Air guide structure of 3D printer and 3D printer

Abstract

The air guide structure of the 3D printer comprises a seat body with a cavity, the seat body is provided with an air inlet capable of being communicated with the cavity, the seat body is further connected with an air guide cover, the air guide cover is provided with a plurality of air outlets, the air guide cover is further provided with a plurality of air guide grooves capable of guiding the interior of the cavity to flow towards the air outlets, and the air guide grooves are communicated with the cavity. The air guide grooves are independently arranged and are arranged in an asymptotic mode, and the sectional areas of the air guide grooves are gradually reduced from one side of the cavity to the air outlet in an asymptotic mode. The utility model further provides a 3D printer which comprises a printer body, and an air guide structure of the 3D printer is connected to the printer body. The utility model aims to provide the air guide structure of the 3D printer, which is uniform in air guide. The utility model further provides a 3D printer capable of guiding air uniformly.

Description

Technical Field

[0001] This utility model relates to the field of 3D technology, and in particular to an air guide structure for a 3D printer and a 3D printer. Background Technology

[0002] During the printing process, existing 3D printers produce black smoke when the powder material in the printing chamber burns or thermally decomposes. This black smoke spreads to the top of the printing chamber, causing a "black top," and poses potential hazards to the environment and health.

[0003] Removing smoke and carbon deposits generated during the printing process is a crucial step. To achieve this, a purification system is typically installed inside the printer. This system removes smoke and carbon deposits through air circulation. The air guide structure is a key component of this purification system. Existing air guide structures often have relatively long ducts, generally divided into three sections: an inlet section, a guide section, and an outlet section. The guide section is often quite long. When the airflow passes from the inlet section to the guide section, there is a large space, and turbulence easily forms at the junction of the guide and outlet sections. This turbulent airflow is disordered and directionless. Furthermore, the air guide holes are usually located on the air guide cover and are typically just a single opening. Therefore, when the airflow reaches the air guide cover, it is also blocked, creating turbulence at this point. Consequently, when the airflow enters the printing chamber through the air guide hole, it is not straight but at a certain angle. This causes the smoke and carbon deposits to scatter throughout the printer, making it difficult to remove them effectively. It may even cause the smoke and carbon deposits to adhere to the printed parts, affecting print quality. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of the prior art and provide an air guiding structure for a 3D printer that provides uniform airflow.

[0005] This invention also provides a 3D printer with uniform airflow.

[0006] To achieve the above objectives, the present invention adopts the following solution:

[0007] The first aspect of this utility model provides an air guiding structure for a 3D printer, comprising: a base having a cavity, the base having an air inlet that communicates with the cavity, an air guide cover connected to the base, the air guide cover having multiple air outlets, and the air guide cover having multiple air guide grooves that guide the airflow in the cavity toward the air outlets, each of the air guide grooves being independently arranged, the air guide grooves being arranged in a progressive manner, and the cross-sectional area of ​​the air guide grooves gradually decreasing from one side of the cavity toward the air outlets.

[0008] The top of the air guide trough is circular, the bottom of the air guide trough is quadrilateral, and the trough wall extends gradually from the bottom to the top.

[0009] The bottom of the air guide trough is square, and the air guide troughs are arranged in an array. The edges of two adjacent air guide troughs are connected and transitioned by a smooth surface.

[0010] The air guide trough is set at an acute angle.

[0011] The air guide trough is divided into four equal parts, and the four walls of the air guide trough gradually extend from the bottom to the top.

[0012] The base includes a base plate with an air inlet and a cover plate connected to it. The cover plate has a notch on one side and the air guide cover can be inserted into the notch to close it. The base plate, cover plate and air guide cover cooperate to form the cavity.

[0013] The base plate and the cover plate are detachably connected, and the air guide cover and the cover plate are detachably connected.

[0014] The base and the air guide cover are integrally formed.

[0015] The air guide cover is a one-piece molded structure.

[0016] The second aspect of this utility model provides a 3D printer, including: a printer body, wherein the printer body is connected to the air guide structure of the 3D printer as described above.

