A 3D printing post-processing device and a 3D printing system

Abstract

The utility model relates to 3D printing technical field especially relates to a kind of 3D printing post-processing device and 3D printing system.The 3D printing post-processing device includes post-processing machine body, processing chamber being set to post-processing machine body, is set to post-processing machine body and is used to carry the load component of printing piece and is set to post-processing machine body and is used to apply cleaning material to the cleaning component of printing piece surface, cleaning component and load component are correspondingly set;Cleaning component includes the material spraying component for spraying cleaning material to the surface of printing piece.Above-mentioned 3D printing post-processing device in working process, material spraying component can use the impact force of gas and spray cleaning material to the surface of printing piece, so on the one hand, it can improve the washing strength of printing piece, to improve cleaning effect, on the other hand, it can avoid that cleaning material gathers in the bottom of processing chamber under the action of gravity, make cleaning material repeatedly washes printing piece under the jetting force of material spraying component, to reduce the dosage of cleaning material.

Description

Technical Field

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

[0003] To reduce manual labor, cleaning services have emerged on the market for cleaning printed materials after printing. Existing cleaning services typically involve applying cleaning materials (such as water or cleaning fluid) to the surface of the printed materials to rinse them. This method not only has poor cleaning results but also consumes a large amount of cleaning materials during the rinsing process, leading to excessive material usage. Utility Model Content

[0004] The purpose of this invention is to provide a 3D printing post-processing device and a 3D printing system to solve the technical problems of poor cleaning effect and large amount of cleaning material used in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A 3D printing post-processing device includes a post-processing body, a processing chamber disposed in the post-processing body, a support component disposed in the post-processing body for carrying the printed part, and a cleaning component disposed in the post-processing body for applying cleaning material to the surface of the printed part, wherein the cleaning component is disposed corresponding to the support component.

[0006] In an optional embodiment, the cleaning assembly includes an atomizing assembly for spraying cleaning material onto the surface of the print.

[0007] In an optional embodiment, the cleaning assembly includes a material holding section for holding cleaning materials.

[0008] In an optional embodiment, the spraying assembly includes a spraying element disposed on the material holding part and facing the bearing assembly, and an air supply assembly communicating with the spraying element. The air supply assembly includes an air supply channel and an airflow control element. The air supply channel communicates the processing chamber with the outside of the post-processing unit, and the airflow control element is disposed on the air supply channel. Alternatively, the spraying assembly includes a spraying element disposed in the material holding section and facing the bearing assembly. The spraying element is connected to a spraying source, and the spraying source pressurizes cleaning material to the spraying element through a spraying pump. The spraying source includes the material holding section, which has a discharge port. The discharge port is connected to the spraying element through a spraying channel. A spraying circuit is formed between the material holding section, the discharge port, and the spraying element. The spraying pump is disposed in the spraying channel.

[0009] In an optional embodiment, a first material holding area is formed at the bottom of the processing chamber, and the material holding part includes the first material holding area, wherein the first material holding area is provided with the spraying element.

[0010] In an optional embodiment, the atomizing component is connected to the air supply assembly, a first vent is formed between the air supply channel and the processing chamber, the atomizing component is a rubber component sealed in the first vent, and the atomizing component is provided with a venting gap. or; It also includes a drying assembly disposed on the post-processing unit, wherein the spraying element is connected to the air supply assembly, and the drying assembly includes a heater disposed on the air supply channel.

[0011] In an optional embodiment, the first material holding area is a recessed area formed by the outward indentation of the bottom surface of the processing chamber.

[0012] In an optional embodiment, a feeding assembly is further included, which is disposed on the post-processing body for feeding cleaning materials into the processing chamber, and the feeding assembly is disposed corresponding to the cleaning assembly.

[0013] In an optional embodiment, the feeding assembly includes a feeding channel that connects the processing chamber and the feeding source. The connection between the feeding channel and the processing chamber is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning material to the processing chamber through a feeding pump. The material supply source includes an internal storage tank and / or an external storage tank, and the external storage tank is detachably connected to the post-processing unit.

