Powder cleaning equipment for 3D printing products

Abstract

The utility model discloses powder cleaning equipment for 3D printing products, which comprises a rack, a window assembly, a powder storage device and a material box assembly, the rack comprises an upper rack, a lower rack and a partition plate, a powder outlet is arranged in the middle of the partition plate, a powder cleaning platform is arranged right above the powder outlet, and the material box assembly is arranged above the powder cleaning platform. The window assembly is arranged on one side of the upper rack, the powder storage device comprises a powder collecting bin, a material barrel, a roller strip and a tray, the powder collecting bin is fixed to the bottom of the partition plate and corresponds to the powder outlet, the material barrel is arranged under the powder collecting bin and arranged on the top of the tray, and the roller strip is arranged on the tray. The material box assembly comprises a sliding groove guide rail, a material box and a cover plate, and the material box is connected to the sliding groove guide rail in a sliding mode. The powder cleaning equipment for the 3D printing product is advanced in design, compact in structure and convenient to use, powder escaping is effectively avoided, the working environment is improved, powder recycling is achieved, the 3D printing cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printing equipment technology, specifically relating to a powder cleaning device for 3D printed products. Background Technology

[0002] 3D printed customized products have complex and diverse structures. After the powder-laying process prints the parts, excess powder needs to be cleaned up to facilitate subsequent processes such as heat treatment, wire cutting, and support removal. Excess powder significantly impacts subsequent processing, thus requiring rigorous powder cleaning. Current powder cleaning methods primarily involve direct compressed air blowing: the solidified material is placed on a worktable open to the external environment, and then a blower using compressed air is used to clean the powder from the print chamber. Because of this openness, powder escapes directly into the air, resulting in wasted printing materials and a harsh working environment. Therefore, there is an urgent need to design a powder cleaning device for 3D printed products to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a powder cleaning device for 3D printed products to solve the problems existing in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a powder cleaning device for 3D printed products, comprising:

[0005] The frame includes an upper frame, a lower frame, and a partition plate disposed between the upper frame and the lower frame. A powder outlet is provided in the middle of the partition plate, a powder cleaning platform is provided directly above the powder outlet, and a material outlet is provided at one end of the partition plate.

[0006] A window assembly, comprising a window frame, a window panel, and a glove flange, wherein the window frame is hinged to the upper frame, the window panel is fixed inside the window frame, and the glove flange is fixed to the opening on the window panel;

[0007] The air duct assembly includes an air box disposed on the top of the partition plate, an air duct pipe disposed at the bottom of the partition plate, and a connecting pipe for connecting the air box and the air duct pipe.

[0008] The cleaning air source assembly includes an air tank, an air pipe connector that passes through and is fixed to a partition plate, and an airflow plate that is fixed to a viewing window frame. The air tank and the airflow plate are respectively connected to the air pipe connector through air pipes.

[0009] A powder storage device, comprising a powder collection bin, a material bucket, rollers, and a tray. The powder collection bin is fixed to the bottom of a partition plate and corresponds to the powder outlet. The material bucket is located directly below the powder collection bin and is connected to it via a connecting component. The tray is movably connected to the top of the rollers, and the material bucket is located on top of the tray.

[0010] A material box assembly, comprising a chute guide rail, a material box, and a cover plate, wherein the chute guide rail is fixed to the bottom of a partition plate and is disposed on both sides of the material outlet, the material box is slidably connected to the chute guide rail, and the cover plate is disposed directly above the material outlet and hinged to the partition plate.

[0011] Furthermore, cabinet doors are provided on both the front and rear sides of the lower frame, and a pneumatic triple unit is provided on one side of the lower frame.

[0012] Furthermore, the viewing window assembly also includes nitrogen springs disposed on both sides of the viewing window frame, a handle disposed on one side of the viewing window frame, and a lighting lamp disposed on the inner side plate of the upper frame. One end of the nitrogen spring is movably connected to the viewing window frame, and the other end is movably connected to the upper frame.

[0013] Furthermore, the air duct assembly also includes a flange connector, which is fixed to the outer wall of the lower frame and is sealed to one end of the air duct.

[0014] Furthermore, the cleaning gas source assembly also includes a hand valve, which is adapted to the gas source interface provided on the gas tank.

[0015] Furthermore, the connecting assembly includes a telescopic tube and a mounting ring fixed to the bottom end of the telescopic tube, wherein the outer diameter of the mounting ring is not less than the diameter of the feed inlet of the hopper.

[0016] Furthermore, the powder storage device also includes an installation strip and a limiting strip. There are two installation strips, which are fixed to the inner bottom surface of the lower frame and arranged in parallel. The roller strip is fixed in the installation groove of the installation strip, and the limiting strip is fixed to the top of the installation strip.

