A supply assembly and a 3D printing post-processing device

Abstract

The utility model relates to 3D printing technical field especially is related to a feeding assembly and 3D printing post-processing device. The feeding assembly provided by the utility model, including feeding source and feeding channel, feeding channel intercommunication processing chamber and feeding source, and feeding source supplies the cleaning material to the processing chamber through the feeding pump. Realize automatic flushing, alleviate the artificial labor quantity and clean conveniently.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a feeding component 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, which involves a large amount of manual labor and is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a feeding component and a 3D printing post-processing device to solve the technical problems of existing post-processing methods for cleaning printed parts, which involve a large amount of manual labor and are inconvenient to clean.

[0004] In a first aspect, the present invention provides a feeding component for a 3D printing post-processing device. The 3D printing post-processing device includes a post-processing body and a processing chamber disposed in the post-processing body. The feeding component includes a feeding source and a feeding channel. The feeding channel connects the processing chamber and the feeding source. The feeding source supplies cleaning material to the processing chamber through a feeding pump.

[0005] In an optional embodiment, the system further includes a recovery port and a recovery channel disposed in the post-processing body for recovering the cleaned material in the processing chamber. The recovery channel connects the recovery port and the material supply source, and the material supply source includes an internal storage tank.

[0006] In an optional embodiment, the material supply source includes an external storage tank, and the external storage tank is detachably connected to the 3D printing post-processing device. The external storage tank is equipped with a flow channel control module, which includes a material supply control module for controlling the external storage tank to feed cleaning material into the processing chamber.

[0007] In an optional embodiment, the external storage tank is connected to the processing chamber via a recycling channel, and the flow channel control module further includes a recycling control module for controlling the external storage tank to recycle the cleaning material into the processing chamber, wherein the feeding channel and the recycling channel are integrally or separately configured.

[0008] In an optional embodiment, the external storage tank has a cleaning agent tank and a recycling tank for holding cleaning materials. The feeding control module includes a feeding pump and a liquid flow control component disposed on the flow channel between the cleaning agent tank and the processing chamber. The recycling control module includes a return pump and a liquid flow control component disposed on the flow channel between the recycling tank and the processing chamber. The feeding pump and the return pump are either integrally disposed or separately disposed.

[0009] In an optional embodiment, multiple cleaning agent tanks are provided, the feeding pump is provided on the flow channel between each cleaning agent tank and the treatment chamber, and each flow channel between the cleaning agent tank and the treatment chamber is provided with a liquid flow control component.

[0010] In an optional embodiment, the external storage bin includes a base and a housing detachably connected to the base, with a guide assembly structure provided between the base and the housing, and the housing includes the cleaning agent bucket and the recycling bucket.

[0011] In an optional implementation, both the feeding control module and the recycling control module are disposed on the base.

[0012] In an optional embodiment, the feeding control module further includes a cleaning agent inlet, a post-processing unit interface, a feeding pump inlet pipe, and a feeding pump outlet pipe. The base is provided with an external storage tank cleaning agent inlet connected to the cleaning agent tank. The cleaning agent inlet is connected to the external storage tank cleaning agent inlet. The post-processing unit interface is connected to the feeding channel. The inlet of the feeding pump is connected to the cleaning agent inlet through the feeding pump inlet pipe, and the outlet of the feeding pump is connected to the post-processing unit interface through the feeding pump outlet pipe. A flow control element for controlling the connection and disconnection between the cleaning agent inlet and the feeding pump inlet pipe is provided between the cleaning agent inlet and the feeding pump inlet pipe. A flow control element for controlling the connection and disconnection between the post-processing unit interface and the feeding pump outlet pipe is also provided between the post-processing unit interface and the feeding pump outlet pipe.

[0013] In an optional embodiment, the recycling control module further includes a recycled liquid outflow interface, a recycled liquid inflow interface, a return pump inflow pipe, and a return pump outflow pipe. The base is provided with an external storage tank recycled liquid outflow interface connected to the recycling bucket. The recycled liquid outflow interface is connected to the external storage tank recycled liquid outflow interface. The recycled liquid inflow interface is connected to the recycling channel. The inlet of the return pump is connected to the recycled liquid inflow interface through the return pump inflow pipe. The outlet of the return pump is connected to the recycled liquid outflow interface through the return pump outflow pipe. A flow control component for controlling the connection and disconnection between the recycled liquid inflow interface and the return pump inflow pipe is provided between the recycled liquid outflow interface and the return pump outflow pipe.

