3D printing system, printer and post-processing device

By introducing an automated transport mechanism and integrated post-processing functions into the 3D printing system, the problem of manual operation in existing photopolymer 3D printing systems has been solved, achieving automated transport and efficient production of the printing platform.

CN223918694UActive Publication Date: 2026-02-17SHINING 3D TECH CO LTD
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Patent Information

Application Number
CN202520537950.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-17
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing photopolymer 3D printing systems require manual movement of the printing platform to the post-processing unit after printing, which wastes labor costs and reduces production efficiency, failing to meet the needs of automated production.

Method used

Design a 3D printing system including a printer and a post-processing unit. The system achieves automated transfer of the printing platform through a transfer mechanism, utilizes first and second drive components to move in the vertical and horizontal directions respectively, and integrates post-processing functions such as automatic part removal, cleaning, drying and curing to simplify the post-processing process.

Benefits of technology

It enables automated transmission of the printing platform, reduces production costs, improves work efficiency, simplifies post-processing, reduces manual labor, and enhances equipment integration and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of 3D printing, and discloses a 3D printing system, a printer and a post-processing device. The 3D printing system comprises a printer and a post-processing device, the printer comprises a printer body, a conveying mechanism arranged on the printer body and a printing platform arranged on the conveying mechanism, and the conveying mechanism is arranged between the printer and the post-processing device. The transmission mechanism is used for driving the printing platform to move in the vertical direction and driving the printing platform to move between the printer and the post-processing device. In the working process, the conveying mechanism drives the printing platform to move in the vertical direction so that printed pieces can be synchronously printed on the bottom of the printing platform, after printing is completed, the conveying mechanism drives the printing platform to move to the post-processing device from the printing station, and the printed pieces on the printing platform are conveyed to the post-processing device for post-processing. Automatic transmission of the printing platform is achieved, the production cost is reduced, and the working efficiency is improved.
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Description

Technical Field

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

[0002] Existing photopolymer 3D printing systems typically have only one Z-axis travel for platform printing. However, with the development of photopolymer 3D printing equipment, more post-processing functions will be integrated, such as automatic part removal, automatic cleaning, and automatic curing. However, with existing printing equipment, after the 3D printing system finishes printing, the printing platform needs to be manually moved to other post-processing mechanisms for post-processing, which wastes labor costs and reduces production efficiency, failing to meet the needs of automated production.

[0003] Therefore, there is an urgent need for a 3D printing system, printer, and post-processing device to solve the aforementioned problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a 3D printing system, printer and post-processing device, which realizes automated transmission of the printing platform, reduces production costs and improves work efficiency.

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

[0006] In a first aspect, a 3D printing system is provided, including a printer and a post-processing device. The printer includes a printer body, a transmission mechanism disposed on the printer body, and a printing platform disposed on the transmission mechanism. The transmission mechanism is disposed between the printer and the post-processing device, and is used to drive the printing platform to move in a vertical direction and to drive the printing platform to move between the printer and the post-processing device.

[0007] As a preferred technical solution for a 3D printing system, the transmission mechanism includes a first driving component and a second driving component. The second driving component is connected to the first driving component, the first driving component is connected to the printing platform, and the second driving component is connected to the printer body. One of the second driving component and the first driving component is used to drive the printing platform to move in the vertical direction, and the other is used to drive the printing platform to move between the printer and the post-processing device.

[0008] As a preferred technical solution for a 3D printing system, one of the first driving component and the second driving component drives the printing platform to move vertically, while the other drives the printing platform to move linearly or rotate horizontally.

[0009] As a preferred technical solution for a 3D printing system, the first driving component includes a first mounting base, a first driving member, and a first lead screw. The first mounting base is mounted on the second driving component, the first driving member and the first lead screw are mounted on the first mounting base, the first driving member and the first lead screw are connected in a transmission manner, and the first lead screw is screwed to the printing platform.