[0017] Furthermore, the tray is embedded between the roller strip and the limiting strip, and rollers are fixed at the four corners of the tray.

[0018] Furthermore, the bottom surface of the cover plate is provided with a sealing ring and a magnet. The sealing ring is adapted to the material outlet, and the cover plate is magnetically connected to the partition plate by the magnet.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. By setting up a frame and installing cabinet doors and viewing windows on the side of the frame, the powder cleaning space is sealed, effectively preventing powder from escaping and greatly improving the working environment;

[0021] 2. By setting up a powder storage device, it is convenient to recycle powder and reduce 3D printing costs. By setting up rollers and trays, the material bucket can be pulled to one side of the frame, making it convenient to replace the material bucket, which helps to shorten maintenance time and improve production efficiency.

[0022] 3. The cleaned product is placed into the material box through the material outlet via the built-in material box. The cleaned product can be directly removed from the frame by pulling out the material box.

[0023] 4. By connecting a cyclone dust collector to the flange connection, the powder recovery rate can be effectively improved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model excluding the viewing window panel;

[0026] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the partition plate of this utility model;

[0028] Figure 5 This is a front view of the powder storage device of this utility model;

[0029] Figure 6 This is a structural schematic diagram of the material box assembly of this utility model.

[0030] In the diagram: 100, frame; 101, upper frame; 102, lower frame; 103, partition plate; 104, powder outlet; 105, powder cleaning platform; 106, material outlet; 107, cabinet door; 108, pneumatic triplet; 200, viewing window assembly; 201, viewing window frame; 202, viewing window panel; 203, glove flange; 204, nitrogen spring; 205, handle; 206, lighting; 300, air duct assembly; 301, air box; 302. Air duct; 303. Connecting pipe; 304. Flange connector; 400. Powder cleaning air source assembly; 401. Air pipe connector; 402. Airflow plate; 500. Powder storage device; 501. Powder collection bin; 502. Material bucket; 503. Roller strip; 504. Tray; 505. Connecting assembly; 506. Mounting strip; 507. Limiting strip; 600. Material box assembly; 601. Slide rail; 602. Material box; 603. Cover plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0034] This utility model provides, for example Figure 1-6 The powder cleaning device for 3D printed products shown includes:

[0035] The frame 100 includes an upper frame 101, a lower frame 102, and a partition plate 103 disposed between the upper frame 101 and the lower frame 102. A powder outlet 104 is provided in the middle of the partition plate 103, and a powder cleaning platform 105 is provided directly above the powder outlet 104. A material outlet 106 is provided at one end of the partition plate 103. The printing chamber is placed on the powder cleaning platform 105, and the movement of the printing chamber in the X and Y directions is restricted by the positioning pin, which can prevent the printing chamber from sliding during the powder cleaning process. A placement plate is fixed on a side plate of the upper frame 101.

[0036] The viewing window assembly 200 includes a viewing window frame 201, a viewing window panel 202, and a glove flange 203. The viewing window frame 201 is hinged to the upper frame 101, making it easy to open the viewing window frame 201 and insert it into the printing chamber. The viewing window panel 202 is fixed inside the viewing window frame 201, making it easy to observe the inside of the frame 100 and preventing powder from escaping. The glove flange 203 is fixed to the opening on the viewing window panel 202, and a latex glove is fixedly fitted on the glove flange 203, making it easy for operators to wear latex gloves to perform powder cleaning operations and preventing powder from escaping from the glove flange 203.

[0037] The air duct assembly 300 includes an air box 301 disposed on the top of the partition plate 103, an air duct 302 disposed on the bottom of the partition plate 103, and a connecting pipe 303 for connecting the air box 301 and the air duct 302.

[0038] The cleaning air source assembly 400 includes an air tank (not shown in the figure), an air pipe connector 401 that passes through and is fixed to the partition plate 103, and an airflow plate 402 that is fixed to the window frame 201. The air tank and the airflow plate 402 are respectively connected to the air pipe connector 401 through air pipes.

[0039] The powder storage device 500 includes a powder collection bin 501, a material bucket 502, roller strips 503, and a tray 504. The powder collection bin 501 is fixed to the bottom of the partition plate 103 and corresponds to the powder outlet 104. The material bucket 502 is located directly below the powder collection bin 501 and is connected to it through a connecting component 505. The tray 504 is movably connected to the top of the roller strips 503, and the material bucket 502 is located on the top of the tray 504.

[0040] The material box assembly 600 includes a slide rail 601, a material box 602, and a cover plate 603. The slide rail 601 is fixed to the bottom of the partition plate 103 and is located on both sides of the material outlet 106. The material box 602 is slidably connected to the slide rail 601. The cover plate 603 is located directly above the material outlet 106 and is hinged to the partition plate 103.

