Double-station 3D printer

Abstract

The double-station 3D printer comprises a box body, a first printing station and a second printing station are arranged on the box body, a first printing execution assembly is arranged on the first printing station, and a second printing execution assembly is arranged on the second printing station; the output end of the first driving assembly is connected with the first printing execution assembly. The output end of the second driving assembly is connected with the second printing execution assembly, and the first printing platform assembly is arranged below the first printing execution assembly. The second printing platform assembly is arranged below the second printing execution assembly; the output end of the first platform driving assembly is connected with the first printing platform assembly, and the first platform driving assembly can drive the first printing platform assembly to move in the third direction; the output end of the second platform driving assembly is connected with the second printing platform assembly, and the second platform driving assembly can drive the second printing platform assembly to move in the third direction. The first printing execution assembly and the second printing execution assembly are independent, synchronous printing of different models can be achieved, the printing efficiency is improved, and the equipment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a dual-station 3D printer. Background Technology

[0002] 3D printing technology, as a rapid prototyping technology, has developed rapidly in recent years and has been widely used in industrial manufacturing, medical, and educational fields. Traditional 3D printers typically employ a single-station design, meaning they can only print one workpiece at a time, resulting in low printing efficiency and difficulty in meeting the demands of mass production. To improve printing efficiency, some researchers have proposed designs for dual-station or even multi-station 3D printers.

[0003] In existing technologies, dual-station 3D printers primarily achieve dual-station printing by setting up two independent printing areas on the printing platform and equipping them with two independent print head systems. However, this design has the following drawbacks: existing dual-station 3D printers can typically only print the same model at the same time, failing to meet the need for printing different models simultaneously. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to propose a novel dual-station 3D printer, which aims to improve printing efficiency, simplify the operation process, and achieve simultaneous printing of different models.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a dual-station 3D printer, comprising:

[0007] The housing has a first printing station and a second printing station. The first printing station is equipped with a first printing execution component, and the second printing station is equipped with a second printing execution component.

[0008] A first driving component, the output of which is connected to the first printing execution component, is capable of driving the first printing execution component to move along a first direction or a second direction respectively;

[0009] The second driving component has its output end connected to the second printing execution component, and is able to drive the second printing execution component to move along the first direction or the second direction respectively;

[0010] The first printing platform component is located below the first printing execution component;

[0011] The second printing platform component is located below the second printing execution component;

[0012] A first platform driving assembly is connected to the first printing platform assembly at an output end and is capable of driving the first printing platform assembly to move in a third direction.

[0013] A second platform driving assembly is connected to the second printing platform assembly at an output end and is capable of driving the second printing platform assembly to move in the third direction.

[0014] Preferably, the first printing execution assembly and the second printing execution assembly are arranged side by side.

[0015] Preferably, the top of the cabinet is provided with a front slide rail and a rear slide rail on the front and rear sides respectively, the front slide rail and the rear slide rail extend in the first direction, the front slide rail is provided with a first front sliding block and a second front sliding block, and the rear slide rail is provided with a first rear sliding block and a second rear sliding block.

[0016] A first slide rail is arranged between the first front sliding block and the first rear sliding block, the first slide rail extends in the second direction, and the first printing execution assembly is slidingly arranged below the first slide rail.

[0017] A second slide rail is arranged between the second front sliding block and the second rear sliding block, the second slide rail extends in the second direction, and the second printing execution assembly is slidingly arranged below the second slide rail.

[0018] The output end of the first driving assembly is connected to the first front sliding block, the first rear sliding block, and the first printing execution assembly.

[0019] The output end of the second driving assembly is connected to the second front sliding block, the second rear sliding block, and the second printing execution assembly.

[0020] Preferably, a first mounting plate is arranged between the first front sliding block and the first rear sliding block, the first slide rail is arranged below the first mounting plate, a first sliding block is slidingly arranged on the first slide rail, and the first printing execution assembly is connected to the first sliding block.