[0010] As a preferred technical solution for a 3D printing system, the first drive component further includes a first guide component, which is mounted on the first mounting base and guided to the printing platform. The first guide component is used to guide the movement of the printing platform along the extension direction of the first lead screw.

[0011] As a preferred technical solution for a 3D printing system, the first guide component includes two first guide rails and two first sliders. The first guide rails are mounted on the first mounting base, and the extension direction of the first guide rails is the same as the extension direction of the first lead screw. The two first guide rails are disposed on both sides of the first lead screw, and the two first sliders are connected to the printing platform, and the two first sliders are slidably connected to the two first guide rails respectively.

[0012] As a preferred technical solution for a 3D printing system, the second drive assembly includes a second mounting base, a second drive component, and a second lead screw. The second mounting base is mounted on the printer body, the second drive component and the second lead screw are mounted on the second mounting base, the second drive component and the second lead screw are connected in a transmission manner, the second lead screw is screwed to the first mounting base, and one of the first lead screw and the second lead screw is set vertically and the other is set horizontally.

[0013] As a preferred technical solution for a 3D printing system, the second drive component further includes a second guide component, which is mounted on the second mounting base and guided to the printing platform. The second guide component is used to guide the movement of the second mounting base along the extension direction of the second lead screw.

[0014] As a preferred technical solution for a 3D printing system, the second guide component includes two second guide rails and two second sliders. The second guide rails are mounted on the second mounting base, and the extension direction of the second guide rails is the same as the extension direction of the second lead screw. The two second guide rails are disposed on both sides of the second lead screw. The two second sliders are connected to the first mounting base, and the two second sliders are slidably connected to the two second guide rails respectively.

[0015] As a preferred technical solution for a 3D printing system, the printer further includes a first limiting device, which is used to limit the horizontal movement of the printing platform to the printing station.

[0016] As a preferred technical solution for a 3D printing system, the post-processing device includes a post-processing body and a processing chamber and a separation mechanism disposed in the post-processing body, wherein the processing chamber has an opening;

[0017] The separation mechanism is used to separate the printed parts on the printing platform from the printing platform and allow them to enter the processing chamber through the opening.

[0018] As a preferred technical solution for a 3D printing system, the post-processing device further includes a support component disposed in the processing chamber for carrying the printed part and a cleaning component disposed in the post-processing body, wherein the cleaning component is used to apply cleaning material to the surface of the printed part.

[0019] As a preferred technical solution for a 3D printing system, the post-processing device further includes a drying component disposed on the post-processing machine body. The drying component is used to provide hot air to the processing chamber to dry the printed parts.

[0020] As a preferred technical solution for a 3D printing system, the post-processing device further includes a curing component disposed in the processing chamber, the curing component being used to photocur the printed part.

[0021] As a preferred technical solution for a 3D printing system, the post-processing device further includes a second limiting device disposed on the post-processing body, the second limiting device being used to limit the movement of the printing platform above the opening.

[0022] Secondly, a printer is provided for use in any of the above-described 3D printing systems, including a printer body, a transmission mechanism disposed on the printer body, and a printing platform disposed on the transmission mechanism, wherein the transmission mechanism is used to drive the printing platform to move in a vertical direction and to drive the printing platform to move between the printer and a post-processing device.

[0023] Thirdly, a post-processing device is provided for use in any of the above-described 3D printing systems, including a post-processing body, a transmission mechanism disposed on the post-processing body, and a printing platform disposed on the transmission mechanism, wherein the transmission mechanism is used to drive the printing platform to move in a vertical direction and to drive the printing platform to move between the post-processing device and the printer.

