3D printer forming platform lifting structure

Abstract

The utility model provides a 3D printer forming platform lifting structure which comprises a base, a height adjusting mechanism is fixedly installed on the rear side of the top of the base, a base plate is fixedly installed on the front face of the moving end of the height adjusting mechanism, and a rotation adjusting set is fixedly installed in the middle of the base plate. The 3D printer forming platform lifting structure has the stable height and angle adjusting function, in a height adjusting mechanism, a first motor drives a first lead screw to rotate, a lifting sliding block vertically moves in a sliding groove, a base plate is stably driven to achieve accurate height adjustment, in a rotating adjusting set, a second motor drives a rotating disc to rotate, and the height adjusting function is achieved. And meanwhile, a supporting and fixing rod at the front end of the base penetrates through the base plate and is matched with a supporting and fixing sleeve at the top of the frame, the stability of the overall structure is enhanced, it is ensured that the platform is kept stable in the lifting and rotating adjusting process, and a reliable foundation is provided for printing operation.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, and in particular to a lifting structure for a 3D printer forming platform. Background Technology

[0002] As a typical device for rapid prototyping technology, 3D printers transform digital models into three-dimensional entities by layering liquid photosensitive resin, plastic filaments, gypsum powder, and other materials. Their working principle differs from traditional 2D printing and they are widely used in industrial manufacturing, medical, and construction fields. During the 3D printing process, the lifting structure of the forming platform directly affects the printing accuracy and stability. Some existing 3D printers have certain defects in their forming platform lifting structures. 3D printing has stringent requirements for environmental stability, requiring the avoidance of external interference and precise fine-tuning of printing parameters to prevent model deviation. This places higher demands on the performance of the forming platform.

[0003] The 3D printer forming platform lifting structure with announcement number CN214927143U achieves good stability and height adjustment through the design of stabilizers and lifting arms. However, this structure only supports height adjustment in one dimension and lacks lateral displacement adjustment. In actual printing operations, it cannot flexibly adjust the lateral displacement of the supporting platform. This means that when the model size exceeds the bearing range of the initial position of the forming platform, or when the printing position needs to be corrected, the operator must disassemble and reinstall the forming platform, which consumes a lot of time and effort. In addition, when printing models of different sizes, if the lateral position of the platform cannot be flexibly adjusted, it is easy to cause unreasonable distance between the nozzle and the platform, affecting the printing quality and even causing the nozzle to collide with the model and damage the equipment. This functional limitation makes the printing process cumbersome, reduces work efficiency, and makes it difficult to meet diverse and complex printing needs. There is an urgent need to improve the design to enhance the flexibility and practicality of the 3D printer forming platform. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a lifting structure for a 3D printer forming platform, which more accurately solves the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a lifting structure for a 3D printer forming platform, including a base, a height adjustment mechanism fixedly installed on the top rear side of the base, a base plate fixedly installed on the front of the moving end of the height adjustment mechanism, a rotation adjustment group fixedly installed in the middle of the base plate, a displacement compensation group fixedly installed on the top of the rotation adjustment group, and a stable working platform fixedly installed on the top of the displacement compensation group.

[0007] The height adjustment mechanism includes a vertical plate, which is fixedly installed on the top rear side of the base. A sliding groove is provided in the middle of the vertical plate. A first motor is fixedly installed at the bottom of the sliding groove. A first lead screw is fixedly installed at the output end of the first motor. A lifting slider is threadedly connected to the outer surface of the first lead screw. The lifting slider is slidably connected to the inside of the sliding groove. The base plate is fixedly installed on the front of the lifting slider.

[0008] Furthermore, the rotation adjustment group includes a frame, which is fixedly installed on the top of the base plate. A second motor is fixedly connected to the top of the frame, and a turntable is fixedly installed through the output end of the second motor. The displacement compensation group is fixedly connected to the bottom of the turntable.

