3D printing system, 3D printer, post-processing device and control method

Abstract

The application belongs to the technical field of additive manufacturing, and discloses a 3D printing system, a 3D printer, a post-processing device and a control method. Specifically, the 3D printing system comprises a printing module, a post-processing module, a transmission mechanism and a control module. The printing module is used for forming a printing material into a printed part; the post-processing module is used for performing one or more processes of the following processes on the printed part: a cleaning process, a drying process and a post-curing process; the transmission mechanism is used for conveying the printed part from the printing module to the post-processing module; and the control module is in signal connection with the printing module, the post-processing module and the transmission mechanism. Through the application, the functional connection of the automatic printing process and the automatic post-processing process can be realized, manual participation in carrying the printing platform is avoided, the labor cost is reduced, the user experience is improved, the production efficiency and the production capacity are improved, and the functional comprehensiveness of the 3D printing system is ensured.

Description

Technical Field

[0001] This invention relates to the field of additive manufacturing technology, and more particularly to a 3D printing system, a 3D printer, a post-processing device, and a control method. Background Technology

[0002] The core principle of 3D printing is additive manufacturing, which involves building three-dimensional solids by layering materials. Unlike traditional subtractive manufacturing (such as machining), 3D printing achieves manufacturing by adding material, resulting in higher material utilization and design freedom. Due to its flexibility and efficiency, 3D printing is widely used in manufacturing, medical, aerospace, automotive, and construction industries.

[0003] Currently, the development trend of existing 3D printing equipment is to integrate more functions to achieve automated intelligent manufacturing, thereby reducing reliance on human labor.

[0004] However, existing 3D printing products suffer from low levels of integration and poor automation. The multi-stage 3D printing process, including printing, transporting, and post-processing, still requires manual operation and contact with the printed parts. This significantly reduces the integration and automation of 3D printing systems and limits production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a 3D printing system, a 3D printer, a post-processing device, and a control method to improve integration and automation, while increasing production efficiency and capacity.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] 3D printing systems, including:

[0008] A printing module, wherein the printing module is used to form printing material into printed parts;

[0009] The post-processing module is used to perform one or more of the following processes on the printed part: a cleaning process, a drying process, and a post-curing process;

[0010] A transfer mechanism for conveying the printed part from the printing module to the post-processing module.

[0011] As an alternative to a 3D printing system, the printing module includes a printing platform, and the transfer mechanism is used to transport the printing platform from the printing module to the post-processing module.

[0012] As an optional 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 in a transmission manner, and the first driving component is connected to the printing platform. One of the second driving component and the first driving component is used to drive the printing platform to move in a vertical direction, and the other is used to drive the printing platform to move between the printing module and the post-processing module.

[0013] As an alternative to a 3D printing system, one of the first drive component and the second drive component drives the printing platform to move vertically, while the other drives the printing platform to move linearly or rotate horizontally.

[0014] As an optional solution for a 3D printing system, the first drive assembly includes a first mounting base, a first drive component, and a first lead screw. The first mounting base is mounted on the second drive assembly, the first drive component and the first lead screw are mounted on the first mounting base, the first drive component and the first lead screw are connected in a driving connection, and the first lead screw is screwed to the printing platform.

[0015] As an alternative to a 3D printing system, the first drive assembly 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.

[0016] As an optional 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. 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.

[0017] As an optional solution for a 3D printing system, the second drive assembly includes a second mounting base, a second drive member, and a second lead screw. The second drive member and the second lead screw are mounted on the second mounting base and are connected in a driving manner. The second lead screw is screwed to the first mounting base. One of the first lead screw and the second lead screw is set vertically, and the other is set horizontally.

[0018] As an alternative to the 3D printing system, the second drive assembly 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.

[0019] As an optional solution for a 3D printing system, the post-processing module includes:

[0020] The post-processing unit is provided with a processing chamber, the processing chamber having a first opening for the printed material to enter the processing chamber and a support component for carrying the printed material, the support component being arranged corresponding to the first opening.

[0021] As an optional solution for a 3D printing system, the post-processing module further includes a scraping mechanism for performing a scraping operation on the printed part. The scraping mechanism includes:

[0022] A scraper, which is used to move along the forming surface of the printing platform to separate the printed part from the printing platform;

[0023] The third drive component is used to drive the spatula to move along the forming surface of the printing platform;

[0024] Tensioning assembly, which provides elasticity for the spatula to adhere tightly to the printing platform.

[0025] As an optional solution for a 3D printing system, the post-processing module includes a cleaning mechanism for performing the cleaning process on the printed part. The cleaning mechanism includes:

[0026] A material holding section, which is used to hold cleaning materials;

[0027] A spraying assembly for spraying the cleaning material onto the surface of the printed part, the spraying assembly including a spraying element disposed in the material holding part and an air supply module communicating with the spraying element;

[0028] A feeding assembly for feeding the cleaning material into the material holding section;

[0029] A recycling component for recycling the cleaning material in the processing chamber.

[0030] As an optional solution for a 3D printing system, the post-processing module includes a drying component for performing the drying process on the printed part. The drying component includes:

[0031] The heater, the air supply module includes an air supply channel and an airflow control component, the air supply channel connects the processing chamber to the outside of the post-processing module, the air supply channel is connected to the processing chamber, and the airflow control component is connected to the air supply channel; the heater is disposed on the air supply channel.

[0032] As an alternative to a 3D printing system, the post-processing unit is equipped with an exhaust assembly for connecting the processing chamber to the outside of the post-processing unit.

[0033] As an optional solution for a 3D printing system, the post-processing module includes a post-curing component for performing the post-curing process on the printed part. The post-curing component includes:

[0034] A curing lamp is installed on the inner wall of the post-processing unit, and the curing lamp is used to irradiate the printed parts in the processing chamber.

[0035] As an alternative to a 3D printing system, it includes:

[0036] The control module is signal-connected to the printing module, the post-processing module, and the transmission mechanism.