[0021] A second mounting plate is arranged between the second front sliding block and the second rear sliding block, the second slide rail is arranged below the second mounting plate, a second sliding block is slidingly arranged on the second slide rail, and the second printing execution assembly is connected to the second sliding block.

[0022] Preferably, the first driving assembly comprises a first front driving motor, a first rear driving motor, a first belt, a first front driving wheel, a first rear driving wheel, a first front follower wheel, a first rear follower wheel, a first front reversing wheel one, a first front reversing wheel two, a first rear reversing wheel one and a first rear reversing wheel two, an output end of the first front driving motor is connected with the first front driving wheel, an output end of the first rear driving motor is connected with the first rear driving wheel, the first front reversing wheel one and the first front reversing wheel two are arranged on two sides of the first front sliding block respectively, the first rear reversing wheel one and the first rear reversing wheel two are arranged on two sides of the first rear sliding block respectively, the first belt passes through the first front driving wheel, the first front follower wheel, the first front reversing wheel one, the first rear reversing wheel one, the first rear follower wheel, the first rear driving wheel, the first rear reversing wheel two and the first front reversing wheel two in sequence, and the first belt is connected with the first printing execution assembly.

[0023] The second driving assembly comprises a second front driving motor, a second rear driving motor, a second belt, a second front driving wheel, a second rear driving wheel, a second front follower wheel, a second rear follower wheel, a second front reversing wheel one, a second front reversing wheel two, a second rear reversing wheel one and a second rear reversing wheel two, an output end of the second front driving motor is connected with the second front driving wheel, an output end of the second rear driving motor is connected with the second rear driving wheel, the second front reversing wheel one and the second front reversing wheel two are arranged on two sides of the second front sliding block respectively, the second rear reversing wheel one and the second rear reversing wheel two are arranged on two sides of the second rear sliding block respectively, the second belt passes through the second front driving wheel, the second front follower wheel, the second front reversing wheel one, the second rear reversing wheel one, the second rear follower wheel, the second rear driving wheel, the second rear reversing wheel two and the second front reversing wheel two in sequence, and the second belt is connected with the second printing execution assembly.

[0024] Preferably, the first front follower wheel and the second front follower wheel are arranged side by side, the first rear follower wheel and the second rear follower wheel are arranged side by side, and the first front follower wheel and the second front follower wheel are located on two sides of the middle axis of the top of the box respectively, and the first rear follower wheel and the second rear follower wheel are located on two sides of the middle axis respectively.

[0025] Preferably, the first platform driving assembly comprises a first platform driving motor, a first screw rod, a first sliding plate and two first guide rods, an output end of the first platform driving motor is rotationally provided with a first screw rod, the first screw rod is threadedly connected with the first sliding plate, the first screw rod is located between the two first guide rods, the first sliding plate is slidably connected with the first guide rods on two sides, and the first sliding plate is connected with the first printing platform assembly.

[0026] Preferably, the first platform assembly comprises a first connecting frame, a first platform bottom plate is arranged on the first connecting frame, a first adjusting rod is threadedly connected to the bottom of the first connecting frame, the first adjusting rod penetrates through the first connecting frame and the first platform bottom plate, a first platform top plate is rotationally connected to the top of the first adjusting rod, and a spring is arranged between the first platform top plate and the first platform bottom plate and is sleeved on the first adjusting rod.

[0027] Preferably, the first platform driving assembly and the second platform driving assembly are of the same structure, and the first printing platform assembly and the second printing platform assembly are of the same structure.

[0028] Preferably, the top of the box body is provided with a top cover door, and the front side of the box body is provided with a front cover door.

[0029] The utility model discloses a double-station 3D printer, in the first printing station and the second printing station, first printing execution assembly and second printing execution assembly can be driven respectively along the first direction or the second direction by the driving mechanism, and the first printing platform assembly and the second printing platform assembly that can move along the third direction are cooperated to realize printing, and first printing execution assembly and second printing execution assembly are independent, can realize the synchronous printing of different models, improve printing efficiency and reduce equipment cost. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiment of the utility model and these drawings for the ordinary skilled in the art without paying the creative labor.

