3D printer

Abstract

The utility model relates to a 3D printer which comprises a printer body and a hot bed, a plurality of supporting columns are arranged in the printer body, a plurality of supporting blocks are arranged on the supporting columns, and the hot bed is placed on the supporting blocks. Two sliding grooves are formed in the supporting column, two clamping blocks are slidably connected into each sliding groove, and the two clamping blocks are arranged at the two ends of the supporting column correspondingly. A rotating rod is rotationally connected to the supporting column, two sections of thread lines are arranged on the rotating rod, the thread directions of the two sections of thread lines are opposite, and the two clamping blocks are in threaded connection to the two sections of thread lines correspondingly; a driving mechanism is further arranged in the printer and used for driving the multiple rotating rods to rotate synchronously. The 3D printer has the characteristic that the hot bed is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of printers, and in particular to a 3D printer. Background Technology

[0002] A heated bed is a component in a 3D printer used to heat the printing platform. Its main function is to prevent the printing material from warping due to cooling and shrinkage by heating at a constant temperature, while also improving the adhesion of the first layer of printing.

[0003] Patent application number CN202221185313.5 discloses a heated bed for a 3D printer and a 3D printer. The heated bed is fixed to the printer by the cooperation of a first screw and a connecting column. However, this connection structure makes it relatively troublesome to disassemble, assemble, adjust and fix the heated bed. Utility Model Content

[0004] This application provides a 3D printer with a convenient heated bed that is easy to disassemble and install.

[0005] The 3D printer provided in this application adopts the following technical solution:

[0006] A 3D printer includes a printer body and a heated bed. The printer body contains multiple support columns, each with multiple support blocks. The heated bed is placed on the support blocks. Each support column has two grooves, and two clamping blocks are slidably connected to each groove, with the clamping blocks positioned at opposite ends of the support column. A rotating rod is rotatably connected to each support column, and the rotating rod has two threaded sections with opposite thread directions. The clamping blocks are threadedly connected to the two threaded sections. The printer body also contains a drive mechanism for driving the multiple rotating rods to rotate synchronously.

[0007] By adopting the above technical solution, during the installation of the heated bed, it is first placed on multiple support blocks, at which point the heated bed is positioned between multiple clamping blocks. Then, a drive mechanism rotates multiple rotating rods, causing the clamping blocks, threaded onto the rotating rods, to move closer to the heated bed and ultimately clamp it. When replacing the heated bed, the drive mechanism rotates the multiple rotating rods back, causing the clamping blocks to move away from the heated bed and release its clamping.

[0008] Preferably, the drive mechanism includes multiple gears respectively mounted on multiple rotating rods, an electric cylinder mounted inside the printer body, and a rack mounted on the output shaft of the electric cylinder, wherein the rack meshes with the multiple gears.

[0009] By adopting the above technical solution, when the output shaft of the electric cylinder extends, it drives the rack to move. When the rack moves, it drives multiple gears and multiple rotating rods to rotate forward. When the multiple rotating rods rotate forward, they drive multiple clamping blocks to move closer to the heated bed, so that the multiple clamping blocks can clamp and fix the heated bed.

[0010] Preferably, a T-shaped groove is provided on the output shaft of the electric cylinder, with the groove opening facing upwards, and a T-shaped block is provided on the end of the rack, with the T-shaped block inserted into the T-shaped groove.

[0011] By adopting the above technical solution, the connection between the electric cylinder output shaft and the rack is facilitated.

[0012] Preferably, the printer body has a support plate with multiple mounting slots, and multiple support columns are respectively inserted into the multiple mounting slots; each support column has a first connecting part, and each mounting slot has a second connecting part, the first connecting part and the second connecting part cooperate to prevent the support column from detaching from the mounting slot.

[0013] By adopting the above technical solution, the support columns can be installed into different mounting slots according to the requirements, thereby changing the distance between the support columns and thus changing the clamping range of the multiple clamping blocks, so that the multiple clamping blocks can clamp hot beds of different specifications.

[0014] Preferably, the first connecting part is a first screw, and the second connecting part is a threaded hole on the bottom wall with a mounting groove. The first screw is threaded into the threaded hole, thereby pressing the support column against the mounting groove.

[0015] By adopting the above technical solution, the stability of the connection between the support column and the installation groove is ensured.