[0037] A 3D printer, used in any of the above-described 3D printing systems, the 3D printer comprising:

[0038] A printing module is used to form the printing material into the printed part;

[0039] A transmission mechanism for conveying the printed part to the post-processing module.

[0040] As an alternative to a 3D printer, the printing module also includes a printing platform, a material container, and a photomechanical unit. The material container holds the printing material, and the photomechanical unit shapes the printing material into the printed part on the printing platform.

[0041] A post-processing device, applied to any of the above-described 3D printing systems, the post-processing device comprising:

[0042] The post-processing module is used to perform post-processing procedures on the printed parts;

[0043] A transfer mechanism for conveying the printed part from the printing module to the post-processing module.

[0044] As an optional post-processing device, the post-processing module further includes:

[0045] The post-processing unit has a processing chamber with a first opening for the printed part to enter the processing chamber. The transmission mechanism is used to insert the printing platform on the printing module into the first opening so that the printed part is placed in the processing chamber.

[0046] A control method, based on the 3D printing system described above, includes:

[0047] Printing, shaping the printing material into the printed part;

[0048] The printing platform and the printed parts are transported to the post-processing stage.

[0049] Post-processing involves performing the post-processing steps on the printed parts.

[0050] As an alternative control method, the post-processing step further includes:

[0051] Cleaning involves spraying cleaning material onto the printed parts.

[0052] As an alternative to the control method, the post-processing step further includes:

[0053] Drying is achieved by drying the printed parts with heated airflow.

[0054] As an alternative to the control method, the post-processing step further includes:

[0055] Post-curing: The printed parts undergo a post-curing process.

[0056] Beneficial effects:

[0057] In a first aspect of the present invention, the 3D printing system achieves the functional connection between the automated printing process and the automated post-processing process through the integrated printing module, post-processing module, transmission mechanism and control module. This avoids manual handling of the printing platform, reduces labor costs, and the multi-functional post-processing module also prevents users from directly contacting the printed parts, improving the user experience. The degree of automation and integration is significantly improved, effectively increasing production efficiency and capacity, and ensuring the comprehensive functionality of the 3D printing system.

[0058] In a second aspect of the invention, by integrating a transfer mechanism capable of moving printed parts onto a 3D printer, the 3D printer is enabled to transport printed parts, thus expanding the functionality of the 3D printer, improving its automation level, and avoiding the need for operators to manually separate and transport printed parts to the post-processing module, thereby ensuring production efficiency.

[0059] In a third aspect of the invention, by directly integrating the transport mechanism for moving the printed parts into the post-processing device, after the printing module completes the forming of the printed parts, they can be directly transported to the post-processing module for post-processing. This enables the post-processing device to not only have post-processing functions but also to further realize the function of transporting the printed parts, thereby expanding the adaptability and automation level of the post-processing device.

[0060] In a fourth aspect of the present invention, the control method enables automated operation of the printed parts in the printing process, the transport process and the post-processing process, thereby improving the level of automation in 3D printing. Attached Figure Description

[0061] Figure 1 This is a flowchart of the workflow of the 3D printing system provided in this embodiment of the invention;

[0062] Figure 2 This is a top view of the 3D printing system provided in an embodiment of the present invention;

[0063] Figure 3 This is a schematic diagram of the structure of the 3D printing system provided in an embodiment of the present invention;

[0064] Figure 4 This is a schematic diagram of the transmission mechanism provided in an embodiment of the present invention;

[0065] Figure 5 This is an exploded view of the transmission mechanism provided in an embodiment of the present invention;

[0066] Figure 6 This is a schematic diagram of the structure of the post-processing module provided in an embodiment of the present invention;

[0067] Figure 7 This is an isometric view of the post-processing module provided in an embodiment of the present invention.

[0068] In the picture:

[0069] 1. Printing module; 3. Printing platform; 31. Printing block; 311. Printing surface; 312. Positioning groove; 32. Cantilever; 33. Fixing base; 331. First mounting hole;

[0070] 2. Post-processing module; 21. Post-processing body; 211. Processing chamber; 212. Exhaust assembly; 213. Material holding section; 22. First opening; 23. Seal; 24. Shovel; 25. Tensioning assembly; 26. Cleaning frame; 261. First frame component; 2611. Second opening; 262. Second frame component; 27. Spray assembly; 271. Nozzle; 272. Pump body; 273. First pipeline; 274. Second pipeline; 275. Storage tank; 28. Air supply module; 281. Air supply channel; 282. Airflow control component; 283. Heater; 29. Curing lamp; 2a. Transmission mechanism; 21a. First drive assembly; 211a. First mounting base; 2111a. First mounting hole; 212a. First drive element; 213a. First lead screw; 214a. First nut; 215a. First guide rail; 216a. First slider; 22a. Second drive assembly; 221a. Second drive element; 2211a. Drive motor; 2212a. Coupling; 222a. Second lead screw; 223a. Second nut; 224a. Second mounting base; 225a. Second guide rail; 226a. Second slider. Detailed Implementation

[0071] 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 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, and not all of the structures.

[0072] In the description of this invention, 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 invention based on the specific circumstances.

[0073] 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.

[0074] In the description of this embodiment, the terms "upper," "lower," "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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0075] Please see the appendix Figure 1 - Appendix Figure 3 The first aspect of this embodiment relates to a 3D printing system, and more particularly to a 3D printing system in the field of additive manufacturing. Specifically, the 3D printing system includes a printing module 1, a post-processing module 2, and a transport mechanism 2a. The printing module 1 is used to form printing material into a printed part; the post-processing module 2 is used to perform one or more of the following processes on the printed part: a cleaning process, a drying process, and a post-curing process; the transport mechanism 2a is used to transport the printed part from the printing module 1 to the post-processing module 2.

[0076] Furthermore, the 3D printing system includes a control module, which is signal-connected to the printing module 1, the post-processing module 2, and the transmission mechanism 2a.

