A 3D printed impurity cleaning mechanism

Abstract

The application provides a 3D printing impurity cleaning mechanism and belongs to the technical field of 3D printing. The right end of a cabin bottom plate is fixedly installed with a cabin side plate. The rear side of the cabin bottom plate is provided with a circular forming area. The connecting part of the cabin bottom plate and the cabin side plate is fixedly installed with a deposition frame. The top end of the right side of the deposition frame is provided with an opening. The top end of the opening is fixedly connected with a connecting frame. The top end of the connecting frame is fixedly connected with an impact sleeve. The top end of the impact sleeve is fixedly connected with a drainage sleeve. The inside of the impact sleeve is fixedly installed with a baffle. The application adopts the deposition principle and the gravity sedimentation principle. The smoke dust taken away by the wind field collides with the multi-stage buffer surface, changes the moving trend, and combines the gravity factor to shunt the falling smoke dust impurities. On the one hand, the raw material utilization rate can be improved to more than 97%, and the service life load of the rear-end filtering mechanism caused by the smoke dust can be effectively improved. The use cost is optimized reliably and effectively.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and in particular to an impurity cleaning mechanism for 3D printing. Background Technology

[0002] 3D printing, also known as additive manufacturing, is a manufacturing technology that builds objects by adding materials layer by layer. Unlike traditional subtractive manufacturing (such as cutting and drilling), 3D printing does not require molds or tools. It only requires computer-aided design (CAD) software to break down a three-dimensional model into several layers, and then stacking materials layer by layer to build complex shapes.

[0003] During the operation of 3D printing equipment, the energy impact of the laser melting powder generates splatter and black smoke. This splatter and smoke not only affect print quality but can also damage the equipment. Therefore, the primary cleaning strategy currently is to remove dust particles and splatter through airflow. However, during the printing process, the energy impact inevitably stirs up some usable powder. This powder is ultimately transported to the filter mechanism through the air duct and disposed of as waste powder. Data verification shows that over 20% of the powder is wasted in this process, leading to decreased material utilization and increased costs. This waste not only affects economic efficiency but also poses a challenge to the efficient use of resources. Therefore, how to reduce powder waste while ensuring print quality is a crucial problem that 3D printing technology needs to solve. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by this invention is how to reduce powder waste while ensuring printing quality.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a 3D-printed impurity cleaning mechanism, including a chamber floor plate, a chamber side plate fixedly installed at the right end of the chamber floor plate, a circular forming area opened on the rear side of the chamber floor plate, a deposition frame fixedly installed at the connection between the chamber floor plate and the chamber side plate, an opening at the top right side of the deposition frame, a connecting frame fixedly connected to the top of the opening, an impact sleeve fixedly connected to the top of the connecting frame, a drainage sleeve fixedly connected to the top of the impact sleeve, and a baffle fixedly installed inside the impact sleeve, and a collection module provided inside the deposition frame.

[0008] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, wherein: an advection wind field is provided above the bottom plate of the chamber, and the deposition frame is located on the right side of the advection wind field, and a smoke inlet is provided at the left end of the deposition frame.

[0009] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, the baffle is placed obliquely inside the impact sleeve, and the baffle makes an angle of 30 degrees with the vertical direction.

[0010] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, the interior of the deposition frame, the connecting frame, the impact sleeve and the drainage sleeve are all hollow structures, and the interior of the connecting frame is a figure-eight shape with a contraction opening. The cross-sectional area of ​​the contact position between the connecting frame and the opening on the deposition frame is larger than the cross-sectional area of ​​the contact opening between the connecting frame and the impact sleeve.

[0011] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, the collection module includes a deposition plate fixedly installed inside the deposition frame, and a flipping structure disposed at the front end of the deposition frame. The deposition plate consists of a section of inclined surface and a section of V-surface. A collection hopper is slidably connected inside the V-surface structure. An electric cylinder is drivenly connected to the rear end of the flipping structure. A telescopic rod is movably connected to the output end of the electric cylinder, and the rear end of the telescopic rod is fixedly connected to the front wall of the collection hopper.

[0012] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, a gap flow channel exists between the junction formed by the inclined surface and the V-surface and the inner top wall of the deposition frame.

[0013] As a preferred embodiment of the 3D printing impurity cleaning mechanism of the present invention, the front end of the deposition frame is provided with a through groove, and the front end of the collection hopper passes through the through groove.