[0031] Fig. 1 The utility model discloses a double-station 3D printer's structural schematic diagram is provided for the embodiment of the utility model;

[0032] Fig. 2 The utility model discloses a double-station 3D printer's partial structural schematic diagram is provided for the embodiment of the utility model;

[0033] Fig. 3 The utility model discloses a double-station 3D printer's another visual partial structural schematic diagram is provided for the embodiment of the utility model;

[0034] Fig. 4 The utility model discloses a first printing platform assembly's structural schematic diagram is provided for the embodiment of the utility model.

[0035] In the drawing:

[0036] 1, box; 11, first printing station; 12, second printing station; 13, front slide rail; 14, rear slide rail; 15, first front sliding block; 16, first rear sliding block; 17, first mounting plate; 18, second front sliding block; 19, second rear sliding block; 110, second mounting plate; 111, top cover door; 112, front cover door;

[0037] 2, first printing execution assembly;

[0038] 3, second printing execution assembly;

[0039] 4, first drive assembly; 41, first front drive motor; 42, first rear drive motor; 43, first front driving wheel; 44, first rear driving wheel; 45, first front follow-up wheel; 46, first rear follow-up wheel; 471, first front reversing wheel one; 472, first front reversing wheel two; 481, first rear reversing wheel one; 482, first rear reversing wheel two; 49, first belt;

[0040] 5, second drive assembly; 51, second front drive motor; 52, second rear drive motor; 53, second front driving wheel; 54, second rear driving wheel; 55, second front follow-up wheel; 56, second rear follow-up wheel; 571, second front reversing wheel one; 572, second front reversing wheel two; 581, second rear reversing wheel one; 582, second rear reversing wheel two; 59, second belt;

[0041] 6, first platform drive assembly; 61, first platform drive motor; 62, first lead screw; 63, first guide rod; 64, first sliding plate;

[0042] 7, second platform drive assembly;

[0043] 8, first printing platform assembly; 81, first connecting frame; 82, first platform bottom plate; 83, adjusting rod; 84, first platform top plate; 85, spring;

[0044] 9, second printing platform assembly. DETAILED DESCRIPTION

[0045] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be described in further detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0046] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements internal communication or two element interaction relationship.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0047] In the utility model, unless another definite provision and limitation, the second feature in the second feature "on" or "under" can include the second and the second feature direct contact, also can include the second and the second feature is not direct contact but through the contact between other features between them.And, the second feature in the second feature "on", "above" and "on" include the second feature in the second feature directly above and oblique, or just indicate that the second feature horizontal height is higher than the second feature.The second feature in the second feature "under", "below" and "under" include the second feature in the second feature directly below and oblique, or just indicate that the second feature horizontal height is less than the second feature.

[0048] In the description of the embodiment, the terms "on", "under", "left", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "second", "second" are only used to distinguish in the description, and have no special meaning.

[0049] As Figs. 1 to 4The utility model discloses a double -position 3D printer, including: box 1, be provided with first printing position 11 and second printing position 12 on it, preferably, first printing position 11 and second printing position 12 are side by side arrangement, be provided with first printing execution subassembly 2 on first printing position 11, be provided with second printing execution subassembly 3 on second printing position 12, first printing execution subassembly 2 and second printing execution subassembly 3 are side by side arrangement, first drive subassembly 4 is connected first printing execution subassembly 2 in output, can drive first printing execution subassembly 2 respectively along first direction or second direction moves, second drive subassembly 5 is connected second printing execution subassembly 3 in output, can drive second printing execution subassembly 3 respectively along first direction or second direction moves, first printing platform subassembly 8 sets up in the below of first printing execution subassembly 2, second printing platform subassembly 9 sets up in the below of second printing execution subassembly 3, first platform drive subassembly 6 is connected first printing platform subassembly 8 in output, can drive first printing platform subassembly 8 along third direction moves, second platform drive subassembly 7 is connected second printing platform subassembly 9 in output, can drive second printing platform subassembly 9 along third direction moves.