[0009] Furthermore, a support rod is fixedly installed on both sides of the top front end of the base, the end of the support rod penetrates the base plate, and the base plate is slidably connected to the outer surface of the support rod.

[0010] Furthermore, both sides of the top front end of the frame are fixedly installed with support sleeves, and the upper end of the support rod is inserted into the support sleeve.

[0011] Furthermore, the displacement compensation group includes a guide rail, which is fixedly installed on the top of the turntable. A third motor is fixedly installed on the rear side of the guide rail. A second lead screw is rotatably connected inside the guide rail. A transverse slider is threadedly connected to the outer surface of the second lead screw. A rotation compensation group is fixedly connected to the top of the transverse slider.

[0012] Furthermore, the rotation compensation group includes a base plate, which is fixedly installed on the top of the transverse slider. A fourth motor is fixedly installed in the middle of the top of the base plate, and the stable working platform is fixedly installed at the output end of the fourth motor.

[0013] Furthermore, the base plate is fixedly installed with support frames arranged in a ring at equal intervals on its top. The top of the support frame is rotatably connected with ball bearings. The top of the ball bearings on the support frame is in close contact with the bottom of the stable working platform. Support blocks are fixedly connected to both sides of the bottom of the base plate. The bottom of the support block is also rotatably connected with ball bearings. The bottom of the ball bearings on the support block is in close contact with the top of the guide rail.

[0014] The beneficial effects of this utility model are:

[0015] 1. The lifting structure of this 3D printer's forming platform has stable height and angle adjustment functions. In the height adjustment mechanism, the first motor drives the first lead screw to rotate, causing the lifting slider to move vertically in the slide groove, stably driving the base plate to achieve precise height adjustment. In the rotation adjustment group, the second motor drives the turntable to rotate, thereby driving the upper displacement compensation group and the stable working platform to rotate horizontally and change the direction of displacement. At the same time, the support rod at the front end of the base penetrates the base plate and cooperates with the support sleeve at the top of the frame to enhance the overall structural stability and ensure that the platform remains stable during lifting and rotation adjustment, providing a reliable foundation for printing operations.

[0016] 2. During application, this device performs excellently in terms of lateral adjustment and correction. The third motor of the displacement compensation group drives the second lead screw to rotate, causing the lateral slider to move laterally within the guide rail, realizing flexible lateral displacement of the stable working platform. It can easily meet the needs of printing large models or correcting printing positions without disassembling and reassembling the platform. The fourth motor of the rotation compensation group can drive the stable working platform to make fine-tuning rotations. After completing multi-directional displacement, it can further correct the angle. The ball bearing support structure between the base plate and the guide rail, and between the base plate and the stable working platform, reduces movement resistance, making the adjustment smoother and significantly improving the platform's adaptability to meet diverse printing needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention in its extended state;

[0020] Figure 4 This is a top view of the disassembled rotation compensation assembly of this utility model.

[0021] Figure 5 This is a top-view structural diagram of the disassembled rotation compensation assembly of this utility model.

[0022] In the diagram: 1. Base; 2. Height adjustment mechanism; 21. Vertical plate; 22. Slide groove; 23. First motor; 24. First lead screw; 25. Lifting slider; 3. Base plate; 4. Stable working platform; 5. Rotation adjustment group; 51. Frame; 52. Second motor; 53. Turntable; 54. Support sleeve; 55. Support rod; 6. Displacement compensation group; 61. Guide rail; 62. Third motor; 63. Second lead screw; 64. Lateral slider; 65. Rotation compensation group; 651. Base plate; 652. Fourth motor; 653. Support frame; 654. Ball bearing; 655. Support block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] A lifting structure for a 3D printer forming platform includes a base 1, a height adjustment mechanism 2 fixedly installed on the top rear side of the base 1, a base plate 3 fixedly installed on the front of the moving end of the height adjustment mechanism 2, a rotation adjustment group 5 fixedly installed in the middle of the base plate 3, a displacement compensation group 6 fixedly installed on the top of the rotation adjustment group 5, and a stable working platform 4 fixedly installed on the top of the displacement compensation group 6.