[0014] In an optional embodiment, when the feeding channel and the recycling channel are integrated, the post-processing body interface and the recycling liquid inflow interface are integrated; when the feeding pump and the return pump are integrated, the feeding pump inflow pipe and the return pump inflow pipe are integrated, and the feeding pump outflow pipe and the return pump outflow pipe are integrated.

[0015] In an optional embodiment, the cleaning agent tank and the recycling tank are integrally arranged, or the cleaning agent tank and the recycling tank are separate units.

[0016] Secondly, this utility model provides a 3D printing post-processing device, including a post-processing body and a feeding assembly as described above disposed on the post-processing body.

[0017] Compared with the prior art, the feeding assembly provided by this utility model has the following technical advantages: The feeding assembly provided by this utility model is used in a 3D printing post-processing device. The 3D printing post-processing device includes a post-processing body and a processing chamber disposed in the post-processing body. The feeding assembly includes a feeding source and a feeding channel. The feeding channel connects the processing chamber and the feeding source. The feeding source supplies cleaning material to the processing chamber through a feeding pump. This achieves automatic rinsing, reduces manual labor, and facilitates cleaning.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] 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.

[0020] Figure 1 A schematic diagram of the flow channel control module structure provided in this embodiment of the utility model; Figure 2 A schematic diagram of the external storage box structure provided in an embodiment of this utility model; Figure 3 A schematic diagram of the base structure provided for an embodiment of this utility model; Figure 4 Exploded view of the external storage box provided for an embodiment of this utility model; Figure 5 Another perspective view of the internal structure of the processing chamber provided in this embodiment of the utility model; Figure 6 A top view of the internal structure of the processing chamber provided in an embodiment of this utility model; Figure 7 This is a schematic diagram of the external structure of the post-processing unit provided in an embodiment of the present utility model; Figure 8 The flow channel control logic diagram of the post-processing device for the cleaning process provided in the embodiments of this utility model; Figure 9 This is a schematic diagram of the internal storage box structure provided for an embodiment of the present utility model.

[0021] Icons: 1-Post-processing unit; 11-Processing chamber; 144-Discharge port; 145-Spraying channel; 146-Spraying pump; 152-Second air vent; 4-Gas supply components; 61-Internal storage bin; 63-Feed pump; 9-Blow-out parts; 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-Recovery liquid outlet; 1019-Post-processing unit 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

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0027] The specific structure is as follows: Figures 1 to 8 As shown.

[0028] This embodiment provides a feeding assembly for a 3D printing post-processing device. The 3D printing post-processing device includes a post-processing body 1 and a processing chamber 11 disposed on the post-processing body 1. The feeding assembly includes an external storage tank 10 detachably connected to the 3D printing post-processing device. The external storage tank 10 communicates with the processing chamber 11 through a feeding channel. The external storage tank 10 is equipped with a flow channel control module 101, which includes a feeding control module for controlling the external storage tank 10 to feed cleaning material into the processing chamber 11. The external storage tank 10 is detachably connected to the post-processing device, making installation and disassembly convenient and easy to maintain. Simultaneously, the feeding control module of the flow channel control module 101 controls the external storage tank 10 to feed cleaning material into the processing chamber 11, resulting in precise automated control and high cleaning efficiency.

[0029] In this embodiment, the external storage tank 10 is detachably connected to the post-processing body 1. The external storage tank 10 is connected to the processing chamber 11 via a feeding channel. The external storage tank 10 is equipped 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 connected to the processing chamber 11 via a recycling channel. The flow channel control module 101 also includes a recycling control module for controlling the external storage tank 10 to return cleaning materials to the processing chamber 11. The feeding channel and the recycling channel are either integrated or separate. 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.

[0030] In this embodiment, as Figure 9As shown, the feeding assembly may further include an internal storage tank 61, wherein a feeding channel is connected between the internal storage tank 61 and the processing chamber 11, and a feeding pump 63 is disposed in the feeding channel. In the above structure, the internal storage tank 61 is used to store the cleaning material, and the feeding pump 63 is used to send the cleaning material in the internal storage tank 61 into the processing chamber 11 through the feeding channel. The internal storage tank 61 is integrated on the post-processing unit 1, while the external storage tank 10 is detachably connected to the post-processing unit 1. The specific configuration of the internal storage tank 61, the external storage tank 10, or both depends on the requirements.