[0050] In the utility model embodiment, the first direction corresponds to the X axis, the second direction corresponds to the Y axis, and the third direction corresponds to the Z axis. The first drive assembly 4 can drive the first printing execution assembly 2 to move along the first direction or the second direction. The first printing execution assembly 2 corresponds to the first printing platform assembly 8. The first platform drive assembly 6 can drive the first printing platform assembly 8 to move along the third direction. The first printing execution assembly 2 and the first printing platform assembly 8 cooperate to realize the movement along three axial directions and complete 3D printing. The second printing execution assembly 3 and the second printing platform assembly 9 use the same principle to complete 3D printing along three axial directions. However, the first printing execution assembly 2 and the second printing execution assembly 3 are independent of each other, can realize the synchronous printing of different models, improve the printing efficiency, and reduce the equipment cost. The first printing execution assembly 2 and the second printing execution assembly 3 are prior art, and details are not repeated here.

[0051] In some embodiments, as Figs. 1 to 3As shown, the top of the box 1 is provided with front and rear slide rails 13 and 14, respectively, the front and rear slide rails 13 and 14 extend along a first direction, the front slide rail 13 is provided with a first front sliding block 15 and a second front sliding block 18, and the rear slide rail 14 is provided with a first rear sliding block 16 and a second rear sliding block 19; a first slide rail (not shown) is arranged between the first front sliding block 15 and the first rear sliding block 16, the first slide rail extends along a second direction, and the first printing execution assembly 2 is slidingly arranged below the first slide rail; a second slide rail (not shown) is arranged between the second front sliding block 18 and the second rear sliding block 19, the second slide rail extends along the second direction, and the second printing execution assembly 3 is slidingly arranged below the second slide rail; the output end of the first driving assembly 4 is connected with the first front sliding block 15, the first rear sliding block 16 and the first printing execution assembly 2; the output end of the second driving assembly 5 is connected with the second front sliding block 18, the second rear sliding block 19 and the second printing execution assembly 3. A first mounting plate 17 is arranged between the first front sliding block 15 and the first rear sliding block 16, the first slide rail is arranged below the first mounting plate 17, a first sliding block (not shown) is slidingly arranged on the first slide rail, and the first printing execution assembly 2 is connected with the first sliding block; a second mounting plate 110 is arranged between the second front sliding block 18 and the second rear sliding block 19, the second slide rail is arranged below the second mounting plate 110, a second sliding block (not shown) is slidingly arranged on the second slide rail, and the second printing execution assembly 3 is connected with the second sliding block.The first driving assembly 4 comprises a first front driving motor 41, a first rear driving motor 42, a first belt 49, a first front driving wheel 43, a first rear driving wheel 44, a first front follower wheel 45, a first rear follower wheel 46, a first front reversing wheel 471, a first front reversing wheel 472, a first rear reversing wheel 481 and a first rear reversing wheel 482. The output end of the first front driving motor 41 is connected to the first front driving wheel 43. The output end of the first rear driving motor 42 is connected to the first rear driving wheel 44. The first front reversing wheel 471 and the first front reversing wheel 472 are arranged on the two sides of the first front sliding block 15 respectively. The first rear reversing wheel 481 and the first rear reversing wheel 482 are arranged on the two sides of the first rear sliding block 16 respectively. The first belt 49 is sequentially wound around the first front driving wheel 43, the first front follower wheel 45, the first front reversing wheel 471, the first rear reversing wheel 481, the first rear follower wheel 46, the first rear driving wheel 44, the first rear reversing wheel 482 and the first front reversing wheel 471. The first belt 49 is connected to the first printing execution assembly 2. The second driving assembly 5 comprises a second front driving motor 51, a second rear driving motor 52, a second belt 59, a second front driving wheel 53, a second rear driving wheel 54, a second front follower wheel 55, a second rear follower wheel 56, a second front reversing wheel 571, a second front reversing wheel 572, a second rear reversing wheel 581 and a second rear reversing wheel 582. The output end of the second front driving motor 51 is connected to the second front driving wheel 53. The output end of the second rear driving motor 52 is connected to the second rear driving wheel 54. The second front reversing wheel 571 and the second front reversing wheel 572 are arranged on the two sides of the second front sliding block 18 respectively. The second rear reversing wheel 581 and the second rear reversing wheel 582 are arranged on the two sides of the second rear sliding block 19 respectively. The second belt 59 is sequentially wound around the second front driving wheel 53, the second front follower wheel 55, the second front reversing wheel 571, the second rear reversing wheel 581, the second rear follower wheel 56, the second rear driving wheel 54, the second rear reversing wheel 582 and the second front reversing wheel 571. The second belt 59 is connected to the second printing execution assembly 3. The first front follower wheel 45 and the second front follower wheel 55 are arranged side by side. The first rear follower wheel 46 and the second rear follower wheel 56 are arranged side by side. With the middle of the top of the box body 1 as a middle axis, the first front follower wheel 45 and the second front follower wheel 55 are respectively located on the two sides of the middle axis. The first rear follower wheel 46 and the second rear follower wheel 56 are respectively located on the two sides of the middle axis.