[0014] The beneficial effects of this invention are as follows: By adopting the principles of deposition and gravity sedimentation, a slope or buffer surface is set up on the original flow path of the wind field. Since the powder density is much greater than that of dust particles, the powder is deposited at the air inlet with the help of the slope. Then, the dust carried by the wind field collides with the multi-level buffer surface, changing its movement trend. Combined with the gravity factor, the falling dust impurities are diverted. On the one hand, the utilization rate of raw materials can be increased to more than 97%, and on the other hand, the life load of the downstream filtration mechanism caused by dust is effectively improved, thus optimizing the use cost reliably and effectively. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front sectional view of the connection between the deposition frame and the side panel of the compartment in this invention;

[0018] Figure 3 This is a perspective view of the collection module of the present invention;

[0019] Figure 4 This is a perspective view of the deposition frame and the connecting frame of the present invention. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example

[0024] Reference Figures 1-4This embodiment provides a 3D printing impurity cleaning mechanism, including a chamber bottom plate 1, a chamber side plate 2 fixedly installed at the right end of the chamber bottom plate 1, the chamber bottom plate 1 and the chamber side plate 2 are the bottom plate and side plate of the chamber box, and a circular forming area 101 is opened at the rear end of the chamber bottom plate 1, and an advection wind field is provided above the circular forming area 101. During laser sintering, dust will drift into the advection wind field above the circular forming area 101. A deposition frame 3 is provided on the right side of the advection wind field, and the deposition frame 3 is fixedly installed at the connection between the chamber bottom plate 1 and the chamber side plate 2. An opening 301 is opened at the top right of the deposition frame 3, and a connecting frame 4 is fixedly connected to the top of the opening 301. An impact sleeve 5 is fixedly connected to the top of the connecting frame 4, and a drainage sleeve 6 is fixedly connected to the top of the impact sleeve 5. A baffle 501 is fixedly installed inside the impact sleeve 5, and a collection module 7 is provided inside the deposition frame 3.

[0025] It should be noted that the interiors of the sedimentation frame 3, the connecting frame 4, the impact sleeve 5, and the diversion sleeve 6 are all hollow structures, and the sedimentation frame 3 has a smoke inlet 302 on the left side, so that the smoke and dust in the advection wind field can enter the sedimentation frame 3 from the smoke inlet 302, flow through the connecting frame 4 and the impact sleeve 5, and finally be discharged through the diversion sleeve 6.

[0026] Specifically, the interior of the connecting frame 4 is shaped like a regular "V" with a contracted opening. The cross-sectional area of ​​the contact position between the connecting frame 4 and the upper opening of the sedimentation frame 3 is larger than the cross-sectional area of ​​the contact opening between the connecting frame 4 and the impact sleeve 5. The baffle 501 is placed obliquely inside the impact sleeve 5, and the baffle 501 makes a 30-degree angle with the vertical direction. After the dust enters the sedimentation frame 3 through the smoke inlet 302, it will first impact the side walls of the sedimentation frame 3 and the connecting frame 4. The powder in the dust will fall to the bottom of the sedimentation frame 3 under the combined action of gravity and impact. Subsequently, the dust entering the impact sleeve 5 can also have a second impact with the baffle 501, causing the powder impurities that have not been completely removed in the dust to fall again into the sedimentation frame 3. Another part of the flue gas will be discharged through the upper drainage sleeve 6. Through multi-stage buffer collision, the movement trend is changed, and the falling dust impurities are diverted by gravity. On the one hand, the raw material utilization rate can be increased to more than 97%, and on the other hand, the life load of the downstream filter mechanism caused by dust can be effectively improved, thus optimizing the operating cost reliably and effectively.

[0027] Furthermore, the collection module 7 includes a sedimentation plate 701 fixedly installed inside the sedimentation frame 3, and a flipping structure 702 disposed at the front end of the sedimentation frame 3. The sedimentation plate 701 consists of an inclined surface and a V-shaped surface. A collection hopper 703 is slidably connected within the V-shaped surface structure. An electric cylinder 704 is driven to the rear end of the flipping structure 702. A telescopic rod 705 is movably connected to the output end of the electric cylinder 704, and the rear end of the telescopic rod 705 is fixedly connected to the front wall of the collection hopper 703. The sedimentation plate 701 installed inside the sedimentation frame 3, and the interior of the sedimentation plate 701 is open... The V-shaped groove structure allows the collecting hopper 703 to be positioned and supported within the deposition frame 3, ensuring that the powder knocked off from the dust can fall into the collecting hopper 703. After laser sintering, by activating the electric cylinder 704, the collecting hopper 703 can be moved out of the deposition frame 3 via the telescopic rod 705. Then, by using the flipping structure 702, the electric cylinder 704, the telescopic rod 705, and the collecting hopper 703 are flipped, allowing the powder collected in the collecting hopper 703 to be poured out and enter the next process, achieving the effect of powder reuse and saving production costs.