[0077] Specifically, printing module 1 is mainly used to automate the printing process, including automatic resin dispensing, automatic printing, and cartridge heating. During automatic resin dispensing, a micro-motor drives an extrusion structure to act on a silicone valve at the resin bottle opening, precisely controlling the opening and closing of the bottle. The built-in printing program in the control module determines the required resin quantity for the current print run before use, facilitating subsequent continuous automatic quantitative injection and achieving precise resin quantity control. Printing module 1 uses a ball screw structure to drive the printing platform 3 vertically, ensuring continuous automated printing. An eddy current sensor is installed at the end of the screw, which coordinates the printing platform 3 to detect foreign objects in the cartridge before printing and to detect abnormal printing conditions such as plate drops during printing, thus ensuring the success rate and accuracy of each print run. During the heating process of the ink cartridge, the heating components on both sides of the printing platform 3 and the scraping component at the top of the ink cartridge work together to complete the process. The heating components heat the resin in the ink cartridge, while the scraping component slowly stirs the resin back and forth above the ink cartridge to ensure uniform heating. During the automated printing process of the printing platform 3, the scraping component also stirs the resin in the ink cartridge according to the temperature range set for each type of resin, thereby precisely controlling the temperature of the resin in the ink cartridge and ensuring the molding quality of the printed parts. In addition, the scraping component also works with the printing platform 3 to check the bottom of the platform for foreign objects, residues, or other defects before printing.

[0078] Post-processing module 2 integrates multiple post-processing functions for printed parts. Specifically, post-processing module 2 can perform one or more of the following processes on printed parts: scraping, cleaning, drying, and post-curing. The high degree of integration ensures the compact structure of the entire 3D printing system. In addition, multiple post-processing operations can be completed directly within the same post-processing module 2, avoiding manual handling and conveying of printed parts from the printing platform 3, and also avoiding direct contact between operators and printed parts, thus freeing up the operators' hands and ensuring the efficiency of post-processing operations.

[0079] The transfer mechanism 2a is directly connected to the printing platform 3. On one hand, it can move the printing platform 3 up and down, allowing it to solidify layer by layer during printing. On the other hand, after the printing platform 3 of printing module 1 finishes its printing process, the transfer mechanism 2a can move the printing platform 3 to the post-processing module 2 to perform post-processing on the printed parts. The transfer mechanism 2a can take various forms, including but not limited to linear guide axial movement, arc guide arc movement, and robotic gripping movement. It should be noted that the transfer mechanism 2a can also be independent of the printing platform 3, directly transferring the printed parts. For example, after the printing module 1 finishes its printing process, the printed parts can be separated from the printing platform 3, and then transferred to the post-processing module 2 by a robotic arm or conveyor belt, etc., for post-processing.

[0080] The control module can use a conventional controller with a built-in control program to realize the printing process of the printing module 1, the conveying process of the transmission mechanism 2a, and the post-processing process of the post-processing module 2, thereby realizing a semi-automatic or fully automatic process.

[0081] In this embodiment, the 3D printing system achieves the functional connection between the automated printing process and the automated post-processing process through the integrated printing module 1, post-processing module 2, transmission mechanism 2a and control module, avoiding manual intervention and reducing labor costs; the degree of automation and integration is significantly improved, effectively improving production efficiency and capacity, and the functions of the entire 3D printing system are more comprehensive.

[0082] Optionally, the printing module 1 includes a printing platform 3, and a transmission mechanism 2a is used to drive the printing platform 3 to move vertically. During the printing process, the printing platform 3 moves up (or down) layer by layer to achieve layer-by-layer curing printing.

[0083] Optionally, the printing module 1 includes a printing platform 3, and the transmission mechanism 2a is used to transport the printing platform 3 from the printing module 1 to the post-processing module 2.

[0084] Specifically, the printing material is formed (e.g., cured) into a printed part on the printing platform 3. The printing platform 3 is integrated into the printing module 1 and connected to the transmission mechanism 2a. The printing platform 3 is transported to the post-processing module 2 through the transmission mechanism 2a to perform one or more subsequent post-processing steps.

[0085] In this embodiment, the printing platform 3 is directly transported from the printing module 1 to the post-processing module 2, which can ensure the integration and automation of 3D printing and post-processing. At the same time, by directly transporting the printing platform 3, it is also possible to avoid the need to add multiple clamping and positioning mechanisms when directly transporting the printed parts, thus ensuring the structural compactness of the entire 3D printing system.

[0086] Please see the appendix Figure 2 - Appendix Figure 5 Optionally, the transmission mechanism 2a includes a first driving component 21a and a second driving component 22a. The second driving component 22a is connected to the first driving component 21a, and the first driving component 21a is connected to the printing platform 3. One of the second driving component 22a and the first driving component 21a 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 printing module 1 and the post-processing module 2. In this embodiment, the first driving component 21a is used to drive the printing platform 3 to move vertically, and the second driving component 22a is used to drive the printing platform 3 to move between the printing module 1 and the post-processing module 2. Alternatively, the second driving component 22a can be used to drive the printing platform 3 to move vertically, and the first driving component 21a can be used to drive the printing platform 3 to move between the printing module 1 and the post-processing module 2.

[0087] One of the first drive component 21a and the second drive component 22a drives the printing platform 11 to move vertically, while the other drives the printing platform 11 to move linearly or rotate horizontally. It should be noted that the movement of the printing platform 3 between the printing module 1 and the post-processing module 2 can be linear, curvilinear (such as horizontal rotation around a certain rotation center line), horizontal, or inclined.

[0088] In this embodiment, the first driving assembly 21a includes a first mounting base 211a, a first driving member 212a, and a first lead screw 213a. The first mounting base 211a is mounted on the second driving assembly 22a. The first driving member 212a and the first lead screw 213a are mounted on the first mounting base 211a. The first driving member 212a and the first lead screw 213a are connected in a transmission manner. The first lead screw 213a is screwed to the printing platform 3. When the first driving member 212a drives the first lead screw 213a to rotate, the first lead screw 213a drives the printing platform 3 to move along the extension direction of the first lead screw 213a.