[0014] In an optional embodiment, a recycling component is further provided in the post-processing body for recycling the cleaning material in the processing chamber. The recycling component includes a recycling port corresponding to the material holding part, and the recycling component also includes a recycling channel connected to the recycling port. The recycling channel connects the material supply source and the material holding part.

[0015] This utility model provides a 3D printing system, including the above-mentioned 3D printing post-processing device.

[0016] The beneficial effects of this utility model are: The 3D printing post-processing device provided by this utility model includes a post-processing body, a processing chamber disposed in the post-processing body, a carrier component disposed in the post-processing body for carrying the printed parts, and a cleaning component disposed in the post-processing body for applying cleaning material to the surface of the printed parts. The cleaning component and the carrier component are disposed correspondingly.

[0017] The cleaning components and the carrier components are set up in a corresponding manner, which makes it easy to apply the cleaning material to the surface of the printed parts, improve the cleaning effect, and reduce the amount of cleaning material used. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in 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 utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural diagram of the 3D printing post-processing device and printing platform provided in the embodiments of this utility model; Figure 2 A longitudinal cross-sectional schematic diagram of the 3D printing post-processing device and printing platform provided in this embodiment of the utility model; Figure 3 A three-dimensional structural schematic diagram of the spraying component provided in an embodiment of this utility model; Figure 4 A three-dimensional structural schematic diagram of the 3D printing post-processing device provided in this embodiment of the utility model; Figure 5 Exploded view of the 3D printing post-processing device provided in the embodiment of this utility model; Figure 6 A schematic diagram of the internal structure of the processing chamber provided in an embodiment of this utility model; Figure 7 Exploded view of the support component and the first drive component provided in the embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the bearing component and the first driving component provided in the embodiment of the present utility model when the second opening is closed; Figure 9 A schematic diagram of the structure of the support component and the first drive component provided in the embodiment of this utility model when the second opening is open; Figure 10 A schematic diagram showing the state of the carrier component when it is placed into or removed from the post-processing body according to an embodiment of this utility model; Figure 11 for Figure 10 Enlarged view at point A; Figure 12 for Figure 10 Enlarged view at point B; Figure 13 This is a schematic diagram of the structure of the guide groove and transmission groove in the cross state provided in the embodiment of the present utility model; Figure 14 A schematic diagram of the external storage box structure provided for an embodiment of this utility model; Figure 15 Exploded view of the external storage box provided for an embodiment of this utility model; Figure 16 Another perspective view of the internal structure of the processing chamber provided in this embodiment of the utility model; Figure 17 A top view of the internal structure of the processing chamber provided in an embodiment of this utility model; Figure 18 A schematic diagram of the external structure of the post-processing unit provided in an embodiment of this utility model.

[0020] icon: 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-Discharge port; 145-Spraying channel; 146-Spraying 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 groove; 242-First mounting hole; 243-Push-pull handle; 4-Gas supply components; 41-Airflow control components; 42-Gas supply channels; 5-First drive assembly; 51-First transmission connector; 52-Transmission protrusion; 53-First motor; 54-First drive pulley; 55-First driven pulley; 56-First belt; 6-Feeding assembly; 61-Internal storage bin; 62-Feeding channel; 63-Feeding pump; 7-Recycling channel; 8-Heater; 9-Blow-out parts; 110 - Printing Platform; 10-External storage bin; 101-Flow channel control module; 102-Base; 103-Box body; 104-Box cover; 109-Feeding channel connector. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that in the description of this utility model, 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 utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that in the description of this utility model, 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 utility model according to the specific circumstances.

[0024] This application provides a 3D printing post-processing device, referring to... Figure 1 and Figure 2 The 3D printing post-processing device includes a post-processing body 1, a processing chamber 11 disposed on the post-processing body 1, a carrier component 2 disposed on the post-processing body 1 for carrying the printed parts, and a cleaning component disposed on the post-processing body 1 for applying cleaning material to the surface of the printed parts. The cleaning component is disposed corresponding to the carrier component 2. The cleaning component includes a spraying component for spraying cleaning material onto the surface of the printed parts.