[0016] Preferably, the bottom wall of the mounting groove is provided with an insert block, the support column is provided with a slot, the insert block and the slot are inserted into each other, and the threaded hole is opened on the top surface of the insert block; the support column is provided with a countersunk hole, the countersunk hole is directly opposite the threaded hole, and the first screw is inserted into the countersunk hole.

[0017] By adopting the above technical solution, the countersunk hole and the threaded hole are automatically aligned when the support column is inserted into the slot, making it convenient to screw the first screw through the countersunk hole into the threaded hole.

[0018] Preferably, the support column is provided with multiple second screws, which are equidistantly distributed along the length of the support column. Multiple support blocks are threadedly connected to the multiple second screws, and the height of the support blocks can be adjusted by rotating the support blocks.

[0019] By adopting the above technical solution, the height of the support blocks can be adjusted, thereby adjusting the level of the heated bed placed on multiple support blocks and improving the quality of product printing.

[0020] The main technical effects of this utility model are reflected in the following aspects:

[0021] 1. This utility model achieves synchronous rotation of multiple rotating rods through a gear and rack structure, controlling the coordinated movement of the clamping blocks;

[0022] 2. The support column of this utility model can be installed in a different position to adapt to the clamping requirements of hot beds of different specifications;

[0023] 3. This utility model can adjust the height of the support blocks, thereby adjusting the level of the heated bed placed on multiple support blocks and improving the quality of product printing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the printer's structure.

[0025] Figure 2 It is a structural diagram of components such as support plates and support columns.

[0026] Figure 3 yes Figure 2 A cross-sectional view of components such as the central support plate along line AA.

[0027] Figure 4 yes Figure 3 A magnified view of a section at point B.

[0028] Figure 5 This is a schematic diagram of the electric cylinder and rack.

[0029] Reference numerals: 1. Printer body; 11. Support plate; 12. Mounting slot; 13. Insert block; 2. Heated bed; 3. Support column; 31. Slide groove; 32. Clamping block; 33. Rotating rod; 34. Threaded wire; 35. Countersunk hole; 36. Second screw; 37. Slot; 4. Support block; 5. Drive mechanism; 51. Gear; 52. Electric cylinder; 53. Rack; 61. T-slot; 62. T-block; 7. First connecting part; 71. First screw; 8. Second connecting part; 81. Threaded hole. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present application can be more easily understood and mastered.

[0031] Reference Figure 1 and Figure 2 This embodiment of a 3D printer includes a printer body 1 and a heated bed 2. The printer body 1 has a support plate 11 with six mounting slots 12. The printer body 1 also has three support columns 3, which are inserted into the mounting slots 12.

[0032] Reference Figure 3 and Figure 4 The mounting groove 12 contains multiple integrally formed insert blocks 13, and the bottom of the support column 3 has multiple slots 37, into which the insert blocks 13 are inserted. The support column 3 has multiple countersunk holes 35, which are connected to the multiple slots 37 respectively.

[0033] Reference Figure 3 and Figure 4 The support column 3 is provided with a first connecting part 7, which is a first screw 71 inserted into a plurality of countersunk holes 35. The mounting groove 12 is provided with a second connecting part 8, which is a plurality of threaded holes 81 opened on a plurality of insert blocks 13. The plurality of first screws 71 are threaded into the plurality of threaded holes 81, thereby pressing the support column 3 against the mounting groove 12.

[0034] Reference Figure 3 and Figure 4 Multiple second screws 36 are fixed to the top of the support column 3, and these screws 36 are evenly distributed along the length of the support column 3. Each of the second screws 36 is threaded with a support block 4, and the height of the support block 4 can be adjusted by rotating the support block 4. The heated bed 2 is placed on the multiple support blocks 4.

[0035] Reference Figure 2 and Figure 3 The support column 3 has sliding grooves 31 at both ends, and two clamping blocks 32 are slidably connected in each groove 31 along the length of the support column 3. The two clamping blocks 32 are respectively located at both ends of the support column 3. A rotating rod 33 is rotatably connected to the support column 3, and the rotating rod 33 extends into the two sliding grooves 31. The rotating rod 33 has two threaded lines 34 with opposite thread directions. The two ends of the threaded lines 34 are located in the two sliding grooves 31, and the two clamping blocks 32 are threadedly connected to the two threaded lines 34 respectively.