[0089] Preferably, the first drive assembly 21a further includes a first guide component, which is mounted on the first mounting base 211a 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 213a, thereby improving the movement accuracy of the printing platform 3 along the extension direction of the first lead screw 213a.

[0090] Specifically, the first guide component includes two first guide rails 215a and two first sliders 216a. The first guide rails 215a are mounted on the first mounting base 211a, and the extending direction of the first guide rails 215a is the same as the extending direction of the first lead screw 213a. The two first guide rails 215a are located on both sides of the first lead screw 213a. The two first sliders 216a are connected to the printing platform 3, and the two first sliders 216a are slidably connected to the two first guide rails 215a respectively. In this embodiment, the two first sliders 216a are connected to the printing platform 3, and the first guide rails 215a can be fixed to the first mounting base 211a by screws. The printing platform 3 is slidably connected to the first mounting base 211a through the cooperation of the two first guide rails 215a and the two first sliders 216a, which improves the movement accuracy and connection strength of the printing platform 3.

[0091] 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 21a. 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. 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 214a, realizing the screw connection between the first lead screw 213a 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.

[0092] Furthermore, the second drive assembly 22a includes a second mounting base 224a, a second drive member 221a, and a second lead screw 222a. The second mounting base 224a is mounted on the printer, and the second drive member 221a and the second lead screw 222a are mounted on the second mounting base 224a. The second drive member 221a and the second lead screw 222a are connected in a transmission manner. The second lead screw 222a is screwed to the first mounting base 211a. One of the first lead screw 213a and the second lead screw 222a is vertically arranged, and the other is horizontally arranged. When the second drive member 221a drives the second lead screw 222a to rotate, the second lead screw 222a threadedly drives the first mounting base 211a to move along the extension direction of the second lead screw 222a, thereby driving the printing platform 3 to move along the extension direction of the second lead screw 222a.

[0093] In this embodiment, the second mounting base 224 can be fixed to the printer with screws, and the stability of the second lead screw 222a is improved by setting the second mounting base 224a. The first mounting base 211a is provided with a second mounting hole on the side near the second drive assembly 22a, the second nut 223a is installed in the second mounting hole, and the second lead screw 222a is threadedly connected to the second nut 223a, realizing the screw connection between the second lead screw 222a and the first mounting base 211a.

[0094] Preferably, the second drive assembly 22a further includes a second guide component, which is mounted on the second mounting base 224a and guided to the printing platform 3. The second guide component is used to provide guidance for the movement of the second mounting base 224a along the extension direction of the second lead screw 222a, thereby improving the movement accuracy of the printing platform 3 along the extension direction of the second lead screw 222a.

[0095] Specifically, the second guide component includes two second guide rails 225a and two second sliders 226a. The second guide rails 225a are mounted on the second mounting base 224a, and their extension direction is the same as that of the second lead screw 222a. The two second guide rails 225a are located on both sides of the second lead screw 222a. The two second sliders 226a are connected to the first mounting base 211a, and are slidably connected to the two second guide rails 225a respectively. In this embodiment, the second guide rails 225a can be fixed to the second mounting base 224a with screws. The first mounting base 211a is slidably connected to the second mounting base 224a through the cooperation of the two first guide rails 215a and the two first sliders 216a, which improves the movement accuracy and connection strength of the printing platform 3 along the extension direction of the second lead screw 222a.

[0096] In this embodiment, the first lead screw 213a is vertically arranged. When the printing platform 3 moves along the extension direction of the first lead screw 213a, 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 222a is horizontally arranged. When the printing platform 3 moves along the extension direction of the second lead screw 222a, the printed part is adhered to the bottom of the printing platform 3 and transported to the other end of the second lead screw 222a for subsequent processing, thereby realizing automated 3D printing transportation operations.

[0097] In this embodiment, the second driving component 221a includes a drive motor 2211a and a coupling 2212a. Both the drive motor 2211a and the coupling 2212a are mounted on the second mounting base 224a. The drive motor 2211a is rotatably connected to the second lead screw 222a via the coupling 2212a. The mounting bases for the drive motor 2211a and the coupling 2212a can be fixed to the second mounting base 224a with screws.

[0098] Of course, in other embodiments, the second drive component 22a can drive the first drive component 21a to rotate in a horizontal plane. The second drive component 22a can be implemented using a robotic arm to drive the first drive component 21a to rotate in a horizontal plane. Alternatively, the second drive component 22a can include a motor and a turntable, with the turntable disposed at the output end of the motor, the first drive component 21a 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 21a to rotate in a horizontal plane.

[0099] Optionally, the first drive component 21a further includes a first limiting member, and the second drive component 22a includes a second limiting member.

[0100] Specifically, both the first and second limiting components can be limit switches. These limit switches engage with the printing platform 3 to limit its movement. When the second drive assembly 22a moves the printing platform 3 horizontally to directly above the first opening 22, the first limiting component is triggered, causing the control module to stop the second drive assembly 22a and halt the horizontal movement of the printing platform 3. Further, the first drive assembly 21a is activated and begins to move the printing platform 3 toward the first opening 22. Once the printing platform 3 completely closes the first opening 22, the second limiting component is triggered, and the control module stops the first drive assembly 21a.

[0101] Preferably, both the first driving component 212a and the second driving component 221a can be rotary motors. It should be noted that the first driving component 21a can be a hydraulic driving component or a pneumatic driving component, and the second driving component 22a can be a hydraulic driving component or a pneumatic driving component; the driving method is not limited to these.

[0102] Please see the appendix Figure 6 and attached Figure 7 Optionally, the post-processing module 2 includes a post-processing body 21, which has a processing chamber 211. The processing chamber 211 has a first opening 22 for the printed parts to enter the processing chamber 211 and a carrier component for carrying the printed parts. The carrier component is arranged corresponding to the first opening 22.