[0052] Specifically, in the embodiment of the present application, when the rotating directions of the first front driving motor 41 and the first rear driving motor 42 are consistent, the first belt 49 does not pull the first front sliding block 15 and the first rear sliding block 16, at this time, the first front sliding block 15 and the first rear sliding block 16 do not move, that is, the first printing execution assembly 2 only moves along the second direction and does not move along the first direction. When the rotating directions of the first front driving motor 41 and the first rear driving motor 42 are inconsistent, at this time, the first belt 49 pulls the first front sliding block 15 and the first rear sliding block 16, but there is no pulling force of the second direction on the first printing execution assembly 2, at this time, the first front sliding block 15 and the first rear sliding block 16 can move along the first direction, so that the first printing execution assembly 2 moves along the first direction. The principle of the second printing execution assembly 3 is consistent with that of the first printing execution assembly 2, which will not be repeated here.

[0053] In some embodiments, as shown in Figs. 1 to 4 The first platform driving assembly includes a first platform driving motor 61, a first lead screw 62, a first sliding plate 64 and two first guide rods 63. The output end of the first platform driving motor 61 is rotatably provided with the first lead screw 62. The first lead screw 62 is threadedly connected with the first sliding plate 64. The first lead screw 62 is located between the two first guide rods 63. The sliding plate is slidably connected with the first guide rods 63 on both sides. The first sliding plate 64 is connected with the first printing platform assembly 8. Specifically, in the embodiment, the two ends of the first guide rod 63 are respectively connected in the box body 1. The top of the first lead screw 62 is rotatably connected. The first platform driving motor 61 drives the first lead screw 62 to rotate to drive the first sliding plate 64 to move up and down along the third direction, thereby driving the first printing platform assembly 8 to move up and down. The principle of the second printing platform assembly 9 and the second platform driving assembly 7 is consistent with that of the first platform driving assembly 6, which will not be repeated here.

