Carrier assembly and control method therefor, and 3D printing post-processing apparatus

Abstract

The present application relates to a carrier assembly and a control method therefor, and a 3D printing post-processing apparatus. The carrier assembly is configured to be disposed on a post-processing body, and the post-processing body is provided with a first driving assembly. The carrier assembly comprises a carrier disposed on the post-processing body and used for carrying a printed member, the carrier is rotatably connected to the post-processing body, the first driving assembly is used to drive the carrier to rotate, and the carrier has a second opening capable of being opened and closed.

Description

Supporting components and their control methods and 3D printing post-processing devices Technical Field

[0001] This application relates to the field of 3D printing technology, and in particular to a support component, its control method, and a 3D printing post-processing device. Background Technology

[0002] A 3D printer includes a printer body, a printing platform mounted on the printer body, and an execution unit. The execution unit includes a three-axis motion system and a print head mounted on the power output end of the three-axis motion system. During printing, the print head ejects molten material and deposits it onto the printing platform or a previously cured material layer. The three-axis motion system drives the print head to move, stacking the printed parts layer by layer on the printing platform. After printing, the printed parts need to be removed from the printing platform and cleaned using a cleaning device, among other post-processing steps. Summary of the Invention

[0003] The purpose of this application is to provide a support component and its control method, as well as a 3D printing post-processing device, to solve the technical problems of low cleaning efficiency and the potential risk of printed parts falling out of the opening of the cleaning frame during the cleaning process in existing open cleaning frames.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A carrier assembly is provided on a post-processor body, the post-processor body having a first drive assembly. The carrier assembly includes a carrier member disposed on the post-processor body for carrying printed parts. The carrier member is rotatably connected to the post-processor body, and the first drive assembly is used to drive the carrier member to rotate. The carrier member has a second opening that can be opened and closed.

[0006] Furthermore, the support member includes two frame members, namely a first frame member having the second opening and a second frame member surrounding the second opening, the two frame members being configured to adjust the opening and closing of the second opening by relative rotation and / or movement of the two.

[0007] Furthermore, the carrier is detachably disposed on the post-processing body. When the carrier assembly is placed in the working position of the post-processing body, the carrier is rotatably connected to the post-processing body and engages in transmission with the first drive assembly.

[0008] Further, 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.

[0009] Further, 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.

[0010] Furthermore, the carrier has a hollow structure.

[0011] Furthermore, the two frame members are configured to adjust the opening and closing of the second opening by rotating relative to each other about the rotation center line of the carrier.

[0012] Furthermore, there are two first drive components. The first frame component and the second frame component are respectively provided with the second transmission connector. The first frame component is connected to one of the first drive components through the second transmission connector, and the second frame component is connected to the other first drive component through the second transmission connector.

[0013] This application also provides a 3D printing post-processing apparatus, including a post-processing body, a first drive assembly disposed on the post-processing body, and a support assembly as described above disposed on the post-processing body.

[0014] Furthermore, it also includes a second drive assembly disposed on the post-processing body, the second drive assembly being used to drive the two frame components to rotate relative to each other and / or move to adjust the opening and closing of the second opening.

[0015] Furthermore, the first driving component and the second driving component are the same driving component.

[0016] Further, the first drive assembly includes a first transmission connector rotatably connected to the post-processing unit, the first transmission connector having a transmission groove, and the bearing assembly includes a second transmission connector disposed on the bearing, 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, the first transmission connector having a transmission protrusion, and the bearing assembly includes a second transmission connector disposed on the bearing, the second transmission connector having a transmission groove that inserts into the transmission groove.

[0017] Furthermore, the first transmission connector is provided with a transmission groove, and the post-processing unit is provided with a slot that communicates through the transmission groove of the first transmission connector; or, the second transmission connector is provided with a transmission groove, and the post-processing unit is provided with a plug that is inserted and fitted into the transmission groove of the second transmission connector.

[0018] Furthermore, the first drive assembly is provided in two parts; or; the carrier is detachably disposed on the post-processing body, and when the carrier assembly is placed in the working position of the post-processing body, the carrier is rotatably connected to the post-processing body and engages in transmission with the first drive assembly.

[0019] Furthermore, the first drive assembly includes a first motor and a first transmission structure. The first transmission structure includes a first drive wheel, a first driven wheel, and a first belt, wherein: the first motor is mounted on the post-processing body, and the first drive wheel is mounted on the output shaft of the first motor; the first driven wheel is connected to the frame component in a transmission manner; and the first belt is connected between the first drive wheel and the first driven wheel.

[0020] Furthermore, the post-processing unit is provided with a processing chamber, and the supporting component is disposed in the processing chamber; the processing chamber has a third opening in the insertion direction of the supporting component, and the post-processing unit is provided with an opening and closing door that covers the third opening.

[0021] This application also provides a control method for a support component, comprising: controlling a first drive component to drive two frame components to rotate relative to each other, thereby opening a second opening in the support component; controlling the first drive component to drive the two frame components to rotate relative to each other, thereby closing the second opening in the support component; and controlling the first drive component to drive the two frame components to rotate synchronously.

[0022] The beneficial effects of this application are:

[0023] The carrier assembly provided in this application is used to be mounted on a post-processor body. A first drive assembly is provided on the post-processor body. The carrier assembly includes a carrier member mounted on the post-processor body for carrying printed parts. The carrier member is rotatably connected to the post-processor body, and the first drive assembly is used to drive the carrier member to rotate. The carrier member has a second opening that can be opened and closed.

[0024] The carrier assembly provided in this application, when cleaning printed materials, first opens the second opening and places the printed material into the carrier assembly through the second opening; then closes the second opening and activates the first drive assembly. Driven by the first drive assembly, the carrier assembly rotates, causing the printed material to rotate, thus achieving comprehensive, thorough, and uniform cleaning of the printed material. Because the second opening is closed during the cleaning process, the printed material will not detach from the carrier assembly, making the entire cleaning process safer and more reliable. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 is a three-dimensional structural diagram of the 3D printing post-processing device and printing platform provided in the embodiments of this application.

[0027] Figure 2 is a longitudinal cross-sectional schematic diagram of the 3D printing post-processing device and printing platform provided in the embodiments of this application.

[0028] Figure 3 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.

[0029] Figure 4 is a three-dimensional structural diagram of the sprayed part provided in the embodiment of this application.

[0030] Figure 5 is a three-dimensional structural schematic diagram of the shovel mechanism provided in the embodiment of this application.

[0031] Figure 6 is an exploded view of the shovel mechanism provided in the embodiment of this application.

[0032] Figure 7 is a partial top view of the shovel mechanism provided in an embodiment of this application.

[0033] Figure 8 is a cross-sectional view of Figure 7 at point AA.

[0034] Figure 9 is a cross-sectional view of Figure 7 at point BB.

[0035] Figure 10 is a three-dimensional structural schematic diagram of the 3D printing post-processing device provided in the embodiment of this application.

[0036] Figure 11 is an exploded view of the 3D printing post-processing apparatus provided in an embodiment of this application.

[0037] Figure 12 is a schematic diagram of the internal structure of the processing chamber provided in an embodiment of this application.

[0038] Figure 13 is an exploded view of the carrier component and the first driving component provided in the embodiment of this application.

[0039] Figure 14 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.

[0040] Figure 15 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.

[0041] Figure 16 is a schematic diagram of the state of the carrier component when it is placed into or removed from the post-processing body according to the embodiment of this application.

[0042] Figure 17 is an enlarged view of point A in Figure 16.

[0043] Figure 18 is an enlarged view of point B in Figure 16.

[0044] Figure 19 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.

[0045] Figure 20 is a top view of the 3D printing system provided in an embodiment of this application.

[0046] Figure 21 is a three-dimensional structural diagram of the 3D printing system provided in an embodiment of this application.

[0047] Figure 22 is a schematic diagram of the flow channel control module structure provided in the embodiment of this application.

[0048] Figure 23 is a schematic diagram of the external storage box structure provided in the embodiment of this application.

[0049] Figure 24 is a schematic diagram of the base structure provided in an embodiment of this application.

[0050] Figure 25 is an exploded view of the external storage box provided in an embodiment of this application.

[0051] Figure 26 is a schematic diagram of the internal structure of the processing chamber from another perspective provided in an embodiment of this application.

[0052] Figure 27 is a top view of the internal structure of the processing chamber provided in an embodiment of this application.

[0053] Figure 28 is a schematic diagram of the external structure of the post-processing unit provided in an embodiment of this application.

[0054] Figure 29 is a flow channel control logic diagram of the post-processing device for cleaning process provided in an embodiment of this application.

