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

Abstract

The present application discloses a 3D printing system, a 3D printer, a post-processing apparatus, a material supply assembly, and a control method. The 3D printing system comprises a printing module, a post-processing module, a conveying mechanism, and a control module. The printing module is used for forming a printed object from a printing material. The post-processing module is used for performing one or more of the following processes on the printed object: a cleaning process, a drying process, and a post-curing process. The conveying mechanism is used for conveying the printed object from the printing module to the post-processing module. The control module is in signal connection with the printing module, the post-processing module, and the conveying mechanism. By means of the present application, functional integration between an automated printing process and an automated post-processing process can be achieved, manual involvement in transporting a printing platform can be avoided, labor costs can be reduced, user experience can be improved, production efficiency and production capacity can be increased, and the comprehensiveness of functions of the 3D printing system can be ensured.

Description

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

[0001] This application relates to the field of additive manufacturing technology, and in particular 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 materials, 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. Summary of the Invention

[0003] The purpose of this application is to provide a 3D printing system, 3D printer, post-processing device and control method to improve integration and automation, while increasing production efficiency and capacity.

[0004] To achieve this objective, the following technical solution is adopted in this application.

[0005] A 3D printing system includes: a printing module for forming printing material into a printed part; a post-processing module for performing one or more of the following processes on the printed part: a cleaning process, a drying process, and a post-curing process; and a transfer mechanism for conveying the printed part from the printing module to the post-processing module.

[0006] Optionally, the printing module includes a printing platform, and the transmission mechanism is used to transport the printing platform from the printing module to the post-processing module.

[0007] Optionally, the transmission mechanism includes a first driving component and a second driving component, the second driving component being connected to the first driving component in a transmission manner, and the first driving component being 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.

[0008] Optionally, 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] Optionally, the first drive assembly includes a first mounting base, a first drive member, and a first lead screw. The first mounting base is mounted on the second drive assembly, the first drive member and the first lead screw are mounted on the first mounting base, the first drive member and the first lead screw are connected in a driving connection, and the first lead screw is screwed to the printing platform.

[0010] Optionally, 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.

[0011] Optionally, the first guide component includes two first guide rails and two first sliders. The first guide rails are mounted on the first mounting base. 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 are slidably connected to the two first guide rails respectively.

[0012] Optionally, 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 transmission manner to the second lead screw. The second lead screw is screwed to the first mounting base. One of the first lead screw and the second lead screw is vertically arranged, and the other is horizontally arranged.

[0013] Optionally, 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.

[0014] Optionally, the post-processing module includes: a post-processing body, the post-processing body having 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 disposed corresponding to the first opening.

[0015] Optionally, the post-processing module further includes a scraping mechanism for performing a scraping process on the printed part. The scraping mechanism includes: a scraper for moving along the forming surface of the printing platform to separate the printed part from the printing platform; a third drive assembly for driving the scraper to move along the forming surface of the printing platform; and a tensioning assembly for providing elasticity to keep the scraper pressed against the printing platform.

[0016] Optionally, the post-processing module includes a cleaning mechanism for performing the cleaning process on the printed part. The cleaning mechanism includes: a material holding section for holding cleaning material; 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 section and an air supply module communicating with the spraying element; a feeding assembly for feeding the cleaning material into the material holding section; and a recovery assembly for recovering the cleaning material in the processing chamber.

[0017] Optionally, the post-processing module includes a drying component for performing the drying process on the printed part. The drying component includes a 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 and is connected to the processing chamber. The airflow control component is connected to the air supply channel. The heater is disposed on the air supply channel.

[0018] Optionally, the post-processing unit is provided with an exhaust assembly for connecting the processing chamber and the outside of the post-processing unit.

[0019] Optionally, the post-processing module includes a post-curing component for performing the post-curing process on the printed part. The post-curing component includes a curing lamp disposed on the inner wall of the post-processing unit, which is used to irradiate the printed part in the processing chamber.

[0020] Optionally, the 3D printing system includes a control module that is signal-connected to the printing module, the post-processing module, and the transmission mechanism.

[0021] A 3D printer, applied to any of the above-described 3D printing systems, the 3D printer comprising: a printing module for forming the printing material into the printed part; and a transport mechanism for conveying the printed part to the post-processing module.

[0022] Optionally, the printing module further includes a printing platform, a material box, and an optical engine. The material box is used to hold the printing material, and the optical engine is used to form the printing material into the printed part on the printing platform.

[0023] A post-processing device is applied to any of the above-described 3D printing systems. The post-processing device includes: a post-processing module for performing post-processing steps on the printed part; and a transfer mechanism for conveying the printed part from the printing module to the post-processing module.

[0024] Optionally, the post-processing module further includes: a post-processing body, the post-processing body having a processing chamber, the processing chamber having a first opening for the printed part to enter the processing chamber, and the transmission mechanism being 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.

[0025] A control method based on the 3D printing system described above includes: printing, shaping the printing material into the printed part; transporting, conveying the printing platform and the printed part to a post-processing process; and post-processing, performing the post-processing process on the printed part.

[0026] Optionally, the post-processing step further includes: cleaning, spraying cleaning material onto the printed part.

[0027] Optionally, the post-processing step further includes drying, which involves drying the printout using a heated airflow.

[0028] Optionally, the post-processing step further includes: post-curing, performing a post-curing process on the printed part.

[0029] A 3D printing post-processing apparatus includes a post-processing body, a processing chamber and a scraper mechanism disposed in the post-processing body, wherein: the processing chamber has a first opening; the scraper mechanism is used to separate the printed part on the printing platform from the printing platform and allow it to enter the processing chamber through the first opening.

[0030] Optionally, it also includes a carrier component disposed in the processing chamber for carrying the printed parts and a cleaning component disposed in the post-processing body for applying cleaning material to the surface of the printed parts, wherein the cleaning component is disposed corresponding to the carrier component.

[0031] Optionally, the cleaning assembly includes a spraying assembly for spraying cleaning material onto the surface of the printed part; and / or, the cleaning assembly includes a material holding section for holding the cleaning material.

[0032] Optionally, the cleaning assembly includes the spraying assembly and the material receiving section; the spraying assembly includes a spraying element disposed in the material receiving section and facing the supporting assembly, and an air supply module communicating with the spraying element; the air supply module includes an air supply channel and an airflow control component; the air supply channel communicates the processing chamber with the outside of the post-processing device, and the airflow control component is disposed in the air supply channel; or, the spraying assembly includes a spraying element disposed in the material receiving section and facing the supporting assembly; the spraying element is communicating with a spraying source; the spraying source pressurizes cleaning material onto the spraying element through a spraying pump; the spraying source includes the material receiving section; the material receiving section has an outlet; the outlet is communicating with the spraying element through a spraying channel; a spraying circuit is formed between the material receiving section, the outlet, and the spraying element; and the spraying pump is disposed in the spraying channel.

[0033] Optionally, a first material holding area is formed at the bottom of the processing chamber, and the material holding part includes the first material holding area, which is provided with the spraying element.

[0034] Optionally, the first material holding area is a recessed area formed by the outward indentation of the bottom surface of the processing chamber.

[0035] Optionally, it also includes a feeding assembly disposed on the post-processing body for feeding cleaning materials into the processing chamber, the feeding assembly being disposed corresponding to the cleaning assembly.

[0036] Optionally, the feeding assembly includes a feeding channel that connects the processing chamber and the feeding source. The connection between the feeding channel and the processing chamber is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning material to the processing chamber through a feeding pump.

[0037] Optionally, the material supply source includes an internal storage tank and / or an external storage tank, and the external storage tank is detachably connected to the 3D printing post-processing device.

[0038] Optionally, it also includes a recovery component disposed in the post-processing body for recovering the cleaning material in the processing chamber, the recovery component including a recovery port corresponding to the material holding part.

[0039] Optionally, the recycling assembly further includes a recycling channel connected to the recycling port, the recycling channel connecting the material supply source and the material holding part.

[0040] Optionally, the carrier assembly includes a carrier for carrying the printed parts, the carrier being rotatably connected to the post-processing body; and / or, the carrier is removably disposed on the post-processing body.

[0041] Optionally, the carrier component includes a carrier for carrying the printed parts. The carrier component is detachably disposed on the post-processing body. The post-processing body is provided with a first drive component. When the carrier component is placed in the working position of the post-processing body, the carrier is rotatably connected to the post-processing body and drives the first drive component.

[0042] Optionally, the first drive assembly includes a first transmission connector rotatably connected to the post-processing unit, and the bearing assembly includes a second transmission connector disposed on the bearing, the first transmission connector having a transmission groove, and the second transmission connector having a transmission protrusion that inserts into the transmission groove; or, the first drive assembly includes a first transmission connector rotatably connected to the post-processing unit, and the bearing assembly includes a second transmission connector disposed on the bearing, the second transmission connector having a transmission groove, and the first transmission connector having a transmission protrusion that inserts into the transmission groove.

[0043] Optionally, the post-processing unit is provided with a slot that communicates through the transmission groove of the first transmission connector; or, the post-processing unit is provided with a plug that is inserted into the transmission groove of the second transmission connector.

[0044] Optionally, the carrier assembly includes a mounting frame, the carrier member is rotatably connected to the mounting frame via the second transmission connector, and the carrier assembly is detachably mounted on the post-processing unit via the mounting frame; or, the carrier assembly includes a mounting frame, the carrier member is rotatably connected to the mounting frame via the second transmission connector, the mounting frame has a plug that engages with the transmission groove of the first transmission connector, and the carrier assembly is detachably mounted on the post-processing unit via the mounting frame; or, the carrier assembly includes a mounting frame, the carrier member is rotatably connected to the mounting frame via the second transmission connector, the mounting frame has a slot that communicates through the transmission groove of the second transmission connector, and the carrier assembly is detachably mounted on the post-processing unit via the mounting frame.

[0045] Optionally, the carrier is a cylindrical body, a spherical body, a clamp, a bracket, a tray, a support platform, or a frame; and / or, the carrier has a hollow structure.

[0046] Optionally, the support member includes a first frame member having a second opening and a second frame member surrounding the second opening, the first frame member and the second frame member being configured to adjust the opening and closing of the second opening by relative rotation and / or movement of the two, the second opening being corresponding to the first opening.

[0047] Optionally, the carrier includes a first frame member with a second opening and a second frame member surrounding the second opening. The two frame members are configured to adjust the opening and closing of the second opening by relative rotation and / or movement. The second opening corresponds to the first opening. The post-processing unit is provided with a second driving assembly for driving the two frame members to rotate relative to each other and / or move to adjust the opening and closing of the second opening. Alternatively, the carrier includes a first frame member with a second opening and a second frame member surrounding the second opening. The two frame members are configured to adjust the opening and closing of the second opening by relative rotation around the rotation center line of the carrier. The second opening corresponds to the first opening.

[0048] Optionally, the carrier includes a first frame member having a second opening and a second frame member surrounding the second opening. The two frame members are configured to adjust the opening and closing of the second opening by rotating relative to each other around the rotation center line of the carrier. The second opening corresponds to the first opening. Two first drive assemblies are provided. The first frame member and the second frame member are respectively provided with second transmission connectors. The first frame member is driven to one of the first drive assemblies through the second transmission connectors, and the second frame member is driven to the other first drive assembly through the second transmission connectors.

[0049] Optionally, the processing chamber has a third opening, and the post-processing unit is provided with an opening and closing door that covers the third opening.

[0050] Optionally, the processing chamber has a third opening in the insertion direction of the carrier component, and the post-processing body is provided with an opening and closing door that covers the third opening.

[0051] Optionally, the scraping mechanism includes a scraper and a third drive assembly, the third drive assembly being used to drive the scraper to move, thereby scraping off the printed parts on the printing platform and allowing the printed parts to enter the processing chamber.

[0052] Optionally, the shovel mechanism further includes a guide assembly, which includes a guide rail disposed on the post-processing body and a slider slidably connected to the guide rail, the slider being connected to the shovel blade.

[0053] Optionally, the shovel mechanism further includes a tensioning assembly for providing elasticity to keep the shovel blade pressed tightly against the printing platform.

[0054] Optionally, the shovel mechanism further includes a shovel fixing block, wherein: the shovel fixing block is throttle-connected to the third drive assembly; the tensioning assembly is connected between the shovel fixing block and the shovel, and is used to provide elasticity to move the shovel away from the shovel fixing block and press it against the printing platform.

[0055] Optionally, the two opposite sides of the shovel along the width direction are a fixed side and a floating side, respectively. The fixed side is rotatably connected to the shovel fixing block, and the floating side is configured to be in close contact with the printing platform under the elastic force of the tensioning assembly.

[0056] Optionally, the floating side has a cutting edge; and / or, the shovel mechanism further includes an adapter shaft, and the fixed side is rotatably connected to the shovel fixing block through the adapter shaft; and / or, the tensioning assembly consists of two sets, respectively connected to both ends of the shovel in the length direction; and / or, the tensioning assembly includes one or more springs or torsion springs.

[0057] Optionally, it also includes a drying assembly disposed on the post-processing unit.

[0058] Optionally, it also includes a drying assembly disposed on the post-processing unit, wherein the spraying element is connected to the air supply module, and the drying assembly includes a heater disposed on the air supply channel.

[0059] Optionally, the first opening mates with the printing platform; and / or, the first opening mates with the printing platform cover; and / or, the first opening mates with the printing platform seal.

[0060] Optionally, the 3D printing post-processing device also includes a curing component.

[0061] A feeding assembly includes an external storage tank detachably connected to the 3D printing post-processing device described in any of the above claims. The external storage tank is connected to the processing chamber via a feeding channel. The external storage tank is provided with a flow channel control module, which includes a feeding control module for controlling the external storage tank to feed cleaning material into the processing chamber.

[0062] Optionally, the external storage bin is connected to the processing chamber via a recycling channel, and the flow channel control module further includes a recycling control module for controlling the external storage bin to recycle the cleaning material into the processing chamber, wherein the feeding channel and the recycling channel are integrated or separate.

[0063] Optionally, the external storage tank has a cleaning agent tank and a recycling tank for holding cleaning materials. The feeding control module includes a feeding pump and a liquid flow control component disposed on the flow channel between the cleaning agent tank and the treatment chamber. The recycling control module includes a return pump and a liquid flow control component disposed on the flow channel between the recycling tank and the treatment chamber. The feeding pump and the return pump are either integrated or separate.