[0103] Specifically, the post-processing unit 21 has a cubic structure, and a cuboid-shaped processing chamber 211 is provided inside the post-processing unit 21. After the transfer mechanism 2a moves the printing platform 3 above the post-processing unit 21, the printing platform 3 can be lowered to the first opening 22, thereby sealing the processing chamber 211. When the printing platform 3 is placed in the first opening 22, the outer periphery of the printing platform 3 is in contact with the sealing member 23. By ensuring that the sealing member 23 is tightly in contact with the outer periphery of the printing platform 3, it is ensured that the cleaning material will not overflow from the periphery of the platform during the subsequent cleaning process.

[0104] In this embodiment, the shape of the first opening 22 is adapted to the shape of the printing platform 3.

[0105] Optionally, the post-processing module 2 also includes a scraper mechanism, which includes a scraper 24, a third drive assembly, and a tensioning assembly 25. The scraper 24 is used to move along the forming surface of the printing platform 3 to separate the printed part from the printing platform 3. The third drive assembly is used to drive the scraper 24 to move along the forming surface of the printing platform 3. The tensioning assembly 25 is used to provide elasticity for the scraper to adhere tightly to the printing platform 3.

[0106] Specifically, the scraping mechanism works as follows: After printing, the printing platform 3 is inserted into the first opening 22. At this time, the printed part adheres to the bottom of the printing platform 3, and the scraper 24 can move horizontally along the printing platform 3 to scrape off the printed part, which then falls into the processing chamber 211. The scraper 24 has third drive components at both ends along its length to make its movement more stable. In some embodiments, the scraping mechanism further includes a guide component, which includes a slide rail located on the post-processing unit 21 and a slide block slidably connected to the slide rail. The slide rail is connected to the scraper 24. The guide components at both ends along the length of the scraper 24 limit its movement trajectory and prevent it from shaking. It should be noted that a single third drive component can also achieve the purpose of driving the scraper 24 to move.

[0107] Furthermore, the tensioning assembly 25 provides an elastic compressive force to keep the scraper 24 tightly pressed against the printing platform 3. In this embodiment, one end of the tensioning assembly 25 is connected to the scraper 24, and the other end is connected to the slide. When the printing platform 3 is closed in the first opening 22, the forming surface of the printing platform 3 abuts against the working end of the scraper 24. If the scraper 24 is subjected to pressure from the printing platform 3, the reverse force of the tensioning assembly 25 on the scraper 24 makes the working end of the scraper 24 tightly pressed against the forming surface of the printing platform 3. By applying a pre-tightening force to the scraper 24 through the tensioning assembly 25, the separation quality of the printed part from the printing platform 3 is ensured. Of course, the tensioning assembly 25 can also be an elastic element such as a mechanical spring, a mechanical torsion spring, or an air spring.

[0108] In this embodiment, the third drive component can be a drive cylinder or a drive motor to reduce intermediate transmission links and improve structural compactness. The third drive component also includes a third limiting member, which can be a limit switch. The third drive component is signal-connected to the control module. When the first drive component 21a drives the printing platform 3 to close the first opening 22, it simultaneously triggers the third limiting member, thereby causing the control module to drive the third drive component to start. The third drive component drives the scraper 24 to start moving along the forming surface of the printing platform 3 to separate the printed part from the printing platform 3.

[0109] Optionally, the post-processing module 2 includes a cleaning mechanism for performing a cleaning process on the printed parts. The cleaning mechanism includes a material holding section 213, a spraying assembly, a feeding assembly, and a recovery assembly. The material holding section 213 holds the cleaning material; the spraying assembly sprays the cleaning material onto the surface of the printed parts, and includes a spraying element disposed in the material holding section 213 and an air supply module 28 communicating with the spraying element; the air supply module 28 feeds the cleaning material into the material holding section 213; and the recovery assembly recovers the cleaning material from the processing chamber 211.

[0110] Specifically, the carrier assembly is located inside the processing chamber 211 and is used to carry the printed parts. The carrier assembly is correspondingly arranged with the cleaning mechanism. After the printed parts are separated from the printing platform 3, they are carried on the carrier assembly. The cleaning mechanism provides cleaning material to the surface of the printed parts on the carrier assembly to clean the residual resin on the surface of the printed parts. The spraying assembly can be connected to the material supply source of the cleaning material. The cleaning material supplied by the material supply source is sprayed onto the surface of the printed parts through the spraying assembly to clean the residual resin on the surface of the printed parts.

[0111] In this embodiment, the supporting component includes a cleaning frame 26. After the printed part separates from the printing platform 3, it falls into the cleaning frame 26. The cleaning frame 26 includes a first frame member 261 with a second opening 2611 and a second frame member 262 surrounding the second opening 2611. The opening and closing of the second opening 2611 can be adjusted by the first frame member 261 and the second frame member 262. Both the first frame member 261 and the second frame member 262 are semi-cylindrical. The printed part falls from the second opening 2611 into the first frame member 261. By rotating the second frame member 262, the second opening 2611 is closed, and the printed part is surrounded between the first frame member 261 and the second frame member 262. By controlling the rotation angle of the second frame member 262, the opening and closing degree of the second opening 2611 can be controlled, thereby ensuring that printed parts of different sizes can fall smoothly into the cleaning frame 26.

[0112] In this embodiment, a fourth drive assembly 263 is connected to the cleaning frame 26. The fourth drive assembly 263 can drive the cleaning frame 26 to rotate along the axial direction of the cylindrical body, thereby further driving the printed parts to rotate inside, so that the printed parts can fully contact the cleaning material, thereby ensuring the cleaning effect.

[0113] Specifically, the material holding section 213 can serve as a material supply source. The spraying assembly is connected to the material holding section 213. The cleaning material contained in the material holding section 213 is sprayed onto the surface of the printed parts through the spraying assembly to clean the residual resin on the surface of the printed parts. The spraying assembly includes a spraying component located in the material holding section 213 and an air supply module 28 connected to the spraying component. The air supply module 28 includes an air supply channel 281 located in the post-processing body 21 and an airflow control component 282. One end of the air supply channel 281 is connected to the airflow control component 282, and the other end is connected to the processing chamber 211. The airflow control component 282 is used to spray gas along the air supply channel 281 through the spraying component onto the cleaning material in the material holding section 213, and spray it onto the surface of the printed parts using the action of airflow, thereby achieving the cleaning of the printed parts.