[0055] Icons: 1-Post-processing unit; 11-Processing chamber; 12-Top wall; 121-First opening; 13-Side wall; 131-Guide ridge; 14-Bottom wall; 141-Recovery port; 142-Air inlet; 143-Recessed area; 144-Outlet; 145-Spray channel; 146-Spray pump; 15-Rear wall; 151-Feeding port; 152-Second vent; 16-Opening door; 161-Handle; 162-Viewing window; 17-Sealing ring; 18-Ventilation channel; 2-Bearing component; 21-Bearing element; 211-Second opening; 212-Frame component; 22-Second transmission connector; 23-Transmission groove; 24-Mounting bracket; 241-Guide slide; 242-First mounting hole; 243-Push-pull handle; 3-Shovel mechanism; 31-Shovel blade; 311-Cutting edge; 32-Third drive assembly; 321-Third motor; 322-Lead screw; 323-Third drive wheel; 324-Third driven wheel; 325-Third belt; 326-Tensioning wheel; 33-Guide assembly; 331-Guide rail; 332-Slider; 34-Shovel blade fixing block; 35-Tensioning assembly; 36-Adapter shaft; 4-Air supply assembly; 41-Airflow control component; 42-Air supply channel; 5-First drive assembly; 51-First transmission connector; 52-Transmission protrusion; 53-First motor; 54-First drive wheel; 55-First driven wheel; 56-First belt; 6-Feeding assembly; 61-Internal storage box; 62-Feeding channel; 63-Feeding pump; 7-Recovery channel; 8-Heater; 9-Spraying component; 100 - 3D printer; 110 - Printing platform; 120 - Printer body; 200 - Conveying device; 210 - Horizontal transfer assembly; 220 - Vertical transfer assembly; 10 - External storage tank; 101 - Flow channel control module; 1011 - First flow control component; 1012 - Second flow control component; 1013 - Third flow control component; 1014 - Fourth flow control component; 1015 - Fifth flow control component; 1016 - First cleaning agent inlet; 1017 - Second cleaning agent inlet; 1018 - Recovered liquid outlet; 1019 - Post-processing body interface; 10110 - Supply... 10111 - Feed pump inlet pipe; 102 - Base; 1021 - First external storage tank cleaning agent inlet interface; 1022 - External storage tank recovery liquid outlet interface; 1023 - Second external storage tank cleaning agent inlet interface; 103 - Tank body; 104 - Tank cover; 105 - Display screen; 106 - First cleaning agent tank; 107 - Second cleaning agent tank; 108 - Recovery tank; 109 - Feeding channel connector. Detailed Implementation

[0056] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. The described embodiments are some, but not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] It should be noted that in the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] It should be noted that, in the description of this application, the terms "connection" and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Existing 3D printing post-processing modules consist of multiple independently distributed devices with different functions. The entire post-processing process is cumbersome, costly, bulky, and inconvenient to disassemble and move. Cleaning devices typically include a cleaning frame to hold the printed parts. Most cleaning frames are open, meaning the opening cannot be closed. These frames cannot rotate during cleaning, resulting in low cleaning efficiency and a risk of the printed parts detaching from the frame opening during cleaning.

[0060] Based on this, one embodiment of this application provides a 3D printing post-processing device. Referring to Figures 1 and 2, the 3D printing post-processing device includes a post-processing body 1, a processing chamber 11 and a scraping mechanism 3 disposed on the post-processing body 1, wherein: the processing chamber 11 has a first opening 121; the scraping mechanism 3 is used to separate the printed part on the printing platform 110 from the printing platform 110 and allow it to enter the processing chamber 11 through the first opening 121.

[0061] The working process of the 3D printing post-processing device provided in this application is as follows: After printing is completed, the printing platform 110 and the printed parts attached to it are moved together to the first opening 121 of the processing chamber 11; then, the scraping mechanism 3 separates the printed parts on the printing platform 110 from the printing platform 110, and the separated printed parts naturally fall into the processing chamber 11 through the first opening 121 under the action of gravity. After that, the printed parts complete the processing operation in the processing chamber 11.

[0062] As described above, the 3D printing post-processing device provided in this application integrates the processing chamber 11 and the scraper mechanism 3 onto the post-processing body 1, resulting in a compact overall structure with minimal space occupation, facilitating easy disassembly and relocation. During operation, the printed parts, after separating from the printing platform 110, naturally fall into the processing chamber 11, eliminating the need for manual removal of the printed parts from the printing platform 110 and placement into the processing chamber 11. This simplifies the post-processing process and reduces manual labor.

[0063] Referring again to Figures 1 and 2, in this embodiment, the post-processing unit 1 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 11. A first opening 121 for inserting a printing platform 110 is provided on the top of the processing chamber 11 (on the top wall 12). In the above structure, since the printed parts complete the processing operation within the processing chamber 11, 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 11 is not limited; it can be a cuboid, a cylinder, a frustum, etc. The location of the first opening 121 is not limited to the top of the processing chamber 11; it can be located on the side of the processing chamber 11.

[0064] In some embodiments, the processing chamber 11 has a third opening, and the post-processing unit 1 is provided with a door 16 that covers the third opening. The third opening and the door 16 that covers the third opening are provided on the wall (front wall) of the processing chamber 11. 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 11 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 11; 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 121.

[0065] In some embodiments, the first opening 121 cooperates with the printing platform 110 so that the printing platform 110 on the 3D printer 100 is directly placed at the first opening 121, and the post-processing device performs post-processing operations on the printed parts on the printing platform 110. In some embodiments, the processing chamber 11 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 121 cooperates with the printing platform 110 as a cover. In some embodiments, in order to improve the sealing of the processing chamber 11 during the post-processing of the printed parts and ensure the environmental conditions and safety of the post-processing operation, the first opening 121 can be sealed with the printing platform 110, that is, the inner wall surface of the first opening 121 can be sealed and fitted with the peripheral surface of the printing platform 110.

[0066] In some embodiments, the printing platform 110 is limited to the first opening 121; in one embodiment, the post-processing unit 1 is provided with a fourth driving component for driving the printing platform 110 to move, the fourth driving component includes a fourth motor that drives the printing platform 110 to move in a transmission cooperation with the printing platform 110, and the post-processing unit 1 is provided with a limit switch for detecting whether the printing platform 110 has moved to the first opening 121; the limited cooperation between the printing platform 110 and the first opening can be achieved not only by the limit switch, but also by setting a mechanical limit structure.

[0067] Furthermore, a sealing ring 17 is provided on the inner wall surface of the first opening 121 and / or the peripheral surface of the printing platform 110. For example, one or more sealing rings 17 are provided on the inner wall surface of the first opening 121, and the sealing rings 17 are used to achieve a tight fit between the first opening 121 and the printing platform 110, thereby improving the sealing performance at the connection point between the two.

[0068] In some embodiments, the 3D printing post-processing apparatus further includes a support component 2 disposed in the processing chamber 11 for carrying the printed part and a cleaning component disposed in the post-processing body 1 for applying cleaning material to the surface of the printed part. The cleaning component is disposed correspondingly to the support component 2. After separation, the printed part is carried on the support component 2, and the cleaning component applies cleaning material to the surface of the printed part located on the support component 2 to clean the residual resin on the surface of the printed part.

[0069] In some embodiments, the cleaning assembly includes a spraying assembly for spraying cleaning material onto the surface of the printed part. The spraying assembly can be connected to a source of cleaning material, and the cleaning material provided by the source is sprayed onto the surface of the printed part via the spraying assembly to clean residual resin from the surface of the printed part. It should be noted that the source of cleaning material can be located in the post-processing unit 1, in the processing chamber 11, or outside the processing chamber 11. It can be a combined source installed in and outside the processing chamber 11, or it can be an independent source installed separately in the post-processing device.

[0070] In some embodiments, the cleaning assembly includes a material holding section 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 2, and the printed part located on the carrier assembly 2 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 11.

[0071] In some embodiments, the spraying assembly includes a spraying element 9 disposed in the material holding section and facing the carrier assembly 2, and an air supply assembly 4 communicating with the spraying element 9. The air supply assembly 4 sprays gas through the spraying element 9 onto the cleaning material in the material holding section, and the cleaning material in the material holding section is sprayed onto the printout located on the carrier assembly 2 by the gas spray. The cleaning material is contained in the material holding section and sprayed onto the printout by the gas spray, which can greatly reduce the amount of cleaning material used.

[0072] In some embodiments, the spraying assembly includes a spraying element 9 disposed in the material holding section and facing the bearing assembly 2. The spraying element 9 is connected to the spraying source, and the spraying source pressurizes the cleaning material to the spraying element 9 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 146 is disposed in the spraying channel 145.

[0073] Referring to Figure 12, in some embodiments, a first material holding area is formed at the bottom of the processing chamber 11. 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 11, and the carrier component 2 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 component 2 by gas jet 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 component 2 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 11. Optionally, the recessed area 143 is inverted cone-shaped. It should be noted that the printed parts located on the carrier component 2 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 the second material holding area is not limited, and only the second material holding area may be set, and the first material holding area may be omitted.

[0074] In some embodiments, the air supply assembly 4 includes an air supply channel 42 and an airflow control element 41. The air supply channel 42 connects the processing chamber 11 to the outside of the post-processing device, and the air supply channel 42 is connected to the processing chamber 11. The airflow control element 41 is disposed in the air supply channel 42. The airflow control element 41 is used to send air from outside the post-processing device into the processing chamber 11 through the air supply channel 42, and uses the impact force of the airflow to spray the cleaning material in the processing chamber 11 onto the surface of the printed part, so that the cleaning material is evenly and finely distributed on the surface of the printed part to achieve thorough cleaning. The airflow control element 41 can be a blower or a fan, etc. In some embodiments, the air supply channel 42 is provided with a first control valve, which can be a solenoid valve, and the first control valve controls the opening and closing of the air supply channel 42.

[0075] In some embodiments, a first vent is formed between the air supply channel 42 and the processing chamber 11, and the spraying element 9 is disposed at the first vent. Referring to FIG4, the spraying element 9 may optionally be a rubber part sealed at the first vent. The spraying element 9 is provided with 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 11 from flowing back into the air supply channel 42.