[0025] During operation, the above-mentioned 3D printing post-processing device uses the impact force of gas to spray cleaning material onto the surface of the printed part. This can improve the rinsing force on the printed part and thus enhance the cleaning effect. On the other hand, it can prevent the cleaning material from accumulating at the bottom of the processing chamber 11 under the action of gravity. The cleaning material is repeatedly rinsed on the printed part under the jetting force of the spraying component, thereby reducing the amount of cleaning material used.

[0026] In some embodiments, the processing chamber 11 has a first opening 121 through which the printed part on the printing platform 110 enters the processing chamber 11.

[0027] 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. The top of the processing chamber 11 (specifically, on the top wall 12) has a first opening 121 for inserting the printing platform 110. In the above structure, since the printed parts complete the post-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.

[0028] 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 covering the third opening are provided on the side wall (specifically the 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 printout is processed, the operator can pull the door handle 161 to open the door 16, allowing the printout 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 printout can be accessed through the first opening 121.

[0029] In some embodiments, the first opening 121 cooperates with the printing platform 110 so that the printing platform 110 on the 3D printer 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.

[0030] 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 switch can be achieved not only by the limit switch, but also by setting a mechanical limit structure.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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 room.

[0035] 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.

[0036] 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.

[0037] Reference Figure 6 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, 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. As a preferred embodiment, 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. Of course, only the second material holding area can be set and the first material holding area can be omitted.

[0038] Continue to refer to Figure 4 and Figure 5In 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. 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.

[0039] 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. (Refer to...) Figure 3 The spraying component 9 is preferably a rubber component sealed in the first vent. The spraying component 9 is provided with a venting gap. The venting gap is designed so that the gas sprayed through the venting gap of the spraying component 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 spraying state. On the other hand, it prevents the cleaning material in the treatment chamber 11 from flowing back to the air supply channel 42.

[0040] 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.

[0041] Continue to refer to Figure 2 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 chamber. In this embodiment, the ventilation channel 18 is a baffle-type ventilation channel (the ventilation channel 18 has a certain length and is bent), ensuring airflow within the processing chamber 11 while meeting its airtightness requirements, and preventing the cleaning material from being trapped and flowing back into the processing chamber without being carried out by the gas. Of course, the ventilation channel 18 can be simply a third ventilation port, or it can include a third ventilation port and a pressure relief valve located at the ventilation port; the specific method is not limited to these.

[0042] Reference Figure 4The 3D printing post-processing device also 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 is connected to 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 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. 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.

[0043] 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, with cleaning material fed from the internal storage tank 61 into the holding part, and the cleaning of the printed parts achieved through the cleaning material in the holding part. (Refer to...) Figure 12 In this embodiment, a feeding port 151 is provided on the upper side of the processing chamber 11 (specifically, the upper side of the rear wall 15). The feeding channel 62 is connected to the processing chamber 11 through the feeding port 151, and the feeding port is the connection point 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 through the feeding port 151, and the cleaning material falls from the feeding port 151 into the material holding part located at the bottom of the processing chamber 11.

[0044] Continue to refer to Figure 2In some embodiments, the 3D printing post-processing device 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. As 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 to 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.

[0045] In some embodiments, such as Figures 14-18 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 set with the cleaning assembly. The feeding source supplies cleaning material to the processing chamber 11 through the 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 integrated. The feeding source includes an internal storage tank 61 and / or an external storage tank 10, and the external storage tank 10 is detachably connected to the post-processing body 1.

[0046] In this embodiment, the base 102 is also provided with a material supply channel connector 109. When the external storage box 10 is installed, it is only necessary to connect the material supply channel connector 109 to the spray channel 145 through the material supply channel 62.

[0047] In some embodiments, the external storage box 10 includes a base 102, a box body 103 disposed on the base 102, and a box cover 104 covering the box body 103. The flow channel control module 101 is disposed on the base 102. The overall structure is simple, compact, occupies little space, and has a fast overall cleaning time and high cleaning efficiency.

