Uniformly-heated 3D printing drying device

Abstract

The invention belongs to the field of 3D printing, particularly relates to a uniformly-heated 3D printing drying device, and provides the following scheme aiming at the problems that some parts of a printed piece are excessively dried and the other parts are insufficiently dried due to the problem of non-uniform drying in an existing traditional drying mode, and the quality of the printed piece is influenced: the 3D printing drying device comprises a drying box; an opening is formed in one side of the drying box, the same fixing plate is fixedly connected between the inner walls of the two sides of the drying box, a containing disc is arranged at the top of the fixing plate and used for containing a printing piece, and the containing disc is driven by a servo motor to rotate, so that the 3D printing piece can be evenly heated in the drying process; the problem of local overheating or insufficient drying possibly caused by traditional fixed drying is avoided, so that the drying efficiency and the drying effect are remarkably improved, and by designing a small-amplitude forward and reverse rotation mechanism of the arc-shaped blocks, direct contact between the arc-shaped blocks and the fixing plates in the drying process is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing drying device with uniform heating. Background Art

[0002] 3D printing is an advanced technology for manufacturing three-dimensional objects. Compared with traditional industrial manufacturing, it does not require molds or large production lines. Simply put, 3D printing is to build objects by stacking materials layer by layer on a machine based on a three-dimensional model generated by a computer.

[0003] In the field of 3D printing, printed parts often need to be dried after printing to remove residual moisture or solvents and ensure the strength and stability of the printed parts. However, traditional drying methods often have the problem of uneven drying, resulting in some parts of the printed parts being over-dried and other parts being under-dried, affecting the quality of the printed parts. Therefore, a device that can evenly dry printed parts is needed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of uneven drying in the traditional drying method in the prior art, which causes some parts of the print to be over-dried while other parts are under-dried, affecting the quality of the print, and to propose a 3D printing drying device with uniform heating.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A 3D printing drying device with uniform heating, comprising a drying box, one side of the drying box is open, a fixed plate is fixedly connected between the inner walls of both sides of the drying box, a placement tray is arranged on the top of the fixed plate, the placement tray is used to place the printed work, and a driving component for driving the placement tray to rotate is arranged between the bottom of the fixed plate and the bottom inner wall of the drying box;

[0007] A rotating rod is rotatably connected to the inner wall of the drying box on one side away from the opening, one end of the rotating rod is fixedly connected to a connecting plate, and a drying component for drying printed pieces is arranged on one side of the connecting plate;

[0008] A sliding plate is slidably connected to an inner wall of one side of the drying box, and a swing component for driving the rotating rod to swing is arranged on the top of the sliding plate.

[0009] In a possible design, the driving assembly includes a rotating shaft rotatably connected to the inner wall of the bottom of the drying box, the top of the rotating shaft rotates through a fixed plate and is fixedly connected to the bottom of a placement plate, a plurality of circular holes are provided inside the placement plate, a servo motor is fixedly connected to the bottom of the drying box, the output shaft of the servo motor rotates through the drying box and is fixedly connected to the bottom of the rotating shaft, and strip holes are provided on both sides of the fixed plate.

[0010] In a possible design, the drying component includes two symmetrically arranged rectangular holes opened inside the connecting plate, a rectangular block is slidably connected inside the rectangular hole, a connecting rod is fixedly connected to one side of the rectangular block, an arc block is fixedly connected to one end of the connecting rod, an arc cavity is opened on one side of the arc block, and a plurality of heating tubes are embedded in the arc cavity.

[0011] In a possible design, the swing assembly includes a No. 1 rack fixedly connected to the top of the sliding plate, the outer wall of the rotating rod is fixedly sleeved with a gear, the gear is meshed with the No. 1 rack, a trapezoidal groove is opened on one side of the sliding plate, and two symmetrically arranged springs are fixedly connected between the bottom of the sliding plate and the bottom inner wall of the drying box.