[0076] In one specific 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 42 or the airflow pressure does not reach a set value, the ventilation slit closes, thereby preventing the cleaning material in the treatment chamber 11 from flowing back into the air supply channel 42. When the airflow pressure in the air supply channel 42 reaches the set value, the airflow forces open the ventilation slit and enters the treatment chamber 11 through the ventilation slit, thus creating a spraying effect on the cleaning material.

[0077] In some embodiments, the top of the post-processing unit 1 is provided with a ventilation channel 18 communicating with the processing chamber 11. The ventilation channel 18 balances the internal and external air pressures of the processing chamber 11, preventing excessive internal pressure and ensuring airflow within the processing chamber 11. 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 11 while meeting the airtightness requirements, and to prevent the cleaning material from being trapped and flowing back into the processing chamber 11 without being carried out by the gas. 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 these.

[0078] Referring to Figure 3, the 3D printing post-processing apparatus further includes a feeding assembly 6 disposed on the post-processing body 1 for feeding cleaning material into the processing chamber 11. 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 11, and the connection port between the feeding channel 62 and the processing chamber 11 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 material, and the feeding pump 63 is used to feed the cleaning material in the internal storage tank 61 into the processing chamber 11 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 material includes, but is 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 material.

[0079] In some embodiments, the connection between the feeding channel 62 and the processing chamber 11 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 11 corresponds to the holding part of the cleaning assembly, and the internal storage tank 61 and the 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 holding part, and the printed parts are cleaned through the cleaning material in the holding part. Referring to FIG12, in this embodiment, a feeding port 151 is provided on the upper side (upper side of the rear wall 15) of the processing chamber 11, and the feeding channel 62 is connected to the processing chamber 11 through the feeding port 151. The feeding port is the connection between the feeding channel 62 and the processing chamber 11. The feeding pump 63 sends the cleaning material in the internal storage tank 61 into the processing chamber 11 from the feeding port 151, and the cleaning material falls from the feeding port 151 into the holding part located at the bottom of the processing chamber 11.

[0080] Referring again to Figure 2, in some embodiments, the 3D printing post-processing apparatus further includes a recovery component disposed in the post-processing body 1 for recovering the cleaned material in the processing chamber 11. The recovery component includes a recovery port 141 corresponding to the material holding section. The recovery component also includes a recovery channel 7 connected to the recovery port 141, which connects the internal storage tank 61 and the material holding section. The recovery component also includes a recovery control component for controlling the opening and closing of the recovery component. In one embodiment, the recovery control component includes a third control valve disposed in the recovery channel 7. The third control valve can be a solenoid valve or a manual valve, which is used to open or close the recovery channel 7. During the cleaning process, the third control valve closes and blocks the recovery channel 7. At this time, the cleaned material in the material holding section cannot be discharged through the recovery channel 7. After the cleaning is completed, the third control valve opens and connects the recovery channel 7. At this time, the cleaned material will flow back into the internal storage tank 61 through the recovery channel 7 for recycling. It should be noted that the recovery port 141 can also be connected to the outside of the post-processing device to discharge the cleaned material from the processing chamber 11 for further processing. One, two, or more recovery ports 141 can be provided corresponding to the material holding section; for example, the first material holding area and the second material holding area may each have a recovery port 141. The recovery port 141 is usually located at the bottom of the material holding section to facilitate the collection of cleaned material and its recovery. The recovery port and the discharge port 144 can be integrated or separate.

[0081] In some embodiments, the feeding assembly 6 includes a feeding channel 62, which connects the processing chamber 11 and the feeding source. The connection port between the feeding channel 62 and the processing chamber 11 is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning material to the processing chamber 11 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 3D printing post-processing device.

[0082] In some embodiments, the carrier assembly 2 includes a carrier member 21 for carrying the printed parts, and the carrier member 21 is rotatably connected to the post-processing unit 1. During post-processing, the rotation of the carrier member 21 causes the printed parts to rotate, enabling the printer to perform post-processing comprehensively, fully, and evenly. In some embodiments, the carrier member 21 may also be fixedly installed to the post-processing unit 1, and the carrier member 21 cannot rotate relative to the post-processing unit 1, thus providing the function of carrying the printed parts.

[0083] In some embodiments, the rotation center line of the carrier 21 is perpendicular to the spraying direction of the spraying assembly. The carrier 21 drives the print to rotate, causing the spraying assembly to spray cleaning material from multiple directions relative to the print, allowing the print 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 21 is horizontal. In some embodiments, the rotation center line of the carrier 21 is parallel to the liquid surface of the cleaning material in the holding part. The carrier 21 drives the print to rotate, allowing more surfaces of the print to contact the cleaning material in the holding part, achieving more thorough cleaning. The rotation center line of the carrier 21 is not limited to the above settings; it can be horizontal, vertical, or in other orientations.

[0084] In some embodiments, the carrier assembly 2 is detachably mounted on the post-processing unit 1. Post-processing is performed with the carrier assembly 2 installed on the post-processing unit 1. After post-processing, the carrier assembly 2 can be removed to retrieve the printed material. The printed material can also be easily retrieved when the carrier assembly 21 is in the form of a box, frame, or similar shape. Modular replacement of the carrier assembly 2 is also possible, allowing for the replacement of carrier assemblies of the same or different specifications. In some embodiments, the carrier assembly 2 can also be fixedly mounted to the post-processing unit 1, providing a carrier function for the printed material.

[0085] Referring again to Figures 1 and 2, in some embodiments, the post-processing unit 1 is provided with a first drive assembly 5, and the carrier 21 is connected to the first drive assembly 5 for transmission, and the carrier 21 is driven to rotate by the first drive assembly 5.

[0086] In some embodiments, the carrier component 2 includes a carrier component 21 for carrying printed parts. The carrier component 2 is detachably disposed on the post-processing body 1. The post-processing body 1 is provided with a first drive component 5. When the carrier component 2 is placed in the working position of the post-processing body 1, the carrier component 21 is rotatably connected to the post-processing body 1 and is in transmission cooperation with the first drive component 5.

[0087] Referring to Figures 13 to 15, in some embodiments, the first drive assembly 5 includes a first transmission connector 51 rotatably connected to the post-processing unit 1, and the bearing assembly 2 includes a second transmission connector 22 disposed on the bearing assembly 21. The first transmission connector 51 is provided with a transmission groove 23, and the second transmission connector 22 is provided with a transmission protrusion 52 that is inserted into the transmission groove 23. The insertion and engagement of the transmission groove 23 and the transmission protrusion 52 enables the bearing assembly 2 and the post-processing unit 1 to be removable and placeable. The bearing assembly 2 can be easily removed from the post-processing unit 1, and it can also be easily installed on the post-processing unit 1, achieving flexible loading and unloading. With the insertion and engagement of the transmission groove 23 and the transmission protrusion 52, a circumferential relative limit is formed between the first transmission connector 51 and the second transmission connector 22. The rotation of the first transmission connector 51 of the first drive assembly 5 drives the second transmission connector 22 to rotate, thereby enabling the bearing assembly 21 to rotate.

[0088] In some embodiments, the post-processing body 1 is provided with a slot that communicates through the transmission groove 23 of the first transmission connector 51. The slot plays a guiding role during the loading and unloading of the bearing assembly 2 in the post-processing body 1, and the bearing assembly 2 can be installed or removed from the post-processing body 1 more conveniently.

[0089] In some embodiments, the carrier assembly 2 includes a mounting frame 24, and the carrier member 21 is rotatably connected to the mounting frame 24 via a second transmission connector 22. The mounting frame 24 is provided with a plug that engages with the transmission groove 23 of the first transmission connector 51. The carrier assembly 2 is detachably mounted on the post-processing unit 1 via the mounting frame 24. 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 2 during the detachment and repositioning process on the post-processing unit 1. Furthermore, the provision of both plugs and slots can improve the installation stability of the carrier assembly 2 on the post-processing unit 1. The absence of both slots and plugs does not affect the installation of the carrier assembly 2 on the post-processing unit 1. It should also be noted that when both slots and plug-ins are set, the transmission groove 23 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 23 are inserted and engaged. When the bearing component 2 is placed in the working position of the post-processing body 1, the transmission groove 23 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.

[0090] Referring to Figures 16 to 18, in some embodiments, the first drive assembly 5 includes a first transmission connector 51 rotatably connected to the post-processing unit 1, and the bearing assembly 2 includes a second transmission connector 22. The second transmission connector 22 is provided with a transmission groove 23, and the first transmission connector 51 is provided with a transmission protrusion 52 that is inserted into the transmission groove 23. The insertion and engagement of the transmission groove 23 and the transmission protrusion 52 enables the bearing assembly 2 to be easily removed from the post-processing unit 1 and easily installed in the post-processing unit 1, achieving flexible loading and unloading. With the insertion and engagement of the transmission groove 23 and the transmission protrusion 52, a circumferential relative limit is formed between the first transmission connector 51 and the second transmission connector 22. The rotation of the first transmission connector 51 of the first drive assembly 5 drives the second transmission connector 22 to rotate, thereby enabling the bearing assembly 21 to rotate.

[0091] In some embodiments, the post-processing unit 1 is provided with a plug that is inserted into the transmission groove 23 of the second transmission connector 22. The plug plays a guiding role during the loading and unloading of the post-processing unit 1, and the load-bearing component 2 can be installed or removed from the post-processing unit 1 more conveniently.

