer 1. The printing unit heats the printing material 2, and the force of the first spring 32 causes the feeding roller 36 to clamp the printing material 2. During feeding, the first motor 39 can be turned on to rotate the first connecting rod 391 at the output end, thereby rotating the second bevel gear 392. The second bevel gear 392 drives the meshing first bevel gear 38 to rotate, which in turn drives the feeding roller 36 to rotate via the connecting block 37, thus assisting in feeding. After printing, the turntable 481 can be rotated, causing the hollow rod 5 to rotate towards one side of the printer 1 via the rotating rod 48. After rotating it to ninety degrees, the threaded rod 491 can be inserted into the threaded hole 49 corresponding to the turntable 481 on the connecting plate 47 for fixation. Then, the second motor 44 can be turned on to rotate the second connecting rod 391 at the output end. The connecting rod 441 rotates, thereby driving the screw 42 to rotate. When the screw 42 rotates, the moving block 45 on its outer surface moves, which in turn drives the connecting plate 47 to move, thus moving the hollow rod 5. When the first toothed plate 631 contacts the printed workpiece, the first toothed plate 631 moves backward under the force, driving the first gear 63, which meshes with it, to rotate. The first gear 63 drives the round rod 62 to rotate, thus driving the second gear 64 to rotate. The second gear 64 drives the two second toothed plates 65 that mesh with it to move towards the middle, causing the arc-shaped clamping plate 69 connected to the two second toothed plates 65 to move towards the middle, thereby clamping the completed workpiece and taking it off the printing platform 11. When the hollow rod 5 moves, the shovel plate 51 can shovel the material generated during the test off the printing platform 11 and push it into the collection box 13. The finally completed workpiece also falls into the collection box 13, making it easy to remove the completed workpiece from the printing platform 11 and collect it.

[0031] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A 3D printer for medical high-performance polymer additive manufacturing, comprising a printer (1) and printing material (2), characterized in that: The printer (1) is connected to a printing platform (11), and the printer (1) is connected to a printing unit housing (12). The printing material (2) is movably inserted into the printing unit housing (12). An auxiliary feeding component (3) is provided on the upper surface of the printing unit housing (12). A drive connection component (4) is fixedly provided on the outer surface of the printer (1). A fixing component (6) is connected to the drive connection component (4). The drive connection assembly (4) includes a fixed block (41) and a rotating rod (48). The fixed block (41) is fixedly connected to the outer surface of the printer (1). A screw (42) is rotatably provided between the fixed blocks (41). A support plate (43) is fixedly provided on one side of the fixed block (41). A second motor (44) is fixedly provided on the upper surface of the support plate (43). A second connecting rod (441) is provided at the output end of the second motor (44). The second connecting rod (441) passes through the fixed block (41). The end of the second connecting rod (441) away from the second motor (44) is fixedly connected to one end of the screw (42). A moving block is threaded on the outer surface of the screw (42). 45), the moving block (45) slides against the outer surface of the printer (1), the upper surface of the moving block (45) is fixedly provided with a connecting plate (47), the rotating rod (48) is rotatably inserted on the connecting plate (47), the rotating rod (48) passes through the connecting plate (47), the outer surface of the rotating rod (48) is fixedly sleeved with a hollow rod (5), the hollow rod (5) is movably attached to the upper surface of the printing platform (11), the other end of the rotating rod (48) away from the hollow rod (5) is fixedly provided with a turntable (481), the outer surface of the turntable (481) and the connecting plate (47) are both provided with threaded holes (49), and a threaded rod (491) is threadedly inserted into the threaded hole (49). The fixing component (6) includes a hollow block (61), which is fixedly connected to the upper surface of the hollow rod (5). A round rod (62) is rotatably provided on the inner surface of the hollow block (61), and the round rod (62) passes through the hollow rod (5). The other end of the round rod (62) is rotatably connected to the inner surface of the hollow rod (5). A first gear (63) is sleeved on the outer surface of the round rod (62). The first gear (63) is located inside the hollow block (61), and the first gear (63) meshes with a first toothed plate (631). The first toothed plate (631) movably passes through the hollow block (5). Block (61), the outer surface of the round rod (62) is fitted with a second gear (64), the inner surface of the hollow rod (5) is provided with a sliding groove (66), a slider (67) is slidably provided in the sliding groove (66), the upper end of the slider (67) is fixedly provided with a second toothed plate (65), the second gear (64) meshes with the second toothed plate (65), a second spring (68) is fixedly provided between the inner surface of the hollow rod (5) and one side of the second toothed plate (65), an arc-shaped clamping plate (69) is fixedly provided on the upper surface of the second toothed plate (65), and the arc-shaped clamping plate (69) passes through the hollow rod (5).

2. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, The auxiliary feeding assembly (3) includes a square groove (31) on the upper surface of the printing unit housing (12). A first spring (32) is fixedly provided on the inner surface of the square groove (31), and a moving plate (33) is fixedly provided at the other end of the first spring (32). The moving plate (33) slides against the inner surface of the square groove (31). A vertical plate (34) is fixedly provided on the upper surface of the moving plate (33). A feeding roller (36) is rotatably provided between the vertical plates (34). The feeding roller (36) and the printing material ( 2) Active fitting, one end of the feeding roller (36) is fixedly provided with a connecting block (37), the connecting block (37) passes through the vertical plate (34), the other end of the connecting block (37) is fixedly provided with a first bevel gear (38), the first motor (39) is fixedly connected to the upper surface of the printing unit housing (12), the output end of the first motor (39) is provided with a first connecting rod (391), the upper end of the first connecting rod (391) is fixedly provided with a second bevel gear (392), and the second bevel gear (392) meshes with the first bevel gear (38).

3. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, The upper surface of the support plate (43) is protected by a shell (431), and the second motor (44) is disposed inside the shell (431).

4. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, The printer (1) has a limiting groove (46) on its outer surface. A first limiting block (461) is slidably provided in the limiting groove (46). The first limiting block (461) is fixedly connected to the moving block (45).

5. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, The threaded holes (49) are provided in a plurality of them, and the threaded holes (49) are arranged in a ring array on the outer surface of the turntable (481) and the connecting plate (47).

6. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, A second limiting block (632) is fixedly provided on one side of the first toothed plate (631).

7. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, A shovel plate (51) is fixedly provided on one side of the hollow rod (5), and the shovel plate (51) slides and fits against the upper surface of the printing platform (11).

8. The 3D printer for medical high-performance polymer additive manufacturing as described in claim 1, characterized in that, A collection box (13) is fixedly provided on the outer surface of the printer (1).

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