[0012] In a possible design, a rotating block is fixedly sleeved on the outer wall of the rotating shaft, and a plurality of gear teeth are fixedly connected to the outer wall of the rotating block. The plurality of gear teeth are divided into a plurality of groups, and the plurality of groups of gear teeth are arranged at intervals on the outer wall of the rotating block.

[0013] In a possible design, a No. 2 rack is slidably connected to the bottom inner wall of the drying box, one end of the No. 2 rack is fixedly connected to the inner wall of one side of the drying box with a same tension spring, the No. 2 rack is meshed with the gear teeth, a vertical rod is fixedly connected to one side of the top of the No. 2 rack, a push rod is fixedly connected to the top of one side of the vertical rod, one end of the push rod extends to the interior of the trapezoidal groove and is used in conjunction with the trapezoidal groove.

[0014] In a possible design, the internal rotation of the connecting plate is penetrated by a same bidirectional screw rod, the bidirectional screw rod thread passes through two rectangular blocks, and one end of the bidirectional screw rod is fixedly connected to an operating block.

[0015] In a possible design, four corners of the bottom of the drying box are fixedly connected to support legs, a door panel is hinged on one side of the drying box, and a handle is fixedly connected to one side of the door panel.

[0016] In this application, when in use, the user can place the 3D printed object on the top of the placement plate. The setting of multiple circular holes can make the bottom of the printed object dry normally. After closing the door panel, start the servo motor and multiple heating tubes to start the drying process;

[0017] At this time, the output shaft of the servo motor drives the shaft to rotate, the shaft drives the placement plate to rotate, and the placement plate drives the printed part to rotate, so that the periphery of the printed part can be heated evenly to ensure the drying effect. At the same time, multiple heating tubes start to heat, which can improve the drying efficiency;

[0018] When the rotating shaft rotates, it can drive the rotating block to rotate, and the rotating block drives multiple gear teeth on the outer wall to rotate, and multiple sets of gear teeth are meshed with the second rack at intervals. When the gear teeth drive the second rack to move horizontally, the second rack drives the vertical rod to move horizontally and stretch the tension spring, and the vertical rod drives the push rod to move horizontally, and the push rod moves horizontally inside the trapezoidal groove, thereby driving the sliding plate to move downward;

[0019] At this time, the sliding plate drives the No. 1 rack to move down and squeeze the spring, the No. 1 rack drives the gear to rotate, the gear drives the rotating rod to rotate, the rotating rod drives the connecting plate to rotate, the connecting plate drives the connecting rods at both ends to rotate, the connecting rod drives the arc block to rotate, the arc block rotates around the print piece in the vertical direction to ensure that the print piece is evenly dried. When the gear teeth are separated from the No. 2 rack, the No. 2 rack is reset under the tension of the tension spring, the sliding plate is reset under the elastic force of the spring, the gear starts to reverse, and then can drive the two arc blocks to perform a small positive and negative rotation to avoid contact with the fixed plate;

[0020] At the same time, during drying, the distance between the two arc blocks can be appropriately adjusted according to the size of the print. By rotating the operating block on one side, the operating block drives the bidirectional screw to rotate, and the bidirectional screw drives the two rectangular blocks to move closer or farther away from each other, thereby driving the connecting rod to move, and the connecting rod drives the arc block to move, thereby adjusting the distance between the two arc blocks to adapt to the size of the print and enhance the scope of application of the device.

[0021] Beneficial effects: Improve drying efficiency and effect: The servo motor drives the placement plate to rotate, so that the 3D printed parts can be evenly heated during the drying process, avoiding the problem of local overheating or insufficient drying that may be caused by traditional fixed drying, thereby significantly improving the drying efficiency and drying effect.

[0022] Automatic adjustment of drying angle: Using a complex gear, rack and spring transmission system, the arc block can automatically move up and down as the placement plate rotates, ensuring that the print is always evenly wrapped during the drying process, further improving the uniformity and efficiency of drying.