[0054] In some embodiments, as shown in Figs. 1 to 4As shown, the first printing platform assembly 8 comprises a first connecting frame 81, a first platform bottom plate 82 is arranged on the first connecting frame 81, a first adjusting rod 83 is threadedly connected to the bottom of the first connecting frame 81, the first adjusting rod 83 passes through the first connecting frame 81 and the first platform bottom plate 82, a first platform top plate 84 is rotationally connected to the top of the first adjusting rod 83, a spring 85 is arranged between the first platform top plate 84 and the first platform bottom plate 82, and the spring 85 is sleeved on the first adjusting rod 83. Specifically, in the embodiment, the top of the adjusting rod 83 is rotationally connected with the first platform top plate 84, and the first platform top plate 84 can move up and down relative to the adjusting rod 83, and only a cap (not shown in the figure) at the top of the adjusting rod 83 limits the first platform top plate 84 from being separated, the adjusting rod 83 is threadedly connected with the first connecting frame 81, the position of the first platform top plate 84 can be adjusted by screwing the adjusting rod 83 in cooperation with the spring 85, and the tightness of the spring 85 can also be adjusted, and the adjusting rod 83 is provided with four groups arranged at four corners respectively. The first printing platform assembly 8 and the second printing platform assembly 9 are the same in structure, and details are not repeated here.

[0055] In some embodiments, as Fig. 1 As shown, the top of the box body 1 is provided with a top cover door 111, and the front side of the box body 1 is provided with a front cover door 112. By arranging the top cover door 111 and the front cover door 112, the mold can be conveniently taken out after printing, and the installation and maintenance of the whole printer are facilitated. It should be noted that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A dual-station 3D printer, characterized in that, The utility model relates to a kind of printing machine, including: Box (1), first printing station (11) and second printing station (12) are provided on it, first printing execution component (2) is provided on the first printing station (11), second printing execution component (3) is provided on the second printing station (12); First drive assembly (4), its output end connects the first printing execution component (2), can drive the first printing execution component (2) respectively along first direction or second direction moves; Second drive assembly (5), its output end connects the second printing execution component (3), can drive the second printing execution component (3) respectively along first direction or second direction moves; First printing platform assembly (8) is arranged below the first printing execution component (2); Second printing platform assembly (9) is arranged below the second printing execution component (3); First platform drive assembly (6), its output end connects the first printing platform assembly (8), can drive the first printing platform assembly (8) along third direction moves; Second platform drive assembly (7), its output end connects the second printing platform assembly (9), can drive the second printing platform assembly (9) along third direction moves.

2. The dual-station 3D printer of claim 1, wherein, The first printing execution component (2) and the second printing execution component (3) are arranged side by side.

3. The dual-station 3D printer of claim 1, wherein, Front and rear sides of the top of the box (1) are provided with front slide rail (13) and rear slide rail (14) respectively, the front slide rail (13) and the rear slide rail (14) all extend along first direction, the front slide rail (13) is provided with first front sliding block (15) and second front sliding block (18), the rear slide rail (14) is provided with first rear sliding block (16) and second rear sliding block (19); First sliding rail is arranged between the first front sliding block (15) and the first rear sliding block (16), the first sliding rail extends along second direction, the first printing execution component (2) is slidably arranged below the first sliding rail; Second sliding rail is arranged between the second front sliding block (18) and the second rear sliding block (19), the second sliding rail extends along second direction, the second printing execution component (3) is slidably arranged below the second sliding rail; The output end of the first drive assembly (4) connects the first front sliding block (15), first rear sliding block (16) and the first printing execution component (2); The output end of the second drive assembly (5) connects the second front sliding block (18), second rear sliding block (19) and the second printing execution component (3).

4. The dual-station 3D printer of claim 3, wherein, First mounting plate (17) is arranged between the first front sliding block (15) and the first rear sliding block (16), the first sliding rail is arranged below the first mounting plate (17), first sliding block is slidably arranged on the first sliding rail, and the first printing execution component (2) is connected with the first sliding block. Second mounting plate (110) is arranged between the second front sliding block (18) and the second rear sliding block (19), the second slide rail is arranged below the second mounting plate (110), the second sliding block is slidably arranged on the second slide rail, and the second printing execution assembly (3) is connected with the second sliding block.