[0064] Optionally, multiple cleaning agent tanks are provided, the feeding pump is provided on the flow channel between each cleaning agent tank and the treatment chamber, and each flow channel between the cleaning agent tank and the treatment chamber is provided with a liquid flow control component.

[0065] Optionally, the external storage box includes a base and a box body detachably connected to the base, a guide assembly structure is provided between the base and the box body, and the box body includes the cleaning agent bucket and the recycling bucket.

[0066] Optionally, both the feeding control module and the recycling control module are disposed on the base;

[0067] The feeding control module further includes a cleaning agent inlet, a post-processing unit interface, a feeding pump inlet pipe, and a feeding pump outlet pipe. The base is provided with an external storage tank cleaning agent inlet connected to the cleaning agent tank. The cleaning agent inlet is connected to the external storage tank cleaning agent inlet. The post-processing unit interface is connected to the feeding channel. The inlet of the feeding pump is connected to the cleaning agent inlet through the feeding pump inlet pipe, and the outlet of the feeding pump is connected to the post-processing unit interface through the feeding pump outlet pipe. A flow control component for controlling the connection between the cleaning agent inlet and the feeding pump inlet pipe is provided between the cleaning agent inlet and the feeding pump inlet pipe. A flow control component for controlling the connection between the post-processing unit interface and the feeding pump outlet pipe is also provided between the post-processing unit interface and the feeding pump outlet pipe. The recycling control module further includes a recycling liquid outlet, a recycling liquid inlet, a return pump inlet pipe, and a return pump outlet pipe. The base is provided with an external storage tank cleaning agent inlet connected to the external storage tank. The system includes a recycle liquid outlet port connected to an external storage tank, a recycle liquid inlet port connected to the recycle channel, an inlet port connected to the recycle pump via a recycle pump inlet pipe, and an outlet port connected to the recycle liquid outlet port via a recycle pump outlet pipe. A device is provided between the recycle liquid inlet port and the recycle pump inlet pipe for controlling the connection and disconnection between them. The aforementioned flow control component is provided between the recovered liquid outlet port and the return pump outlet pipe for controlling the connection and disconnection between the recovered liquid outlet port and the return pump outlet pipe; wherein, when the feeding channel and the recovery channel are integrally formed, the post-processing body interface and the recovered liquid inlet interface are integrally formed; when the feeding pump and the return pump are integrally formed, the feeding pump inlet pipe and the return pump inlet pipe are integrally formed, and the feeding pump outlet pipe and the return pump outlet pipe are integrally formed.

[0068] Optionally, the cleaning agent tank and the recycling tank are integrated, or the cleaning agent tank and the recycling tank are separate units.

[0069] A 3D printing system includes a 3D printer, a conveying device, and a 3D printing post-processing device as described in any one of the above, wherein: the 3D printer includes a printer body and a printing platform disposed on the printer body, and the conveying device is connected between the 3D printer and the 3D printing post-processing device and is used to realize the transfer of the printing platform between the printer body and the 3D printing post-processing device. Beneficial effects:

[0070] In the first aspect of this application, 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.

[0071] In the second aspect of this application, by integrating a transfer mechanism capable of moving printed parts onto a 3D printer, the 3D printer is able to have the function of transporting printed 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 printed parts to the post-processing module, thus ensuring production efficiency.

[0072] In the third aspect of this application, by directly integrating the transfer 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.

[0073] In the fourth aspect of this application, 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.

[0074] The feeding assembly provided in this application includes an external material storage tank detachably connected to the 3D printing post-processing device. The external material storage tank is connected to the processing chamber via a feeding channel. The external material storage tank is equipped with a flow channel control module, which includes a feeding control module for controlling the feeding of cleaning material from the external material storage tank into the processing chamber. The installation and disassembly of the external material storage tank to the 3D printing post-processing device are convenient, eliminating the need for manual control of the cleaning agent injection volume, making it easy to use and highly efficient in cleaning. Attached Figure Description

[0075] Figure 1 is a flowchart of the operation of the 3D printing system provided in the embodiment of this application.

[0076] Figure 2 is a top view of the 3D printing system provided in an embodiment of this application.

[0077] Figure 3 is a schematic diagram of the structure of the 3D printing system provided in the embodiment of this application.

[0078] Figure 4 is a schematic diagram of the transmission mechanism provided in an embodiment of this application.

[0079] Figure 5 is an exploded view of the transmission mechanism provided in an embodiment of this application.

[0080] Figure 6 is a schematic diagram of the structure of the post-processing module provided in an embodiment of this application.

[0081] Figure 7 is a longitudinal cross-sectional schematic diagram of the post-processing module and printing platform provided in the embodiments of this application.

[0082] Figure 8 is a three-dimensional structural diagram of the 3D printing post-processing device and printing platform provided in the embodiments of this application.

[0083] Figure 9 is a three-dimensional structural diagram of the 3D printing post-processing device provided in the embodiment of this application after the top wall is removed.

[0084] Figure 10 is a three-dimensional structural diagram of the sprayed part provided in the embodiment of this application.

[0085] Figure 11 is a three-dimensional structural schematic diagram of the shovel mechanism provided in the embodiment of this application.

[0086] Figure 12 is an exploded view of the shovel mechanism provided in the embodiment of this application.

[0087] Figure 13 is a partial top view of the shovel mechanism provided in an embodiment of this application.

[0088] Figure 14 is a cross-sectional view of Figure 13 at point AA.

[0089] Figure 15 is a cross-sectional view of Figure 13 at point BB.

[0090] Figure 16 is a three-dimensional structural schematic diagram of the 3D printing post-processing device provided in the embodiment of this application.

[0091] Figure 17 is an exploded view of the 3D printing post-processing apparatus provided in the embodiments of this application.

[0092] Figure 18 is a schematic diagram of the internal structure of the processing chamber provided in an embodiment of this application.

[0093] Figure 19 is an exploded view of the carrier component and the first driving component provided in the embodiments of this application.

[0094] Figure 20 is a schematic diagram of the structure of the bearing component and the first driving component provided in the embodiment of this application when the second opening is closed.

[0095] Figure 21 is a schematic diagram of the structure of the carrier component and the first drive component provided in the embodiment of this application when the second opening is open.

[0096] Figure 22 is a schematic diagram of the state when the carrier component provided in the embodiment of this application is placed into or removed from the post-processing body.

[0097] Figure 23 is an enlarged view of point A in Figure 22.

[0098] Figure 24 is an enlarged view of point B in Figure 22.

[0099] Figure 25 is a schematic diagram of the structure of the guide groove and transmission groove provided in the embodiment of this application when they are in a cross state.

[0100] Figure 26 is a schematic diagram of the flow channel control module structure provided in the embodiment of this application.

[0101] Figure 27 is a schematic diagram of the external storage box structure provided in an embodiment of this application.

[0102] Figure 28 is a schematic diagram of the base structure provided in an embodiment of this application.

[0103] Figure 29 is an exploded view of the external storage box provided in an embodiment of this application.

[0104] Figure 30 is a schematic diagram of the internal structure of the processing chamber from another perspective, according to an embodiment of this application.

[0105] Figure 31 is a top view of the internal structure of the processing chamber provided in an embodiment of this application.

[0106] Figure 32 is a schematic diagram of the external structure of the post-processing unit provided in an embodiment of this application.

[0107] Figure 33 is a flow channel control logic diagram of the post-processing device for cleaning process provided in an embodiment of this application. Detailed Implementation

[0108] The present application 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 application 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 application, not the entire structure.

[0109] In the description of this application, unless otherwise expressly 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 application based on the specific circumstances.

[0110] In this application, unless otherwise expressly 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.

[0111] In the description of this application, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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, and therefore should not be construed as a limitation of this application. In addition, the terms "first" and "second" are used only for descriptive distinction and have no special meaning.

[0112] Currently, the development trend of 3D printing equipment is to integrate more functions to achieve automated intelligent manufacturing, thereby reducing reliance on human labor.

[0113] However, 3D printed products in related technologies 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 the 3D printing system and limits production efficiency. Furthermore, the post-processing module in these technologies consists of multiple independently distributed devices with different functions, making the entire post-processing process cumbersome, costly, bulky, and inconvenient to disassemble and move.

[0114] Please refer to Figures 1-3. A first aspect of this application relates to a 3D printing system, and more particularly to a 3D printing system in the field of additive manufacturing. 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 a printed part from printing material; the post-processing module 2 is used to perform one or more of the following processes on the printed part: a scraping process, 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. In some embodiments, the printing module 1 and the post-processing module 2 are arranged side-by-side. In some embodiments, the printing module 1 and the post-processing module 2 are arranged adjacent to each other side-by-side. In some embodiments, the printing module 1, the post-processing module 2, and the transport mechanism 2a are integrated and all located within the system body.

[0115] 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.

[0116] Printing module 1 is primarily 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 precisely control the opening and closing of the resin bottle opening via a silicone valve. 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 ensuring 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 at the end of the screw 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.

[0117] Post-processing module 2 integrates multiple post-processing functions for the printed parts. It can perform one or more of the following processes: scraping, cleaning, drying, and post-curing. This high degree of integration ensures the compact structure of the entire 3D printing system. Furthermore, multiple post-processing operations can be completed directly within the same module, eliminating the need for manual handling of the printed parts on the printing platform 3 and preventing operators from directly contacting the parts, thus freeing up their hands and ensuring high efficiency in post-processing.

[0118] 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 it 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.

[0119] 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.

[0120] 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, reducing or even avoiding manual intervention and lowering labor costs; the degree of automation and integration is significantly improved, effectively increasing production efficiency and capacity, and the functions of the entire 3D printing system are more comprehensive.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] Referring to Figures 2-5, 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.

[0126] 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.

[0127] In some embodiments, the transmission mechanism 2a includes a horizontal transmission component and a vertical transmission component. One end of the horizontal transmission component is correspondingly disposed with respect to the 3D printer, and the other end is correspondingly disposed with respect to the post-processing module. The vertical transmission component is disposed on the horizontal transmission component and is driven to move horizontally by the horizontal transmission component. The printing platform is disposed on the vertical transmission component and is driven to move vertically by the vertical transmission component. Through the cooperation of the horizontal and vertical transmission components, the printing platform can move to the printer body and perform vertical movement within the printer body to achieve printing, and can also move to the post-processing module and perform vertical movement within the post-processing module to seal the printing platform at the first opening and then detach it from the first opening. In this embodiment, the first driving component is the vertical transmission component, and the second driving component is the horizontal transmission component. Of course, the first driving component can also be the horizontal transmission component, and the second driving component can be the vertical transmission component.

[0128] 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.

[0129] Optionally, 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 guide 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.

[0130] 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.

[0131] 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 214a is installed in the first mounting hole 331, and a first lead screw 213a is threadedly connected 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. Optionally, 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.

[0132] 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.

[0133] In this embodiment, the second mounting base 224a 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 2111a 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.

[0134] Optionally, 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 guide 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.

[0135] 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 second guide rails 225a and the two second sliders 226a, which improves the movement accuracy and connection strength of the printing platform 3 along the extension direction of the second lead screw 222a.

[0136] 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.

[0137] 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.

[0138] 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 causes the first drive component 21a to rotate in a horizontal plane.

[0139] Optionally, the first drive component 21a further includes a first limiting member, and the second drive component 22a includes a second limiting member.

[0140] 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.

[0141] Optionally, 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 form of the two is not limited to these.

[0142] In some embodiments, the transmission mechanism 2a is a multi-degree-of-freedom robot. The moving end of the multi-degree-of-freedom robot is equipped with a gripper, which can grip the printing platform 3. Then, the robotic arm of the multi-degree-of-freedom robot drives the printing platform 3 to rotate and move in space.

[0143] Please refer to Figures 6 and 7. Optionally, the post-processing module 2 includes a post-processing body 21. The post-processing body 21 is provided with 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.

[0144] In some embodiments, 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.

[0145] In this embodiment, the shape of the first opening 22 is adapted to the shape of the printing platform 3.

[0146] Optionally, the post-processing module 2 further includes a scraping mechanism for separating the printed part from the printing platform and allowing it to enter the processing chamber through the first opening. The scraping mechanism includes a scraper 24 and a third drive assembly 240. 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; in some embodiments, the scraping mechanism may also include a tensioning assembly 25 for providing elasticity to keep the scraper 24 in contact with the printing platform 3.

[0147] The post-processing module works as follows: After printing is completed, the printing platform 3 is inserted into the first opening 22. At this time, the printed part (the dotted area in Figure 7 is the printed part) is stuck to the bottom of the printing platform 3, and the second opening 2611 of the carrier is facing upward and towards the first opening 22. The scraper 24 can move horizontally along the printing platform 3 to scrape off the printed part on the printing platform 3 and drop it into the processing chamber 211. After that, the printed part completes the processing operation in the processing chamber 211.

[0148] In some embodiments, referring to Figures 7 and 8, the post-processing module includes a post-processing body 21, a processing chamber 211 and a scraper mechanism disposed on the post-processing body 21, wherein the processing chamber 211 has a first opening 22; the scraper mechanism is used to separate the printed part on the printing platform 3 from the printing platform and allow it to enter the processing chamber 211 through the first opening 22.

[0149] The working process of the 3D printing post-processing module provided in this application is as follows: After printing is completed, the printing platform 3 and the printed parts attached to it are moved together to the first opening 22 of the processing chamber 211; then, the scraping mechanism separates the printed parts on the printing platform 3 from the printing platform, and the separated printed parts naturally fall into the processing chamber 211 through the first opening 22 under the action of gravity. After that, the printed parts complete the processing operation in the processing chamber 211.

[0150] Referring to Figures 11 and 12, optionally, a third drive assembly 240 is provided at each end of the blade 24 along its length to make the blade 24 move more smoothly. In some embodiments, the blade mechanism further includes a guide assembly, which includes a slide rail 241 disposed on the post-processing body 21 and a slider 242 slidably connected to the slide rail, with the slider connected to the blade 24. Optionally, the guide assembly is provided at each end of the blade 24 along its length, and the guide assembly can limit the movement trajectory of the blade 24 to prevent the blade 24 from shaking. It should be noted that providing only one third drive assembly can also achieve the purpose of driving the blade 24 to move.