[0031] In some embodiments, the feeding assembly further includes a recovery port and a recovery channel disposed in the post-processing body 1 for recovering the cleaning material in the processing chamber 11. The recovery channel connects the recovery port and the internal storage tank 61. A control valve is provided on the recovery channel, which can be a solenoid valve or a manual valve, for connecting or disconnecting the recovery channel. During the cleaning process, the control valve closes and disconnects the recovery channel, at which time the cleaning material cannot be discharged through the recovery channel; after the cleaning is completed, the control valve opens and connects the recovery channel, at which time the cleaning material flows back into the internal storage tank 61 through the recovery channel for recycling.

[0032] In some embodiments, the external storage tank 10 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 material supply 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.

[0033] Specifically, the feeding control module also includes a cleaning agent inlet interface, a post-processing unit interface 1019, a feeding pump inlet pipe 10110, and a feeding pump outlet pipe 10111. The base 102 is equipped with an external storage tank cleaning agent inlet interface connected to the cleaning agent tank. The cleaning agent inlet interface is connected to the external storage tank cleaning agent inlet interface. The post-processing unit interface 1019 is connected to the feeding channel. The inlet of the feeding pump 63 is connected to the cleaning agent inlet interface via the feeding pump inlet pipe 10110, and the outlet of the feeding pump 63 is connected to the feeding pump outlet pipe 10111. The post-processing unit interface 1011 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 that communicates with the recovery tank 108, and a recovery liquid outlet interface 1018 that communicates with the external storage tank recovery liquid outlet interface 1022. A recovery liquid inlet interface is connected to the recovery channel. 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 for the recovery liquid inlet interface and the recovery pump inlet pipe is provided between the recovery liquid inlet interface and the recovery pump. A flow control device for controlling the connection and disconnection between the inflow and outflow pipes is provided between the recovered liquid outflow port 1018 and the return pump outflow pipe. Specifically, when the feeding channel and the recovery channel are integrated, the post-processing body interface 1019 is integrated with the recovered liquid inflow port; when the feeding pump 63 and the return pump are integrated, the feeding pump inflow pipe 10110 and the return pump inflow pipe are integrated, and the feeding pump outflow pipe 10111 and the return pump outflow pipe are integrated. In this embodiment, the feeding control module and the recycling control module can exist independently of each other, or they can share a common part, that is, the feeding channel and the recycling channel 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.

[0034] In this preferred embodiment, the flow control module 101 includes a first liquid flow control component 1011, a second liquid flow control component 1012, a third liquid flow control component 1013, a fourth liquid flow control component 1014, a fifth liquid 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 63. The external storage tank 10 is equipped with a first liquid flow control component 1011. There are two cleaning agent inflow ports: an external storage tank cleaning agent inflow port 1021, an external storage tank recovery liquid outflow port 1022, and a second external storage tank cleaning agent inflow port 1023. That is, there are two cleaning agent inflow ports, namely a first cleaning agent inflow port 1016 and a second cleaning agent inflow port 1017, and two external storage tank cleaning agent inflow ports, namely a first external storage tank cleaning agent inflow port 1021, an external storage tank recovery liquid outflow port 1022, and a second external storage tank cleaning agent inflow 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; 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; 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; and the first liquid flow control component 1011 is disposed 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 10110. The second liquid flow control component 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 liquid flow control component 1013 is located between the post-processing machine interface 1019 and the feed pump inlet pipe 10110 to control the on / off connection between the post-processing machine interface 1019 and the feed pump inlet pipe 10111. The fourth liquid flow control component 1014 is located between the post-processing machine interface 1019 and the feed pump outlet pipe 10111 to control the on / off connection between the post-processing machine interface 1019 and the feed pump outlet pipe 10111. The fifth liquid flow control component 1015 is located between the recovered liquid outlet interface 1018 and the feed pump outlet pipe 10111 to control the on / off connection between the recovered 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, 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. The overall structure is simple.