[0024] The beneficial effects of this utility model are as follows:

[0025] This utility model provides a 3D printing system, a printer, and a post-processing device. During operation, the transmission mechanism drives the printing platform to move vertically at the printing station of the printer, so that the printed parts can be printed synchronously on the bottom of the printing platform. After printing is completed, the transmission mechanism drives the printing platform from the printer to the post-processing device, and transfers the printed parts on the printing platform to the post-processing device for post-processing. This realizes the automated transmission of the printing platform, reduces production costs, and improves work efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the 3D printing system provided in a specific embodiment of this utility model;

[0028] Figure 2 This is a partial structural schematic diagram of the 3D printing system provided in a specific embodiment of this utility model;

[0029] Figure 3 This is a partial exploded view of the 3D printing system provided in a specific embodiment of this utility model.

[0030] The markings in the image are as follows:

[0031] 100. Printer; 1001. Printing station;

[0032] 1. Printer body;

[0033] 2. Transmission mechanism; 21. First drive assembly; 211. First mounting base; 2111. Second mounting hole; 212. First drive component; 213. First lead screw; 214. First nut; 215. First guide rail; 216. First slider;

[0034] 22. Second drive assembly; 221. Second drive component; 2211. Drive motor; 2212. Coupling; 222. Second lead screw; 223. Second nut; 224. Second mounting base; 225. Second guide rail; 226. Second slider;

[0035] 3. Printing platform; 31. Printing block; 311. Printing surface; 312. Positioning groove; 32. Cantilever; 33. Fixing base; 331. First mounting hole;

[0036] 200, Post-processing device; 2001, Opening. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] like Figure 1As shown, this embodiment provides a 3D printing system, which includes a printer 100 and a post-processing device 200. The printer 100 includes a printer body 1, a transmission mechanism 2 disposed on the printer body 1, and a printing platform 3 disposed on the transmission mechanism 2. The printer 100 is disposed between the printer 100 and the post-processing device 200. The transmission mechanism 2 is used to drive the printing platform 3 to move in the vertical direction and to drive the printing platform 3 to move between the printer 100 and the post-processing device 200.

[0042] During operation, the transmission mechanism 2 drives the printing platform 3 to move vertically at the printing station 1001 of the printer 100, so that the printed parts can be printed synchronously on the bottom of the printing platform 3. After printing is completed, the transmission mechanism 2 drives the printing platform 3 from the printer 100 to the post-processing device 200, and transfers the printed parts on the printing platform 3 to the post-processing device 200 for post-processing. This realizes the automated transmission of the printing platform 3, reduces production costs, and improves work efficiency.

[0043] In this embodiment, as Figures 1-3 As shown, the transmission mechanism 2 includes a first drive component 21 and a second drive component 22. The second drive component 22 is connected to the first drive component 21, the first drive component 21 is connected to the printing platform 3, and the second drive component 22 is connected to the printer body 1. One of the two drive components, the second drive component 22 and the first drive component 21, is used to drive the printing platform 3 to move vertically, and the other is used to drive the printing platform 3 to move between the printer 100 and the post-processing device 200. Specifically, one of the first drive component 21 and the second drive component 22 drives the printing platform 3 to move vertically so that the bottom of the printing platform 3 can print the printed parts, while the other drives the printing platform 3 to move linearly or rotate horizontally, both of which can realize the automated transmission of the printing platform 3.

[0044] In this embodiment, the first driving assembly 21 includes a first mounting base 211, a first driving member 212, and a first lead screw 213. The first mounting base 211 is mounted on the second driving assembly 22, and the first driving member 212 and the first lead screw 213 are mounted on the first mounting base 211. The first driving member 212 and the first lead screw 213 are connected in a transmission manner, and the first lead screw 213 is screwed to the printing platform 3. When the first driving member 212 drives the first lead screw 213 to rotate, the first lead screw 213 drives the printing platform 3 to move along the extension direction of the first lead screw 213.

[0045] Preferably, the first drive assembly 21 further includes a first guide component, which is mounted on the first mounting base 211 and guided to the printing platform 3. The first guide component is used to provide guidance for the movement of the printing platform 3 along the extension direction of the first lead screw 213, thereby improving the movement accuracy of the printing platform 3 along the extension direction of the first lead screw 213.