5. The dual-station 3D printer of claim 4, wherein, The first drive assembly (4) comprises a first front drive motor (41), a first rear drive motor (42), a first belt (49), a first front driving wheel (43), a first rear driving wheel (44), a first front follower (45), a first rear follower (46), a first front reversing wheel (471), a first front reversing wheel (472), a first rear reversing wheel (481) and a first rear reversing wheel (482), the output end of the first front drive motor (41) is connected with the first front driving wheel (43), the output end of the first rear drive motor (42) is connected with the first rear driving wheel (44), the first front reversing wheel (471) and the first front reversing wheel (472) are arranged on the two sides of the first front sliding block (15) respectively, the first rear reversing wheel (481) and the first rear reversing wheel (482) are arranged on the two sides of the first rear sliding block (16) respectively, the first belt (49) is sequentially wound around the first front driving wheel (43), the first front follower (45), the first front reversing wheel (471), the first rear reversing wheel (481), the first rear follower (46), the first rear driving wheel (44), the first rear reversing wheel (482) and the first front reversing wheel (471), and the first belt (49) is connected with the first printing execution assembly (2). The second drive assembly (5) comprises a second front drive motor (51), a second rear drive motor (52), a second belt (59), a second front driving wheel (53), a second rear driving wheel (54), a second front follower (55), a second rear follower (56), a second front reversing wheel (571), a second front reversing wheel (572), a second rear reversing wheel (581) and a second rear reversing wheel (582), the output end of the second front drive motor (51) is connected with the second front driving wheel (53), the output end of the second rear drive motor (52) is connected with the second rear driving wheel (54), the second front reversing wheel (571) and the second front reversing wheel (572) are arranged on the two sides of the second front sliding block (18) respectively, the second rear reversing wheel (581) and the second rear reversing wheel (582) are arranged on the two sides of the second rear sliding block (19) respectively, the second belt (59) is sequentially wound around the second front driving wheel (53), the second front follower (55), the second front reversing wheel (571), the second rear reversing wheel (581), the second rear follower (56), the second rear driving wheel (54), the second rear reversing wheel (582) and the second front reversing wheel (571), and the second belt (59) is connected with the second printing execution assembly (3).

6. The dual-station 3D printer of claim 5, wherein, The first front follow-up wheel (45) and the second front follow-up wheel (55) are arranged side by side, the first rear follow-up wheel (46) and the second rear follow-up wheel (56) are arranged side by side, and the first front follow-up wheel (45) and the second front follow-up wheel (55) are respectively located on both sides of the middle axis of the middle of the top of the box body (1), and the first rear follow-up wheel (46) and the second rear follow-up wheel (56) are respectively located on both sides of the middle axis.

7. The dual-station 3D printer according to any one of claims 1 to 6, characterized in that, The first platform driving assembly (6) comprises a first platform driving motor (61), a first screw rod (62), a first sliding plate (64) and two first guide rods (63), the output end of the first platform driving motor (61) is rotationally provided with the first screw rod (62), the first screw rod (62) is in threaded connection with the first sliding plate (64), the first screw rod (62) is located between the two first guide rods (63), the sliding plate is in sliding connection with the first guide rod (63) on both sides, and the first sliding plate (64) is connected with the first printing platform assembly (8).

8. The dual-station 3D printer of claim 7, wherein, The first printing platform assembly (8) comprises a first connecting frame (81), the first connecting frame (81) is provided with a first platform bottom plate (82), the bottom of the first connecting frame (81) is in threaded connection with a first adjusting rod (83), the first adjusting rod (83) penetrates through the first connecting frame (81) and the first platform bottom plate (82), the top of the first adjusting rod (83) is rotationally connected with a first platform top plate (84), a spring (85) is arranged between the first platform top plate (84) and the first platform bottom plate (82), and the spring (85) is sleeved on the first adjusting rod (83).

9. The dual-station 3D printer of claim 8, wherein, The first platform driving assembly (6) and the second platform driving assembly (7) are the same in structure, and the first printing platform assembly (8) and the second printing platform assembly (9) are the same in structure.

10. The dual-station 3D printer of claim 1, wherein, The top of the box body (1) is provided with a top cover door (111), and the front side of the box body (1) is provided with a front cover door (112).

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