[0041] For example, see Figures 1-2 As shown, cabinet doors 107 are provided on both the front and rear sides of the lower frame 102, and a pneumatic triplet 108 is provided on one side of the lower frame 102.

[0042] In this technical solution, opening the cabinet door 107 facilitates maintenance from the front and rear sides of the lower frame 102. By setting up a pneumatic triplet 108, the gas inside the pneumatic device can be filtered, depressurized, and lubricated to ensure that the pneumatic actuator can operate normally.

[0043] For example, see Figure 3As shown, the window assembly 200 also includes nitrogen springs 204 disposed on both sides of the window frame 201, a handle 205 disposed on one side of the window frame 201, and a lighting lamp 206 disposed on the inner side plate of the upper frame 101. One end of the nitrogen spring 204 is movably connected to the window frame 201, and the other end is movably connected to the upper frame 101.

[0044] In this technical solution, pulling the handle 205 makes it easy to open or close the viewing window frame 201. The nitrogen spring 204 plays a supporting, buffering, and height and angle adjustment role in opening or closing the viewing window frame 201. The lighting lamp 206 can illuminate the inside of the frame 100, providing a good visual environment for the powder cleaning operation.

[0045] For example, see Figures 1-2 As shown, the air duct assembly 300 also includes a flange connector 304, which is fixed to the outer wall of the lower frame 102 and is sealed to one end of the air duct 302.

[0046] In this technical solution, the flange connector 304 serves as the air outlet of the dust removal equipment, and is connected to a cyclone dust collector and an industrial dust collector in sequence. During the dust removal process, the powder suspended in the dust removal space is extracted by the air duct assembly 300 along with the air. Some of the powder in the powder-containing gas is collected by the cyclone dust collector, and the rest is collected by the industrial dust collector.

[0047] For example, the cleaning air source assembly 400 also includes a hand valve (not shown in the figure) that is adapted to an air source interface provided on the air tank.

[0048] In this technical solution, the gas tank has three gas source interfaces. The corresponding gas source is switched on and off by a manual valve, which can meet the needs of different gas sources in the required powder cleaning scenarios.

[0049] For example, see Figure 3 and Figure 5 As shown, the connecting assembly 505 includes a telescopic tube and a mounting ring fixed to the bottom end of the telescopic tube. The outer diameter of the mounting ring is not less than the diameter of the feed inlet of the material barrel 502.

[0050] In this technical solution, the mounting ring fits into the feed inlet of the material tank 502 and is fixedly connected to the material tank 502 by means of bolt fixing, magnetic fixing or plug-in fixing, which can effectively prevent the telescopic tube from separating from the material tank 502 and ensure that the powder can enter the material tank 502 through the telescopic tube. The outer diameter of the mounting ring is not less than the diameter of the feed inlet of the material tank 502, which can ensure that the powder entering the material tank 502 will not escape from the feed inlet.

[0051] For example, see Figure 5As shown, the powder storage device 500 also includes an installation strip 506 and a limiting strip 507. There are two installation strips 506 in total. The two installation strips 506 are fixed to the inner bottom surface of the lower frame 102 and are arranged in parallel. The roller strip 503 is fixed in the installation groove of the installation strip 506, and the limiting strip 507 is fixed to the top of the installation strip 506.

[0052] In this technical solution, the longitudinal section of the mounting strip 506 is an L-shaped structure, which facilitates the installation and support of the roller strip 503. The distance between the two roller strips 503 is not greater than the width of the tray 504. The distance between the limiting strip 507 and the corresponding roller strip 503 is not less than the thickness of the tray 504, which facilitates the installation of the tray 504.

[0053] For example, see Figure 5 As shown, the tray 504 is embedded between the roller strip 503 and the limiting strip 507, and rollers are fixed at the four corners of the tray 504.

[0054] This technical solution can prevent the tray 504 from detaching from the roller strip 503 during the sliding process, ensuring the stability of the structure. By fixing rollers at the four corners of the tray 504, the friction between the tray 504 and the mounting strip 506 can be reduced, making the tray 504 more effortless to slide.

[0055] For example, see Figure 6 As shown, the bottom surface of the cover plate 603 is provided with a sealing ring and a magnet. The sealing ring is adapted to the material outlet 106, and the cover plate 603 is magnetically connected to the partition plate 103 by the magnet.

[0056] In this technical solution, the sealing performance between the cover plate 603 and the material outlet 106 can be improved by setting a sealing ring, preventing powder from passing through the material outlet 106 into the material box 602 and contaminating the cleaned product. By setting a magnet, the cover plate 603 and the partition plate 103 can be connected more tightly.