[0046] Specifically, the first guide component includes two first guide rails 215 and two first sliders 216. The first guide rails 215 are mounted on the first mounting base 211, and the extending direction of the first guide rails 215 is the same as the extending direction of the first lead screw 213. The two first guide rails 215 are located on both sides of the first lead screw 213. The two first sliders 216 are connected to the printing platform 3, and the two first sliders 216 are slidably connected to the two first guide rails 215 respectively. In this embodiment, the two first sliders 216 are connected to the printing platform 3, and the first guide rails 215 can be fixed to the first mounting base 211 by screws. The printing platform 3 is slidably connected to the first mounting base 211 through the cooperation of the two first guide rails 215 and the two first sliders 216, which improves the movement accuracy and connection strength of the printing platform 3.

[0047] Furthermore, the printing platform 3 includes a printing block 31, a cantilever 32, and a fixed base 33. The fixed base 33 is connected to the output end of the first drive assembly 21. One end of the cantilever 32 is connected to the fixed base 33, and the other end is connected to the printing block 31. The bottom of the printing block 31 is provided with a printing surface 311. In this embodiment, the fixed base 33 is provided with a first mounting hole 331. A first nut 214 is installed in the first mounting hole 331, and a first lead screw 213 is threaded to the first nut 214, realizing the screw connection between the first lead screw 213 and the printing platform 3. The printing block 31, the cantilever 32, and the fixed base 33 can be connected by screws. Preferably, the top of the printing block 31 is provided with a positioning groove 312, which extends along the extension direction of the cantilever 32. The end of the cantilever 32 extends into and connects to the positioning groove 312, improving assembly convenience and assembly accuracy.

[0048] Furthermore, the second drive assembly 22 includes a second mounting base 224, a second drive member 221, and a second lead screw 222. The second mounting base 224 is mounted on the printer body 1. The second drive member 221 and the second lead screw 222 are mounted on the second mounting base 224 and are connected in a transmission manner. The second lead screw 222 is screwed to the first mounting base 211. One of the first lead screw 213 and the second lead screw 222 is vertically arranged, and the other is horizontally arranged. When the second drive member 221 drives the second lead screw 222 to rotate, the second lead screw 222 threadedly drives the first mounting base 211 to move along the extension direction of the second lead screw 222, thereby driving the printing platform 3 to move along the extension direction of the second lead screw 222.

[0049] In this embodiment, the second mounting base 224 can be fixed to the printer body 1 with screws, and the stability of the second lead screw 222 is improved by setting the second mounting base 224. The first mounting base 211 is provided with a second mounting hole 2111 on the side near the second drive assembly 22. The second nut 223 is installed in the second mounting hole 2111, and the second lead screw 222 is threaded to the second nut 223, realizing the screw connection between the second lead screw 222 and the first mounting base 211.

[0050] Preferably, the second drive assembly 22 further includes a second guide component, which is mounted on the second mounting base 224 and guided to the printing platform 3. The second guide component is used to guide the movement of the second mounting base 224 along the extension direction of the second lead screw 222, thereby improving the movement accuracy of the printing platform 3 along the extension direction of the second lead screw 222.

[0051] Specifically, the second guide component includes two second guide rails 225 and two second sliders 226. The second guide rails 225 are mounted on the second mounting base 224, and their extension direction is the same as that of the second lead screw 222. The two second guide rails 225 are located on both sides of the second lead screw 222. The two second sliders 226 are connected to the first mounting base 211, and are slidably connected to the two second guide rails 225 respectively. In this embodiment, the second guide rails 225 can be fixed to the second mounting base 224 with screws. The first mounting base 211 is slidably connected to the second mounting base 224 through the two first guide rails 215 and the two first sliders 216, which improves the movement accuracy and connection strength of the printing platform 3 along the extension direction of the second lead screw 222.