[0151] Furthermore, the tensioning assembly 25 provides an elastic compressive force to keep the scraper 24 tightly 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. Without external force, the height of the working end of the scraper 24 is not lower than the height of the forming surface of the printing platform 3 when it is closed by the first opening 22. When the printing platform 3 is closed by 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 causes the working end of the scraper 24 to tightly adhere to 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. In some embodiments, the scraper 24 is rotatably connected to the slider 242. The tensioning assembly 25 can also be an elastic element such as a mechanical spring, a mechanical torsion spring, or an air spring.

[0152] Referring again to Figures 11, 12, 16, and 17, in this embodiment, the third drive assembly 240 includes a third motor 2401, a lead screw 2402, a third drive wheel 2403, a third driven wheel 2404, and a third belt 2405. The body of the third motor 2401 is mounted on the post-processing body 21, and the third drive wheel 2403 is mounted on the output shaft of the motor. The lead screw 2402 extends along the moving direction of the scraper 24 and is rotatably mounted on the post-processing body 21. One end of the lead screw 2402 is mounted on the third driven wheel 2404, and one end of the scraper 24 is directly or indirectly screwed onto the lead screw 2402. In this embodiment, the scraper mechanism includes a scraper fixing block 250 screwed onto the lead screw 2402, and one end of the scraper 24 is indirectly screwed onto the lead screw 2402 through the scraper fixing block 250. The third belt 2405 connects the third drive wheel 2403 and the third driven wheel 2404. It should be noted that the blade fixing block 250 is fixedly connected to the slider 242. One end of the elastic element in the tensioning assembly 25 is located on the blade 24, and the other end can be located on the blade fixing block 250. The blade 24 can also be rotatably connected to the blade fixing block 250.

[0153] In some embodiments, the third drive assembly 240 further includes a tensioning wheel 2406, which is rotatably mounted on the post-processing body 21 and abuts against the third belt 2405 to tension the third belt 2405.

[0154] During operation, the aforementioned scraping mechanism uses a third motor 2401 to drive a lead screw 2402 to rotate via a third drive wheel 2403, a third driven wheel 2404, and a third belt 2405. The lead screw 2402 then drives the scraper 24 to move horizontally. As the scraper 24 slowly moves horizontally, it scrapes off the printed parts from the printing platform 3, which then fall onto the support. The radius of the third driven wheel 2404 is larger than that of the third drive wheel 2403. Due to the larger radius of the third driven wheel 2404, its rotational speed is lower than that of the third drive wheel 2403. This design increases the output torque. During automatic scraping, it may encounter printed parts that are firmly stuck together, requiring the third driven wheel 2404 to output greater torque to drive the lead screw 2402 to rotate, allowing the scraper 24 to scrape off the firmly stuck printed parts. Furthermore, the slower rotational speed improves the stability of the transmission during the scraping process.

[0155] In other embodiments, the third drive assembly 240 may also be a hydraulically driven or pneumatically driven assembly, etc. The third drive assembly 240 includes a piston cylinder (which may be a pneumatic piston cylinder or a hydraulic piston cylinder). The cylinder body of the piston cylinder is mounted on the post-processing unit 21, and the piston rod of the piston cylinder is connected to the scraper 24. Thus, the piston rod of the piston cylinder drives the scraper 24 to move horizontally during the extension and retraction process. The third drive assembly also includes a third limiting member, which may be a limit switch. The third drive assembly is signal-connected to the control module. When the first drive assembly 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 assembly to start. The third drive assembly drives the scraper 24 to begin moving along the forming surface of the printing platform 3 to separate the printed part from the printing platform.

[0156] Referring to Figures 13 to 15, in this embodiment, the tensioning assembly 25 includes a compression spring, with its two ends connected to the scraper fixing block 250 and the scraper 24, respectively. Both the scraper fixing block 250 and the scraper 24 have spring limiting grooves on their opposite sides. The two ends of the compression spring are inserted into the spring limiting grooves on the scraper fixing block 250 and the scraper 24, respectively. These two spring limiting grooves limit the two ends of the compression spring, preventing it from falling off.

[0157] In this embodiment, the two opposite sides of the scraper 24 along the width direction are a fixed side and a floating side, respectively. The fixed side is rotatably connected to the scraper fixing block 250, and the floating side is configured to be in close contact with the printing platform 3 under the elastic force of the elastic element. In the above structure, the scraper 24 and the printing platform 3 are in line contact during the scraping process (i.e., only the edge of the floating side contacts the printing platform 3).

[0158] In some other embodiments, the scraper 24 has a scraping surface for contacting the printing platform 3, which is configured to be in complete contact with the printing platform 3 under the elastic force of an elastic element. In the above embodiments, the scraper 24 and the printing platform 3 are in surface contact during the scraping process (i.e., the scraping surface is in complete contact with the printing platform 3).

[0159] Optionally, the floating side edge of the scraper 24 is provided with a cutting edge 2411; and / or, the scraping mechanism further includes a transition shaft 246, through which the fixed side of the scraper 24 is rotatably connected to the scraper fixing block 250. In this embodiment, the floating side edge of the scraper 24 is provided with a cutting edge 2411. During the scraping process, the cutting edge 2411 can closely adhere to the material-carrying surface of the printing platform 3 under the elastic force of the tensioning component 25. Because the cutting edge 2411 is relatively sharp, it can easily scrape off the material on the printing platform 3. The scraping mechanism also includes a transition shaft 246, which extends along the length of the scraper 24 and passes through the fixed side of the scraper 24 and the scraper fixing block 250, thereby allowing the floating side of the scraper 24 to rotate around the fixed side of the scraper 24.

[0160] With the above structure, when the printing platform 3 is sealed in the first opening 22, the printing platform 3 presses down on the floating side of the scraper 24. At this time, the tensioning component 25 exerts a reverse force on the scraper 24, causing the floating side of the scraper 24 to adhere tightly to the forming surface of the printing platform 3. Since the edge of the floating side of the scraper 24 is provided with a cutting edge 2411, the cutting edge 2411 can adhere tightly to the forming surface of the printing platform 3 under the elastic force of the tensioning component 25 during the scraping process. Because the cutting edge 2411 is relatively sharp, it can easily scrape off the printed parts from the printing platform 3.

[0161] As described above, the 3D printing post-processing module provided in this application integrates the processing chamber and the part-removing mechanism on the post-processing body, making the overall structure of the module compact and space-saving, and facilitating easy disassembly and relocation. During operation, the printed part, after separating from the printing platform, naturally falls into the processing chamber, eliminating the need for manual removal of the printed part from the printing platform and placement in the processing chamber, thereby simplifying the post-processing process and reducing manual labor.

[0162] Referring again to Figures 8 and 7, in some embodiments, the post-processing unit 21 includes two opposing side walls 13, a top wall 12 at the top of the side walls 13, a bottom wall 14 below the side walls 13, a rear wall 15 behind the side walls 13, and a front wall in front of the side walls 13. The two side walls 13, the top wall 12, the bottom wall 14, the rear wall 15, and the front wall form a processing chamber 211. A first opening 22 for inserting the printing platform 3 is provided on the top of the processing chamber 211 (on the top wall 12). In the above structure, since the printed parts complete the post-processing operation within the processing chamber 211, the problem of cleaning materials scattering and splashing during the cleaning process is avoided. It should be noted that the shape of the processing chamber 211 is not limited; it can be a cuboid, a cylinder, a frustum, etc. The location of the first opening 22 is not limited to the top of the processing chamber 211; it can be located on the side of the processing chamber 211.

[0163] In some embodiments, the processing chamber 211 has a third opening, and the post-processing unit 21 is provided with a door 16 covering the third opening. The third opening and the door 16 covering the third opening are provided on the wall (front wall) of the processing chamber 211. The door 16 is provided with a door handle 161 and / or a viewing window 162. The viewing window 162 can be made of glass or other transparent material. During post-processing, the operator can observe the internal working conditions of the processing chamber 211 through the viewing window 162, facilitating the operator's monitoring of the processing progress. After the printed material is processed, the operator can pull the door handle 161 to open the door 16, allowing the printed material to be retrieved from the third opening. It should be noted that the location of the third opening is not limited to the side of the processing chamber 211; alternatively, the third opening and the door 16 covering the third opening may not be provided, and the printed material can be accessed through the first opening 22.

[0164] In some embodiments, the first opening 22 cooperates with the printing platform 3 so that the printing platform 3 is placed directly at the first opening 22, and the post-processing module performs post-processing operations on the printed parts on the printing platform 3. In some embodiments, the processing chamber 211 needs to be in a closed state during the post-processing process to ensure the environmental conditions and safety of the post-processing operation, etc., and the first opening 22 cooperates with the printing platform 3 as a cover. In some embodiments, in order to improve the sealing of the processing chamber 211 during the post-processing of the printed parts and ensure the environmental conditions and safety of the post-processing operation, the first opening 22 can be sealed with the printing platform 3, that is, the inner wall surface of the first opening 22 can be sealed and fitted with the peripheral surface of the printing platform 3.

[0165] In some embodiments, the printing platform 3 is limited to the first opening 22; in one embodiment, the post-processing unit 21 is provided with a driving component for driving the printing platform 3 to move, the driving component includes a motor that drives the printing platform 3 to move in a transmission cooperation with the printing platform 3, and the post-processing unit 21 is provided with a limit switch for detecting whether the printing platform 3 has moved to the first opening 22; the limited cooperation between the printing platform 3 and the first opening can be achieved not only by the limit switch, but also by setting a mechanical limit structure.

[0166] Furthermore, a sealing ring 23 is provided on the inner wall surface of the first opening 22 and / or the peripheral surface of the printing platform 3. For example, one or more sealing rings 23 are provided on the inner wall surface of the first opening 22, and the sealing rings 23 are used to achieve a tight fit between the first opening 22 and the printing platform 3, thereby improving the sealing performance at the connection point between the two.

[0167] Optionally, the post-processing module 2 further includes a carrier assembly disposed in the processing chamber 211 for carrying the printed parts and a cleaning mechanism disposed in the post-processing body 21 for applying cleaning material to the surface of the printed parts. The cleaning mechanism is correspondingly disposed to the carrier assembly. The cleaning mechanism is used to perform a cleaning process on the printed parts. In some embodiments, the cleaning mechanism includes a spraying assembly for spraying cleaning material onto the surface of the printed parts.

[0168] The carrier assembly is located inside the processing chamber 211 and is used to carry the printed parts. The carrier assembly is correspondingly set 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 provided 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. It should be noted that the material supply source can be located in the post-processing body 21, in the processing chamber 211, or outside the processing chamber 211. It can be a combined material supply source that is combined with the processing chamber 211 and the outside of the processing chamber 211, or it can be an independent material supply source set separately in the post-processing module.

[0169] In some embodiments, the cleaning mechanism includes a material holding section 213 for holding cleaning material. In some embodiments, the material holding section can serve as a material supply source, and the spraying assembly is connected to the material holding section. The cleaning material held in the material holding section is sprayed onto the surface of the printed part by the spraying assembly to clean the residual resin on the surface of the printed part. It should be noted that either the spraying assembly or the material holding section can be provided to achieve cleaning of the surface of the printed part; in some embodiments, the spraying assembly is omitted and only the material holding section is provided. The material holding section is configured in conjunction with the carrier assembly, and the printed part located on the carrier assembly can be immersed in the cleaning material in the material holding section to clean the residual resin on the surface; in some embodiments, the material holding section is omitted and only the spraying assembly is provided. The spraying assembly is connected to a material supply source outside the processing room.

[0170] In some embodiments, the cleaning mechanism includes a material holding section, a spraying assembly, a feeding assembly, and a recovery assembly. The material holding section 213 is used to hold cleaning material; the spraying assembly is used to spray the cleaning material onto the surface of the printed part, and the spraying assembly includes a spraying element disposed in the material holding section 213 and facing the bearing assembly, and an air supply module 28 communicating with the spraying element; the air supply module 28 is used to feed cleaning material into the material holding section 213; and the recovery assembly is used to recover the cleaning material in the processing chamber 211.

[0171] 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.

[0172] In this embodiment, a drive assembly is connected to the cleaning frame 26. The drive assembly 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.

[0173] In some embodiments, the material holding section 213 can serve as a material supply source. The spraying assembly is connected to the material holding section 213, and the cleaning material contained in the material holding section 213 is sprayed onto the surface of the printed part by the spraying assembly to clean the residual resin on the surface of the printed part. It should be noted that only one of the spraying assembly and the material holding section is required to clean the surface of the printed part. In some embodiments, the spraying assembly is omitted, and only the material holding section is provided. The material holding section is configured in conjunction with the carrier assembly, and the printed part located on the carrier assembly 20 can be immersed in the cleaning material in the material holding section to clean the residual resin on the surface. In some embodiments, the material holding section is omitted, and only the spraying assembly is provided. The spraying assembly is connected to a material supply source outside the processing chamber 211. In some embodiments, the spraying assembly includes a spraying element disposed in the material holding section 213 and facing the carrier assembly, and an air supply module 28 connected to the spraying element. The air supply module 28 sprays gas into the cleaning material in the material holding section through the spraying element, and the cleaning material in the material holding section is sprayed onto the printed part located on the carrier assembly by the gas spray. The cleaning material is contained in the material holding section and sprayed onto the printed parts by gas jets, which can greatly reduce the amount of cleaning material used. The air supply module 28 includes an air supply channel 281 and an airflow control component 282 located in the post-processing unit 21. 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 air supply channel 281 connects the processing chamber 211 to the outside of the post-processing module. The airflow control component 282 is located in the air supply channel 281 and is used to deliver the cleaning material from outside the post-processing module into the processing chamber 211. The gas is sprayed along the air supply channel 281 onto the cleaning material in the material holding section 213 through the spray nozzle, and sprayed onto the surface of the printed parts by the airflow, so that the cleaning material is evenly and finely distributed on the surface of the printed parts, thereby achieving cleaning of the printed parts. The airflow control component 282 can be a blower or a fan, etc. In some embodiments, the gas supply channel 281 is provided with a first control valve, which may be a solenoid valve, and the first control valve controls the opening and closing of the gas supply channel 281.