[0092] Referring to Figures 16 to 18, in some embodiments, the carrier assembly 2 includes a mounting frame 24. The carrier member 21 is rotatably connected to the mounting frame 24 via a second transmission connector 22. The mounting frame 24 has a slot that communicates through the transmission groove 23 of the second transmission connector 22. The carrier assembly 2 is detachably mounted on the post-processing unit 1 via the mounting frame 24. 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 2 during the detachment and repositioning process on the post-processing unit 1. Furthermore, the provision of both the plug-in and the slot can also improve the installation stability of the carrier assembly 2 on the post-processing unit 1. The absence of both the slot and the plug-in does not affect the installation of the carrier assembly 2 on the post-processing unit 1. It should also be noted that when both slots and plug-ins are set, the transmission groove 23 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 23 are inserted and engaged. When the bearing component 2 is placed in the working position of the post-processing body 1, the transmission groove 23 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.

[0093] In some embodiments, when the slot and the transmission groove 23 are in a through-connection state, the slot and the transmission groove 23 are in a straight line (as shown in Figure 17). The slot and the transmission groove 23 can also be in a curved through-connection state. The through-connection direction of the slot and the transmission groove 23 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 23 along the through-connection direction of the slot and the transmission groove 23. 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 23 along the through-connection direction of the slot and the transmission groove 23. On the other hand, it can realize the transmission cooperation between the first transmission connector 51 and the second transmission connector 22. It should be noted that the first transmission connector 51 can rotate to make the transmission groove 23 and the slot in a through-connected state, or to make the transmission groove 23 and the slot in a misaligned and non-connected state. When the transmission groove 23 and the slot are in a through-connected state, the bearing component 2 can be placed on the post-processing body 1. When the transmission groove 23 and the slot are in a misaligned and non-connected state, the bearing component 2 cannot be removed from the post-processing body 1 or installed to the working position of the post-processing body 1.

[0094] Referring again to Figures 17 and 18, in some embodiments, one of the carrier component 2 and the post-processing body 1 is provided with a guide groove 241 (i.e., the slot mentioned above) extending in the insertion direction, and the other is provided with a guide protrusion 131 (i.e., the plug mentioned above) extending in the insertion direction. The guide protrusion 131 can be slidably disposed in the guide groove 241 in the insertion direction.

[0095] In this embodiment, guide grooves 241 are respectively provided on both sides of the support component 2 in the vertical direction along the insertion direction, and guide protrusions 131 are respectively provided on the two side walls of the processing chamber 11 in the vertical direction along the insertion direction. The guide protrusions 131 are slidably disposed in the guide grooves 241. By cooperating with the guide grooves 241 and the guide protrusions 131, the movement trajectory of the mounting frame 24 can be restricted, thereby improving the stability of the mounting frame 24.

[0096] Based on the above structure, the mounting bracket 24 is provided with first mounting holes 242 on both sides of the vertical direction along the insertion direction, and the first mounting holes 242 penetrate the guide groove 241 on the same side; the second transmission connector 22 is inserted into the first mounting holes 242 one by one, and the transmission groove 23 and the guide groove 241 on the same side are configured to cross or be collinear during the rotation of the bearing component 2.

[0097] The processing chamber 11 has two side walls perpendicular to the insertion direction respectively provided with second mounting holes, and the second mounting holes pass through the guide protrusion 131 on the same side; the first transmission connector 51 is inserted into the second mounting hole one by one, and the transmission protrusion 52 and guide protrusion 131 on the same side are configured to cross or be collinear during the rotation of the bearing assembly 2.

[0098] It should be noted that when the guide groove 241 and transmission groove 23 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 23 are both parallel to the insertion direction; when the guide groove 241 and transmission groove 23 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 19), the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 23 are both intersecting with the insertion direction.

[0099] Optionally, the carrier 21 can be a cylindrical body, a spherical body, a clamp, a bracket, a tray, a support platform, or a frame. The structure of the carrier 21 is not limited to these, as long as it can fulfill the function of carrying the printed parts. The carrier component 2 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 holding area through the hollow structure.

[0100] In some embodiments, the carrier 21 includes two frame members 212, namely a first frame member having a second opening 211 and a second frame member surrounding the second opening 211. The two frame members 212 (the first frame member and the second frame member) are configured to adjust the opening and closing of the second opening 211 by relative rotation and / or movement, and the second opening 211 is correspondingly disposed with respect to the first opening 121. In some embodiments, the post-processing unit 1 is provided with a second drive assembly for driving the two frame members 212 (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 211. In some embodiments, the post-processing unit 1 is provided with a second drive assembly for driving the two frame members 212 (the first frame member and the second frame member) to rotate and / or move so that the second opening 211 corresponds to the first opening. The second drive assembly drives the two frame members 212 to move relative to each other, opening the second opening 211. The second drive assembly then drives the two frame members 212 to move, aligning the second opening 211 with the first opening 121 (i.e., with the printing platform 110 covering the first opening 121). The printed piece falls from the second opening 211 into the first frame member. The second drive assembly then drives the two frame members 212 to move relative to each other, closing the second opening 211. The printed piece is then enclosed between the first and second frame members (i.e., within the carrier member 21), allowing the printed piece to rotate with the carrier member. It should be noted that the first drive assembly that drives the relative movement of the two frame members 212 to adjust the opening and closing of the second opening 211, and the second drive assembly that drives the two frame members 212 to rotate and / or move, aligning the second opening 211 with the first opening 121, can be the same drive assembly or different drive assemblies.

[0101] In some embodiments, the carrier 21 includes a first frame member having a second opening 211 and a second frame member surrounding the second opening 211. The two frame members 212 (the first frame member and the second frame member) are configured to adjust the opening and closing of the second opening 211 by rotating relative to each other about the rotation center line of the carrier 21. The second opening 211 is correspondingly provided with the first opening 121.

[0102] In some embodiments, the two frame members 212 (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 21 via the first drive assembly 5 to adjust the opening and closing of the second opening 211. In some embodiments, the two frame members 212 (the first frame member and the second frame member) are configured to rotate about the rotation center line of the carrier member 21 via the first drive assembly 5 so that the second opening 211 corresponds to the first opening 121.

[0103] In some embodiments, the two frame members 212 are driven to rotate relative to each other around the rotation center line of the carrier member 21 by the first driving component 5 to open the second opening 211, and the two frame members 212 are driven to rotate around the rotation center line of the carrier member 21 by the first driving component 5 to make the second opening 211 correspond to the first opening 121.

[0104] In this embodiment, two first driving components 5 are provided. The first frame component and the second frame component are each provided with a second transmission connector 22. The first frame component is connected to one of the first driving components 5 via the second transmission connector 22, and the second frame component is connected to the other first driving component 5 via the second transmission connector 22, allowing the two frame components 212 to rotate synchronously or relative to each other. The first driving components 5 drive the two frame components 212 to rotate relative to each other around the rotation center line of the support component 21, causing the second opening 211 to open (the second opening 211 opens when the two frame components 212 rotate relative to each other to the state shown in Figure 15). The first driving components 5 also drive the two frame components 212 to rotate synchronously around the rotation center line of the support component 21, causing the second opening 211 to correspond to the first opening 121 (i.e., to the printing platform 110 covering the first opening 121). The printed part falls into the first frame component from the second opening 211, and is then driven by the first driving component... The driving component 5 drives the two frame members 212 to rotate relative to each other around the rotation center line of the carrier member 21, thereby closing the second opening 211 (when the two frame members 212 rotate relative to each other to the state shown in Figure 14, the second opening 211 is closed). The printed part is surrounded between the first frame member and the second frame member (i.e., the carrier member 21). The first driving component 5 drives the carrier member 21 to rotate around the rotation center line of the carrier member 21 (i.e., the first driving component 5 drives the two frame members 212 to rotate synchronously around the rotation center line of the carrier member 21), thereby achieving the rotation of the printed part. It should be noted that the driving component that drives the two frame members 212 to rotate relative to each other around the rotation center line of the carrier member 21 to adjust the opening and closing of the second opening 211 and the driving component that drives the two frame members 212 to rotate synchronously around the rotation center line of the carrier member 21 so that the second opening 211 and the first opening 121 correspond to the same driving component or different driving components. It should also be noted that there are two ways to make the two frame components 212 rotate relative to each other: one is that one frame component 212 remains stationary while the other frame component 212 rotates, and the other is that the two frame components 212 rotate simultaneously in opposite directions or rotate asynchronously.

[0105] In this embodiment, as shown in FIG13, both frame members 212 are semi-cylindrical tubes, nested inside and outside each other, and capable of rotating around the rotation center line of the support member 21. Optionally, the rotation center line of the support member 21 is the axis of the semi-cylindrical tube. In some embodiments, one frame member 212 may have an opening, while the other frame member 212 may be configured as a cover plate structure; by rotating or moving the two frame members 212 relative to each other, the cover plate structure frame member 212 may approach or move away from the opening of the other frame member 212. When the cover plate structure frame member 212 approaches and covers the opening of the other frame member 212, the second opening 211 of the support member closes; when the cover plate structure frame member 212 moves away from the opening of the other frame member 212, the second opening 211 of the support member opens.

[0106] Referring again to Figure 15, in this embodiment, the first 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 unit 1, 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 212 via a first transmission connector 51. The first belt 56 connects the first drive wheel 54 and the first driven wheel 55.