[0023] Avoid collision and damage: By designing a small positive and negative reversal mechanism for the arc block, direct contact between the arc block and the fixed plate during the drying process is effectively avoided, reducing the risk of damage to the print due to collision and protecting the integrity of the print.

[0024] Flexible adaptation to prints of different sizes: By adjusting the bidirectional screw through the operating block, the distance between the two arc blocks can be easily adjusted to adapt to 3D prints of different sizes and shapes, which greatly improves the versatility and practicality of the device and meets diversified drying needs.

[0025] Compact structure and comprehensive functions: The device integrates multiple functions such as spin drying, automatic adjustment, size adaptation, etc. It has a clever design and compact structure, which not only improves space utilization, but also ensures convenience and efficiency of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a 3D printing drying device with uniform heating proposed by the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a 3D printing and drying device with uniform heating from a second viewing angle proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the main structure of a 3D printing drying device with uniform heating proposed by the present invention;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a placing plate and a fixing plate in a 3D printing and drying device with uniform heating proposed by the present invention;

[0030] Figure 5 A schematic diagram of the three-dimensional structure of a connecting plate and a sliding plate in a 3D printing drying device with uniform heating proposed by the present invention;

[0031] Figure 6 A schematic diagram of the three-dimensional structure of a sliding plate and a second rack in a 3D printing drying device with uniform heating proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the three-dimensional structure of a connecting plate and an arc block in a 3D printing and drying device with uniform heating proposed by the present invention.

[0033] In the figure: 1. drying box; 2. connecting plate; 3. door panel; 4. servo motor; 5. supporting leg; 6. fixing plate; 7. handle; 8. arc block; 9. placing plate; 10. rotating block; 11. round hole; 12. rotating shaft; 13. strip hole; 14. gear; 15. connecting rod; 16. rack No. 1; 17. pushing rod; 19. sliding plate; 20. trapezoidal groove; 21. spring; 22. vertical rod; 23. rack No. 2; 24. tension spring; 25. gear; 26. rotating rod; 27. heating tube; 28. arc cavity; 29. ​​rectangular block; 30. bidirectional screw rod; 31. rectangular hole; 32. operating block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Example 1; Reference Figure 1-7 A 3D printing drying device with uniform heating, the structure of which specifically includes a drying box 1, a fixed plate 6, a placement plate 9, a driving component, a rotating rod 26, a connecting plate 2, a drying component, a sliding plate 19 and a swing component.

[0036] One side of the drying box 1 is designed to be open, which is convenient for putting in and taking out the prints. A fixed plate 6 is fixedly connected between the inner walls on both sides of the drying box 1, and a placement tray 9 is arranged on the top of the fixed plate 6 for stably placing the prints completed by 3D printing. A driving assembly is arranged between the bottom inner wall of the fixed plate 6 and the bottom inner wall of the drying box 1 to drive the placement tray 9 to rotate. The driving assembly includes a rotating shaft 12 rotatably connected to the inner wall of the bottom of the drying box 1, and the top of the rotating shaft 12 rotates through the fixed plate 6 and is fixedly connected to the bottom of the placement tray 9, so that when the rotating shaft 12 rotates, the placement tray 9 can be driven to rotate synchronously. A plurality of circular holes 11 are opened inside the placement tray 9 to facilitate the circulation of hot air and improve the drying efficiency. A servo motor 4 is fixedly connected to the bottom of the drying box 1, and the output shaft of the servo motor 4 rotates through the drying box 1 and is fixedly connected to the bottom of the rotating shaft 12. The rotation of the rotating shaft 12 can be realized by the drive of the servo motor 4. In addition, strip holes 13 are opened on both sides of the fixed plate 6 to facilitate further circulation of hot air.