[0026] The height adjustment mechanism 2 includes a vertical plate 21, which is fixedly installed on the top rear side of the base 1. A groove 22 is formed in the middle of the vertical plate 21. A first motor 23 is fixedly installed at the bottom of the groove 22. A first lead screw 24 is fixedly installed at the output end of the first motor 23. A lifting slider 25 is threaded onto the outer surface of the first lead screw 24. The lifting slider 25 is slidably connected to the inside of the groove 22. A base plate 3 is fixedly installed on the front of the lifting slider 25. This 3D printer forming platform lifting structure achieves precise height adjustment through the coordinated operation of its components. During operation, the base 1 serves as a basic support component, providing a stable installation foundation for the entire structure. The vertical plate 21 is fixed within the height adjustment mechanism 2. At the top rear side of the base 1, the groove 22 provides a guide rail for the lifting slider 25. When the height of the molding platform needs to be adjusted, the first motor 23 starts, and its output end drives the first lead screw 24 to rotate. Since the first lead screw 24 is connected to the lifting slider 25 by a thread, and the lifting slider 25 is restricted by the groove 22 to move only in the vertical direction, the rotation of the first lead screw 24 is converted into the vertical sliding of the lifting slider 25 in the groove 22. The base plate 3 fixed on the front of the lifting slider 25 moves synchronously, thereby realizing the height adjustment of the base plate 3 and the subsequently connected rotation adjustment group 5, displacement compensation group 6 and stable working platform 4, improving the overall adaptability and performance of the device during application.

[0027] Combination Figures 1-5As shown, the rotation adjustment group 5 includes a frame 51, which is fixedly installed on the top of the base plate 3. A second motor 52 is fixedly connected to the top of the frame 51. The output end of the second motor 52 passes through the frame 51 and is fixedly installed on a turntable 53. A displacement compensation group 6 is fixedly connected to the bottom of the turntable 53. Support rods 55 are fixedly installed on both sides of the top front end of the base 1. The ends of the support rods 55 pass through the base plate 3. The base plate 3 is slidably connected to the outer surface of the support rods 55. Support sleeves 54 are fixedly installed on both sides of the top front end of the frame 51. The upper end of the support rod 55 is inserted into the inside of the support sleeve 54.

[0028] In the above-described embodiments of this application, the rotation adjustment group 5 of the 3D printer forming platform achieves stable angle adjustment through the collaboration of multiple components. The frame 51 is fixed to the top of the substrate 3, and the second motor 52 is installed inside the top of the frame 51. Its output end passes through the frame 51 and is connected to the turntable 53. When the second motor 52 is started, it directly drives the turntable 53 to rotate, thereby driving the displacement compensation group 6 fixed to the bottom of the turntable 53 and the stable working platform 4 above to rotate synchronously, thereby realizing the angle adjustment of the printing platform. The support rods 55 on both sides of the front end of the base 1 pass through the substrate 3 and cooperate with the support sleeve 54 on the top of the frame 51. When the height adjustment mechanism 2 drives the substrate 3 to rise and fall, the support rods 55 provide sliding guidance for the substrate 3 to ensure the stability of its vertical movement. During the rotation adjustment process, the constraint structure formed by the support rods 55 and the support sleeve 54 restricts the shaking of the frame 51, reduces the offset during rotation, and makes the turntable 53 drive the working table to rotate smoothly, ensuring the accuracy and reliability of multi-angle printing operations.