[0174] In some embodiments, as shown in Figures 31 and 32, the spraying assembly includes a spraying element disposed in the material holding section and facing the bearing assembly. The spraying element is connected to the spraying source, and the spraying source pressurizes the cleaning material to the spraying element through the spraying pump 146. The spraying source includes a material holding section, which is provided with an outlet 144. The outlet 144 is connected to the spraying element 9 through a spraying channel 145. A spraying circuit is formed between the material holding section, the outlet 144 and the spraying element 9. The spraying pump is disposed in the spraying channel.

[0175] Referring to Figure 18, in some embodiments, a first material holding area is formed at the bottom of the processing chamber 211. The material holding part includes the first material holding area, which is equipped with a spraying element 9. The first material holding area is located at the bottom of the processing chamber 211, and the carrier assembly is located above the first material holding area. The cleaning material is placed in the first material holding area and sprayed upwards onto the printed parts of the carrier assembly via gas jets to achieve spray cleaning. The cleaning material on the surface of the printed parts falls back down to the first material holding area located below the carrier assembly due to gravity. The cleaning material in the first material holding area can be recycled for cleaning the printed parts, so that the residual resin on the surface of the printed parts can be cleaned with a small amount of cleaning material. In some embodiments, the first material holding area is a recessed area 143 formed by the outward indentation of the bottom surface of the processing chamber 211. In one embodiment, the recessed area 143 is inverted cone-shaped. It should be noted that the printed parts located on the carrier assembly can be immersed in the cleaning material in the first material holding area to clean the residual resin on the surface; the material holding part may also include a second material holding area, the position of which is not limited, and of course, only the second material holding area can be set, and the first material holding area can be omitted.

[0176] 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. 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.

[0177] 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.

[0178] In some embodiments, a first vent is formed between the air supply channel 281 and the processing chamber 211, and the spraying element 9 is disposed at the first vent. Referring to FIG10, the spraying element 9 is a rubber part sealed at the first vent. The spraying element 9 has a ventilation gap. The ventilation gap is provided so that the gas sprayed through the ventilation gap of the spraying element 9 reaches a certain pressure, forming a spraying effect on the cleaning material, so that the cleaning material presents a relatively fine, uniform and dispersed spray state. On the other hand, it prevents the cleaning material in the processing chamber 211 from flowing back into the air supply channel 281.

[0179] In one embodiment, the spraying component 9 includes a tube body and an end cap covering one end of the tube body. The end cap has a ventilation slit, which can be straight, cross-shaped, or composed of multiple intersecting lines. When there is no airflow in the air supply channel 281 or the airflow pressure does not reach a set value, the ventilation slit closes, thereby preventing the cleaning material in the treatment chamber 211 from flowing back into the air supply channel 281. When the airflow pressure in the air supply channel 281 reaches the set value, the airflow forces open the ventilation slit and enters the treatment chamber 211 through the ventilation slit, thus creating a spraying effect on the cleaning material.

[0180] In some embodiments, the top of the post-processing unit 21 is provided with a ventilation channel 18 communicating with the processing chamber 211. The ventilation channel 18 balances the internal and external air pressures of the processing chamber 211, preventing excessive internal pressure and ensuring airflow within the processing chamber 211. In this embodiment, the ventilation channel 18 is a baffle-type ventilation channel (the ventilation channel 18 has a certain length and is bent), to ensure airflow within the processing chamber 211 while meeting the airtightness requirements, and to prevent the cleaning material from being trapped and flowing back into the processing chamber 211 without being carried out by the gas. Of course, the ventilation channel 18 may be only a third ventilation port, or it may include a third ventilation port and a pressure relief valve located at the ventilation port; the specific method is not limited to this.

[0181] Referring to Figure 9, the post-processing module further includes a feeding assembly 6 disposed on the post-processing body 21 for feeding cleaning materials into the processing chamber 211. The feeding assembly 6 includes an internal storage tank 61, a feeding channel 62, and a feeding pump 63. The feeding channel 62 connects the internal storage tank 61 and the processing chamber 211, and the connection port between the feeding channel 62 and the processing chamber 211 corresponds to the cleaning assembly. The feeding pump 63 is disposed on the feeding channel 62. In the above structure, the internal storage tank 61 is used to store cleaning materials, and the feeding pump 63 is used to feed the cleaning materials in the internal storage tank 61 into the processing chamber 211 through the feeding channel 62. In some embodiments, the feeding channel 62 is provided with a second control valve, which can be a solenoid valve, and the second control valve controls the opening and closing of the feeding channel 62. Optionally, the cleaning materials include, but are not limited to, at least one of the following: water, ethanol, acetone, isopropanol, or tripropylene glycol monomethyl ether, etc. This application does not limit the type of cleaning materials.

[0182] In some embodiments, the connection between the feeding channel 62 and the processing chamber 211 corresponds to the spraying component of the cleaning assembly, and the internal storage tank 61 of the feeding assembly 6 serves as the feeding source. In some embodiments, the connection between the feeding channel 62 and the processing chamber 211 corresponds to the material holding part of the cleaning assembly, and the internal storage tank 61 and the material holding part of the feeding assembly 6 form a combined feeding source. The cleaning material is fed from the internal storage tank 61 into the material holding part, and the cleaning of the printed parts is achieved through the cleaning material in the material holding part. Referring to FIG18, in this embodiment, a feeding port 151 is provided on the upper side of the processing chamber 211 (specifically, the upper side of the rear wall 15), and the feeding channel 62 is connected to the processing chamber 211 through the feeding port 151. The feeding port is the connection between the feeding channel 62 and the processing chamber 211. The feed pump 63 sends the cleaning material in the internal storage tank 61 into the processing chamber 211 through the feed port 151. The cleaning material falls from the feed port 151 into the material holding section located at the bottom of the processing chamber 211.

[0183] In some embodiments, the recycling component includes a second pipe 274 disposed on the bottom wall of the post-processing unit 21, through which residual cleaning material after cleaning can be recycled. The post-processing unit 21 is externally provided with a feeding component for storing cleaning material. 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 the nozzle 271 into the cleaning frame 26 via the first pipe 273, thereby achieving the cleaning operation of 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.

[0184] Cleaning materials include, but are not limited to, ethanol, acetone, isopropanol, tripropylene glycol monomethyl ether, etc.

[0185] Referring again to Figure 7, in some embodiments, the recycling assembly includes a recycling port 141 corresponding to the material holding section. The recycling assembly also includes a recycling channel 7 connected to the recycling port 141, which connects the internal storage tank 61 and the material holding section. The recycling assembly also includes a recycling control component for controlling the opening and closing of the recycling assembly. In one embodiment, the recycling control component includes a third control valve located in the recycling channel 7. The third control valve can be a solenoid valve or a manual valve, used to open or close the recycling channel 7. During the cleaning process, the third control valve closes and blocks the recycling channel 7, preventing the cleaning material in the material holding section from being discharged through the recycling channel 7. After cleaning, the third control valve opens and connects the recycling channel 7, allowing the cleaning material to flow back into the internal storage tank 61 through the recycling channel 7 for recycling. It should be noted that the recovery port 141 can also be connected to the outside of the post-processing module to discharge the cleaned material from the processing chamber 211 for further processing. One, two, or more recovery ports 141 can be provided corresponding to the material holding section; for example, the first and second material holding areas may each have a recovery port 141. The recovery port 141 is typically located at the bottom of the material holding section to facilitate the collection and recycling of the cleaned material. The recovery port and the discharge port 144 can be integrated or separate.

[0186] In some embodiments, the feeding assembly 6 includes a feeding channel 62, which connects the processing chamber 211 and the feeding source. The connection port between the feeding channel 62 and the processing chamber 211 is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning material to the processing chamber 211 through a feeding pump 63. The spraying source and the feeding source can be two or the same. When the feeding source is a spraying source, the spraying element is located at the connection port. When the material holding part is a spraying source, the connection port and the discharge port 144 can be integrally provided. The feeding source includes an internal storage tank 61 and / or an external storage tank 10, and the external storage tank 10 is detachably connected to the post-processing module.

[0187] 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.

[0188] In some embodiments, the carrier assembly 20 includes a carrier member 200 for carrying the printed parts, the carrier member 200 being rotatably connected to the post-processing unit 21. During post-processing, the rotation of the carrier member 200 causes the printed parts to rotate, enabling the printer to perform post-processing comprehensively, fully, and evenly. Alternatively, the carrier member 200 can be fixedly installed to the post-processing unit 21, whereby the carrier member 200 cannot rotate relative to the post-processing unit 21, thus providing the function of carrying the printed parts.

[0189] In some embodiments, the rotation center line of the carrier 200 is perpendicular to the spraying direction of the aerosol assembly. The carrier 200 drives the printhead to rotate, causing the aerosol assembly to spray cleaning material from multiple directions relative to the printhead. This allows the printhead to be sprayed more comprehensively onto the cleaning material, achieving more thorough cleaning. In some embodiments, the spraying direction is vertical, and the rotation center line of the carrier 200 is horizontal. In some embodiments, the rotation center line of the carrier 200 is parallel to the liquid surface of the cleaning material in the material holding section. The carrier 200 drives the printhead to rotate, allowing more surfaces of the printhead to contact the cleaning material in the material holding section, achieving more thorough cleaning. The rotation center line of the carrier 200 is not limited to the above settings; it can be horizontal, vertical, or in other orientations.

[0190] In some embodiments, the carrier assembly 20 is detachably mounted on the post-processing unit 21. Post-processing is performed with the carrier assembly 20 installed on the post-processing unit 21. After post-processing, the carrier assembly 20 can be removed to retrieve the printed material. The printed material can be easily removed even when the carrier assembly 200 is in the form of a box, frame, or similar shape. Modular replacement of the carrier assembly 20 is also possible, allowing for the replacement of carrier assemblies of the same or different specifications. Alternatively, the carrier assembly 20 can be fixedly mounted to the post-processing unit 21 to provide a support function for the printed material.

[0191] Referring again to Figures 8 and 7, in some embodiments, the post-processing unit 21 is provided with a fourth drive assembly 5, and the carrier 200 is connected to the fourth drive assembly 5 for transmission, and the carrier 200 is driven to rotate by the fourth drive assembly 5.

[0192] In some embodiments, the carrier assembly includes a carrier 200 for carrying printed parts. The carrier assembly is removably disposed on the post-processing body 21. The post-processing body 21 is provided with a fourth drive assembly 5. When the carrier assembly 20 is placed in the working position of the post-processing body 21, the carrier 200 is rotatably connected to the post-processing body 21 and is in transmission cooperation with the fourth drive assembly 5.

[0193] Referring to Figures 19 to 21, in some embodiments, the fourth drive assembly 5 includes a first transmission connector 51 rotatably connected to the post-processing unit 21, and the carrier assembly 20 includes a second transmission connector 202 disposed on the carrier assembly 200. The first transmission connector 51 is provided with a transmission groove 203, and the second transmission connector 202 is provided with a transmission protrusion 52 that inserts into the transmission groove 203. The insertion and engagement of the transmission groove 203 and the transmission protrusion 52 enables the carrier assembly 20 to be easily removed from the post-processing unit 21, and the carrier assembly 20 can also be easily installed on the post-processing unit 21, achieving flexible loading and unloading. With the insertion and engagement of the transmission groove 203 and the transmission protrusion 52, a circumferential relative limit is formed between the first transmission connector 51 and the second transmission connector 202. The rotation of the first transmission connector 51 of the fourth drive assembly 5 drives the second transmission connector 202 to rotate, thereby realizing the rotation of the carrier assembly 200.

[0194] In some embodiments, the post-processing body 21 is provided with a slot that communicates through the transmission groove 203 of the first transmission connector 51. The slot plays a guiding role during the loading and unloading of the bearing assembly 20 in the post-processing body 21, and the bearing assembly 20 can be installed or removed from the post-processing body 21 more conveniently.

[0195] In some embodiments, the carrier assembly 20 includes a mounting bracket 204, and the carrier member 200 is rotatably connected to the mounting bracket 204 via a second transmission connector 202. The mounting bracket 204 is provided with a plug that engages with the transmission groove 203 of the first transmission connector 51. The carrier assembly 20 is detachably mounted on the post-processing unit 21 via the mounting bracket 204. It should be noted that only one of the slots and plugs may be provided, or both may be provided. The provision of plugs and / or slots further improves the guiding function of the carrier assembly 20 during the detachment and repositioning process on the post-processing unit 21. Furthermore, the provision of both plugs and slots can also improve the installation stability of the carrier assembly 20 on the post-processing unit 21. Of course, the absence of both slots and plugs does not affect the installation of the carrier assembly 20 on the post-processing unit 21. It should also be noted that when both slots and plug-ins are set, the transmission groove 203 and the transmission protrusion 52 are inserted and engaged, the slot and plug-in are inserted and engaged, the slot and the transmission protrusion 52 are inserted and engaged, and the plug-in and the transmission groove 203 are inserted and engaged. When the bearing assembly 20 is placed in the working position of the post-processing body 21, the transmission groove 203 and the transmission protrusion 52 are in the inserted and engaged state, and the slot and plug-in are in the inserted and engaged state.

[0196] In some embodiments, the fourth drive assembly 5 includes a first transmission connector 51 rotatably connected to the post-processing body 21, and the carrier assembly 20 includes a second transmission connector 202. The second transmission connector 202 is provided with a transmission groove 203, and the first transmission connector 51 is provided with a transmission protrusion 52 that inserts into the transmission groove 203. The insertion and engagement of the transmission groove 203 and the transmission protrusion 52 enables the carrier assembly 20 to be easily removed from the post-processing body 21 and easily installed on the post-processing body 21, achieving flexible loading and unloading. With the insertion and engagement of the transmission groove 203 and the transmission protrusion 52, the first transmission connector 51 and the second transmission connector 202 form a circumferential relative limit. The rotation of the first transmission connector 51 of the fourth drive assembly 5 drives the second transmission connector 202 to rotate, thereby enabling the carrier assembly 200 to rotate.

[0197] In some embodiments, the post-processing unit 21 is provided with a plug that is inserted into the transmission groove 203 of the second transmission connector 202. The plug plays a guiding role during the loading and unloading of the bearing assembly 20 in the post-processing unit 21, and the bearing assembly 20 can be installed or removed from the post-processing unit 21 more conveniently.