[0017] Compared with existing technologies, this utility model has the following advantages: When air is needed, a fan or air pump is installed on the base, and air is blown into the cavity from the air inlet. At this time, the air gradually enters the air guide channel. Due to the short distance between the cavity and the air guide channel, the airflow is guaranteed to be free from turbulence. Moreover, each air guide channel is set independently, and the flow of air in different air guide channels does not interfere with each other. Each air guide channel can independently guide a portion of the airflow, avoiding collisions and mixing of airflows between multiple air guide channels, and reducing turbulence caused by airflow mixing. At the same time, since the cross-sectional area of ​​the air guide channel gradually decreases from one side of the cavity to the air outlet, this structure makes the airflow in the air guide channel more stable. Furthermore, since the air guide channel guides the airflow gradually, it avoids turbulence caused by the airflow hitting the air guide plate. This ensures that the airflow blown from the air outlet into the 3D printer is parallel, guiding the smoke and carbon deposits to flow in the predetermined direction to the outside of the 3D printer, preventing the diffusion of smoke and carbon deposits. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the air guide structure of the 3D printer of this utility model;

[0019] Figure 2 This is the second schematic diagram of the air guide structure of the 3D printer of this utility model;

[0020] Figure 3 This is an exploded view of the air guide structure of the 3D printer of this utility model;

[0021] Figure 4 This is a schematic diagram of the base plate and cover plate of the air guide structure of the 3D printer of this utility model.

[0022] Figure 5 This is one of the structural schematic diagrams of the air guide cover of the air guide structure of the 3D printer of this utility model;

[0023] Figure 6 for Figure 5 Enlarged view of region A in the middle;

[0024] Figure 7 This is the second schematic diagram of the air guide cover of the air guide structure of the 3D printer of this utility model;

[0025] Figure 8 This is a cross-sectional view of the 3D printer of this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] like Figures 1 to 8 As shown, a first aspect provides an air guiding structure for a 3D printer, comprising: a base 1 having a cavity 11, the base 1 having an air inlet 12 that communicates with the cavity 11, an air guide cover 2 connected to the base 1, the air guide cover 2 having a plurality of air outlets 21, and the air guide cover 2 having a plurality of air guide grooves 22 that guide the flow of air from the cavity 11 toward the air outlets 21, each of the air guide grooves 22 being independently arranged, the air guide grooves 22 being arranged in a progressive manner, and the cross-sectional area of ​​the air guide grooves 22 gradually decreasing from one side of the cavity 11 toward the air outlets 21.

[0029] When airflow is required, a fan or air pump is installed on the base 1. Air is blown into the cavity 11 from the air inlet 12. At this time, the air gradually enters the air guide slot 22. Since the distance between the cavity 11 and the air guide slot 22 is short, it ensures that the airflow will not be turbulent. Moreover, each air guide slot 22 is set independently, and the flow of air in different air guide slots 22 does not interfere with each other. Each air guide slot 22 can independently guide a part of the airflow, avoiding the collision and mixing of airflow between multiple air guide slots 22, reducing the turbulence caused by airflow mixing. At the same time, since the cross-sectional area of ​​the air guide slot 22 gradually decreases from one side of the cavity 11 to the air outlet 21, this structure makes the airflow in the air guide slot 22 more stable. In addition, since the air guide slot 22 guides the airflow gradually, it avoids the turbulence caused by the airflow hitting the air guide plate. This makes the airflow blown out of the air outlet 21 into the 3D printer parallel, guiding the smoke and carbon to flow in the predetermined direction to the outside of the 3D printer, avoiding the diffusion of smoke and carbon. The design of the progressive air guide slot 22 allows the airflow to flow more smoothly after entering the air guide slot 22.

[0030] The top of the air guide trough 22 is circular, and the bottom of the air guide trough 22 is quadrilateral. The trough wall 221 of the air guide trough 22 extends gradually from the bottom to the top. The unique shape of the air guide trough 22, with its circular top and quadrilateral bottom with a larger area than the top, allows the airflow to be distributed more evenly after entering the air guide trough 22. When the air flows from the bottom towards the air outlet 21, the airflow gradually decreases due to the quadrilateral shape and larger area at the bottom, allowing the airflow to pass more smoothly and the airflow blowing out of the air outlet 21 into the 3D printer to be more stable.

[0031] The bottom of the air guide slot 22 is square, and the air guide slots 22 are arranged in an array. The edges of two adjacent air guide slots 22 are connected and transitioned by a smooth surface 23. The thickness of the smooth surface 23 is much smaller than the width of the bottom of the air guide slot 22. This design can reduce the obstruction to the airflow, allowing the airflow to be smoothly guided into the air guide slot 22.

[0032] The air guide slots 22 are set at acute angles and arranged in a gradual manner, which makes the airflow more concentrated and smoother when it passes through.

[0033] The air guide slot 22 is divided into four equal parts, and the four slot walls 221 of the air guide slot 22 all extend gradually from the bottom to the top. This structure allows the airflow to flow evenly upwards along the four inclined slot walls after entering the air guide slot 22, and converge at the top. This makes the airflow smoother when it is blown out of the air outlet 21 into the 3D printer.