[0052] In this embodiment, the first lead screw 213 is vertically arranged. When the printing platform 3 moves along the extension direction of the first lead screw 213, the printing platform 3 is raised and lowered, facilitating the formation of the printed part at the bottom of the printing platform 3. The second lead screw 222 is horizontally arranged. When the printing platform 3 moves along the extension direction of the second lead screw 222, the printed part is adhered to the bottom of the printing platform 3 and transported to the other end of the second lead screw 222 for subsequent processing, thereby realizing automated 3D printing transportation operations.

[0053] In this embodiment, the second driving component 221 includes a drive motor 2211 and a coupling 2212. Both the drive motor 2211 and the coupling 2212 are mounted on the second mounting base 224. The drive motor 2211 is rotatably connected to the second lead screw 222 via the coupling 2212. The mounting bases for the drive motor 2211 and the coupling 2212 can be fixed to the second mounting base 224 with screws.

[0054] Of course, in other embodiments, the second drive component 22 can drive the first drive component 21 to rotate in a horizontal plane. The second drive component 22 can be implemented using a robotic arm to drive the first drive component 21 to rotate in a horizontal plane. Alternatively, the second drive component 22 may include a motor and a turntable, with the turntable disposed at the output end of the motor, the first drive component 21 disposed on the turntable, and the motor driving the turntable to rotate. The structure of the motor and the turntable enables the first drive component 21 to rotate in a horizontal plane.

[0055] It should be noted that the printer 100 also includes a light source system, a material cartridge, and a control system. The material cartridge is located below the printing station 1001 and is made of a translucent material. The light source system is located below the material cartridge. During printing on the printing platform 3, the printing platform 3 is situated within the printing material in the material cartridge. The bottom of the material cartridge is translucent, and the light source system emits light that passes through the material cartridge to expose the bottom of the printing platform 3, causing a print layer to be printed on the bottom of the printing platform 3. As the first drive component 21 drives the printing platform 3 to slowly rise, the bottom of the printing platform 3 prints the printed part. The control system controls the operation of the first drive component 21, the second drive component 22, the light source system, and other structures, realizing automated generation of printed parts and automated transport of the printing platform 3.

[0056] Preferably, the printer 100 further includes a first limiting device, which provides a limit when the printing platform 3 moves horizontally to the printing station 1001, wherein the printing station 1001 is located above and opposite the material box. The first limiting device can be a mechanical limit or a photoelectric switch can be used to precisely control the position of the printing platform 3 at the printing station 1001.

[0057] In this embodiment, as Figure 1 and Figure 2 As shown, the post-processing device 200 includes a post-processing body, a processing chamber, and a separation mechanism disposed within the post-processing body. The processing chamber has an opening 2001. The separation mechanism is used to separate the printed parts from the printing platform 3 and allow them to enter the processing chamber through the opening 2001. This post-processing device 200 integrates the processing chamber and the separation mechanism onto the post-processing body, resulting in a compact overall structure with minimal space requirements, facilitating easy disassembly and relocation. During operation, the printed parts, after separating from the printing platform 3, naturally fall into the processing chamber, eliminating the need for manual removal and placement of the printed parts from the printing platform 3, thus simplifying the post-processing process and reducing manual labor. In this embodiment, the post-processing body and the printer body 1 are integrally formed, and the printer 100 and the post-processing device 200 are arranged side-by-side.

[0058] The post-processing unit 200 also includes a second limiting device disposed on the post-processing body. The second limiting device is used to limit the movement of the printing platform 3 above the opening 2001. The second limiting device can be a mechanical limit or a photoelectric switch to precisely control the printing platform 3 to be above the opening 2001.