[0057] Working principle: When using this powder cleaning equipment for 3D printed products, the cured product is placed on the powder cleaning platform 105 along with the printing chamber. The required gas in the powder cleaning air source component 400 is connected and turned on to clean the product in the printing chamber. The powder suspended in the powder cleaning space is extracted through the air duct component 300 with the airflow inside the space. The powder accumulated on the surface of the powder cleaning platform 105 is cleaned into the powder storage device 500 using tools such as brushes. The cleaned product is placed in the material box 602 through the material outlet 106. This powder cleaning equipment for 3D printed products features an advanced design, compact structure, ease of use, and reliable operation. By setting up a frame 100 with a cabinet door 107 and a viewing window assembly 200 on its side, the powder cleaning space is sealed, effectively preventing powder leakage and greatly improving the working environment. A powder storage device 500 facilitates powder recovery, reducing 3D printing costs. Roller strips 503 and a tray 504 allow the material bucket 502 to be pulled to one side of the frame 100 for easy replacement, shortening maintenance time and improving production efficiency. The cleaned product is placed into the built-in material box 602 through the material outlet 106, and pulled out of the material box 602 to directly remove the cleaned product from the frame 100. An external cyclone dust collector connected to the flange connector 304 effectively improves the powder recovery rate.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder cleaning device for 3D printed products, characterized in that, include: The frame (100) includes an upper frame (101), a lower frame (102), and a partition plate (103) disposed between the upper frame (101) and the lower frame (102). A powder outlet (104) is provided in the middle of the partition plate (103), a powder cleaning platform (105) is provided directly above the powder outlet (104), and a material outlet (106) is provided at one end of the partition plate (103). A window assembly (200) includes a window frame (201), a window panel (202), and a glove flange (203). The window frame (201) is hinged to the upper frame (101), the window panel (202) is fixed inside the window frame (201), and the glove flange (203) is fixed to the opening on the window panel (202). The air duct assembly (300) includes an air box (301) disposed on the top of the partition plate (103), an air duct pipe (302) disposed on the bottom of the partition plate (103), and a connecting pipe (303) for connecting the air box (301) and the air duct pipe (302); The cleaning air source assembly (400) includes an air tank, an air pipe connector (401) that is fixed through the partition plate (103), and an airflow plate (402) that is fixed to the window frame (201). The air tank and the airflow plate (402) are respectively connected to the air pipe connector (401) through an air pipe. A powder storage device (500) includes a powder collection bin (501), a material bucket (502), rollers (503), and a tray (504). The powder collection bin (501) is fixed to the bottom of a partition plate (103) and corresponds to the powder outlet (104). The material bucket (502) is located directly below the powder collection bin (501) and connected to it via a connecting component (505). The tray (504) is movably connected to the top of the rollers (503), and the material bucket (502) is located on the top of the tray (504). A material box assembly (600) includes a chute guide rail (601), a material box (602), and a cover plate (603). The chute guide rail (601) is fixed to the bottom of the partition plate (103) and is located on both sides of the material outlet (106). The material box (602) is slidably connected to the chute guide rail (601). The cover plate (603) is located directly above the material outlet (106) and is hinged to the partition plate (103).

2. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The lower frame (102) is provided with cabinet doors (107) on both the front and rear sides, and a pneumatic triplet (108) is provided on one side of the lower frame (102).

3. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The viewing window assembly (200) also includes nitrogen springs (204) disposed on both sides of the viewing window frame (201), a handle (205) disposed on one side of the viewing window frame (201), and a lighting lamp (206) disposed on the inner side plate of the upper frame (101). One end of the nitrogen spring (204) is movably connected to the viewing window frame (201), and the other end is movably connected to the upper frame (101).

4. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The air duct assembly (300) also includes a flange connector (304), which is fixed to the outer wall of the lower frame (102) and is sealed to one end of the air duct (302).

5. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The cleaning air source assembly (400) also includes a hand valve, which is adapted to the air source interface provided on the air tank.

6. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The connecting assembly (505) includes a telescopic tube and a mounting ring fixed to the bottom end of the telescopic tube, wherein the outer diameter of the mounting ring is not less than the diameter of the feed inlet of the hopper (502).

7. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The powder storage device (500) also includes an installation strip (506) and a limiting strip (507). There are two installation strips (506). The two installation strips (506) are fixed to the inner bottom surface of the lower frame (102) and are arranged in parallel. The roller strip (503) is fixed in the installation groove of the installation strip (506). The limiting strip (507) is fixed to the top of the installation strip (506).

8. The powder cleaning device for 3D printed products according to claim 7, characterized in that: The tray (504) is embedded between the roller strip (503) and the limiting strip (507), and rollers are fixed at the four corners of the tray (504).

9. The powder cleaning device for 3D printed products according to claim 1, characterized in that: The bottom surface of the cover plate (603) is provided with a sealing ring and a magnet. The sealing ring is adapted to the material outlet (106). The cover plate (603) is magnetically connected to the partition plate (103) by the magnet.

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