[0198] Referring to Figures 22 to 24, in some embodiments, the carrier assembly 20 includes a mounting frame 204. The carrier member 200 is rotatably connected to the mounting frame 204 via a second transmission connector 202. The mounting frame 204 has a slot that communicates through the transmission groove 203 of the second transmission connector 202. The carrier assembly 20 is detachably mounted on the post-processing unit 21 via the mounting frame 204. It should be noted that the slot and the plug-in may be provided only or both. The provision of the plug-in and / or the slot further improves the guiding function of the carrier assembly 20 during the detachment and repositioning process on the post-processing unit 21. Furthermore, the provision of both the plug-in and the slot can also improve the installation stability of the carrier assembly 20 on the post-processing unit 21. Of course, the absence of both the slot and the plug-in does not affect the installation of the carrier assembly 20 on the post-processing unit 21. It should also be noted that when both slots and plug-ins are set, the transmission groove 203 and the transmission protrusion 52 are inserted and engaged, the slot and plug-in are inserted and engaged, the slot and the transmission protrusion 52 are inserted and engaged, and the plug-in and the transmission groove 203 are inserted and engaged. When the bearing assembly 20 is placed in the working position of the post-processing body 21, the transmission groove 203 and the transmission protrusion 52 are in the inserted and engaged state, and the slot and plug-in are in the inserted and engaged state.

[0199] In some embodiments, when the slot and the transmission groove 203 are in a through-connection state, the slot and the transmission groove 203 are in a straight line (as shown in Figure 23). Of course, the slot and the transmission groove 203 can also be in a curved through-connection state. The through-connection direction of the slot and the transmission groove 203 is not limited to this, as long as it can ensure that the plug and / or the transmission protrusion 52 are inserted into the slot and the transmission groove 203 along the through-connection direction of the slot and the transmission groove 203. In some embodiments, the plug and the transmission protrusion 52 extend in a strip shape along the insertion direction, and the arrangement direction of the plug and the transmission protrusion 52 is consistent with the insertion direction. The shape of the plug and the transmission protrusion 52 is not limited to a strip shape, but can also be a block shape or other shapes. On the one hand, it can ensure that the plug and / or the transmission protrusion 52 are inserted into the slot and the transmission groove 203 along the through-connection direction of the slot and the transmission groove 203. On the other hand, it can realize the transmission cooperation between the first transmission connector 51 and the second transmission connector 202. It should be noted that the first transmission connector 51 can rotate to make the transmission groove 203 and the slot in a through-connected state, or to make the transmission groove 203 and the slot in a misaligned and non-connected state. When the transmission groove 203 and the slot are in a through-connected state, the bearing component 20 can be placed on the post-processing body 21. When the transmission groove 203 and the slot are in a misaligned and non-connected state, the bearing component 20 cannot be taken out of the post-processing body 21 or installed in the working position of the post-processing body 21.

[0200] Referring again to Figures 23 and 24, in some embodiments, one of the carrier component 20 and the post-processing body 21 is provided with a guide groove 2041 (i.e., the slot described above) extending in the insertion direction, and the other is provided with a guide protrusion 131 (i.e., the plug described above) extending in the insertion direction. The guide protrusion 131 can be slidably disposed in the guide groove 2041 in the insertion direction.

[0201] In this embodiment, guide grooves 2041 are respectively provided on both sides of the support assembly 20 in the vertical direction along the insertion direction, and guide protrusions 131 are respectively provided on the two side walls of the processing chamber 211 in the vertical direction along the insertion direction. The guide protrusions 131 are slidably disposed in the guide grooves 2041. By cooperating with the guide grooves 2041 and the guide protrusions 131, the movement trajectory of the mounting frame 204 can be restricted, thereby improving the stability of the mounting frame 204.

[0202] Based on the above structure, the mounting bracket 204 has a third mounting hole 2042 on each side of the vertical direction along the insertion direction, and the third mounting hole 2042 passes through the guide groove 2041 on the same side; the second transmission connector 202 is inserted into the third mounting hole 2042 one by one, and the transmission groove 203 and guide groove 2041 on the same side are configured to cross or be collinear during the rotation of the bearing component 20.

[0203] The processing chamber 211 has four mounting holes on its two side walls perpendicular to the insertion direction, and the four mounting holes pass through the guide protrusion 131 on the same side; the first transmission connector 51 is inserted into the four mounting holes one by one, and the transmission protrusion 52 and the guide protrusion 131 on the same side are configured to cross or be collinear during the rotation of the bearing assembly 20.

[0204] It should be noted that when the guide groove 2041 and transmission groove 203 on the same side, as well as the transmission protrusion 52 and guide ridge 131 on the same side, are all in a collinear state, the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 203 are both parallel to the insertion direction; when the guide groove 2041 and transmission groove 203 on the same side, as well as the transmission protrusion 52 and guide ridge 131 on the same side, are all in a cross state (as shown in Figure 25), the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 203 are both intersecting with the insertion direction.

[0205] Optionally, the carrier 200 can be a cylindrical body, a spherical body, a clamp, a bracket, a tray, a support platform, or a frame. Of course, the structure of the carrier 200 is not limited to these, as long as it can fulfill the function of carrying the printed parts. The carrier component 20 can be a hollow structure, optionally a frame structure or a mesh structure, so that the surface of the printed parts can be fully and thoroughly post-processed. For example, it can facilitate the application of cleaning materials to the surface of the printed parts through the hollow structure during the cleaning process, and it can also facilitate the application of light to the printed parts through the hollow structure during the photocuring post-processing. In addition, the cleaning materials on the surface of the printed parts can fall back into the first material collection area through the hollow structure.

[0206] In some embodiments, the carrier 200 includes two frame members 201, namely a first frame member having a second opening 2611 and a second frame member surrounding the second opening 2611. The two frame members 201 (the first frame member and the second frame member) are configured to adjust the opening and closing of the second opening 2611 by relative rotation and / or movement, and the second opening 2611 is correspondingly disposed with respect to the first opening 22. In some embodiments, the post-processing unit 21 is provided with a fifth drive assembly for driving the two frame members 201 (the first frame member and the second frame member) to rotate and / or move relative to adjust the opening and closing of the second opening 2611. In some embodiments, the post-processing unit 21 is provided with a fifth drive assembly for driving the two frame members 201 (the first frame member and the second frame member) to rotate and / or move so that the second opening 2611 corresponds to the first opening. The second opening 2611 is opened by driving the relative movement of the two frame members 201 through the fifth drive component, and the second opening 2611 is aligned with the first opening 22 (i.e., with the printing platform 3 covering the first opening 22) by driving the relative movement of the two frame members 201 through the fifth drive component. The printed piece falls from the second opening 2611 into the first frame member. The second opening 2611 is closed by driving the relative movement of the two frame members 201 through the fifth drive component, and the printed piece is surrounded between the first frame member and the second frame member (i.e., within the carrier member 200), so that the printed piece rotates with the carrier member. It should be noted that the drive component that drives the relative movement of the two frame members 201 to adjust the opening and closing of the second opening 2611 and the drive component that drives the rotation and / or movement of the two frame members 201 to align the second opening 2611 with the first opening 22 can be the same drive component or different drive components.

[0207] In some embodiments, the carrier 200 includes a first frame member having a second opening 2611 and a second frame member surrounding the second opening 2611. The two frame members 201 (the first frame member and the second frame member) are configured to adjust the opening and closing of the second opening 2611 by rotating relative to each other about the rotation center line of the carrier 200. The second opening 2611 is correspondingly provided with the first opening 22.

[0208] In some embodiments, the two frame members 201 (the first frame member and the second frame member) are configured to rotate relative to each other about the rotation center line of the carrier member 200 via the fourth drive assembly 5 to adjust the opening and closing of the second opening 2611. In some embodiments, the two frame members 201 (the first frame member and the second frame member) are configured to rotate about the rotation center line of the carrier member 200 via the fourth drive assembly 5 so that the second opening 2611 corresponds to the first opening 22.

[0209] In some embodiments, the second opening 2611 is opened by driving the two frame members 201 to rotate relative to each other around the rotation center line of the carrier 200 by the fourth driving component 5, and the second opening 2211 is aligned with the first opening 22 by driving the two frame members 201 to rotate around the rotation center line of the carrier 200 by the fourth driving component 5.

[0210] In this embodiment, two fourth drive components 5 are provided. The first frame component and the second frame component are each provided with a second transmission connector 202. The first frame component is connected to one of the fourth drive components 5 via the second transmission connector 202, and the second frame component is connected to the other fourth drive component 5 via the second transmission connector 202, allowing the two frame components 201 to rotate synchronously or relative to each other. The fourth drive components 5 drive the two frame components 201 to rotate relative to each other around the rotation center line of the support component 200, causing the second opening 2611 to open (the second opening 2611 opens when the two frame components 201 rotate relative to each other to the state shown in Figure 21). The fourth drive components 5 also drive the two frame components 201 to rotate synchronously around the rotation center line of the support component 200, causing the second opening 2611 to correspond to the first opening 22 (i.e., to the printing platform 3 covering the first opening 22). The printed part falls from the second opening 2611 into the first frame component, and is then driven by the fourth drive components... The second opening 2611 is closed when the two frame members 201 rotate relative to each other around the rotation center line of the carrier member 200 (when the two frame members 201 rotate relative to each other to the state shown in Figure 20, the second opening 2611 is closed). The printed part is surrounded between the first frame member and the second frame member (i.e., the carrier member 200). The carrier member 200 is rotated around the rotation center line of the carrier member 200 by the fourth drive assembly 5 (i.e., the two frame members 201 are synchronously rotated around the rotation center line of the carrier member 200 by the fourth drive assembly 5) to achieve the rotation of the printed part. It should be noted that the drive assembly that adjusts the opening and closing of the second opening 2611 by rotating the two frame members 201 relative to each other around the rotation center line of the carrier member 200 and the drive assembly that drives the two frame members 201 synchronously around the rotation center line of the carrier member 200 to make the second opening 2611 and the first opening 22 rotate synchronously can be the same drive assembly or different drive assemblies. It should also be noted that there are two ways to make the two frame components 201 rotate relative to each other: one is that one frame component 201 remains stationary while the other frame component 201 rotates, and the other is that the two frame components 201 rotate simultaneously in opposite directions or rotate asynchronously.

[0211] In this embodiment, as shown in FIG19, both frame members 201 are semi-cylindrical tubes. The two frame members 201 are nested inside and outside and can rotate around the rotation center line of the support member 200 respectively. In one embodiment, the rotation center line of the support member 200 is the axis of the semi-cylindrical tube. In some embodiments, only one frame member 201 may have an opening, while the other frame member 201 may be configured as a cover plate structure. By rotating or moving the two frame members 201 relative to each other, the cover plate frame member 201 may approach or move away from the opening of the other frame member 201. When the cover plate frame member 201 approaches and covers the opening of the other frame member 201, the second opening 2611 of the support member closes; when the cover plate frame member 201 moves away from the opening of the other frame member 201, the second opening 2611 of the support member opens.

[0212] Referring again to Figure 21, in this embodiment, the fourth drive assembly 5 includes a first motor 53 and a first transmission structure. The first transmission structure includes a first drive wheel 54, a first driven wheel 55, and a first belt 56. The first motor 53 is mounted on the post-processing body 21, and the first drive wheel 54 is mounted on the output shaft of the first motor 53. The first driven wheel 55 is connected to the frame component 201 via a first transmission connector 51. The first belt 56 connects the first drive wheel 54 and the first driven wheel 55.

[0213] In the above structure, the first motor 53 drives the frame components to rotate via the first driving wheel 54, the first driven wheel 55, and the first belt 56. By making the two frame components 201 rotate synchronously, the carrier component 200 can be controlled to rotate around the rotation center line, allowing the carrier component 200 to rotate during post-processing such as cleaning, so as to perform efficient and comprehensive post-processing of the printed parts. By making the two frame components 201 rotate relative to each other, the opening and closing, the degree of opening, and the opening position of the second opening 2611 can be controlled, so that the second opening 2611 opens towards the first opening 22 on the post-processing body 21 during the material scraping process, and closes during post-processing such as cleaning, to prevent the printed parts from being thrown out.

[0214] In other embodiments, the opening and closing of the second opening 2611 can also be controlled by manually rotating the two frame components 201.

[0215] In some embodiments, without the driving force of any driving component, the two frame members 201 are in a state where the second opening 2611 is open and corresponds to the first opening 22, or the two frame members 201 change from other states by rotating or rotating relative to each other around the rotation center line of the support member 200 to the state where the second opening 2611 is open and corresponds to the first opening 22. In this state, the two frame members 201 are in a stable, stationary state without the driving force of any driving component. In this embodiment, the two frame members 201 change from other states by rotating or rotating relative to each other around the rotation center line of the support member 200 due to gravity to the state where the second opening 2611 is open and corresponds to the first opening 22.

[0216] The support assembly 20 is disposed in the processing chamber 211 and is correspondingly arranged to the first opening 22. In this embodiment, when the support assembly 20 is in a stable and stationary state without the driving force of any driving assembly, the second opening 2611 is open and corresponds to the first opening 22 (the second opening 2611 faces the first opening 22). Of course, the support assembly 20 can also be in a stable and stationary state under the driving force of the driving assembly, with the second opening 2611 open and corresponding to the first opening 22 (the second opening 2611 faces the first opening 22).

[0217] In some embodiments, the processing chamber 211 has a third opening in the insertion direction of the carrier assembly 20, and the post-processing body 21 is provided with an opening and closing door 16 that covers the third opening. In this embodiment, the insertion direction of the carrier assembly 20 is the front-rear direction of the post-processing module, and the third opening is located on the front wall of the processing chamber 211.

[0218] In some embodiments, to facilitate the pushing and pulling of the support assembly 20, the mounting bracket 204 is provided with a push-pull handle 243; after the support assembly 20 is installed in the processing chamber 211, the push-pull handle 243 is located on the side of the mounting bracket 204 near the opening and closing door 16 of the processing chamber 211. After the printed parts are processed, the operator can open the opening and closing door 16 and then pull the push-pull handle 243 to remove the support assembly 20 from the processing chamber 211. It should be noted that the push-pull handle 243 can also be provided on the support member 200.