[0029] Example 2

[0030] Combination Figures 3-5 As shown, the displacement compensation group 6 includes a guide rail 61, which is fixedly installed on the top of the turntable 53. A third motor 62 is fixedly installed on the rear side of the guide rail 61. A second lead screw 63 is rotatably connected inside the guide rail 61. A transverse slider 64 is threadedly connected to the outer surface of the second lead screw 63. A rotation compensation group 65 is fixedly connected to the top of the transverse slider 64. The rotation compensation group 65 includes a base plate 651, which is fixedly installed on the top of the transverse slider 64. A fourth motor 652 is fixedly installed in the middle of the top of the base plate 651. The stable working platform 4 is fixedly installed at the output end of the fourth motor 652. The top of the base plate 651 is fixedly installed with support frames 653 arranged in a ring at equal intervals. The top of the support frame 653 is rotatably connected with ball bearings 654. The top of the ball bearings 654 on the support frame 653 is in close contact with the bottom of the stable working platform 4. Support blocks 655 are fixedly connected to both sides of the bottom of the base plate 651. The bottom of the support block 655 is also rotatably connected with ball bearings 654. The bottom of the ball bearings 654 on the support block 655 is in close contact with the top of the guide rail 61.

[0031] In the above-described embodiments of this application, during the application of this device, the displacement compensation group 6 and the rotation compensation group 65 of the 3D printer forming platform work together to achieve lateral displacement and angle fine adjustment. When the third motor 62 starts, it drives the second lead screw 63 in the guide rail 61 to rotate. The transverse slider 64, which is threadedly connected to the second lead screw 63, moves laterally along the guide rail 61, thereby driving the top base plate 651 and the stable working platform 4 to achieve lateral displacement compensation. The balls 654 of the bottom two support blocks 655 of the base plate 651 fit against the top of the guide rail 61, reducing frictional resistance during lateral movement and ensuring smooth movement. At the same time, the fourth motor 652 can drive the stable working platform 4 to rotate independently to achieve angle fine adjustment. The balls 654 of the top support frame 653 of the base plate 651 support the bottom of the working table to ensure rotational stability. The two sets of mechanisms work together to enable the platform to be further precisely positioned after multi-directional adjustment, improving printing adaptability and accuracy.

[0032] The working principle and advantages of this utility model are as follows: The lifting structure of this 3D printer forming platform achieves precise adjustment through the coordinated operation of multiple mechanisms. In the height adjustment mechanism 2, the first motor 23 drives the first lead screw 24 to rotate, and the lifting slider 25, which is threadedly connected to the lead screw, moves vertically under the guidance of the slide groove 22, thereby driving the front plate 3 to achieve height adjustment; in the rotation adjustment group 5, the second motor 52 drives the turntable 53 to rotate, thereby enabling the upper displacement compensation group 6 and the stable working platform 4 to achieve horizontal angle rotation, thus changing the lateral driving displacement direction of the displacement compensation group 6, enabling it to be flexibly adjusted in multiple directions; the third motor 62 of the displacement compensation group 6 drives the second lead screw 63 to rotate, driving the lateral slider 64 to move laterally within the guide rail 61, thereby achieving lateral displacement adjustment of the stable working platform 4. The fourth motor 652 of the rotation compensation group 65 can independently drive the stable working platform 4 for fine-tuning rotation, enabling it to adjust displacement in multiple directions. This allows for further rotational adjustment of the stable working platform on top, further improving the overall flexibility and adaptability of the device during use. Simultaneously, the ball bearing 654 support structure between the base plate 651 and the guide rail 61, and between the base plate 651 and the stable working platform 4, reduces movement resistance and ensures smooth adjustment in all directions. Furthermore, the support rod 55 at the front end of the base 1 penetrates the base plate 3 and cooperates with the support sleeve 54 at the top of the frame 51, enhancing the overall structural stability and limiting the offset of the base plate 3 during movement.