[0107] 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 212 rotate synchronously, the carrier component 21 can be controlled to rotate around the rotation center line, allowing the carrier component 21 to rotate during post-processing such as cleaning, so as to perform efficient and comprehensive post-processing on the printed parts. By making the two frame components 212 rotate relative to each other, the opening and closing, the degree of opening, and the opening position of the second opening 211 can be controlled, so that the second opening 211 opens towards the first opening 121 on the post-processing machine body 1 during the material scraping process, and closes during post-processing such as cleaning, to prevent the printed parts from being thrown out.

[0108] In other embodiments, the opening and closing of the second opening 211 can also be controlled by manually rotating the two frame components 212.

[0109] In some embodiments, without the driving force of any driving component, the two frame members 212 are in a state where the second opening 211 is open and corresponds to the first opening 121; or, the two frame members 212 rotate or rotate relative to each other around the rotation center line of the support member 21, changing from other states to the state where the second opening 211 is open and corresponds to the first opening 121. In this state, the two frame members 212 are in a stable, stationary state without the driving force of any driving component. In this embodiment, the two frame members 212 rotate or rotate relative to each other around the rotation center line of the support member 21 due to gravity, changing from other states to the state where the second opening 211 is open and corresponds to the first opening 121.

[0110] The support assembly 2 is disposed in the processing chamber 11 and is correspondingly arranged to the first opening 121. In this embodiment, when the support assembly 2 is in a stable and stationary state without the driving force of any driving assembly, the second opening 211 is open and corresponds to the first opening 121 (the second opening 211 faces the first opening 121). Alternatively, the support assembly 2 may be in a stable and stationary state under the driving force of the driving assembly, with the second opening 211 open and corresponding to the first opening 121 (the second opening 211 faces the first opening 121).

[0111] In some embodiments, the processing chamber 11 has a third opening in the insertion direction of the support assembly 2, and the post-processing body 1 is provided with an opening and closing door 16 that covers the third opening. In this embodiment, the insertion direction of the support assembly 2 is the front-rear direction of the post-processing device, and the third opening is located on the front wall of the processing chamber 11.

[0112] In some embodiments, to facilitate the pushing and pulling of the support assembly 2, the mounting frame 24 is provided with a push-pull handle 243; after the support assembly 2 is installed in the processing chamber 11, the push-pull handle 243 is located on the side of the mounting frame 24 near the opening and closing door 16 of the processing chamber 11. 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 2 from the processing chamber 11. It should be noted that the push-pull handle 243 can also be provided on the support member 21.

[0113] When the second opening 211 is in the 180° open state (i.e., the state shown in Figure 16), the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 23 are parallel to the insertion direction. At this time, the carrier assembly 2 can be installed or removed. When the second opening 211 is in the closed state or other open states, the carrier assembly 2 can only rotate around its rotation center line, which makes the installation of the carrier assembly 2 more accurate and the operation more efficient. In addition, when the second opening 211 is in the 180° open state, the two nested frame members 212 are fully fitted, and the overall height of the carrier assembly 2 is at its minimum, which makes it easier to install or remove the carrier 21 from the post-processing unit 1.

[0114] In this embodiment, during use, the control method for the carrier component 2 is as follows: the control device controls the first drive component 5 to drive the two frame members 212 to rotate relative to each other, so that the second opening 211 of the carrier member 21 opens and faces the first opening 121; then, the printed part falls into the carrier member 21 through the second opening 211; in addition, if the second opening 211 of the carrier member 21 is already open and facing the first opening 121 in the initial state, the relative rotation of the two frame members 212 does not need to be driven. It should be noted that the size of the second opening 211 can be controlled by the relative rotation of the two frame members 212 to adapt to the size of the printed part, so that the printed part can fall slowly into the carrier member 21. Next, the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate relative to each other, so that the second opening 211 of the carrier 21 is closed; then the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate synchronously. After cleaning is completed, the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate relative to each other, so that the second opening 211 of the carrier 21 is opened 180°, and the mounting bracket 24 together with the carrier 21 on it is taken out.

[0115] Referring to FIG2, in some embodiments, the scraping mechanism 3 includes a scraper 31 and a third drive assembly 32, the third drive assembly 32 being used to drive the scraper 31 to move, so as to scrape off the printed parts on the printing platform 110 and allow the printed parts to enter the processing chamber 11.

[0116] Using the above structure, the working process of the scraper mechanism 3 is as follows: After printing is completed, the printing platform 110 is inserted into the first opening 121. At this time, the printed parts (the dotted area in Figure 2 is the printed parts) are attached to the printing platform 110 at the bottom of the printing platform 110, and the second opening 211 of the carrier is facing upward and towards the first opening 121. The scraper 31 is located between the carrier and the first opening 121. At this time, the scraper 31 can move horizontally along the printing platform 110 to scrape off the printed parts on the printing platform 110. After the scraper mechanism 3 separates the printed parts on the printing platform 110 from the printing platform 110, the printed parts fall from the second opening 211 onto the carrier 21 under the action of gravity. Afterward, the cleaning component and the feeding component 6 clean the printed parts that have fallen onto the carrier 21.

[0117] Referring to Figures 5 and 6, optionally, a third drive assembly 32 is provided at both ends of the blade 31 along its length direction, making the blade 31 move more smoothly. In some embodiments, the blade mechanism 3 further includes a guide assembly 33, which includes a guide rail 331 disposed on the post-processing body 1 and a slider 332 slidably connected to the guide rail 331, the slider 332 being connected to the blade 31. Optionally, the guide assembly 33 is provided at both ends of the blade 31 along its length direction, and the guide assembly 33 can limit the movement trajectory of the blade 31, preventing the blade 31 from shaking. It should be noted that providing only one third drive assembly 32 can also achieve the purpose of driving the blade 31 to move.

[0118] In some embodiments, the scraper mechanism 3 further includes a tensioning component 35, which provides elastic force to keep the scraper 31 pressed tightly against the printing platform 110. In this embodiment, one end of the tensioning component 35 is disposed on the scraper 31 and the other end is disposed on the slider 332. Under no external force, the height of the working end of the scraper 31 is not lower than the height of the forming surface of the printing platform 110 when it is covered by the first opening 121. With the above structure, when the printing platform 110 is covered by the first opening 121, the forming surface of the printing platform 110 abuts against the working end of the scraper 31. If the scraper 31 is subjected to pressure from the printing platform 110, the reverse force of the tensioning component 35 on the scraper 31 makes the working end of the scraper 31 press tightly against the forming surface of the printing platform 110. In some embodiments, the scraper 31 is rotatably connected to the slider 332. It should be noted that the tensioning component 35 may include one or more springs or torsion springs and other elastic elements.

[0119] Referring again to Figures 5 and 6, in this embodiment, the third drive assembly 32 includes a third motor 321, a lead screw 322, a third drive wheel 323, a third driven wheel 324, and a third belt 325. The body of the third motor 321 is mounted on the post-processing body 1, and the third drive wheel 323 is mounted on the output shaft of the motor. The lead screw 322 extends along the moving direction of the scraper 31 and is rotatably mounted on the post-processing body 1. One end of the lead screw 322 is mounted on the third driven wheel 324, and one end of the scraper 31 is directly or indirectly screwed onto the lead screw 322. In this embodiment, the scraper mechanism 3 includes a scraper fixing block 34 screwed onto the lead screw 322, and one end of the scraper 31 is indirectly screwed onto the lead screw 322 through the scraper fixing block 34. The third belt 325 connects the third drive wheel 323 and the third driven wheel 324. It should be noted that the blade fixing block 34 is fixedly connected to the slider 332. One end of the elastic element in the tensioning assembly 35 is located on the blade 31, and the other end can be located on the blade fixing block 34. The blade 31 can also be rotatably connected to the blade fixing block 34.

[0120] In some embodiments, the third drive assembly 32 further includes a tensioning wheel 326, which is rotatably mounted on the post-processing body 1 and abuts against the third belt 325 to tension the third belt 325.

[0121] During operation, the aforementioned scraping mechanism 3 uses a third motor 321 to drive a lead screw 322 to rotate via a third drive wheel 323, a third driven wheel 324, and a third belt 325. The lead screw 322 then drives the scraper 31 to move horizontally. As the scraper 31 slowly moves horizontally, it scrapes off the printed parts from the printing platform 110, and the printed parts fall onto the carrier. The radius of the third driven wheel 324 is larger than that of the third drive wheel 323. Because the radius of the third driven wheel 324 is larger, its rotational speed is lower than that of the third drive wheel 323. This design increases the output torque. During the automatic scraping process, some printed parts may be firmly stuck, requiring the third driven wheel 324 to output a larger torque to drive the lead screw 322 to rotate, so that the scraper 31 can scrape off the firmly stuck printed parts. Furthermore, the slower rotational speed improves the stability of the transmission during the scraping process.

[0122] In other embodiments, the third drive assembly 32 may also be a hydraulic drive or a pneumatic drive, etc. The third drive assembly 32 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 machine body 1, and the piston rod of the piston cylinder is connected to the scraper 31. Thus, the piston rod of the piston cylinder drives the scraper 31 to translate during the extension and retraction process.

[0123] Referring to Figures 7 to 9, in this embodiment, the tensioning assembly 35 includes a compression spring, with its two ends connected to the blade fixing block 34 and the blade 31, respectively. Spring limiting grooves are provided on the opposing surfaces of the blade fixing block 34 and the blade 31. The two ends of the compression spring are inserted into the spring limiting grooves on the blade fixing block 34 and the blade 31, respectively. These two spring limiting grooves limit the two ends of the compression spring, preventing it from falling off.