[0219] When the second opening 2611 is in the 180° open state (i.e., the state shown in Figure 22), the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 203 are parallel to the insertion direction. At this time, the carrier assembly 20 can be installed or removed. When the second opening 2611 is in the closed state or other open angles, the carrier assembly 20 can only rotate around its rotation center line, which makes the installation of the carrier assembly 20 more accurate and the operation more efficient. In addition, when the second opening 2611 is in the 180° open state, the two nested frame members 201 are fully fitted, and the overall height of the carrier assembly 20 is at its minimum, which makes it easier to install or remove the carrier 200 from the post-processing unit 21.

[0220] 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.

[0221] In this embodiment, the air supply module 28 can serve as both part of the cleaning mechanism and part of the drying mechanism, thus providing both air spraying and drying functions. During the cleaning process, the heater 283 is turned off, and the airflow control element 282 introduces room temperature airflow into the air supply channel 281. This allows the cleaning material inside the material holding part 213 to be sprayed onto the printed part of the carrier component by the airflow. In some embodiments, the heater can also be activated during this process. After the cleaning process is completed, the heater 283 is activated, and airflow is again introduced into the air supply channel 281 through the airflow control element 282. The airflow is heated by the heater 8 as it passes through the heater. Under the combined action of heating and airflow, the surface of the printed part is dried, thereby improving the drying effect.

[0222] A second vent 152 is formed between the air supply channel 281 and the processing chamber 211. Air heated by the heater 283 is sent into the processing chamber 211 through the second vent 152 to dry the printed parts with hot air. It should be noted that the second vent 152 and the first vent can be the same vent or different vents, and the number can be one, two or more. In the embodiment shown in Figure 18, the second vent 152 and the first vent are the same vent, and both are air inlets 142 opened at the bottom of the recessed area 143.

[0223] In some embodiments, the heater 283 may not be installed on the air supply channel 281, and the air supply module 28 may be used to supply air to the processing chamber 211 for drying; two sets of air supply modules 28 may also be installed, one for cleaning and one for drying; in addition, the drying component may be other heating methods such as direct electric heating or infrared heating, instead of warm air heating through the air supply module 28.

[0224] In some embodiments, the airflow control element 282 can be a blower, and the heater 283 can be a PTC (Positive Temperature Coefficient) heater. After the air is heated by the airflow control element 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.

[0225] 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.

[0226] Optionally, the post-processing module 2 further includes a post-curing component for performing 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 capable of generating ultraviolet wavelengths of 365nm, 385nm, and 405nm. During the post-curing process, the cleaning frame 26 can also be rotated to ensure the effectiveness and sufficiency of the post-curing. In some embodiments, the curing component includes a curing lamp disposed on the side wall of the processing chamber 211 for photocuring the printed parts.

[0227] 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.

[0228] 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, allowing air and exhaust gas inside the post-processing unit 21 to be discharged to the outside. Simultaneously, the exhaust assembly 212 also balances the gas pressure within the post-processing unit 21. It should be noted that the baffle also prevents the cleaning material from being carried out during gas discharge; the cleaning material is blocked by the baffle and flows back into the processing chamber.

[0229] Referring to Figures 27 and 29, in some embodiments, the post-processing module further includes an external storage tank 10 disposed on the post-processing body 21. The external storage tank 10 is detachably connected to the post-processing body 21 and communicates with the processing chamber 211 through a feeding channel 62. The external storage tank 10 is provided with a flow channel control module 101, which includes a feeding control module for controlling the external storage tank 10 to feed cleaning materials into the processing chamber 211. The external storage tank 10 communicates with the processing chamber 211 through a recovery channel 7, and the flow channel control module 101 further includes a recovery control module for controlling the external storage tank 10 to return cleaning materials to the processing chamber 211. The feeding channel 62 and the recovery channel 7 are either integrally disposed or separately disposed. The external storage tank 10 includes a cleaning agent tank for holding cleaning materials and a recovery tank 108. The feeding control module includes a feeding pump 63 disposed on the flow channel between the cleaning agent tank and the treatment chamber 211 and a flow control component for controlling the flow channel's opening and closing. The recovery control module includes a return pump disposed on the flow channel between the recovery tank 108 and the treatment chamber 211 and a flow control component for controlling the flow channel's opening and closing. The feeding pump 63 and the return pump are either integrated or separate. One or more cleaning agent tanks are provided. When multiple cleaning agent tanks are provided, the feeding pump 63 is disposed on the flow channel between each cleaning agent tank and the treatment chamber 211, and a flow control component is provided on the flow channel between each cleaning agent tank and the treatment chamber 211.

[0230] Referring to Figures 27 and 29, in some embodiments, the external storage tank 10 of the post-processing module includes a base 102, a housing 103 disposed on the base 102, and a cover 104 covering the housing 103. The flow channel control module 101 is disposed on the base 102, that is, both the feeding control module and the recycling control module are disposed on the base 102. The housing 103 contains a cleaning agent tank and a recycling tank 108. The overall structure is simple and compact, occupies little space, and only a small amount of cleaning fluid is needed to complete the cleaning of the printed parts, which saves cleaning fluid. The overall cleaning time is fast and the cleaning efficiency is high.

[0231] The feeding control module also includes a cleaning agent inlet, a post-processing unit interface 1019, a feeding pump inlet pipe 10110, and a feeding pump outlet pipe 10111. The base 102 is equipped with an external storage tank cleaning agent inlet connected to the cleaning agent tank. The cleaning agent inlet is connected to the external storage tank cleaning agent inlet. The post-processing unit interface 1019 is connected to the feeding channel 62. The inlet of the feeding pump 63 is connected to the cleaning agent inlet via the feeding pump inlet pipe 10110, and the outlet of the feeding pump 63 is connected via the feeding pump outlet pipe 10111. A flow control device is provided between the cleaning agent inlet interface 1019 and the feed pump inlet pipe 10110 to control the on / off connection between the cleaning agent inlet interface 1019 and the feed pump outlet pipe 10111. A flow control device is also provided between the post-processing unit interface 1019 and the feed pump outlet pipe 10111 to control the on / off connection between the post-processing unit interface 1019 and the feed pump outlet pipe 10111. The recovery control module also includes a recovery liquid outlet interface 1018, a recovery liquid inlet interface, a return pump inlet pipe, and a return material... The pump outlet pipe and the base 102 are equipped with an external storage tank recovery liquid outlet interface 1022 that communicates with the recovery tank 108. The recovery liquid outlet interface 1018 is connected to the external storage tank recovery liquid outlet interface 1022. The recovery liquid inlet interface is connected to the recovery channel 7. The inlet of the return pump is connected to the recovery liquid inlet interface through the return pump inlet pipe. The outlet of the return pump is connected to the recovery liquid outlet interface 1018 through the return pump outlet pipe. A control device is provided between the recovery liquid inlet interface and the return pump inlet pipe for controlling the connection between the recovery liquid inlet interface and the return pump inlet pipe. A flow control device for controlling the flow between the recovery liquid outlet 1018 and the return pump outlet pipe is provided; wherein, when the feeding channel 62 and the recovery channel 7 are integrated, the post-processing body interface 1019 and the recovery liquid inlet interface are integrated; when the feeding pump 63 and the return pump are integrated, the feeding pump inlet pipe 10110 and the return pump inlet pipe are integrated, and the feeding pump outlet pipe 10111 and the return pump outlet pipe are integrated. In this embodiment, the feeding control module and the recycling control module can exist independently of each other, or they can share common parts. That is, the feeding channel 62 and the recycling channel 7 are integrated, the post-processing body interface 1019 and the recycling liquid inflow interface are integrated; the feeding pump 63 and the return pump are integrated, the feeding pump inflow pipe 10110 and the return pump inflow pipe are integrated, and the feeding pump outflow pipe 10111 and the return pump outflow pipe are integrated.

[0232] Referring to Figures 26 and 28, in one embodiment, the flow channel control module 101 includes a first flow control component 1011, a second flow control component 1012, a third flow control component 1013, a fourth flow control component 1014, a fifth flow control component 1015, a first cleaning agent inlet 1016, a second cleaning agent inlet 1017, a recovered liquid outlet 1018, a post-processing unit interface 1019, a feed pump inlet pipe 10110, a feed pump outlet pipe 10111, and a feed pump 6. 3. The external storage tank 10 is provided with a first external storage tank cleaning agent inlet 1021, an external storage tank recovery liquid outlet 1022, and a second external storage tank cleaning agent inlet 1023. That is, there are two cleaning agent inlet ports, namely the first cleaning agent inlet port 1016 and the second cleaning agent inlet port 1017, and there are two external storage tank cleaning agent inlet ports, namely the first external storage tank cleaning agent inlet port 1021 and the second external storage tank cleaning agent inlet port 1023. The first cleaning agent inlet 1016 is connected to the first external storage tank cleaning agent inlet 1021; the second cleaning agent inlet 1017 is connected to the second external storage tank cleaning agent inlet 1023; the recovered liquid outlet 1018 is connected to the external storage tank recovered liquid outlet 1022; the post-processing body interface 1019 is connected to the feeding channel 62; the inlet of the feeding pump 63 is connected to the first cleaning agent inlet 1016, the second cleaning agent inlet 1017, and the post-processing body interface 1019 via the feeding pump inlet pipe 10110; and the outlet of the feeding pump 63 is connected to the recovered liquid outlet 1018 and the post-processing body interface 1019 via the feeding pump outlet pipe 10111. A first liquid flow control component 1011 is located between the first cleaning agent inlet 1016 and the feeding pump inlet pipe 10110 to control the flow between the first cleaning agent inlet 1016 and the feeding pump inlet pipe. The second flow control element 1012 is located between the second cleaning agent inlet 1017 and the feed pump inlet pipe 10110 to control the on / off connection between the second cleaning agent inlet 1017 and the feed pump inlet pipe 10110. The third flow control element 1013 is located between the post-treatment machine interface 1019 and the feed pump inlet pipe 10110 to control the on / off connection between the post-treatment machine interface 1019 and the feed pump inlet pipe 10110. The fourth liquid flow control component 1014 is located between the post-processing machine body interface 1019 and the feed pump outlet pipe 10111 to control the on / off connection between the post-processing machine body interface 1019 and the feed pump outlet pipe 10111. The fifth liquid flow control component 1015 is located between the recovery liquid outlet interface 1018 and the feed pump outlet pipe 10111 to control the on / off connection between the recovery liquid outlet interface 1018 and the feed pump outlet pipe 10111.The external storage tank 10 includes a first cleaning agent tank 106 for holding a first cleaning agent, a second cleaning agent tank 107 for holding a second cleaning agent, and a recovery tank 108. When the first cleaning agent needs to be injected into the treatment chamber 211, the first flow control element 1011 and the fourth flow control element 1014 are opened, and the second flow control element 1012, the third flow control element 1013, and the fifth flow control element 1015 are closed. The first cleaning agent in the external storage tank 10 is then transported to the treatment chamber 211 by the feed pump 63. When the second cleaning agent needs to be injected into the treatment chamber 211, the second flow control element 1012 and the fourth flow control element 1014 are opened, and the first flow control element 1011, the third flow control element 1013, and the fifth flow control element 1015 are closed. The second cleaning agent in the external storage tank 10 is then transported to the treatment chamber 211 by the feed pump 63. When the cleaning agent in the treatment chamber 211 is used up, and the waste liquid needs to be transported to the recovery tank 108 of the external storage tank 10, the third liquid flow control component 1013 and the fifth liquid flow control component 1015 will open, and the first liquid flow control component 1011, the second liquid flow control component 1012, and the fourth liquid flow control component 1014 will close. The feed pump 63 will then transport the waste liquid from the treatment chamber 211 to the recovery tank 108 of the external storage tank 10. The flow channel control module 101 controls the flow of cleaning agent in and out of the external storage tank 10 and the waste cleaning agent from the post-treatment module, enabling automatic injection of cleaning agent and automatic cleaning functions in the post-treatment module. Simultaneously, the first or second cleaning agent flowing out of the external storage tank 10 flows to the treatment chamber 211 through only one feed channel 62, and the used cleaning agent in the treatment chamber 211 also flows out to the recovery tank 108 of the external storage tank 10 through the feed channel 62. The overall structure is simple.

[0233] In this embodiment, a material supply channel connector 109 is also provided on the base 102. The material supply channel connector 109 is connected to the post-processing machine interface 1019. When the external storage box 10 and the post-processing module are installed, it is only necessary to connect the material supply channel connector 109 to the spraying channel 145 through the material supply channel 62.

[0234] In this embodiment, the first cleaning agent and the second cleaning agent include, but are not limited to, ethanol, isopropanol, water, etc.

[0235] In this embodiment, the first flow control component 1011, the second flow control component 1012, the third flow control component 1013, the fourth flow control component 1014, and the fifth flow control component 1015 can be solenoid valves or manual valves, etc.

[0236] Referring to Figures 30 to 32, in some embodiments, the post-processing module further includes a discharge port 144, a spray channel 145, a spray pump 146, and a spraying element 9 for applying cleaning material to the surface of the printed parts, all disposed on the post-processing body 21. The discharge port 144 is connected to the feeding channel 62 and the inlet of the spray pump 146 via the spray channel 145, and the outlet of the spray pump 146 is connected to the spraying element 9. When the post-processing body 21 starts the cleaning process, the third liquid flow control element 1013 and the fourth liquid flow control element 1014 are both closed. At this time, the cleaning agent in the processing chamber 211 is drawn out from the discharge port 144 by the action of the spray pump 146 and sprayed out from the spraying element 9, forming an internal circulation of the cleaning agent, continuously circulating and spraying the cleaning agent to clean the printed parts. After cleaning is completed, the third liquid flow control component 1013 and the fifth liquid flow control component 1015 will be opened, and the first liquid flow control component 1011, the second liquid flow control component 1012 and the fourth liquid flow control component 1014 will be closed. The waste liquid in the treatment chamber 211 will be sucked out through the discharge port 144 and transported to the recycling bucket 108 of the external storage tank 10 by the action of the feed pump 63.