[0059] The post-processing unit 200 also includes a carrier assembly disposed within the processing chamber for carrying the printed parts, and a cleaning assembly disposed within the post-processing body. The cleaning assembly applies cleaning material to the surface of the printed parts. After separation, the printed parts are carried on the carrier assembly, and the cleaning assembly applies cleaning material to the surface of the printed parts located on the carrier assembly to clean residual resin from the surface of the printed parts.

[0060] The post-processing unit 200 also includes a drying assembly disposed in the post-processing unit, which provides hot air to the processing chamber to dry the printed parts.

[0061] The post-processing unit 200 also includes a curing component disposed in the processing chamber, which is used to photocur the printed parts.

[0062] In summary, the post-processing device 200 includes at least one of the following integrated into the post-processing body: a separation mechanism, a support component, a cleaning component, a drying component, and a curing component. It can achieve one or more functions of automatic material removal, automatic cleaning, automatic drying, and automatic curing within a single main body space. This not only simplifies the post-processing of printed parts but also features a compact structure, small footprint, and low manufacturing cost. It overcomes many shortcomings of commercially available printed parts, freeing up users' hands and making the post-processing workflow of photopolymer 3D printing more convenient. It should be noted that the automatic setting can be disabled, allowing for multiple processes to be handled within a single main body space.

[0063] In this embodiment, the 3D printing system integrates the printer 100 and the post-processing device 200 together, which simplifies the equipment structure, reduces the equipment size, reduces design difficulty, and reduces equipment cost.

[0064] This embodiment also provides a printer 100, which is applied to the above-mentioned 3D printing system. The printer 100 includes a printer body 1, a transmission mechanism 2 disposed on the printer body 1, and a printing platform 3 disposed on the transmission mechanism 2. The transmission mechanism 2 is used to drive the printing platform 3 to move in the vertical direction and to drive the printing platform 3 to move between the printer 100 and the post-processing device 200.

[0065] This embodiment also provides a post-processing device 200, which is applied to the above-mentioned 3D printing system. The post-processing device 200 includes a post-processing body, a transmission mechanism 2 disposed on the post-processing body, and a printing platform 3 disposed on the transmission mechanism 2. The transmission mechanism 2 is used to drive the printing platform 3 to move in the vertical direction and to drive the printing platform 3 to move between the post-processing device 200 and the printer 100.

[0066] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A 3D printing system, characterized by, The printer and the post-processing device, the printer comprises a printer body (1), a transmission mechanism (2) arranged on the printer body (1) and a printing platform (3) arranged on the transmission mechanism (2), the transmission mechanism (2) is arranged between the printer and the post-processing device, and the transmission mechanism (2) is used to drive the printing platform (3) to move in the vertical direction and to move between the printer and the post-processing device.

2. The 3D printing system of claim 1, wherein, The transmission mechanism (2) comprises a first driving assembly (21) and a second driving assembly (22), the second driving assembly (22) is connected with the first driving assembly (21), the first driving assembly (21) is connected with the printing platform (3), the second driving assembly (22) is connected with the printer body (1), one of the second driving assembly (22) and the first driving assembly (21) is used to drive the printing platform (3) to move in the vertical direction, and the other is used to drive the printing platform (3) to move between the printer and the post-processing device.

3. The 3D printing system of claim 2, wherein, One of the first driving assembly (21) and the second driving assembly (22) drives the printing platform (3) to move in the vertical direction, and the other drives the printing platform (3) to move linearly or rotate in the horizontal direction.

4. The 3D printing system of claim 2, wherein, The first driving assembly (21) comprises a first mounting seat (211), a first driving member (212) and a first screw rod (213), the first mounting seat (211) is mounted on the second driving assembly (22), the first driving member (212) and the first screw rod (213) are mounted on the first mounting seat (211), the first driving member (212) is in transmission connection with the first screw rod (213), and the first screw rod (213) is in screw connection with the printing platform (3).