[0124] In this embodiment, the two opposite sides of the scraper 31 along the width direction are a fixed side and a floating side, respectively. The fixed side is rotatably connected to the scraper fixing block 34, and the floating side is configured to be in close contact with the printing platform 110 under the elastic force of the elastic element. In the above structure, the scraper 31 and the printing platform 110 are in line contact during the scraping process (that is, only the edge of the floating side contacts the printing platform 110).

[0125] In some other embodiments, the scraper 31 has a scraping surface for abutting against the printing platform 110, the scraping surface being configured to be in full contact with the printing platform 110 under the elastic force of an elastic member. In the above embodiments, the scraper 31 and the printing platform 110 are in surface contact during the scraping process (i.e., the scraping surface is in full contact with the printing platform 110).

[0126] Optionally, the floating side edge of the scraper 31 is provided with a cutting edge 311; and / or, the scraping mechanism 3 further includes a connecting shaft 36, through which the fixed side of the scraper 31 is rotatably connected to the scraper fixing block 34. In this embodiment, the floating side edge of the scraper 31 is provided with a cutting edge 311, which can adhere tightly to the material-carrying surface of the printing platform 110 under the elastic force of the tensioning component 35 during the scraping process. Because the cutting edge 311 is relatively sharp, it can easily scrape off the material on the printing platform 110. The scraping mechanism 3 also includes a connecting shaft 36, which extends along the length of the scraper 31 and passes through the fixed side of the scraper 31 and the scraper fixing block 34, thereby allowing the floating side of the scraper 31 to rotate around the fixed side of the scraper 31.

[0127] With the above structure, when the printing platform 110 is sealed in the first opening 121, the printing platform 110 presses down on the floating side of the scraper 31. At this time, the tensioning component 35 exerts a reverse force on the scraper 31, causing the floating side of the scraper 31 to adhere tightly to the forming surface of the printing platform 110. Since the edge of the floating side of the scraper 31 is provided with a cutting edge 311, the cutting edge 311 can adhere tightly to the forming surface of the printing platform 110 under the elastic force of the tensioning component 35 during the scraping process. Because the cutting edge 311 is relatively sharp, it can easily scrape off the printed parts from the printing platform 110.

[0128] Referring to Figures 10 to 12, in some embodiments, the 3D printing post-processing device further includes a drying assembly disposed on the post-processing body 1. In this embodiment, the drying assembly includes a heater 8 disposed on the air supply channel 42, and a second air vent 152 is formed between the air supply channel 42 and the processing chamber 11. Air heated by the heater 8 is sent into the processing chamber 11 through the second air vent 152 to dry the printed parts with hot air. That is, the drying assembly consists of a heater 8 and an air supply assembly 4. The air supply assembly 4 is used to spray cleaning material onto the surface of the printed parts during the cleaning process, and to provide hot air to the processing chamber 11 during the drying process to dry the printed parts. Alternatively, the heater 8 may not be disposed on the air supply channel 42, and the air supply assembly 4 may be used to supply air to the processing chamber 11 for air drying; two sets of air supply assemblies 4 may also be disposed, one for cleaning and one for drying; in addition, the drying assembly may also be a direct electric heating, infrared heating, or other heating methods, without using the air supply assembly 4 for warm air heating. 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 this embodiment, the heater 8 can be a PTC (Positive Temperature Coefficient) heater 8. In the embodiment shown in Figure 12, 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.

[0129] In the above configuration, the air supply assembly 4 has two operating modes. The first operating mode of the air supply assembly 4 is the cleaning mode. Specifically, during the cleaning process, the airflow control component 41 (which can be a blower) sends air into the air supply channel 42. The air is ejected from the first vent along the air supply channel 42, and the impact force of the gas propels the cleaning fluid in the chamber onto the surface of the printed material to rinse it. In this operating mode, the heater 8 may or may not be activated. The second operating mode of the air supply assembly 4 is the drying mode. Specifically, after cleaning, the heater 8 is activated, and the blower sends air into the air supply channel 42. The air is heated by the heater 8 as it passes through it, and the heated air is then sent in through the second vent 152 to dry the printed material with hot air.

[0130] In some embodiments, the post-processing apparatus further includes a curing assembly. The curing assembly includes a curing lamp disposed on the side wall of the processing chamber 11 for photocuring the printed parts.

[0131] Referring to Figures 23 and 25, in some embodiments, the post-processing device further includes an external storage tank 10 disposed on the post-processing body 1. The external storage tank 10 is detachably connected to the post-processing body 1 and communicates with the processing chamber 11 via 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 11. The external storage tank 10 is also communicated with the processing chamber 11 via a recovery channel 7. The flow channel control module 101 further includes a recovery control module for controlling the external storage tank 10 to return cleaning materials from the processing chamber 11. 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 11 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 11 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 11, and a flow control component is provided on the flow channel between each cleaning agent tank and the treatment chamber 11.

[0132] Referring to Figures 23 and 25, in some embodiments, the external storage tank 10 of the post-processing device 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.

[0133] In some embodiments, 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, and the outlet of the feeding pump 63 is connected to the feeding pump outlet pipe 10111. The cleaning agent inlet 10111 is connected to the post-processing unit interface 1019. A flow control device is provided between the cleaning agent inlet interface and the feed pump inlet pipe 10110 to control the on / off connection between the cleaning agent inlet interface and the feed pump inlet pipe 10110. 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, and a return pump inlet pipe. The base 102 is equipped with an external storage tank recovery liquid outlet interface 1022 connected to the recovery tank 108, and a recovery liquid outlet interface 1018 connected to the external storage tank recovery liquid outlet interface 1022. A recovery liquid inlet interface is connected to the recovery channel 7. The inlet of the recovery pump is connected to the recovery liquid inlet interface via the recovery pump inlet pipe, and the outlet of the recovery pump is connected to the recovery liquid outlet interface 1018 via the recovery pump outlet pipe. A control device is provided between the recovery liquid inlet interface and the recovery pump inlet pipe for controlling the flow of the recovery liquid inlet interface and the recovery pump. A flow control device for controlling the connection and disconnection between the inlet and outlet pipes is provided between the recovered liquid outlet port 1018 and the return pump outlet pipe. Specifically, when the feed channel 62 and the recovery channel 7 are integrated, the post-processing body port 1019 and the recovered liquid inlet port are integrated. When the feed pump 63 and the return pump are integrated, the feed pump inlet pipe 10110 and the return pump inlet pipe are integrated, and the feed 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.

[0134] Referring to Figures 22 and 29, in some embodiments, 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 11, 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 11 by the feed pump 63. When the second cleaning agent needs to be injected into the treatment chamber 11, 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 11 by the feed pump 63. When the cleaning agent in the treatment chamber 11 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 11 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 device, enabling automatic injection of cleaning agent and automatic cleaning functions in the post-treatment device. Simultaneously, the first or second cleaning agent flowing out of the external storage tank 10 flows to the treatment chamber 11 through only one feed channel 62, and the used cleaning agent in the treatment chamber 11 also flows out to the recovery tank 108 of the external storage tank 10 through the feed channel 62. The overall structure is simple.

[0135] 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 device are installed, it is only necessary to connect the material supply channel connector 109 to the spray channel 145 through the material supply channel 62.

[0136] In this embodiment, the first cleaning agent and the second cleaning agent include, but are not limited to, ethanol, isopropanol, water, etc.

[0137] 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.

[0138] Referring to Figures 26 to 28, in some embodiments, the post-processing device 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 1. 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 1 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 11 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 11 will be sucked out through the discharge port 144 and transported to the recycling tank 108 of the external storage tank 10 by the action of the feed pump 63.

[0139] Referring to Figures 23 and 25, 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 device, 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 1017, 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.

[0140] Referring to FIG24, in some embodiments, the post-processing device 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 may also be disposed at other locations on the external storage tank 10.

[0141] Referring to Figure 29, a control method for a specific embodiment of the cleaning process flow channel of the post-processing apparatus provided in this application is described. This control method is based on the above-described post-processing apparatus. The control method includes:

[0142] S11. Prepare for cleaning by injecting either the first or second cleaning agent into the treatment chamber 11.

[0143] When the first cleaning agent needs to be injected into the treatment chamber 11, 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 11.

[0144] When it is necessary to inject the second cleaning agent into the treatment chamber 11, 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 11.

[0145] 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 and spray it out from the spray component 9 to form a cycle.

[0146] 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 11 through the discharge port 144 and transport it to the recycling bucket 108 of the external storage tank 10.

[0147] By employing the aforementioned flow control method for the post-processing unit's cleaning process, five flow control components and a feed pump 63 can control the flow of two cleaning agents and waste liquid between the external storage tank 10 and the post-processing unit 1 via a single feed channel 62. There is no need for manual control of the cleaning agent injection volume; the flow control components and feed pump 63 control the inflow of the cleaning agent. The automatic cleaning and drying functions of the post-processing unit 1 complete the cleaning and drying of the printed parts. The entire process saves cleaning agent and achieves high cleaning efficiency.

[0148] 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 device provided in this application. This control method is based on the above-described post-processing device. The control method includes:

[0149] S21. Prepare for cleaning. Open the first liquid flow control unit 1011 and the fourth liquid flow control unit 1014, close the third liquid flow control unit 1013 and the fifth liquid flow control unit 1015, and start the feed pump 63 to deliver the first cleaning agent in the external storage tank 10 to the treatment chamber 11.