[0036] Reference Figure 1 and Figure 5 The printer body 1 also includes a drive mechanism 5, which drives three rotating rods 33 to rotate synchronously. The drive mechanism 5 includes three gears 51 fixed to the three rotating rods 33, an electric cylinder 52 installed inside the printer body 1, and a rack 53 mounted on the output shaft of the electric cylinder 52. The rack 53 meshes with the three gears 51. A T-slot 61 is formed on the output shaft of the electric cylinder 52, with the opening of the T-slot 61 facing upwards. A T-block 62 is provided at the end of the rack 53, and the T-block 62 is inserted into the T-slot 61.

[0037] Reference 1- Figure 5During installation of the heated bed 2, first adjust the support blocks 4 so that they are at the same height. Then, place the heated bed 2 on the support blocks 4, positioning it between the clamping blocks 32. Next, the output shaft of the electric cylinder 52 extends, driving the rack 53 to move. The rack 53 then drives three gears 51 to rotate synchronously, which in turn drives three rotating rods 33 to rotate synchronously. This drives the clamping blocks 32 to move closer to the heated bed 2 and ultimately clamp and fix it in place. When disassembling the heated bed 2, the output shaft of the electric cylinder 52 retracts, controlling the clamping blocks 32 to move away from the heated bed 2, thus releasing the clamping and fixing of the heated bed 2.

[0038] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A 3D printer, comprising a printer body (1) and a heated bed (2), characterized in that: The printer body (1) is provided with multiple support columns (3), and multiple support blocks (4) are provided on the support columns (3). The heated bed (2) is placed on the multiple support blocks (4). Two sliding grooves (31) are opened on the support columns (3). Two clamping blocks (32) are slidably connected in the two sliding grooves (31). The two clamping blocks (32) are respectively located at both ends of the support column (3). A rotating rod (33) is rotatably connected to the support column (3). Two threaded lines (34) are provided on the rotating rod (33). The threaded directions of the two threaded lines (34) are opposite. The two clamping blocks (32) are respectively threadedly connected to the two threaded lines (34). The printer body (1) is also provided with a drive mechanism (5). The drive mechanism (5) is used to drive the multiple rotating rods (33) to rotate synchronously.

2. A 3D printer according to claim 1, characterized in that: The drive mechanism (5) includes multiple gears (51) respectively disposed on multiple rotating rods (33), an electric cylinder (52) disposed in the printer body (1), and a rack (53) disposed on the output shaft of the electric cylinder (52), wherein the rack (53) meshes with the multiple gears (51).

3. A 3D printer according to claim 2, characterized in that: The output shaft of the electric cylinder (52) is provided with a T-shaped groove (61) with the groove opening facing upwards. The end of the rack (53) is provided with a T-shaped block (62) and the T-shaped block (62) is inserted into the T-shaped groove (61).

4. A 3D printer according to claim 1, characterized in that: The printer body (1) is provided with a support plate (11), and the support plate (11) is provided with multiple mounting slots (12). Multiple support columns (3) are respectively inserted into the multiple mounting slots (12). The support column (3) is provided with a first connecting part (7), and the mounting slot (12) is provided with a second connecting part (8). The first connecting part (7) and the second connecting part (8) cooperate to restrict the support column (3) from disengaging from the mounting slot (12).

5. A 3D printer according to claim 4, characterized in that: The first connecting part (7) is a first screw (71), and the second connecting part (8) is a threaded hole (81) on the bottom wall of the mounting groove (12). The first screw (71) is threaded into the threaded hole (81) so as to press the support column (3) against the mounting groove (12).

6. A 3D printer according to claim 5, characterized in that: The mounting groove (12) has a plug (13) on its bottom wall and a slot (37) on its support column (3). The plug (13) and the slot (37) are plugged in and engaged. The threaded hole (81) is opened on the top surface of the plug (13). The support column (3) has a countersunk hole (35) which is directly opposite the threaded hole (81). The first screw (71) is inserted into the countersunk hole (35).

7. A 3D printer according to claim 1, characterized in that: The support column (3) is provided with multiple second screws (36), which are equidistantly distributed along the length of the support column (3). Multiple support blocks (4) are threaded onto the multiple second screws (36). The height of the support blocks (4) can be adjusted by rotating the support blocks (4).

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