[0048] In some embodiments, the carrier assembly 2 includes a carrier 21 for carrying the printed parts, and the carrier 21 is rotatably connected to the post-processing unit 1. During post-processing, the rotation of the carrier 21 causes the printed parts to rotate, enabling the printer to perform post-processing comprehensively, fully, and evenly. Of course, the carrier 21 can also be fixedly installed to the post-processing unit 1, and the carrier 21 cannot rotate relative to the post-processing unit, thus providing the function of carrying the printed parts.

[0049] 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. Of course, the rotation center line of the carrier 21 is not limited to the above settings; it can be horizontal, vertical, or in other orientations.

[0050] 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. Alternatively, the carrier assembly 2 can be fixedly mounted to the post-processing unit 1 to provide a support function for the printed material.

[0051] Continue to refer to Figure 1 and Figure 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.

[0052] 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.

[0053] Reference Figures 7 to 12In 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 to be easily removed from the post-processing unit 1 and 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.

[0054] 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.

[0055] 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. Of course, the absence of both slots and plugs does not affect the installation of the carrier assembly 2 on the post-processing unit. 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.

[0056] In some embodiments, the first drive assembly 5 includes a first transmission connector 51 rotatably connected to the post-processing unit, and the carrier 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 inserts into the transmission groove 23. The insertion and engagement of the transmission groove 23 and the transmission protrusion 52 enables the carrier 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 drives the rotation of the second transmission connector 22, thereby enabling the carrier assembly 21 to rotate.

[0057] 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.

[0058] 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 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 only one of the slot and the plug-in may be provided, or both may be provided. 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. Of course, 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.

[0059] 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 through-connection (e.g. Figure 11As shown in the figure, the slot and the transmission groove 23 can also be connected in a curved manner. The direction of the connection between the slot and the transmission groove 23 is not limited to this. As long as the plug and / or the transmission protrusion 52 are inserted into the slot and the transmission groove 23 along the direction of the connection between the slot and the transmission groove 23, it is sufficient. 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. It 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 direction of the connection between 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.

[0060] Continue to refer to Figure 11 and Figure 12 In some embodiments, the carrier component 2 and the post-processing body 1 are provided with a guide groove 241 extending in the insertion direction (i.e., the slot described above) and the other is provided with a guide protrusion 131 extending in the insertion direction (i.e., the plug described above). The guide protrusion 131 can be slidably disposed in the guide groove 241 in the insertion direction.

[0061] 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.

[0062] 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 be able to cross or be collinear during the rotation of the bearing component 2. 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.

[0063] 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 rib 131 on the same side, are all collinear, the extending direction of the transmission protrusion 52 and the extending 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 rib 131 on the same side, are all intersecting (e.g. Figure 13 As shown), the extension direction of the transmission protrusion 52 and the extension direction of the transmission groove 23 both intersect the insertion direction.

[0064] Optionally, the carrier 21 can be a cylindrical body, a spherical body, a clamp, a bracket, a tray, a support platform, or a frame. Of course, the structure of the carrier 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.