[0034] The base 1 includes a base plate 13, on which the air inlet 12 is provided, and a cover plate 14 is connected to the base plate 13. A notch 141 is provided on one side of the cover plate 14, and the air guide cover 2 can be inserted into the notch 141 to close it. The base plate 13, cover plate 14, and air guide cover 2 cooperate to form the cavity 11. The base plate 13 has mounting holes for easy connection to a 3D printer, and the notch 141 facilitates the positioning and installation of the air guide cover 2.

[0035] The base plate 13 and the cover plate 14 are detachably connected, and the air guide cover 2 and the cover plate 14 are detachably connected, which facilitates installation and makes it easy to replace when damaged, thus reducing costs.

[0036] The base 1 and the air guide cover 2 are integrally formed, which is convenient for processing.

[0037] The air guide cover 2 is a one-piece molded structure, which is easy to process.

[0038] The second aspect of this utility model provides a 3D printer, including: a printer body, on which a 3D printer air guide structure 300 as described above is connected. When air is discharged using the air guide structure 300, a fan or air pump is installed on the base 1, and air is blown into the cavity 11 from the air inlet 12. At this time, the air gradually enters the air guide groove 22. Because the distance between the cavity 11 and the air guide groove 22 is short, it ensures that the airflow will not be turbulent, and each air guide groove 22 is set independently, so the flow of air in different air guide grooves 22 does not interfere with each other. Each air guide groove 22 can independently guide a part of the airflow, avoiding the collision and mixing of airflow between multiple air guide grooves 22, reducing airflow. This design reduces turbulence caused by airflow mixing. Furthermore, because the cross-sectional area of ​​the air guide duct 22 gradually decreases from the cavity 11 towards the outlet 21, this structure makes the airflow within the air guide duct 22 smoother. Moreover, the air guide duct 22 guides the airflow gradually, avoiding turbulence caused by airflow hitting the air guide plate. This ensures that the airflow blowing from the outlet 21 into the 3D printer is parallel, guiding dust and carbides in a predetermined direction to the outside of the 3D printer, preventing the diffusion of dust and carbides. The gradual design of the air guide duct 22 allows for a smoother airflow after entering it.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An air guide structure for a 3D printer, characterized in that, include: A seat (1) with a cavity (11) is provided with an air inlet (12) that can communicate with the cavity (11). A guide cover (2) is also connected to the seat (1). A plurality of air outlets (21) are provided on the guide cover (2). A plurality of air guide grooves (22) are also provided on the guide cover (2) that can guide the flow of air in the cavity (11) toward the air outlets (21). Each air guide groove (22) is independently provided. The air guide grooves (22) are arranged in a progressive manner, and the cross-sectional area of ​​the air guide grooves (22) gradually decreases from one side of the cavity (11) toward the air outlets (21).

2. The air guide structure of the 3D printer according to claim 1, characterized in that, The top of the air guide groove (22) is circular, the bottom of the air guide groove (22) is quadrilateral, and the groove wall (221) of the air guide groove (22) extends gradually from the bottom to the top.

3. The air guide structure of the 3D printer according to claim 2, characterized in that, The bottom of the air guide groove (22) is square, and the air guide grooves (22) are arranged in an array. The edges of two adjacent air guide grooves (22) are connected and transitioned by a smooth surface (23).

4. The air guide structure of the 3D printer according to claim 2, characterized in that, The air guide trough (22) is set at an acute angle.

5. The air guide structure of the 3D printer according to claim 2, 3, or 4, characterized in that, The air guide groove (22) is arranged in four equal parts, and the four groove walls (221) of the air guide groove (22) all extend gradually from the bottom to the top.

6. The air guide structure of the 3D printer according to claim 1, characterized in that, The base (1) includes a base plate (13), the base plate (13) is provided with the air inlet (12), and a cover plate (14) is connected to the base plate (13). A notch (141) is provided on one side of the cover plate (14), and the air guide cover (2) can be inserted into the notch (141) to close the notch (141). The base plate (13), the cover plate (14) and the air guide cover (2) cooperate to form the cavity (11).

7. The air guide structure of the 3D printer according to claim 6, characterized in that, The base plate (13) and the cover plate (14) are detachably connected, and the air guide cover (2) and the cover plate (14) are detachably connected.

8. The air guide structure of the 3D printer according to claim 6, characterized in that, The base (1) and the air guide cover (2) are integrally formed.

9. The air guide structure of the 3D printer according to claim 1, characterized in that, The air guide cover (2) is an integral structure formed in one piece.

10. A 3D printer, characterized in that, include: The printer body is equipped with an air guide structure (300) for the 3D printer as described in any one of claims 1 to 9.

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