[0037] A rotating rod 26 is rotatably connected to the inner wall of the drying box 1 away from the opening, one end of the rotating rod 26 is fixedly connected to a connecting plate 2, and a drying assembly is arranged on one side of the connecting plate 2. The drying assembly includes two symmetrically arranged rectangular holes 31 opened inside the connecting plate 2, a rectangular block 29 is slidably connected inside the rectangular holes 31, a connecting rod 15 is fixedly connected to one side of the rectangular block 29, an arc block 8 is fixedly connected to one end of the connecting rod 15, an arc cavity 28 is opened on one side of the arc block 8, and a plurality of heating tubes 27 are embedded inside the arc cavity 28 for drying the printed piece. By adjusting the position of the rectangular block 29 in the rectangular hole 31, the distance between the arc block 8 and the printed piece can be changed, thereby adjusting the drying effect.

[0038] A sliding plate 19 is slidably connected to the inner wall of one side of the drying box 1, and a swing assembly is arranged on the top of the sliding plate 19. The swing assembly includes a No. 1 rack 16 fixedly connected to the top of the sliding plate 19, and a gear 25 is fixedly sleeved on the outer wall of the rotating rod 26, and the gear 25 is meshed with the No. 1 rack 16. When the sliding plate 19 slides on the inner wall of the drying box 1, the gear 25 can be driven to rotate by the No. 1 rack 16, thereby swinging the rotating rod 26 to achieve the angle adjustment of the drying assembly. A trapezoidal groove 20 is provided on one side of the sliding plate 19, and two symmetrically arranged springs 21 are fixedly connected between the bottom of the sliding plate 19 and the bottom inner wall of the drying box 1. The arrangement of the spring 21 can ensure that the sliding plate 19 can automatically reset when not subjected to external force.

[0039] In order to further optimize the structure, a rotating block 10 is fixedly sleeved on the outer wall of the rotating shaft 12, and a plurality of gear teeth 14 are fixedly connected to the outer wall of the rotating block 10. The plurality of gear teeth 14 are divided into a plurality of groups and arranged at intervals on the outer wall of the rotating block 10. A second rack 23 is slidably connected to the inner wall of the bottom of the drying box 1, and a tension spring 24 is fixedly connected between one end of the second rack 23 and the inner wall of one side of the drying box 1, and the second rack 23 is meshed with the gear teeth 14. When the second rack 23 slides on the inner wall of the drying box 1, the gear teeth 14 can drive the rotating block 10 to rotate, thereby rotating the rotating shaft 12. A vertical rod 22 is fixedly connected to one side of the top of the second rack 23, and a push rod 17 is fixedly connected to the top of one side of the vertical rod 22, and one end of the push rod 17 extends to the inside of the trapezoidal groove 20 and cooperates with the trapezoidal groove 20. When the sliding plate 19 slides, the trapezoidal groove 20 will squeeze the push rod 17 , and the push rod 17 drives the second rack 23 to slide, thereby driving the rotating shaft 12 .

[0040] In order to facilitate the adjustment of the position of the drying assembly, the connection plate 2 is internally rotated with a same bidirectional screw 30, and the bidirectional screw 30 is threaded through the two rectangular blocks 29. By rotating the bidirectional screw 30, the positions of the two rectangular blocks 29 in the rectangular holes 31 can be adjusted synchronously, thereby changing the distance between the arc block 8 and the print. One end of the bidirectional screw 30 is fixedly connected to an operating block 32 for easy operation.

[0041] Example 2; Reference Figure 1-4 , improved on the basis of embodiment 1: In addition, a support leg 5 is fixedly connected to each of the four corners of the bottom of the drying box 1 to support the entire device. A door panel 3 is hinged on one side of the drying box 1, and a handle 7 is fixedly connected to one side of the door panel 3 to facilitate opening and closing the drying box 1.