5. The 3D printing system of claim 4, wherein, The first driving assembly (21) further comprises a first guide component, the first guide component is mounted on the first mounting seat (211), the first guide component is in guide connection with the printing platform (3), and the first guide component is used to guide the movement of the printing platform (3) in the extension direction of the first screw rod (213).

6. The 3D printing system of claim 5, wherein, The first guide component comprises two first guide rails (215) and two first sliding blocks (216), the first guide rails (215) are mounted on the first mounting seat (211), the extension direction of the first guide rails (215) is the same as that of the first screw rod (213), the two first guide rails (215) are arranged on the two sides of the first screw rod (213), and the two first sliding blocks (216) are connected with the printing platform (3) and are in sliding connection with the two first guide rails (215) respectively.

7. The 3D printing system of claim 4, wherein, The second driving assembly (22) comprises a second mounting base (224), a second driving member (221) and a second screw rod (222), the second mounting base (224) is mounted on the printer body (1), the second driving member (221) and the second screw rod (222) are mounted on the second mounting base (224), the second driving member (221) is in transmission connection with the second screw rod (222), one of the first mounting base (211) and the second screw rod (222) is vertically arranged, and the other is horizontally arranged.

8. The 3D printing system of claim 7, wherein, The second driving assembly (22) further comprises a second guiding component, the second guiding component is mounted on the second mounting base (224), the second guiding component is in guiding connection with the printing platform (3), and the second guiding component is used for guiding the movement of the second mounting base (224) along the extension direction of the second screw rod (222).

9. The 3D printing system of claim 8, wherein, The second guiding component comprises two second guide rails (225) and two second sliding blocks (226), the second guide rails (225) are mounted on the second mounting base (224), the extension direction of the second guide rails (225) is the same as the extension direction of the second screw rod (222), and the two second guide rails (225) are arranged on the two sides of the second screw rod (222), and the two second sliding blocks (226) are connected with the first mounting base (211) and are in sliding connection with the two second guide rails (225) respectively.

10. The 3D printing system of claim 1, wherein, The printer further comprises a first limiting device, and the first limiting device is used for limiting the horizontal movement of the printing platform (3) to the printing station (1001).

11. The 3D printing system of claim 1, wherein, The post-processing device comprises a post-processing body, a processing chamber and a separation mechanism arranged on the post-processing body, the processing chamber has an opening (2001); The separation mechanism is used for separating the printed product on the printing platform (3) from the printing platform (3) and entering the processing chamber through the opening (2001).

12. The 3D printing system of claim 11, wherein, The post-processing device further comprises a bearing assembly arranged in the processing chamber and used for bearing the printed product, and a cleaning assembly arranged on the post-processing body, the cleaning assembly is used for applying cleaning material to the surface of the printed product.

13. The 3D printing system of claim 11, wherein, The post-processing device further comprises a drying assembly arranged on the post-processing body, the drying assembly is used for providing hot air to the processing chamber to dry the printed product.

14. The 3D printing system of claim 11, wherein, The post-processing device further comprises a curing assembly arranged in the processing chamber, the curing assembly is used for curing the printed product.

15. The 3D printing system of claim 11, wherein, The post-processing device further comprises a second limiting device arranged on the post-processing body, and the second limiting device is used for limiting the movement of the printing platform (3) to above the opening (2001).

16. A printer characterized by comprising: A 3D printing system according to any one of claims 1-15, comprising a printer body (1), a transport mechanism (2) arranged in the printer body (1) and a printing platform (3) arranged in the transport mechanism (2), the transport mechanism (2) being configured to move the printing platform (3) in a vertical direction and to move the printing platform (3) between the printer and a post-processing device.

17. An aftertreatment device characterized by, A 3D printing system according to any one of claims 1-15, comprising a post-processing body, a transport mechanism (2) arranged in the post-processing body and a printing platform (3) arranged in the transport mechanism (2), the transport mechanism (2) being configured to move the printing platform (3) in a vertical direction and to move the printing platform (3) between the post-processing device and a printer.