[0065] 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 (i.e., 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 (i.e., 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 (i.e., 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 drive assembly that adjusts the opening and closing of the second opening 211 by driving the relative movement of the two frame members 212, and the drive assembly that drives the rotation and / or movement of the two frame members 212 to align the second opening 211 with the first opening 121, can be the same drive assembly or different drive assemblies.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] In this embodiment, two first drive 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 drive components 5 via the second transmission connector 22, and the second frame component is connected to the other first drive component 5 via the second transmission connector 22, allowing the two frame components 212 to rotate synchronously or relative to each other. The first drive component 5 drives 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 (when the two frame components 212 rotate relative to each other to...). Figure 8 In the indicated state, the second opening 211 is open, and the first drive assembly 5 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 corresponds to the first opening 121 (i.e., corresponds to the printing platform 110 that covers the first opening 121). The printed part falls from the second opening 211 into the first frame member. The first drive assembly 5 drives the two frame members 212 to rotate relative to each other around the rotation center line of the carrier member 21, so that the second opening 211 is closed (when the two frame members 212 rotate relative to each other to...). Figure 9 In the indicated state (with the second opening 211 closed), the printed piece is surrounded between the first frame member and the second frame member (i.e., the carrier member 21). The carrier member 21 is rotated around its rotation center line by the first drive assembly 5 (i.e., the two frame members 212 are synchronously rotated around the rotation center line of the carrier member 21 by the first drive assembly 5), thus achieving print rotation. It should be noted that the drive assembly that adjusts the opening and closing of the second opening 211 by relative rotation of the two frame members 212 around the rotation center line of the carrier member 21, and the drive assembly that synchronously rotates the two frame members 212 around the rotation center line of the carrier member 21, can be the same drive assembly or different drive assemblies for the second opening 211 and the first opening 121. It should also be noted that there are two ways to make the two frame members 212 rotate relative to each other: one is that one frame member 212 remains stationary while the other rotates; the other is that the two frame members 212 rotate simultaneously in opposite directions or asynchronously. The first method is preferred for controlling the opening and closing of the second opening 211.

[0070] In this embodiment, both frame members 212 are semi-cylindrical tubes, nested inside each other and capable of rotating around the rotation center line of the support member 21. Preferably, the rotation center line of the support member 21 is the axis of the semi-cylindrical tube. In some embodiments, only 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 frame member 212 can approach or move away from the opening of the other frame member 212. When the cover plate 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 frame member 212 moves away from the opening of the other frame member 212, the second opening 211 of the support member opens.

[0071] Continue to refer to Figure 7 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 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 via a first transmission connector 51. The first belt 56 connects the first drive wheel 54 and the first driven wheel 55.

[0072] 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.

[0073] In other embodiments, the opening and closing of the second opening 211 can also be controlled by manually rotating the two frame components 212.

[0074] 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.

[0075] 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 any driving force from the driving assembly, the second opening 211 is open and corresponds to the first opening 121 (the second opening 211 faces the first opening 121). Of course, the support assembly 2 can also 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).

[0076] In some embodiments, the processing chamber 11 has a third opening in the insertion direction of the support assembly 2, and the post-processing unit 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.

[0077] 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.

[0078] When the second opening 211 is in the 180° open state (i.e.) Figure 10(As shown in the diagram), the extension directions of the transmission protrusion 52 and the transmission groove 23 are parallel to the insertion direction, allowing for the installation or removal of the carrier assembly 2. When the second opening 211 is closed or open at other angles, the carrier assembly 2 can only rotate around its rotation center line, resulting in more accurate installation and more efficient operation. Furthermore, when the second opening 211 is open at 180°, the two nested frame members 212 are fully engaged, minimizing the overall height of the carrier assembly 2, thus facilitating the insertion or removal of the carrier member 21 from the post-processing unit 1.

[0079] Reference Figure 4 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 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 during the drying process to dry the printed parts. Of course, 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 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 is preferably a PTC heater. Figure 12 In the embodiment shown, 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.

[0080] 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 sprays the cleaning fluid in the chamber onto the surface of the printed parts to rinse them. In this operating mode, the heater 8 can be operated or not. 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 sent in through the second vent 152 to dry the printed parts with hot air.

[0081] Another embodiment of this application provides a 3D printing system, which includes a 3D printer, a conveying device, and a 3D printing post-processing device as described in any of the above embodiments, wherein: The 3D printer includes a printer body and a printing platform 110 disposed on the printer body. A conveying device is connected between the 3D printer and the 3D printing post-processing device and is used to transfer the printing platform 110 between the printer body and the 3D printing post-processing device. It should be noted that the conveying device is the fourth drive component.

[0082] In some embodiments, the 3D printer, conveying device, and 3D printing post-processing device are integrated and all housed within the system body. The system body is the printer body and the 3D printing post-processing device body, with the conveying device located within the system body. Preferably, the 3D printer and the 3D printing post-processing device are arranged side-by-side. Even more preferably, the 3D printer and the 3D printing post-processing device are arranged side-by-side adjacent to each other.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 utility model.