[0042] However, as is well known to those skilled in the art, the working principles and wiring methods of the heating tube 27 and the servo motor 4 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 3D printing drying device with uniform heating, characterized in that: include: A drying box (1), one side of the drying box (1) is open, a fixed plate (6) is fixedly connected between the inner walls on both sides of the drying box (1), a placement tray (9) is arranged on the top of the fixed plate (6), the placement tray (9) is used to place printed pieces, and a driving component for driving the placement tray (9) to rotate is arranged between the bottom of the fixed plate (6) and the bottom inner wall of the drying box (1); A rotating rod (26) is rotatably connected to the inner wall of the drying box (1) away from the opening, one end of the rotating rod (26) is fixedly connected to a connecting plate (2), and a drying component for drying printed matter is provided on one side of the connecting plate (2); A sliding plate (19) is slidably connected to an inner wall of one side of the drying box (1), and a swinging assembly for driving the rotating rod (26) to swing is arranged on the top of the sliding plate (19).

2. A 3D printing drying device with uniform heating according to claim 1, characterized in that: The driving assembly comprises a rotating shaft (12) rotatably connected to the inner wall of the bottom of the drying box (1); the top of the rotating shaft (12) rotatably penetrates the fixed plate (6) and is fixedly connected to the bottom of the placement plate (9); a plurality of circular holes (11) are provided inside the placement plate (9); a servo motor (4) is fixedly connected to the bottom of the drying box (1); the output shaft of the servo motor (4) rotatably penetrates the drying box (1) and is fixedly connected to the bottom of the rotating shaft (12); and strip holes (13) are provided on both sides of the fixed plate (6).

3. The 3D printing drying device with uniform heating according to claim 1, characterized in that: The drying component comprises two symmetrically arranged rectangular holes (31) opened inside the connecting plate (2), a rectangular block (29) is slidably connected inside the rectangular hole (31), a connecting rod (15) is fixedly connected to one side of the rectangular block (29), an arc block (8) is fixedly connected to one end of the connecting rod (15), an arc cavity (28) is opened on one side of the arc block (8), and a plurality of heating tubes (27) are embedded inside the arc cavity (28).

4. The 3D printing drying device with uniform heating according to claim 1, characterized in that: The swing assembly comprises a first rack (16) fixedly connected to the top of the sliding plate (19); a gear (25) is fixedly sleeved on the outer wall of the rotating rod (26); the gear (25) is meshed with the first rack (16); a trapezoidal groove (20) is provided on one side of the sliding plate (19); and two symmetrically arranged springs (21) are fixedly connected between the bottom of the sliding plate (19) and the bottom inner wall of the drying box (1).

5. The 3D printing drying device with uniform heating according to claim 2, characterized in that: The outer wall of the rotating shaft (12) is fixedly sleeved with a rotating block (10), and the outer wall of the rotating block (10) is fixedly connected with a plurality of gear teeth (14), the plurality of gear teeth (14) are divided into a plurality of groups, and the plurality of groups of gear teeth (14) are arranged at intervals on the outer wall of the rotating block (10).

6. The 3D printing drying device with uniform heating according to claim 1, characterized in that: A second rack (23) is slidably connected to the inner wall of the bottom of the drying box (1); one end of the second rack (23) is fixedly connected to the inner wall of one side of the drying box (1) by a tension spring (24); the second rack (23) is meshed with the gear teeth (14); a vertical rod (22) is fixedly connected to one side of the top of the second rack (23); a push rod (17) is fixedly connected to the top of one side of the vertical rod (22); one end of the push rod (17) extends to the inside of the trapezoidal groove (20) and is used in conjunction with the trapezoidal groove (20).

7. The 3D printing drying device with uniform heating according to claim 3, characterized in that: The connecting plate (2) is internally rotated through a same bidirectional screw rod (30), the bidirectional screw rod (30) is threadedly passed through two rectangular blocks (29), and one end of the bidirectional screw rod (30) is fixedly connected to an operating block (32).

8. The 3D printing drying device with uniform heating according to claim 1, characterized in that: The four corners of the bottom of the drying box (1) are fixedly connected to support legs (5), one side of the drying box (1) is hinged with a door panel (3), and one side of the door panel (3) is fixedly connected to a handle (7).

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