[0237] Referring to Figures 27 and 29, in some embodiments, the first external storage tank cleaning agent inlet 1021, the external storage tank recovery liquid outlet 1022, and the second external storage tank cleaning agent inlet 1023 are all disposed on the base 102. The base 102 is detachably connected to the housing 103, and a guide assembly structure is provided between the base 102 and the housing 103. This guide assembly structure can be a cooperating guide groove and guide block, a cooperating guide platform and guide block, or other structures that facilitate assembly between the base 102 and the housing 103. The housing 103 contains a cleaning agent tank and a recovery tank 108. In this embodiment, the feeding assembly is installed on the post-processing module, the feeding channel 62 is connected to the spraying channel 145, the housing 103 and the flow channel control module 101 are installed on the base 102, and the first cleaning agent inlet 1016, the second cleaning agent inlet, the recovered liquid outlet 1018 and the post-processing machine interface 1019 are respectively connected to the corresponding interfaces on the housing, so that the first cleaning agent inlet 1016 is connected to the first external storage tank cleaning agent inlet 1021, the second cleaning agent inlet 1017 is connected to the second external storage tank cleaning agent inlet 1023, the recovered liquid outlet 1018 is connected to the external storage tank recovered liquid outlet 1022, and the post-processing machine interface 1019 is connected to the feeding channel 62. Installation and disassembly are convenient, saving time and effort.

[0238] Referring to FIG28, in some embodiments, the post-processing module further includes a display screen 105 disposed on the external storage tank 10. The operating conditions can be monitored through the display screen 105. The display screen 105 is disposed on the base 102, but is not limited thereto, and can also be disposed at other locations on the external storage tank 10.

[0239] Referring to Figure 33, a control method for a specific embodiment of the post-processing module cleaning process flow channel provided in this application is described. This control method is based on the above-described post-processing module. The control method includes:

[0240] S11. Prepare for cleaning by injecting either the first or second cleaning agent into the treatment chamber 211.

[0241] When the first cleaning agent needs to be injected into the treatment chamber 211, the first liquid flow control device 1011 and the fourth liquid flow control device 1014 are opened, and the second liquid flow control device 1012, the third liquid flow control device 1013 and the fifth liquid flow control device 1015 are closed. The feed pump 63 is started to transport the first cleaning agent in the external storage tank 10 to the treatment chamber 211.

[0242] When it is necessary to inject the second cleaning agent into the treatment chamber 211, the second liquid flow control device 1012 and the fourth liquid flow control device 1014 are opened, and the first liquid flow control device 1011, the third liquid flow control device 1013 and the fifth liquid flow control device 1015 are closed. The feed pump 63 is started to transport the second cleaning agent in the external storage tank 10 to the treatment chamber 211.

[0243] S12, start cleaning, the third liquid flow control component 1013 and the fourth liquid flow control component 1014 are closed, the feed pump 63 is turned off, the spray pump 146 is started to draw out the cleaning agent from the discharge port 144 from the treatment chamber 211 and spray it out from the spray component 9 to form a cycle.

[0244] S13. Cleaning is completed. The third liquid flow control component 1013 and the fifth liquid flow control component 1015 are opened, and the first liquid flow control component 1011, the second liquid flow control component 1012 and the fourth liquid flow control component 1014 are closed. The spray pump 146 is turned off, and the feed pump 63 is started to draw out the waste liquid in the treatment chamber 211 through the discharge port 144 and transport it to the recycling bucket 108 of the external storage tank 10.

[0245] The post-processing module's cleaning process flow control method, employing five flow control components and a feed pump 63, enables the control of two cleaning agents and waste liquids between the external storage tank 10 and the post-processing unit 21 via a single feed channel 62. No manual control of the cleaning agent injection volume is required; the flow control components and feed pump 63 control the cleaning agent's inflow. The post-processing unit 21's automatic cleaning and drying functions complete the cleaning and drying of the printed parts. The entire process conserves cleaning agent and boasts high cleaning efficiency.

[0246] This embodiment provides a material feeding control method, which is another specific embodiment of the control method for the cleaning process flow channel of the post-processing module provided in this application. This control method is based on the above-described post-processing module. The control method includes:

[0247] S21. Prepare for cleaning. Open the first liquid flow control unit 1011 and the fourth liquid flow control unit 1014, and close the third liquid flow control unit 1013 and the fifth liquid flow control unit 1015. Start the feed pump 63 to deliver the first cleaning agent in the external storage tank 10 to the treatment chamber 211.

[0248] S22. Start cleaning. The third liquid flow control unit 1013 and the fourth liquid flow control unit 1014 are closed. The feed pump 63 is turned off. The spray pump 146 is started to draw out the cleaning agent from the treatment chamber 211 from the discharge port 144 and spray it out from the spray unit 9 to form a cycle.

[0249] S23. Cleaning is completed. The third liquid flow control component 1013 and the fifth liquid flow control component 1015 are opened, the first liquid flow control component 1011 and the fourth liquid flow control component 1014 are closed, the spray pump 146 is turned off, and the feed pump 63 is started to suck out the waste liquid in the treatment chamber 211 through the discharge port 144 and transport it to the recycling bucket 108 of the external storage tank 10.

[0250] If there is only one cleaning agent container, or if there are multiple cleaning agent containers but only one type of cleaning agent is stored, the selection step of the first method is not required. It achieves the same effect as the first method described above, and will not be elaborated further here.

[0251] In some embodiments, the post-processing module further includes a controller electrically connected to an electrical component in the post-processing module, the electrical component including at least one of the following: a motor, a solenoid valve, a blower, a fan, a heater, a lamp, etc.

[0252] In summary, the post-processing module provided in this embodiment includes at least one of the following integrated on the post-processing body 21: a scraping mechanism, a bearing component, a cleaning component, a feeding component 6, a drying component, and a curing component. It can achieve one or more functions of automatic scraping, 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, overcoming the shortcomings of many products on the market, 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.

[0253] A second aspect of this application 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 shape printing material into a printed part; the transport mechanism 2a is used to transport the printed part to the post-processing module 2.

[0254] 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.

[0255] In some embodiments, the printing module 1 includes a printer body and a printing platform 3 disposed on the printer body. A transmission mechanism 2a is connected between the printer body and the post-processing module and is used to transfer the printing platform between the printer body and the post-processing module.

[0256] In some embodiments, the printing module 1 further includes a printing platform 3, a material box, and a photomechanical unit. The material box is used to hold printing materials, and the photomechanical unit is used to form the printing materials into printed parts on the printing platform 3.

[0257] 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. The material box and optical engine can adopt the structures found in related technologies, and the optical engine can also be selected according to the type of 3D printed part, with corresponding specifications and models. The specific working principle of the optical engine will not be elaborated in this embodiment.

[0258] The control module is signal-connected to the printing module 1, post-processing module 2, and transmission mechanism 2a. The control module is also signal-connected to the drive components, pumps, valves, heaters, sensors, etc., of the printing module 1, post-processing module 2, and transmission mechanism 2a to achieve automatic printing, automatic transfer of printed parts, and automatic post-processing, realizing full automation of printer post-processing. It should be noted that the control module can also be independently located in the printing module 1, post-processing module 2, and transmission mechanism 2a, and signal-connected to their respective control components for independent control. Simultaneously, the control module is signal-connected to the flow control components in the flow channel control module, and the feed pump and spray pump of the feeding assembly.

[0259] A third aspect of this application 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 parts; the transfer mechanism 2a is used to transport the printed parts from the printing module 1 to the post-processing module 2.

[0260] 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.

[0261] 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.

[0262] 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.

[0263] A fourth aspect of this application also relates to a control method based on the above-described 3D printing system. This control method includes:

[0264] S31. Printing: shaping printing material into a printed part.

[0265] 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.

[0266] 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.

[0267] S32, Transfer: Transport the printing platform 3 and the printed parts to the post-processing unit.

[0268] After the printing module finishes printing, the control module controls the transport mechanism to convey the printing platform 3 to the post-processing unit via the transport mechanism 2a, and seals the printing platform 3 over the first opening 22, thus closing the processing chamber 211. The control module then controls the transport mechanism to move the printing platform horizontally to the post-processing unit, above the first opening 22, and then controls the transport mechanism to move the printing platform up and down to seal the printing platform over the first opening 22.

[0269] S33. Post-processing: Perform post-processing procedures on the printed parts.

[0270] The post-processing steps include scraping, cleaning, drying, and post-curing. Specifically:

[0271] 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.

[0272] 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.

[0273] 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 control module simultaneously controls the cleaning frame 26 to rotate, and the cleaning frame 26 drives the printed parts to rotate. The heated gas flows into the processing chamber 211 to achieve rapid drying of the printed parts.

[0274] 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, and the control module simultaneously controls the rotation of the cleaning frame 26. The cleaning frame 26 drives the printed parts to rotate, thereby achieving post-curing of the printed parts.

[0275] 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.

[0276] The working process of a specific embodiment of the 3D printing system provided in this application is as follows:

[0277] After 3D printing is complete, the printed part is attached to the printing platform. The transfer mechanism moves the printing platform to the first opening of the post-processing unit. Specifically, the transfer mechanism drives the printing platform to move horizontally, moving it from the 3D printer to the post-processing unit, usually above the first opening, typically limited by a limit switch or mechanical limit structure. The transfer mechanism then drives the printing platform downward, sealing the first opening, usually at the position defined by a limit switch or mechanical limit structure. At this point, the circumferential surface of the printing platform and the inner wall of the first opening are sealed together, ensuring that no cleaning material overflows from the first opening during subsequent cleaning and drying processes. Simultaneously, the working end of the scraper is tightly fitted to the forming surface of the printing platform (i.e., the side carrying the printed part) under the reverse force of the tensioning component.

[0278] Before the scraping mechanism scrapes the material, the control module controls the fourth drive assembly 5 to drive the two frame components to rotate relative to each other, opening the second opening of the carrier and aligning it with the first opening. Then, the control module controls the third drive assembly to move the scraper left and right along the printing platform to scrape off the printed material. The fallen material falls into the carrier through the second opening. Alternatively, if the second opening of the carrier is already in the state shown in Figure 7 before the scraping mechanism scrapes the material, the relative rotation of the two frame components can be avoided, and the scraper can be directly controlled to scrape the material. It should be noted that the size of the second opening can be controlled by the relative rotation of the two frame components to fit the size of the printed material, facilitating the slow and steady fall of the printed material into the carrier.

[0279] Next, the control module controls the fourth drive assembly 5 to drive the two frame components to rotate relative to each other, thereby closing the second opening of the carrier (as shown in Figure 20). Then, the control module controls the fourth drive assembly 5 to drive the two frame components to rotate synchronously. At the same time, the control module controls the second control valve and the feed pump on the feed channel to open, and feeds the cleaning material into the processing chamber through the feed channel and the feed pump. The cleaning material falls into the material holding part at the bottom of the processing chamber under the action of gravity. After the feed channel supplies the processing chamber 211 with a preset amount of cleaning material, the control module controls the second control valve and the feed pump on the feed channel to close, and then controls the first control valve and the airflow control device (e.g., a blower) on the air supply channel to open. Gas is sprayed into the processing chamber from the air inlet through the airflow control device and the air supply channel. The impact force of the gas is used to spray the cleaning material in the chamber onto the surface of the printed part. After cleaning is completed, the control module controls the first control valve and the airflow control device on the air supply channel to close, and then controls the third control valve on the recovery channel to open. The cleaning material at the bottom of the processing chamber flows back to the internal storage tank through the recovery channel.

[0280] After cleaning, the control module controls the first control valve, airflow control component, and heater on the air supply channel to open. The airflow control component sends air to the heater for heating. Hot air is sprayed from the air inlet into the processing chamber and dries the clean printouts. At this time, the carrier will continue to rotate to make the printouts dry more thoroughly.

[0281] During the cleaning and drying process of the printed parts, the ventilation channel at the top of the post-processor ensures the intake and exhaust of air in the processing chamber.

[0282] After drying is complete, the control module controls the fourth drive component 5 to drive the two frame components to rotate relative to each other, so that the second opening of the carrier component opens 180°. Then, the opening and closing door is opened, and the mounting bracket along with the carrier component on it is taken out. At the same time, the transmission mechanism puts the printing platform back on the printer, waiting for the next printing operation.

[0283] The 3D printing system provided in this application achieves fully automated printing and post-processing operations, eliminating the need for users to handle the printed parts with photocurable resin, thus making the photocurable 3D printing process more efficient and convenient. Furthermore, the 3D printing system possesses at least all the technical effects of the aforementioned 3D printing post-processing module, which will not be elaborated upon here.

[0284] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the scope of protection of this application. 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 this application should be included within the scope of protection of the claims of this application.

Claims

1. A 3D printing system, comprising: 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) together with the printed parts thereon 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 in 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 or 4, 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 5, 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 any one of claims 5 to 7, 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 any one of claims 1 to 9, 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 any one of claims 2 to 10, 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 or 11, 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) communicating with 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, 12 or 13, 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, 12, 13, or 14, 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 disposed on the inner wall of the post-processing unit (21) and is used to irradiate the printed part in the processing chamber (211).

16. The 3D printing system according to any one of claims 1 to 15, characterized in that, Also includes: 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, used in the 3D printing system according to any one of claims 1-16, the 3D printer comprising: 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. The 3D printer according to claim 17, wherein, The printing module (1) 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 for use in the 3D printing system according to any one of claims 1-16, the post-processing apparatus comprising: 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) 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 based on a 3D printing system as described in 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 material.

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 performed 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.

25. A 3D printing post-processing apparatus, comprising a post-processing body (21), a processing chamber (211) and a scraper mechanism disposed in the post-processing body (21), wherein: The processing chamber (211) has a first opening (22); The scraper mechanism is used to separate the printed part on the printing platform (3) from the printing platform (3) and allow it to enter the processing chamber (211) through the first opening (22).

26. The 3D printing post-processing apparatus according to claim 25 further includes a carrier component (20) disposed in the processing chamber (211) for carrying the printed part and a cleaning component disposed in the post-processing body (21) for applying cleaning material to the surface of the printed part, wherein the cleaning component is disposed corresponding to the carrier component (20).

27. The 3D printing post-processing apparatus according to claim 26, characterized in that, The cleaning assembly includes a spraying assembly for spraying cleaning material onto the surface of the printed part; and / or, the cleaning assembly includes a receiving part for holding the cleaning material.