[0114] In some embodiments, the material holding section 213 is a recessed area formed by the bottom surface of the processing chamber 211. The feeding assembly can fill the recessed area with cleaning material, and the spraying assembly sprays the cleaning material in the material holding section 213 toward the cleaning frame 26, thereby achieving the cleaning effect on the printed parts. Specifically, a high-pressure airflow is generated by the airflow control component 282 of the air supply module 28, and sprayed onto the printed parts in the cleaning frame 26 through the air supply channel 281 and the spraying component.

[0115] In some embodiments, the material holding section 213 can be omitted, and only the spray assembly 27 is provided. The spray assembly 27 is connected to the material supply source outside the processing chamber 211. The spray assembly 27 includes a nozzle 271, a pump body 272, and a first pipeline 273 disposed on the post-processing body 21. The nozzle 271 is disposed on the side wall of the post-processing body 21, and the pump body 272 is used to transport the cleaning material through the first pipeline 273 to the nozzle 271, and spray it onto the cleaning frame 26 through the nozzle 271.

[0116] The recycling component includes a second pipe 274 located on the bottom wall of the post-processing unit 21, through which residual cleaning material after cleaning can be recycled. An external feeding component for storing cleaning material is provided on the post-processing unit 21. The feeding component includes a storage tank 275 and a pump 272 connected to a first pipe 273. The pump 272 presses the cleaning material from the storage tank 275 into the first pipe 273, and then sprays it through nozzles 271 into the cleaning frame 26, thereby cleaning the printed parts. The used cleaning material flows into the bottom wall of the processing chamber 211 and returns to the storage tank 275 for collection via the second pipe 274.

[0117] Cleaning materials include, but are not limited to, ethanol, acetone, isopropanol, tripropylene glycol monomethyl ether, etc.

[0118] By integrating a cleaning mechanism into the post-processing unit 21, the cleaning post-processing step can be completed directly in the post-processing module 2 without moving the printed parts, thus improving post-processing efficiency.

[0119] Optionally, the post-processing module 2 includes a drying assembly for performing a drying process on the printed parts. The drying assembly includes a heater 283, which is disposed on the air supply channel 281.

[0120] In this embodiment, the air supply module 28 serves not only as part of the cleaning mechanism but also as part of the drying mechanism, thus providing both air jetting and drying functions. During the cleaning process, the heater 283 is turned off, and the airflow control element 282 introduces ambient temperature airflow into the air supply channel 281. This allows the cleaning material inside the material holding section 213 to be sprayed onto the printed part of the carrier component by the airflow. After the cleaning process is completed, the heater 283 is activated, and heated airflow is again introduced into the air supply channel 281 through the airflow control element 282. Under the dual action of heating and airflow, the surface of the printed part is dried, thereby improving the drying effect.

[0121] Specifically, the airflow control component 282 can be a blower, and the heater 283 can be a PTC heater. After the air is heated by the airflow control component 282, it continues to flow along the air supply channel 281 into the processing chamber 211 inside the post-processing machine body 21. At the same time, the cleaning frame 26 rotates to ensure that the heated air is in full contact with the printed parts, thereby improving the drying efficiency.

[0122] By integrating a drying component into post-processing module 2, the drying process can be completed directly within post-processing module 2 without moving the printed parts, thus improving post-processing efficiency and avoiding manual operation.

[0123] Optionally, the post-processing module 2 also includes a post-curing component, which is used to perform a post-curing process on the printed parts. The post-curing component includes a curing lamp 29, which includes, but is not limited to, ultraviolet lamp beads that can generate ultraviolet wavelengths of 365nm, 385nm, and 405nm. During the post-curing process, the cleaning frame 26 can also be rotated to ensure the effect and sufficiency of the post-curing.

[0124] Furthermore, the post-processing unit 21 is provided with an exhaust assembly 212, which is used to connect the processing chamber 211 and the outside of the post-processing unit 21.

[0125] Specifically, the exhaust assembly 212 is located on the top of the post-processing unit 21. The exhaust assembly 212 includes an exhaust component with vent holes and a baffle. By cooperating with the baffle, the vent holes can be selectively opened and closed. Air and exhaust gas inside the post-processing unit 21 can be discharged to the outside through the exhaust assembly 212. At the same time, the exhaust assembly 212 can also balance the gas pressure in the post-processing unit 21. It should be noted that the baffle can also prevent the cleaning material from being carried out when the gas is discharged, and the cleaning material is blocked by the baffle and flows back into the processing chamber.

[0126] The second aspect of this embodiment also relates to a 3D printer used in the above-described 3D printing system, wherein the 3D printer includes a printing module 1 and a transport mechanism 2a. The printing module 1 is used to form printing material into a printed part; the transport mechanism 2a is used to transport the printed part to the post-processing module 2.

[0127] By integrating the movable print part transport mechanism 2a into the 3D printer, the 3D printer can be equipped with the function of transporting print parts, which expands the functionality of the 3D printer, improves the level of automation of the 3D printer, and avoids the need for operators to manually separate and transport print parts to the post-processing module 2, thus ensuring production efficiency.

[0128] Furthermore, the printing module 1 also includes a printing platform 3, a material box, and a photomechanical unit. The material box is used to hold the printing material, and the photomechanical unit is used to form the printing material into a printed part on the printing platform 3.

[0129] In this embodiment, the material box is used to hold the printing material, and the optical engine is used to directly deposit the printing material onto the printing platform 3 in a layer-by-layer manner. Existing structures can be used for the material box and the optical engine, and the optical engine can be selected according to the type of 3D printed part, with the appropriate specifications and model. The specific working principle of the optical engine will not be elaborated upon in this embodiment.