[0035] In some embodiments, the 3D printing post-processing apparatus further includes a cleaning assembly disposed in the processing chamber 11 for applying cleaning material to the surface of the printed part. The cleaning assembly includes an atomizing assembly for spraying cleaning material onto the surface of the printed part. The cleaning assembly includes a material holding section for holding the cleaning material, and the atomizing assembly is in communication with an external storage tank 10 outside the processing chamber 11.

[0036] In some embodiments, the spraying assembly includes a spraying element 9 disposed in a material holding section. The spraying element 9 is connected to a spraying source. The spraying source pressurizes cleaning material to the spraying element 9 through a spraying pump 146. The spraying source includes a material holding section, which is provided with a discharge port 144. The discharge port 144 is connected to the spraying element 9 through a spraying channel 145. A spraying circuit is formed between the material holding section, the discharge port 144, and the spraying element 9. The spraying pump 146 is disposed in the spraying channel 145.

[0037] 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.

[0038] In this embodiment, the first cleaning agent and the second cleaning agent include, but are not limited to, ethanol, isopropanol, water, etc.

[0039] 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.

[0040] 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 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 begins the cleaning process, the third flow control element 1013 and the fourth 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 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.

[0041] 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, and the feeding channel is connected to the spraying channel 145. The housing 103 and the flow channel control module 101 are installed on the base 102. The first cleaning agent inflow interface 1016, the second cleaning agent inflow interface 1017, the recovered liquid outflow interface 1018, and the post-processing machine interface 1019 are respectively connected to the corresponding interfaces on the housing 103. This enables the first cleaning agent inflow interface 1016 to connect with the cleaning agent inflow interface 1021 of the first external storage tank, the second cleaning agent inflow interface 1017 to connect with the cleaning agent inflow interface 1023 of the second external storage tank, the recovered liquid outflow interface 1018 to connect with the recovered liquid outflow interface 1022 of the external storage tank, and the post-processing machine interface 1019 to connect with the feeding channel. Installation and disassembly are convenient, saving time and effort.

[0042] In some embodiments, the post-processing device also includes a display screen 105 disposed on the external storage tank 10. The operating conditions can be monitored through the display screen 105. The display screen 105 is disposed on the base 102, but is not limited thereto, and can also be disposed at other locations on the external storage tank 10.

[0043] In some embodiments, the 3D printing post-processing apparatus further includes a drying component and an air supply component 4 disposed on the post-processing body 1. In this embodiment, the air supply component 4 includes an air supply channel, and the drying component includes a heater disposed on the air supply channel. A second vent 152 is formed between the air supply channel and the processing chamber 11. Air heated by the heater is sent into the processing chamber 11 through the second vent 152 to dry the printed parts with hot air.

[0044] This embodiment provides a 3D printing post-processing device, including a post-processing body 1 and a feeding assembly as described above, disposed on the post-processing body 1. Therefore, the technical advantages and effects achieved by this 3D printing post-processing device include those achieved by the aforementioned feeding assembly, which will not be elaborated further here.

[0045] This embodiment provides a material feeding control method, specifically a control method for a particular embodiment of 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: S1. Prepare for cleaning by injecting either the first or second cleaning agent into the treatment chamber 11.

[0046] 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.

[0047] 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.

[0048] S2. 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.

[0049] S3. Cleaning is complete. 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.

[0050] 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. 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.

[0051] 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: S1. Prepare for cleaning. Open the first liquid flow control unit 1011 and the fourth liquid flow control unit 1014, and close the third liquid flow control unit 1013 and the fifth liquid flow control unit 1015. Start the feed pump 63 to deliver the first cleaning agent in the external storage tank 10 to the treatment chamber 11.

[0052] S2. 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.

[0053] S3. Cleaning is complete. 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.

[0054] 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.

[0055] 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 feeding assembly for a 3D printing post-processing device, the 3D printing post-processing device comprising a post-processing body (1) and a processing chamber (11) disposed in the post-processing body (1), characterized in that, The feeding assembly includes a feeding source and a feeding channel. The feeding channel connects the processing chamber (11) and the feeding source. The feeding source feeds the cleaning material into the processing chamber (11) through a feeding pump (63).

2. The feeding assembly according to claim 1, characterized in that, It also includes a recycling port and a recycling channel set in the post-processing body (1) for recycling the cleaning material in the processing chamber (11), the recycling channel connecting the recycling port and the material supply source, the material supply source including an internal storage tank (61).