[0150] 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 11 from the discharge port 144 and spray it out from the spray unit 9 to form a cycle.

[0151] 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 11 through the discharge port 144 and transport it to the recycling bucket 108 of the external storage tank 10.

[0152] 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.

[0153] In some embodiments, the post-processing apparatus further includes a controller electrically connected to an electrical component in the post-processing apparatus, the electrical component including at least one of the following: a motor, a solenoid valve, a blower, a fan, a heater, a lamp, etc.

[0154] In summary, the 3D printing post-processing device provided in this embodiment includes at least one of the following integrated on the post-processing body 1: a scraping mechanism 3, a bearing component 2, 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 photopolymer 3D printing post-processing workflow more convenient. It should be noted that the automatic setting can be omitted, allowing for multiple processes to be handled within a single main body space.

[0155] Another aspect of this application provides a 3D printing system. Referring to Figures 20 and 21, the 3D printing system includes a 3D printer 100, a conveying device 200, and a 3D printing post-processing device as described in any of the above embodiments.

[0156] The 3D printer 100 includes a printer body 120 and a printing platform 110 disposed on the printer body 120. A conveying device 200 is connected between the 3D printer 100 and the 3D printing post-processing device and is used to transfer the printing platform 110 between the printer body 120 and the 3D printing post-processing device. It should be noted that the conveying device 200 is the fourth drive component.

[0157] In one implementation, the 3D printing system provided in this embodiment employs the control method described in the foregoing embodiments.

[0158] It should be noted that the specific solutions of the 3D printing system provided in this embodiment using the apparatus and method of the foregoing embodiments are as described in the foregoing embodiments.

[0159] In some embodiments, the 3D printer 100, the conveying device 200, and the 3D printing post-processing device are integrated and all housed within the system body. Optionally, the 3D printer 100 and the 3D printing post-processing device are arranged side by side. Optionally, the 3D printer 100 and the 3D printing post-processing device are arranged side by side adjacent to each other.

[0160] The conveying device 200 includes a first conveying component and a second conveying component. The second conveying component is connected to the first conveying component in a transmission manner, and the first conveying component is connected to the printing platform 110. One of the second conveying component and the first conveying component is used to drive the printing platform 110 to move in the vertical direction, and the other is used to drive the printing platform 110 to move between the printer body 120 of the 3D printer 100 and the 3D printing post-processing device.

[0161] One of the first conveying component and the second conveying component drives the printing platform 110 to move vertically, while the other drives the printing platform 110 to move linearly or rotate horizontally.

[0162] In some embodiments, the conveying device 200 includes a horizontal conveying component 210 and a vertical conveying component 220. One end of the horizontal conveying component 210 is correspondingly disposed with the 3D printer 100, and the other end is correspondingly disposed with the post-processing device. The vertical conveying component 220 is disposed on the horizontal conveying component 210 and is driven to move horizontally by the horizontal conveying component 210. The printing platform 110 is disposed on the vertical conveying component 220 and is driven to move vertically by the vertical conveying component 220. Through the cooperation of the horizontal conveying component 210 and the vertical conveying component 220, the printing platform 110 can move to the printer body 120 and perform vertical movement in the printer body 120 to achieve printing, and it can also move to the post-processing device and perform vertical movement in the post-processing device to seal the printing platform 110 at the first opening 121 and then detach from the first opening 121. In this embodiment, the first conveying component is the vertical conveying component 220, and the second conveying component is the horizontal conveying component 210. Alternatively, the first conveying component can be the horizontal conveying component 210, and the second conveying component can be the vertical conveying component 220.

[0163] In some embodiments, the horizontal transmission assembly 210 includes a second mounting base, a horizontal transmission drive motor, and a horizontal transmission drive screw. The horizontal transmission drive motor is mounted on the second mounting base, and the horizontal transmission drive screw is horizontally mounted on the second mounting base and is connected to the horizontal transmission drive motor for transmission.

[0164] In some embodiments, the vertical transmission assembly 220 includes a first mounting base, a vertical transmission drive motor, and a vertical transmission drive screw. The first mounting base is screwed to the horizontal transmission drive screw. The vertical transmission drive motor is mounted on the first mounting base. The vertical transmission drive screw is vertically mounted on the first mounting base and is connected to the vertical transmission drive motor for transmission. The printing platform 110 is screwed to the vertical transmission drive screw.

[0165] Optionally, the second mounting base is slidably connected to the first mounting base, and a second guide component that engages with the first mounting base is provided between the second mounting base and the first mounting base. The printing platform 110 is slidably connected to the first mounting base, and a first guide component that engages with the first mounting base is provided between the printing platform 110 and the first mounting base. In some embodiments, both the first guide component and the second guide component may include a guide rail 331 and a groove that engage with the first mounting base.

[0166] In some embodiments, the conveying device 200 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 110. Then, the robotic arm of the multi-degree-of-freedom robot drives the printing platform 110 to rotate and move in space.

[0167] The 3D printing system also includes a control device, which is signal-connected to the 3D printer 100, the conveyor 200, and the 3D printing post-processing device. In some embodiments, the control device is signal-connected to the drive components, pumps, valves, heaters 8, sensors, and other control components of the 3D printer 100, the conveyor 200, and the 3D printing post-processing device 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 device can also be independently located in the 3D printer 100, the conveyor 200, and the 3D printing post-processing device, and signal-connected to their respective control components for independent control. Simultaneously, the control device is signal-connected to the liquid flow control components in the flow channel control module 101, the feed pump 63 of the feeding assembly 6, and the ejector pump, etc.

[0168] This application provides a control method for a specific embodiment of a 3D printing system, which is based on the aforementioned 3D printing system. The control method includes:

[0169] S31. Printing: shaping printing material into a printed part.

[0170] The control device controls the conveyor 200 to operate according to the printing program, so that the printing platform 110 moves up (or down) layer by layer in the printing material in the 3D printer 100 hopper, and synchronously controls the optomechanical system of the 3D printer 100 to expose layer by layer, forming the printing material into a printed part.

[0171] During the printing process, the control device can also control the 3D printer 100 to automatically inject printing material into the material box, the 3D printer 100 heating component to automatically heat the printing material in the material box, and the 3D printer 100 scraping component to automatically stir the printing material in the material box.

[0172] S32, transfer: transport the printing platform 110 and the printed part to the 3D printing post-processing device.

[0173] After the 3D printer 100 finishes printing, the control device controls the conveyor 200 to transport the printing platform 110 to the 3D printing post-processing unit and seal the printing platform 110 over the first opening 121, thus closing the processing chamber 11. In some embodiments, the control device controls the conveyor 200 to move the printing platform 110 horizontally to the post-processing unit, above the first opening 121, and then controls the conveyor 200 to move the printing platform 110 vertically to seal the printing platform 110 over the first opening 121.

[0174] S33. Post-processing: Perform post-processing procedures on the printed parts.

[0175] The post-processing steps include scraping, cleaning, drying, and post-curing. Specifically:

[0176] Part removal process: The control device controls the scraper 31 to move along the forming surface of the printing platform 110, separating the printed part from the printing platform 110, and the printed part falls onto the carrier 21 of the carrier component.

[0177] Cleaning process: The control device controls the feeding component 6 to feed cleaning material into the material holding section, and controls the air supply component 4 to supply gas. The gas is sprayed onto the cleaning material through the spraying component 9, and the cleaning material is finely sprayed onto the surface of the printed parts. The control device simultaneously controls the carrier component 21 to rotate, and the carrier component 21 drives the printed parts to rotate, so as to achieve comprehensive cleaning of the printed parts, improve cleaning efficiency and ensure cleaning effect. After cleaning, the control device controls the recycling component to recycle the cleaning material in the processing chamber 11.

[0178] Drying process: The control device controls the gas supply component 4 to send in gas and controls the heater 8 to start heating the gas. The control device synchronously controls the carrier 21 to rotate, and the carrier 21 drives the printed parts to rotate. The heated gas flows into the processing chamber 11 to achieve rapid drying of the printed parts.

[0179] In the curing process, a curing lamp is used to photocur the printed parts to obtain the finished product after post-processing. The control device controls the curing lamp to emit light to illuminate the printed parts, and the control device simultaneously controls the rotation of the carrier 21. The carrier 21 drives the printed parts to rotate, thereby realizing the full photocuring post-processing of the printed parts.

[0180] 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.

[0181] The working process of a specific embodiment of the 3D printing system provided in this application is as follows:

[0182] Referring to Figures 20 and 21, after 3D printing is completed, the printed part is attached to the printing platform 110. The conveying device 200 moves the printing platform 110 to the first opening 121 that covers the post-processing unit 1. Specifically, the conveying device 200 drives the printing platform 110 to move horizontally, moving the printing platform 110 from the 3D printer 100 to the post-processing unit, generally above the first opening, usually limited by a limit switch or mechanical limit structure. The conveying device 200 drives the printing platform 110... The device moves downwards, causing the printing platform 110 to cover the first opening 121, typically at a position defined by a limit switch or mechanical limit structure. At this time, the circumferential surface of the printing platform 110 and the inner wall surface of the first opening 121 are sealed together, ensuring that no cleaning material overflows from the first opening 121 during subsequent cleaning and drying processes. Meanwhile, as shown in Figures 2 and 8, the working end of the scraper 31 is tightly fitted to the forming surface (i.e., the side carrying the printed part) of the printing platform 110 under the reverse force of the tensioning component 35.