[0028] It should be noted that the flipping structure 702 is mainly composed of a servo motor and a rotating shaft. One end of the rotating shaft is connected to the output end of the servo motor through a coupling, and the other end is fixedly connected to the front wall of the electric cylinder 704. Therefore, when the servo motor is started, the servo motor can drive the electric cylinder 704 to rotate circumferentially through the rotating shaft. The electric cylinder 704 can then drive the collection hopper 703 to achieve the flipping function through the telescopic rod 705. In this embodiment, both the servo motor and the electric cylinder 704 are existing technologies, and their specific structures will not be described in detail.

[0029] Preferably, there is a gap flow channel between the junction of the inclined surface and the V-face of the deposition plate 701 and the inner top wall of the deposition frame 3, which ensures that the flue gas will not be completely blocked by the deposition plate 701 after entering from the flue gas inlet 302 of the deposition frame 3, and ensures the space for the flue gas to flow in a directional manner within the connecting frame 4.

[0030] Preferably, the front end of the sedimentation frame 3 is provided with a through groove 303, and the front end of the collection hopper 703 passes through the through groove 303, so that when the telescopic rod 705 retracts into the electric cylinder 704, the collection hopper 703 can be pulled out from the sedimentation frame 3.

[0031] Working Principle: A stratified airflow field is formed above the circular forming area 101 on the bottom plate 1 of the chamber. During laser sintering, dust enters the stratified airflow field and enters the deposition frame 3 through the smoke inlet 302 on the bottom plate 1. Within the deposition frame 3, the dust undergoes multiple collisions and gravity effects, causing powder impurities to gradually settle to the bottom of the deposition frame and fall into the collection hopper 703 in the collection module 7. The collection module 7 utilizes the deposition plate 701 and the flipping structure 702, and uses an electric cylinder 704 to drive the collection hopper 703 to remove and empty the deposited powder impurities, achieving powder reuse and saving production costs. The overall design effectively improves raw material utilization and filter lifespan through multi-stage buffer collisions and gravity diversion, reducing operating costs.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0034] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A 3D-printed impurity cleaning mechanism, characterized in that: The system includes a cabin floor plate (1), a cabin side plate (2) fixedly installed at the right end of the cabin floor plate (1), a circular forming area (101) opened on the rear side of the cabin floor plate (1), a sedimentation frame (3) fixedly installed at the connection between the cabin floor plate (1) and the cabin side plate (2), an opening (301) opened at the top right side of the sedimentation frame (3), a connecting frame (4) fixedly connected at the top of the opening (301), an impact sleeve (5) fixedly connected at the top of the connecting frame (4), a drainage sleeve (6) fixedly connected at the top of the impact sleeve (5), and a baffle (501) fixedly installed inside the impact sleeve (5). A collection module (7) is provided inside the sedimentation frame (3). A stratospheric wind field is provided above the bottom plate (1) of the cabin, and the sedimentation frame (3) is located on the right side of the stratospheric wind field, and a smoke inlet (302) is provided at the left end of the sedimentation frame (3). The baffle (501) is placed obliquely inside the impact sleeve (5), and the baffle (501) makes an angle of thirty degrees with the vertical direction; The interiors of the deposition frame (3), the connecting frame (4), the impact sleeve (5) and the drainage sleeve (6) are all hollow structures, and the interior of the connecting frame (4) is a regular "eight" shaped contraction opening. The cross-sectional area of ​​the contact position between the connecting frame (4) and the opening on the deposition frame (3) is larger than the cross-sectional area of ​​the contact opening between the connecting frame (4) and the impact sleeve (5). The collection module (7) includes a sedimentation plate (701) fixedly installed inside the sedimentation frame (3), and a flipping structure (702) disposed at the front end of the sedimentation frame (3). The sedimentation plate (701) consists of a section of inclined surface and a section of V-surface. A collection hopper (703) is slidably connected inside the V-surface structure. An electric cylinder (704) is driven to the rear end of the flipping structure (702). A telescopic rod (705) is movably connected to the output end of the electric cylinder (704), and the rear end of the telescopic rod (705) is fixedly connected to the front wall of the collection hopper (703).

2. The 3D printing impurity cleaning mechanism as described in claim 1, characterized in that: There is a gap channel between the junction formed by the inclined surface and the V-surface and the inner top wall of the deposition frame (3).

3. The 3D printing impurity cleaning mechanism as described in claim 2, characterized in that: The front end of the sedimentation frame (3) is provided with a through groove (303), and the front end of the collection hopper (703) passes through the through groove (303).

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