[0033] This device features multi-dimensional adjustment capabilities, breaking away from the limitations of traditional height-only adjustments. When printing large models or needing to correct printing positions, there's no need to disassemble and reassemble the platform. By using the displacement compensation group 6 to move the stable working platform 4 laterally, the model printing area can be quickly adjusted, significantly saving time and manpower. The rotation adjustment group 5, in conjunction with the rotation compensation group 65, can flexibly adjust the lateral position angle of the platform, ensuring the distance between the nozzle and the platform remains reasonable and preventing nozzle collisions with the model, effectively improving printing accuracy and equipment safety. The ball bearing 654, along with the support block 655 and support frame 653, can assist in support and reinforcement, maintaining strong support stability while adaptively reducing frictional resistance, making platform movement smoother. Combined with the precise height control of the height adjustment mechanism 2, it provides a stable and flexible support platform for 3D printing, meeting diverse and complex printing needs and significantly improving printing efficiency and quality.

[0034] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A lifting structure for a 3D printer forming platform, characterized in that, Includes a base (1), a height adjustment mechanism (2) is fixedly installed on the top rear side of the base (1), a base plate (3) is fixedly installed on the front of the moving end of the height adjustment mechanism (2), a rotation adjustment group (5) is fixedly installed in the middle of the base plate (3), a displacement compensation group (6) is fixedly installed on the top of the rotation adjustment group (5), and a stable working platform (4) is fixedly installed on the top of the displacement compensation group (6). The height adjustment mechanism (2) includes a vertical plate (21), which is fixedly installed on the top rear side of the base (1). A groove (22) is provided in the middle of the vertical plate (21). A first motor (23) is fixedly installed at the bottom of the groove (22). A first lead screw (24) is fixedly installed at the output end of the first motor (23). A lifting slider (25) is threadedly connected to the outer surface of the first lead screw (24). The lifting slider (25) is slidably connected to the inside of the groove (22). The base plate (3) is fixedly installed on the front side of the lifting slider (25).

2. The lifting structure for a 3D printer forming platform according to claim 1, characterized in that, The rotation adjustment group (5) includes a frame (51), which is fixedly installed on the top of the base plate (3). A second motor (52) is fixedly connected to the top of the frame (51). The output end of the second motor (52) passes through the frame (51) and is fixedly installed on a turntable (53). The displacement compensation group (6) is fixedly connected to the bottom of the turntable (53).

3. The lifting structure for a 3D printer forming platform according to claim 2, characterized in that, The base (1) has two fixed support rods (55) on both sides of its top front end. The ends of the support rods (55) penetrate the base plate (3), and the base plate (3) is slidably connected to the outer surface of the support rods (55).

4. The lifting structure for a 3D printer forming platform according to claim 3, characterized in that, The frame (51) has a support sleeve (54) fixedly installed on both sides of the top front end, and the upper end of the support rod (55) is inserted into the support sleeve (54).

5. The lifting structure for a 3D printer forming platform according to claim 1, characterized in that, The displacement compensation group (6) includes a guide rail (61), which is fixedly installed on the top of the turntable (53). A third motor (62) is fixedly installed on the rear side of the guide rail (61). A second lead screw (63) is rotatably connected inside the guide rail (61). A transverse slider (64) is threadedly connected to the outer surface of the second lead screw (63). A rotation compensation group (65) is fixedly connected to the top of the transverse slider (64).

6. The lifting structure for a 3D printer forming platform according to claim 5, characterized in that, The rotation compensation group (65) includes a base plate (651), which is fixedly installed on the top of the transverse slider (64). A fourth motor (652) is fixedly installed in the middle of the top of the base plate (651), and the stable working platform (4) is fixedly installed at the output end of the fourth motor (652).

7. The lifting structure for a 3D printer forming platform according to claim 6, characterized in that, The base plate (651) has a support frame (653) fixedly installed in a ring at equal intervals on its top. The top of the support frame (653) is rotatably connected to a ball bearing (654). The top of the ball bearing (654) on the support frame (653) is in close contact with the bottom of the stable working platform (4). The base plate (651) has a support block (655) fixedly connected to both sides of its bottom. The bottom of the support block (655) is also rotatably connected to a ball bearing (654). The bottom of the ball bearing (654) on the support block (655) is in close contact with the top of the guide rail (61).

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