Claims

1. A 3D printing post-processing device, characterized in that, It includes a post-processing body (1), a processing chamber (11) disposed in the post-processing body (1), a carrier component (2) disposed in the post-processing body (1) for carrying the printed parts, and a cleaning component disposed in the post-processing body (1) for applying cleaning material to the surface of the printed parts, wherein the cleaning component is disposed corresponding to the carrier component (2).

2. The 3D printing post-processing apparatus according to claim 1, characterized in that, The cleaning assembly includes a spraying assembly for spraying cleaning material onto the surface of the printed part.

3. The 3D printing post-processing apparatus according to claim 2, characterized in that, The cleaning assembly includes a material holding section for holding the cleaning material.

4. The 3D printing post-processing apparatus according to claim 3, characterized in that, The spraying assembly includes a spraying element (9) disposed in the material holding part and facing the bearing assembly (2) and an air supply assembly (4) communicating with the spraying element (9). The air supply assembly (4) includes an air supply channel (42) and an airflow control element (41). The air supply channel (42) communicates the processing chamber (11) with the outside of the post-processing body (1). The airflow control element (41) is disposed in the air supply channel (42). Alternatively, the spraying assembly includes a spraying element (9) disposed in the material holding part 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 the material holding part, which is provided with a discharge port (144). The discharge port (144) is connected to the spraying element (9) through a spraying channel (145). A spraying circuit is formed between the material holding part, the discharge port (144), and the spraying element (9). The spraying pump (146) is disposed in the spraying channel (145).

5. The 3D printing post-processing apparatus according to claim 4, characterized in that, The bottom of the processing chamber (11) forms a first material holding area, and the material holding part includes the first material holding area, which is provided with the spraying component (9).

6. The 3D printing post-processing apparatus according to claim 4, characterized in that, The spraying component (9) is connected to the air supply component (4), and a first air vent is formed between the air supply channel (42) and the processing chamber (11). The spraying component (9) is a rubber component sealed in the first air vent, and the spraying component (9) is provided with an air vent. or; It also includes a drying assembly disposed on the post-processing body (1), wherein the spraying element (9) is connected to the air supply assembly (4), and the drying assembly includes a heater (8) disposed on the air supply channel (42).

7. The 3D printing post-processing apparatus according to claim 5, characterized in that, The first material holding area is a recessed area (143) formed by the outward indentation of the bottom surface of the processing chamber (11).

8. The 3D printing post-processing apparatus according to any one of claims 4 to 7, characterized in that, It also includes a feeding assembly (6) disposed in the post-processing body (1) for feeding cleaning materials into the processing chamber (11), the feeding assembly (6) being disposed corresponding to the cleaning assembly.

9. The 3D printing post-processing apparatus according to claim 8, characterized in that, The feeding assembly (6) includes a feeding channel (62), which connects the processing chamber (11) and the feeding source. The connection between the feeding channel (62) and the processing chamber (11) is correspondingly provided with the cleaning assembly. The feeding source supplies cleaning materials to the processing chamber (11) through a feeding pump (63). The material supply source includes an internal storage tank (61) and / or an external storage tank (10), and the external storage tank (10) is detachably connected to the post-processing body (1).

10. The 3D printing post-processing apparatus according to claim 9, characterized in that, It also includes a recycling component disposed in the post-processing body (1) for recycling the cleaning material in the processing chamber (11). The recycling component includes a recycling port (141) disposed corresponding to the material holding part. The recycling component also includes a recycling channel (7) connected to the recycling port (141). The recycling channel (7) connects the material supply source and the material holding part.

11. A 3D printing system, characterized in that, Includes a 3D printer, a conveying device, and a 3D printing post-processing device as described in any one of claims 1 to 10, wherein: The 3D printer includes a printer body and a printing platform (110) disposed on the printer body. The conveying device is connected between the 3D printer and the 3D printing post-processing device and is used to realize the transfer of the printing platform (110) between the printer body and the 3D printing post-processing device.

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