3. The feeding assembly according to claim 1, characterized in that, The material supply source includes an external storage tank (10), and the external storage tank (10) is detachably connected to the 3D printing post-processing device. The external storage tank (10) is provided with a flow channel control module (101), which includes a material supply control module for controlling the external storage tank (10) to feed cleaning materials into the processing chamber (11).

4. The feeding assembly according to claim 3, characterized in that, The external storage tank (10) is connected to the processing chamber (11) through a recycling channel. The flow channel control module (101) also includes a recycling control module for controlling the external storage tank (10) to recycle the cleaning material to the processing chamber (11). The feeding channel and the recycling channel are either integrated or separate.

5. The feeding assembly according to claim 4, characterized in that, The external storage tank (10) has a cleaning agent tank and a recycling tank (108) for holding cleaning materials. The feeding control module includes a feeding pump (63) and a liquid flow control component disposed on the flow channel between the cleaning agent tank and the treatment chamber (11). The recycling control module includes a return pump and a liquid flow control component disposed on the flow channel between the recycling tank (108) and the treatment chamber (11). The feeding pump (63) and the return pump are either integrally disposed or separately disposed.

6. The feeding assembly according to claim 5, characterized in that, The cleaning agent tanks are provided in multiple ways. The feed pump (63) is provided on the flow channel between each cleaning agent tank and the treatment chamber (11), and the liquid flow control component is provided on the flow channel between each cleaning agent tank and the treatment chamber (11).

7. The feeding assembly according to claim 6, characterized in that, The external storage box (10) includes a base (102) and a box body (103) detachably connected to the base (102). A guide assembly structure is provided between the base (102) and the box body (103). The box body (103) includes the cleaning agent bucket and the recycling bucket (108).

8. The feeding assembly according to claim 7, characterized in that, Both the feeding control module and the recycling control module are located on the base (102).

9. The feeding assembly according to claim 8, characterized in that, 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 that communicates with 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. The inlet of the feeding pump (63) is connected to the cleaning agent inlet through the feeding pump inlet pipe (10110). The feeding pump (63) The outlet of the cleaning agent is connected to the post-processing unit interface (1019) through the feed pump outlet pipe (10111). A liquid flow control device for controlling the connection and disconnection between the cleaning agent inlet interface and the feed pump inlet pipe (10110) is provided between the post-processing unit interface (1019) and the feed pump outlet pipe (10111).

10. The feeding assembly according to claim 9, characterized in that, The recycling control module further includes a recycling liquid outflow interface (1018), a recycling liquid inflow interface, a return pump inflow pipe, and a return pump outflow pipe. The base (102) is provided with an external storage tank recycling liquid outflow interface (1022) that communicates with the recycling bucket (108). The recycling liquid outflow interface (1018) is connected to the external storage tank recycling liquid outflow interface (1022). The recycling liquid inflow interface is connected to the recycling channel. The inlet of the return pump is connected to the recycling liquid through the return pump inflow pipe. The inlet interface is connected, and the outlet of the return pump is connected to the recovery liquid outlet interface (1018) through the return pump outlet pipe. A liquid flow control device for controlling the connection and disconnection between the recovery liquid inlet interface and the return pump inlet pipe is provided between the recovery liquid inlet interface and the return pump inlet pipe. A liquid flow control device for controlling the connection and disconnection between the recovery liquid outlet interface (1018) and the return pump outlet pipe is provided between the recovery liquid outlet interface (1018) and the return pump outlet pipe.

11. The feeding assembly according to claim 10, characterized in that, When the feeding channel and the recycling channel are integrated, the post-processing body interface (1019) and the recycling liquid inflow interface are integrated; when the feeding pump (63) and the return pump are integrated, the feeding pump inflow pipe (10110) and the return pump inflow pipe are integrated, and the feeding pump outflow pipe (10111) and the return pump outflow pipe are integrated.

12. The feeding assembly according to claim 5, characterized in that, The cleaning agent tank and the recycling tank (108) are integrated, or the cleaning agent tank and the recycling tank (108) are separate.

13. A 3D printing post-processing apparatus, characterized in that, It includes a post-processing unit (1) and a feeding assembly as described in any one of claims 1-12 disposed on the post-processing unit (1).

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