[0130] The control module is signal-connected to the printing module 1, the post-processing module 2, and the transmission mechanism 2a. Specifically, the control module is signal-connected to the drive components, pumps, valves, heaters, sensors, etc. of the printing module 1, the post-processing module 2, and the transmission mechanism 2a to realize automatic printing, automatic transfer of printed parts, and automatic post-processing, achieving full automation of printer post-processing.

[0131] The third aspect of this embodiment also relates to a post-processing apparatus, which can also be applied to the above-described 3D printing system. The post-processing apparatus includes a post-processing module 2 and a transfer mechanism 2a. The post-processing module 2 is used to perform post-processing steps on the printed part; the transfer mechanism 2a is used to transport the printed part from the printing module 1 to the post-processing module 2.

[0132] By directly integrating the transfer mechanism 2a for moving printed parts into the post-processing device, after the printing module 1 completes the forming of the printed parts, they can be directly transported to the post-processing module 2 for post-processing through the transfer mechanism 2a. This enables the post-processing device to not only have post-processing functions, but also to further realize the function of transporting printed parts, thus expanding the adaptability and automation level of the post-processing device.

[0133] Furthermore, the post-processing module 2 includes a post-processing body 21, which has a processing chamber 211. The processing chamber 211 has a first opening 22 for the printed parts to enter the processing chamber 211. The transmission mechanism 2a is used to insert the printing platform 3 on the printing module 1 into the first opening 22 so that the printed parts are placed in the processing chamber 211.

[0134] By cooperating with the transmission mechanism 2a, the printed parts already formed on the printing platform 3 can be directly transported to the processing chamber 211, avoiding the cumbersome process of separating the printed parts after they are formed and then transporting them to the processing chamber 211. This simplifies intermediate processes and improves efficiency. At the same time, the post-processing unit 21 has a first opening 22 for cooperating with the printing platform 3, which further ensures that the printing platform 3 can directly cooperate with the post-processing module 2, realizing a smooth connection of the post-processing process.

[0135] The fourth aspect of this embodiment also relates to a control method based on the above-described 3D printing system. The control method includes:

[0136] S1. Printing: The process of shaping printing material into a printed part.

[0137] The control module controls the transmission mechanism to move the printing platform layer by layer up (or down) in the printing material in the material box according to the printing program, and synchronously controls the optical engine to expose the printing platform 3 layer by layer, forming the printing material into a printed part.

[0138] During the printing process, the control module can also control the infeeding component to automatically inject printing material into the material box, the heating component to automatically heat the printing material in the material box, and the scraping component to automatically stir the printing material in the material box.

[0139] S2, Transfer: Transport the printing platform 3 and the printed parts to the post-processing stage.

[0140] After the printing module finishes printing, the control module controls the transmission mechanism to transport the printing platform 3 to the post-processing unit and seal the printing platform 3 at the first opening 22, thus closing the processing chamber 211. Specifically, the control module controls the transmission mechanism to move the printing platform horizontally to the post-processing unit, above the first opening 22, and then controls the transmission mechanism to move the printing platform up and down to seal the printing platform at the first opening 22.

[0141] S3. Post-processing: Perform post-processing steps on the printed parts.

[0142] The post-processing steps include scraping, cleaning, drying, and post-curing. Specifically:

[0143] Part removal process: The control module controls the scraper 24 to move along the forming surface of the printing platform 3, separating the printed part from the printing platform 3, and the printed part falls into the cleaning frame 26 of the carrier component.

[0144] Cleaning process: The control module controls the feeding component to feed cleaning material into the material holding section 213, and controls the air supply module 28 to supply gas. The gas is sprayed onto the cleaning material through the atomizing component, and the cleaning material is finely sprayed onto the surface of the printed parts. The control module simultaneously controls the rotation of the cleaning frame 26 to achieve comprehensive cleaning of the printed parts, improve cleaning efficiency and ensure cleaning effect. After cleaning, the control module controls the recycling component to recycle the cleaning material in the processing chamber.

[0145] Drying process: The control module controls the gas supply module 28 to send in gas and controls the heater 283 to start heating the gas. The heated gas flows into the processing chamber 211 to achieve rapid drying of the printed parts.

[0146] In the post-curing process, the printed parts are photocured using a curing lamp 29 to obtain the finished product after post-processing. The control module controls the curing lamp 29 to emit light and illuminate the printed parts, thereby achieving post-curing of the printed parts.

[0147] This control method enables automated operation of printed parts during the printing, transport, and post-processing processes, thereby improving the level of automation in 3D printing.

[0148] This control method enables automated operation of printed parts during the printing, transport, and post-processing processes, thereby improving the level of automation in 3D printing.

[0149] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A 3D printing system, characterized in that, include: A printing module (1) is used to form printing material into printed parts; Post-processing module (2), the post-processing module (2) is used to perform one or more of the following processes on the printed part: cleaning process, drying process and post-curing process; A transmission mechanism (2a) is used to transport the printout from the printing module (1) to the post-processing module (2).

2. The 3D printing system according to claim 1, characterized in that, The printing module (1) includes a printing platform (3), and the transmission mechanism (2a) is used to transport the printing platform (3) from the printing module (1) to the post-processing module (2).

3. The 3D printing system according to claim 2, characterized in that, The transmission mechanism (2a) includes a first drive component (21a) and a second drive component (22a). The second drive component (22a) is connected to the first drive component (21a) in a transmission manner, and the first drive component (21a) is connected to the printing platform (3). One of the second drive component (22a) and the first drive component (21a) is used to drive the printing platform (3) to move along the vertical direction, and the other is used to drive the printing platform (3) to move between the printing module (1) and the post-processing module (2).

4. The 3D printing system according to claim 3, characterized in that, One of the first driving component (21a) and the second driving component (22a) 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.