[0183] Before the scraping mechanism 3 scrapes the material, the control device controls the first drive assembly 5 to drive the two frame members 212 to rotate relative to each other, so that the second opening 211 of the carrier member 21 opens and faces the first opening 121 (as shown in Figure 2). Then, the control device controls the third drive assembly 32 to drive the scraper 31 to move along the printing platform 110 to scrape off the printed material on the printing platform 110. The fallen printed material falls into the carrier member 21 through the second opening 211. Alternatively, if the second opening 211 of the carrier member 21 is already in the state shown in Figure 2 before the scraping mechanism 3 scrapes the material, the relative rotation of the two frame members 212 can be stopped, and the scraper 31 can be directly controlled to scrape the material. It should be noted that the size of the second opening 211 can be controlled by the relative rotation of the two frame members 212 to adapt to the size of the printed material, so that the printed material can fall slowly into the carrier member 21.

[0184] Next, the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate relative to each other, thereby closing the second opening 211 of the bearing component 21 (as shown in Figure 14). Then, the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate synchronously. Simultaneously, the control device controls the second control valve and the feed pump 63 on the feed channel 62 to open, feeding cleaning material into the processing chamber 11 through the feed channel 62 and the feed pump 63. The cleaning material falls to the holding section at the bottom of the processing chamber 11 under gravity. After the feed channel 62 supplies the processing chamber 11 with a preset amount of cleaning material, the control device controls... The second control valve and the feed pump 63 on the feed channel 62 are closed, and then the first control valve and the airflow control element 41 (e.g., a blower) on the air supply channel 42 are opened. Gas is injected into the processing chamber 11 through the air inlet 142 via the airflow control element 41 and the air supply channel 42. 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 device controls the first control valve and the airflow control element 41 on the air supply channel 42 to close, and then controls the third control valve on the recovery channel 7 to open. The cleaning material at the bottom of the processing chamber 11 flows back to the internal storage tank 61 through the recovery channel 7.

[0185] After cleaning, the control device controls the first control valve, airflow control element 41 and heater 8 on the air supply channel 42 to open. The airflow control element 41 sends air to the heater 8 for heating. Hot air is sprayed from the air inlet 142 into the processing chamber 11 to dry the clean printed parts. At this time, the carrier 21 will continue to rotate to make the printed parts dry more thoroughly.

[0186] During the cleaning and drying process of the printed parts, the ventilation channel 18 at the top of the post-processing unit 1 ensures the entry and exit of air in the processing chamber 11.

[0187] After drying is completed, the control device controls the first drive assembly 5 to drive the two frame components 212 to rotate relative to each other, so that the second opening 211 of the carrier 21 opens 180° (as shown in Figure 16). Then, the opening and closing door 16 is opened, and the mounting bracket 24 together with the carrier 21 on it is taken out. At the same time, the conveying device 200 puts the printing platform 110 back on the printer body 120, waiting for the next printing operation.

[0188] 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. The 3D printing system also possesses at least all the technical effects of the aforementioned 3D printing post-processing module, which will not be elaborated upon here.

[0189] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A support component (2) for mounting on a post-processing unit (1), wherein a first drive component (5) is mounted on the post-processing unit (1), wherein, The carrier assembly includes a carrier (21) disposed on the post-processing body (1) for carrying the printed parts. The carrier (21) is rotatably connected to the post-processing body (1), and the first drive assembly (5) is used to drive the carrier (21) to rotate. The carrier (21) has a second opening (211) that can be opened and closed.

2. The load-bearing component according to claim 1, characterized in that, The support member (21) includes two frame members (212), which are a first frame member having the second opening (211) and a second frame member surrounding the second opening (211), respectively. The two frame members (212) are configured to adjust the opening and closing of the second opening (211) by relative rotation and / or movement of the two.

3. The load-bearing component according to claim 2, characterized in that, The carrier (21) is detachably disposed on the post-processing body (1). When the carrier assembly (2) is placed in the working position of the post-processing body (1), the carrier (21) is rotatably connected to the post-processing body (1) and is in transmission cooperation with the first drive assembly (5).

4. The load-bearing component according to claim 2 or 3, characterized in that, The first drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing unit (1), and the bearing assembly (2) includes a second transmission connector (22) disposed on the bearing assembly (21). The first transmission connector (51) is provided with a transmission groove (23), and the second transmission connector (22) is provided with a transmission protrusion (52) that is inserted into the transmission groove (23). Alternatively, the first drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing unit (1), and the bearing assembly (2) includes a second transmission connector (22) disposed on the bearing assembly (21). The second transmission connector (22) is provided with a transmission groove (23), and the first transmission connector (51) is provided with a transmission protrusion (52) that is inserted into the transmission groove (23).

5. The load-bearing component according to claim 4, characterized in that, The support assembly (2) includes a mounting frame (24), and the support member (21) is rotatably connected to the mounting frame (24) via the second transmission connector (22). The support assembly (2) is detachably mounted on the post-processing unit (1) via the mounting frame (24); or, the support assembly (2) includes a mounting frame (24), and the support member (21) is rotatably connected to the mounting frame (24) via the second transmission connector (22). The mounting frame (24) is provided with the transmission groove of the first transmission connector (51). (23) Insert-fit plug-in, wherein the carrier component (2) is detachably mounted on the post-processing body (1) via the mounting bracket (24); or, the carrier component (2) includes the mounting bracket (24), wherein the carrier member (21) is rotatably connected to the mounting bracket (24) via the second transmission connector (22), wherein the mounting bracket (24) is provided with a slot that communicates through the transmission groove (23) of the second transmission connector (22), and the carrier component (2) is detachably mounted on the post-processing body (1) via the mounting bracket (24).

6. The load-bearing component according to any one of claims 2 to 5, characterized in that, The support member (21) has a hollow structure.

7. The load-bearing component according to any one of claims 2 to 6, characterized in that, The two frame members (212) are configured to adjust the opening and closing of the second opening (211) by rotating relative to each other about the rotation center line of the carrier (21).

8. The load-bearing component according to claim 7, characterized in that, The first drive assembly (5) is provided in two parts. The first frame component and the second frame component are respectively provided with a second transmission connector (22). The first frame component is connected to one of the first drive assemblies (5) through the second transmission connector (22), and the second frame component is connected to the other first drive assembly (5) through the second transmission connector (22).

9. A 3D printing post-processing apparatus, comprising a post-processing body (1), a first drive assembly (5) disposed on the post-processing body (1), and a support assembly as described in any one of claims 1-8 disposed on the post-processing body (1).

10. The 3D printing post-processing apparatus according to claim 9 further includes a second driving component disposed on the post-processing body (1), the second driving component being used to drive the two frame members (212) to rotate relative to each other and / or move to adjust the opening and closing of the second opening (211).

11. The 3D printing post-processing apparatus according to claim 10, characterized in that, The first driving component (5) and the second driving component are the same driving component.

12. The 3D printing post-processing apparatus according to any one of claims 9 to 11, characterized in that, The first drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing body (1), the first transmission connector (51) having a transmission groove (23), and the bearing assembly (2) includes a second transmission connector (22) disposed on the bearing assembly (21), the second transmission connector (22) having a transmission protrusion (52) that inserts into the transmission groove (23); or, the first drive assembly (5) includes a first transmission connector (51) rotatably connected to the post-processing body (1), the first transmission connector (51) having a transmission protrusion (52), and the bearing assembly (2) includes a second transmission connector (22) disposed on the bearing assembly (21), the second transmission connector (22) having a transmission groove (23) that inserts into the transmission groove (23).

13. The 3D printing post-processing apparatus according to claim 12, characterized in that, The first transmission connector (51) is provided with a transmission groove (23), and the post-processing body (1) is provided with a slot that communicates through the transmission groove (23) of the first transmission connector (51); or, the second transmission connector (22) is provided with a transmission groove (23), and the post-processing body (1) is provided with a plug that is inserted and fitted into the transmission groove (23) of the second transmission connector (22).

14. The 3D printing post-processing apparatus according to any one of claims 9 to 13, characterized in that, The first drive component (5) has two parts; Alternatively, the carrier (21) can be detachably disposed on the post-processing body (1). When the carrier assembly (2) is placed in the working position of the post-processing body (1), the carrier (21) is rotatably connected to the post-processing body (1) and in transmission cooperation with the first drive assembly (5).

15. The 3D printing post-processing apparatus according to any one of claims 9 to 14, characterized in that, The first 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 (1), 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 (212) in a transmission connection. The first belt (56) is connected between the first drive wheel (54) and the first driven wheel (55).

16. The 3D printing post-processing apparatus according to any one of claims 9 to 15, characterized in that, The post-processing unit (1) is provided with a processing chamber (11), and the bearing assembly (2) is located in the processing chamber (11); the processing chamber (11) has a third opening in the insertion direction of the bearing assembly (2), and the post-processing unit (1) is provided with an opening and closing door (16) that covers the third opening.

17. A method for controlling a carrier component, comprising: The first drive assembly (5) drives the two frame components (212) to rotate relative to each other, so that the second opening (211) of the support member (21) opens; Control the first drive assembly (5) to drive the two frame members (212) to rotate relative to each other, so that the second opening (211) of the carrier (21) is closed; The first drive component (5) is controlled to drive the two frame components (212) to rotate synchronously.

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