28. The 3D printing post-processing apparatus according to claim 27, characterized in that, The cleaning assembly includes the spraying assembly and the material holding section; The spraying assembly includes a spraying element (9) disposed in the material holding part and facing the bearing assembly (20) and an air supply module (28) communicating with the spraying element (9). The air supply module (28) includes an air supply channel (281) and an airflow control element (282). The air supply channel (281) communicates the processing chamber (211) with the outside of the post-processing device. The airflow control element (282) is disposed in the air supply channel (281). Alternatively, the spraying assembly includes a spraying element (9) disposed in the material holding section and facing the bearing assembly (20). The spraying element (9) is connected to the spraying source, and the spraying source pressurizes the cleaning material to the spraying element (9) through a spraying pump (146). The spraying source includes the material holding section, which is provided with a discharge port (144). The discharge port (144) is connected to the spraying element (9) through a spraying channel (145). A spraying circuit is formed between the material holding section, the discharge port (144), and the spraying element (9). The spraying pump (146) is disposed in the spraying channel (145).

29. The 3D printing post-processing apparatus according to claim 28, characterized in that, The bottom of the processing chamber (211) forms a first material holding area, and the material holding part includes the first material holding area, which is provided with the spraying element (9).

30. The 3D printing post-processing apparatus according to claim 29, characterized in that, The first material holding area is a recessed area (143) formed by the outward indentation of the bottom surface of the processing chamber (211).

31. The 3D printing post-processing apparatus according to any one of claims 28 to 30, characterized in that, It also includes a feeding assembly (6) disposed in the post-processing body (21) for feeding cleaning materials into the processing chamber (211), the feeding assembly (6) being disposed corresponding to the cleaning assembly.

32. The 3D printing post-processing apparatus according to claim 31, characterized in that, The feeding assembly (6) includes a feeding channel (62), which connects the processing chamber (211) and the feeding source. The connection between the feeding channel (62) and the processing chamber (211) is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning materials to the processing chamber (211) through a feeding pump (63).

33. The 3D printing post-processing apparatus according to claim 32, characterized in that, The material supply source includes an internal storage tank (61) and / or an external storage tank (10), and the external storage tank (10) is detachably connected to the 3D printing post-processing device.

34. The 3D printing post-processing apparatus according to claim 32 or 33 further includes a recovery component disposed in the post-processing body (21) for recovering the cleaning material in the processing chamber (211), the recovery component including a recovery port (141) corresponding to the material holding part.

35. The 3D printing post-processing apparatus according to claim 34, characterized in that, The recycling assembly also includes a recycling channel (7) connected to the recycling port (141), the recycling channel (7) connecting the material supply source and the material holding part.

36. The 3D printing post-processing apparatus according to any one of claims 26 to 35, characterized in that, The carrier assembly (20) includes a carrier (200) for carrying the printed parts, the carrier (200) being rotatably connected to the post-processing body (21); and / or, the carrier (200) being removably disposed on the post-processing body (21).

37. The 3D printing post-processing apparatus according to any one of claims 26 to 35, characterized in that, The carrier component (20) includes a carrier component (200) for carrying the printed parts. The carrier component (20) is detachably disposed on the post-processing body (21). The post-processing body (21) is provided with a fourth drive component (5). When the carrier component (20) is placed in the working position of the post-processing body (21), the carrier component (200) is rotatably connected to the post-processing body (21) and is in transmission cooperation with the fourth drive component (5).

38. The 3D printing post-processing apparatus according to claim 37, characterized in that, The fourth drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing body (21), and the bearing assembly (20) includes a second transmission connector (202) disposed on the bearing assembly (200). The first transmission connector (51) is provided with a transmission groove (203), and the second transmission connector (202) is provided with a transmission protrusion (52) that is inserted into the transmission groove (203). Alternatively, the fourth drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing body (21), and the bearing assembly (20) includes a second transmission connector (202) disposed on the bearing assembly (200). The second transmission connector (202) is provided with a transmission groove (203), and the first transmission connector (51) is provided with a transmission protrusion (52) that is inserted into the transmission groove (203).

39. The 3D printing post-processing apparatus according to claim 38, characterized in that, The post-processing unit (21) is provided with a slot that communicates through the transmission groove (203) of the first transmission connector (51); or, the post-processing unit (21) is provided with a plug that is inserted into the transmission groove (203) of the second transmission connector (202).

40. The 3D printing post-processing apparatus according to claim 38, characterized in that, The support assembly (20) includes a mounting frame (204), the support member (200) is rotatably connected to the mounting frame (204) via the second transmission connector (202), and the support assembly (20) is detachably mounted on the post-processing body (21) via the mounting frame (204); or, the support assembly (20) includes a mounting frame (204), the support member (200) is rotatably connected to the mounting frame (204) via the second transmission connector (202), and the mounting frame (204) is provided with the transmission groove (51) of the first transmission connector (51). 203) Insert-fit plug-in, wherein the carrier component (20) is detachably mounted on the post-processing body (21) via the mounting bracket (204); or, the carrier component (20) includes the mounting bracket (204), wherein the carrier member (200) is rotatably connected to the mounting bracket (204) via the second transmission connector (202), wherein the mounting bracket (204) is provided with a slot that communicates through the transmission groove (203) of the second transmission connector (202), and the carrier component (20) is detachably mounted on the post-processing body (21) via the mounting bracket (204).

41. The 3D printing post-processing apparatus according to any one of claims 36 to 40, characterized in that, The carrier (200) is a cylindrical body, or a spherical body, or a clamp, or a bracket, or a tray, or a support platform, or a frame; And / or, the carrier (200) has a hollow structure.

42. The 3D printing post-processing apparatus according to claim 36, characterized in that, The support member (200) includes a first frame member having a second opening (2611) and a second frame member surrounding the second opening (2611). The first frame member and the second frame member are configured to adjust the opening and closing of the second opening (2611) by relative rotation and / or movement of the two. The second opening (2611) is correspondingly provided to the first opening (22).

43. The 3D printing post-processing apparatus according to claim 36, characterized in that, The carrier (200) includes a first frame member having a second opening (2611) and a second frame member surrounding the second opening (2611). The two frame members are configured to adjust the opening and closing of the second opening (2611) by relative rotation and / or movement. The second opening (2611) is correspondingly arranged with the first opening (22). The post-processing body (21) is provided with a second drive assembly for driving the two frame members to adjust the opening and closing of the second opening (2611) by relative rotation and / or movement. Alternatively, the carrier (200) includes a first frame member having a second opening (2611) and a second frame member surrounding the second opening (2611). The two frame members are configured to adjust the opening and closing of the second opening (2611) by relative rotation around the rotation center line of the carrier (200). The second opening (2611) is correspondingly arranged with the first opening (22).

44. The 3D printing post-processing apparatus according to claim 38, characterized in that, The carrier (20) includes a first frame member having a second opening (2611) and a second frame member surrounding the second opening (2611). The two frame members are configured to adjust the opening and closing of the second opening (2611) by rotating relative to each other around the rotation center line of the carrier (200). The second opening (2611) is correspondingly provided with the first opening (22). There are two fourth drive components (5). The first frame member and the second frame member are respectively provided with the second transmission connector (202). The first frame member is driven to one of the fourth drive components (5) through the second transmission connector (202), and the second frame member is driven to the other fourth drive component (5) through the second transmission connector (202).

45. The 3D printing post-processing apparatus according to any one of claims 25 to 44, characterized in that, The processing chamber (211) has a third opening, and the post-processing body (21) is provided with an opening and closing door (16) that covers the third opening.

46. ​​The 3D printing post-processing apparatus according to claim 26, characterized in that, The processing chamber (211) has a third opening in the insertion direction of the bearing assembly (20), and the post-processing body (21) is provided with an opening and closing door (16) that covers the third opening.

47. The 3D printing post-processing apparatus according to any one of claims 25 to 46, characterized in that, The scraping mechanism includes a scraper (24) and a third drive assembly (240), the third drive assembly (240) being used to drive the scraper (24) to move, so as to scrape off the printed parts on the printing platform (3) and allow the printed parts to enter the processing chamber (211).

48. The 3D printing post-processing apparatus according to claim 47, characterized in that, The shovel mechanism further includes a guide assembly, which includes a slide rail (241) disposed on the post-processing body (21) and a slider (242) slidably connected to the slide rail (241), the slider (242) being connected to the shovel blade (24).

49. The 3D printing post-processing apparatus according to claim 47 or 48, characterized in that, The shovel mechanism also includes a tensioning assembly (25) for providing elasticity to keep the shovel (24) in contact with the printing platform (3).

50. The 3D printing post-processing apparatus according to claim 49, characterized in that, The shovel mechanism further includes a shovel fixing block (250), wherein: the shovel fixing block (250) is connected to the third drive assembly (240); the tensioning assembly (25) is connected between the shovel fixing block (250) and the shovel (24), and is used to provide elasticity to move the shovel (24) away from the shovel fixing block (250) and close to the printing platform (3).

51. The 3D printing post-processing apparatus according to claim 50, characterized in that, The blade (24) has a fixed side and a floating side on opposite sides along the width direction. The fixed side is rotatably connected to the blade fixing block (250), and the floating side is configured to be in close contact with the printing platform (3) under the elastic force of the tensioning assembly (25).

52. The 3D printing post-processing apparatus according to claim 51, characterized in that, The edge of the floating side is provided with a cutting edge (2411); and / or, the shovel mechanism further includes a transition shaft (246), and the fixed side is rotatably connected to the shovel fixing block (250) through the transition shaft (246); and / or, the number of tensioning components (25) is two sets and they are respectively connected to both ends of the length direction of the shovel (24); and / or, the tensioning components (25) include one or more springs or torsion springs.

53. The 3D printing post-processing apparatus according to any one of claims 25 to 52, characterized in that, It also includes a drying assembly disposed on the post-processing body (21).

54. The 3D printing post-processing apparatus according to claim 29, characterized in that, It also includes a drying assembly disposed on the post-processing body (21), wherein the spraying element (9) is connected to the air supply module (28), and the drying assembly includes a heater (8) disposed on the air supply channel (281).

55. The 3D printing post-processing apparatus according to any one of claims 25 to 54, characterized in that, The first opening (22) engages with the printing platform (3); and / or, the first opening (22) engages with the printing platform (3) capping; and / or, the first opening (22) engages with the printing platform (3) sealingly.

56. The 3D printing post-processing apparatus according to any one of claims 25-55, characterized in that, It also includes curing components.

57. A feeding assembly, characterized in that, The device includes an external storage tank (10) detachably connected to the 3D printing post-processing apparatus according to any one of claims 25 to 56. The external storage tank (10) is connected to the processing chamber (211) via a feeding channel (62). The external storage tank (10) is provided with a flow channel control module (101). The flow channel control module (101) includes a feeding control module for controlling the external storage tank (10) to feed cleaning material into the processing chamber (211).

58. The feeding assembly according to claim 57, characterized in that, The external storage tank (10) is connected to the processing chamber (211) through the recycling channel (7). The flow channel control module (101) also includes a recycling control module for controlling the external storage tank (10) to recycle the cleaning material to the processing chamber (211). The feeding channel (62) and the recycling channel (7) are either integrated or separate.

59. The feeding assembly according to claim 58, characterized in that, The external storage tank (10) has a cleaning agent tank and a recycling tank (108) for holding cleaning materials. The feeding control module includes a feeding pump (63) and a liquid flow control component disposed on the flow channel between the cleaning agent tank and the treatment chamber (211). The recycling control module includes a return pump and a liquid flow control component disposed on the flow channel between the recycling tank (108) and the treatment chamber (211). The feeding pump (63) and the return pump are either integrally disposed or separately disposed.

60. The feeding assembly according to claim 59, characterized in that, The cleaning agent tanks are provided in multiple ways. The feed pump (63) is provided on the flow channel between each cleaning agent tank and the treatment chamber (211), and each of the cleaning agent tanks and the treatment chamber (211) is provided with a liquid flow control component.

61. The feeding assembly according to claim 60, characterized in that, The external storage box (10) includes a base (102) and a box body (103) detachably connected to the base (102). A guide assembly structure is provided between the base (102) and the box body (103). The box body (103) includes the cleaning agent bucket and the recycling bucket (108).

62. The feeding assembly according to claim 61, characterized in that, Both the feeding control module and the recycling control module are located on the base (102); The feeding control module further includes a cleaning agent inlet, a post-processing unit interface (1019), a feeding pump inlet pipe (10110), and a feeding pump outlet pipe (10111). The base (102) is provided with an external storage tank cleaning agent inlet connected to the cleaning agent tank. The cleaning agent inlet is connected to the external storage tank cleaning agent inlet. The post-processing unit interface (1019) is connected to the feeding channel (62). The inlet of the feeding pump (63) is connected to the cleaning agent inlet through the feeding pump inlet pipe (10110). The outlet of 63) is connected to the post-processing machine interface (1019) through the feed pump outlet pipe (10111). A liquid flow control device for controlling the connection and disconnection between the cleaning agent inlet interface and the feed pump inlet pipe (10110) is provided between the post-processing machine interface (1019) and the feed pump outlet pipe (10111). The recycling control module further includes a recycling liquid outflow interface (1018), a recycling liquid inflow interface, a return pump inflow pipe, and a return pump outflow pipe. The base (102) is provided with an external storage tank recycling liquid outflow interface (1022) that communicates with the recycling bucket (108). The recycling liquid outflow interface (1018) is connected to the external storage tank recycling liquid outflow interface (1022). The recycling liquid inflow interface is connected to the recycling channel (7). The inlet of the return pump is connected to the return pump inflow pipe. The liquid inlet is connected, and the outlet of the return pump is connected to the recovery liquid outlet (1018) through the return pump outlet pipe. A liquid flow control device for controlling the connection and disconnection between the recovery liquid inlet and the return pump outlet pipe is provided between the recovery liquid inlet and the return pump outlet pipe. A liquid flow control device for controlling the connection and disconnection between the recovery liquid outlet (1018) and the return pump outlet pipe is also provided between the recovery liquid outlet (1018) and the return pump outlet pipe. When the feeding channel (62) and the recycling channel (7) are integrated, the post-processing body interface (1019) and the recycling liquid inflow interface are integrated; when the feeding pump (63) and the return pump are integrated, the feeding pump inflow pipe (10110) and the return pump inflow pipe are integrated, and the feeding pump outflow pipe (10111) and the return pump outflow pipe are integrated.

63. The feeding assembly according to claim 59 or 60, characterized in that, The cleaning agent tank and the recycling tank (108) are integrated, or the cleaning agent tank and the recycling tank (108) are separate.

Images