5. The 3D printing system according to claim 3, characterized in that, The first drive assembly (21a) includes a first mounting base (211a), a first drive member (212a), and a first lead screw (213a). The first mounting base (211a) is mounted on the second drive assembly (22a). The first drive member (212a) and the first lead screw (213a) are mounted on the first mounting base (211a). The first drive member (212a) and the first lead screw (213a) are connected in a transmission manner. The first lead screw (213a) is screwed to the printing platform (3).

6. The 3D printing system according to claim 3, characterized in that, The first drive assembly (21a) further includes a first guide component, which is mounted on the first mounting base (211a) and is directionally connected 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 (213a).

7. The 3D printing system according to claim 6, characterized in that, The first guide component includes two first guide rails (215a) and two first sliders (216a). The first guide rails (215a) are mounted on the first mounting base (211a). The extension direction of the first guide rails (215a) is the same as the extension direction of the first lead screw (213a). The two first guide rails (215a) are disposed on both sides of the first lead screw (213a). The two first sliders (216a) are connected to the printing platform (3), and the two first sliders (216a) are slidably connected to the two first guide rails (215a).

8. The 3D printing system according to claim 4, characterized in that, The second drive assembly (22a) includes a second mounting base (224a), a second drive member (221a), and a second lead screw (222a). The second drive member (221a) and the second lead screw (222a) are mounted on the second mounting base (224a). The second drive member (221a) and the second lead screw (222a) are connected in a transmission manner. The second lead screw (222a) is screwed to the first mounting base (211a). One of the first lead screw (213a) and the second lead screw (222a) is vertically arranged, and the other is horizontally arranged.

9. The 3D printing system according to claim 8, characterized in that, The second drive assembly (22a) further includes a second guide component mounted on the second mounting base (224a) and guided to the printing platform (3). The second guide component is used to guide the movement of the second mounting base (224a) along the extension direction of the second lead screw (222a).

10. The 3D printing system according to claim 1, characterized in that, The post-processing module (2) includes: The post-processing unit (21) is provided with a processing chamber (211). The processing chamber (211) has a first opening (22) for the printed material to enter the processing chamber (211) and a carrier component for carrying the printed material. The carrier component is arranged corresponding to the first opening (22).

11. The 3D printing system according to claim 2, characterized in that, The post-processing module (2) further includes a scraping mechanism, which is used to perform a scraping process on the printed part. The scraping mechanism includes: A scraper (24) is used to move along the forming surface of the printing platform (3) to separate the printed part from the printing platform (3); The third drive component is used to drive the spatula (24) to move along the forming surface of the printing platform (3); Tensioning assembly (25) for providing elasticity to keep the blade (24) in contact with the printing platform (3).

12. The 3D printing system according to claim 10, characterized in that, The post-processing module (2) includes a cleaning mechanism for performing the cleaning process on the printed material. The cleaning mechanism includes: The material holding section (213) is used to hold the cleaning material; The spraying assembly is used to spray the cleaning material onto the surface of the printed part. The spraying assembly includes a spraying component disposed in the material holding part (213) and an air supply module (28) connected to the spraying component. A feeding assembly for feeding the cleaning material into the material holding section (213); A recycling component for recycling the cleaning material in the processing chamber (211).

13. The 3D printing system according to claim 12, characterized in that, The post-processing module (2) includes a drying component for performing the drying process on the printed part. The drying component includes: The heater (283) and the air supply module include an air supply channel (281) and an airflow control component (282). The air supply channel (281) connects the processing chamber (211) to the outside of the post-processing module (2). The air supply channel (281) is connected to the processing chamber (211). The airflow control component (282) is connected to the air supply channel (281). The heater (283) is disposed on the air supply channel (281).

14. The 3D printing system according to claim 10, characterized in that, The post-processing unit (21) is provided with an exhaust assembly (212), which is used to connect the processing chamber (211) and the outside of the post-processing unit (21).

15. The 3D printing system according to claim 10, characterized in that, The post-processing module (2) includes a post-curing component, which is used to perform the post-curing process on the printed part. The post-curing component includes: A curing lamp (29) is provided on the inner wall of the post-processing unit (21) and is used to irradiate the printed parts in the processing chamber (211).

16. The 3D printing system according to claim 1, characterized in that, include: The control module is signal-connected to the printing module (1), the post-processing module (2), and the transmission mechanism (2a).

17. A 3D printer, characterized in that, The 3D printer, applicable to any one of claims 1-16, comprises: A printing module (1) is used to form the printing material into the printed part; A transmission mechanism (2a) is used to transport the printed part to the post-processing module (2).

18. A 3D printer according to claim 17, characterized in that, The printing module (1) also includes a printing platform (3), a material box and a photomechanical unit. The material box is used to hold the printing material, and the photomechanical unit is used to form the printing material into the printed part on the printing platform (3).

19. A post-processing apparatus, characterized in that, The post-processing device, applied to the 3D printing system according to any one of claims 1-16, comprises: Post-processing module (2), the post-processing module (2) is used to perform post-processing procedures on the printed parts; A transfer mechanism (2a) is used to transport the printed part from the printing module (1) to the post-processing module (2).

20. The post-processing apparatus according to claim 19, characterized in that, The post-processing module (2) further includes: The post-processing unit (21) has a processing chamber (211) inside. The processing chamber (211) has a first opening (22) for the printed part to enter the processing chamber (211). The transmission mechanism (2a) is used to insert the printing platform (3) on the printing module (1) into the first opening (22) so that the printed part is placed in the processing chamber (211).

21. A control method, characterized in that, Based on the 3D printing system according to any one of claims 1-16, comprising: Printing, shaping the printing material into the printed part; The printing platform and the printed parts are transported to the post-processing stage. Post-processing involves performing the post-processing steps on the printed parts.

22. The control method according to claim 21, characterized in that, The post-processing step further includes: Cleaning involves spraying cleaning material onto the printed parts.

23. The control method according to claim 22, characterized in that, The post-processing step further includes: Drying is achieved by drying the printed parts with heated airflow.

24. The control method according to claim 23, characterized in that, The post-processing step further includes: Post-curing: The printed parts undergo a post-curing process.

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