Printing head cooling mechanism of 3D printer

Abstract

The printing head cooling mechanism of the 3D printer comprises a main body, a first cooling assembly, a second cooling assembly, a first flow guide assembly, a third cooling assembly and a second flow guide assembly, a printing head is installed on the main body, and the printing head is provided with a feeding end and a discharging end; the first cooling assembly, the second cooling assembly and the third cooling assembly are provided with a first air outlet, a second air outlet and a third air outlet correspondingly. The first air outlet is formed in one side of the feeding end; one end of the first flow guide assembly communicates with the second air outlet, and the other end of the first flow guide assembly is arranged at the discharging end; one end of the second flow guide assembly communicates with the third air outlet, and the other end of the second flow guide assembly is arranged at the discharging end. The problems that an existing printing head adopts simple air cooling, so that the local temperature difference of the printing head is too large, the temperature is not uniform, and the printing effect is affected are solved.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and in particular to a print head cooling mechanism of a 3D printer. Background Art

[0002] In 3D printing, print head cooling is crucial for ensuring print quality and preventing thermal degradation of materials. Heat generated by the print head comes from multiple sources, including laser melting, material melting, and heat exchange with the surrounding environment during the printing process. Therefore, an effective cooling system is crucial to ensuring proper print head operation and improving print quality.

[0003] Currently, a simple air cooling method is usually adopted for the print head, which easily causes excessive local temperature difference of the print head, thereby affecting the printing effect. Utility Model Content

[0004] The main purpose of this application is to provide a print head cooling mechanism for a 3D printer, aiming to solve the problem that the existing print head adopts simple air cooling, which leads to excessive local temperature difference and uneven temperature of the print head and affects the printing effect.

[0005] To achieve the above objectives, the present application provides a print head cooling mechanism for a 3D printer, comprising: a main body, a first cooling assembly, a second cooling assembly, a first flow guide assembly, a third cooling assembly, and a second flow guide assembly; a print head is mounted on the main body, the print head having a feed end and a discharge end, the feed end being connected to a feed pipe of the 3D printer; a first air outlet is provided on the first cooling assembly, a second air outlet is provided on the second cooling assembly, and a third air outlet is provided on the third cooling assembly, respectively; the first air outlet is provided on one side of the feed end; the first flow guide assembly and the second flow guide assembly are both connected structures with openings at both ends;

[0006] One end of the first flow guide component is connected to the second air outlet, and the other end of the first flow guide component is arranged at the discharge end;

[0007] One end of the second flow guide component is communicated with the third air outlet, and the other end of the second flow guide component is arranged at the discharge end.

[0008] Optionally, it further includes a first connecting component, a feed hole is opened on the first connecting component, the feed hole passes through the first connecting component, one end of the feed hole is connected to the feed end, and the other end of the feed hole is connected to the feed pipe of the 3D printer, and the first air outlet is arranged opposite to the outer side wall of the first connecting component.

[0009] Optionally, a plurality of cooling grooves are provided on the outer side wall of the first connecting component, and the plurality of cooling grooves are evenly distributed on the outer side wall of the first connecting component.

[0010] Optionally, the cooling groove is annular.

[0011] Optionally, a second connecting component is further included, and the main body is connected to the second connecting component; wherein the second connecting component is used to install the main body on a 3D printer.

[0012] Optionally, a ventilation hole is provided on the second connecting component, and the ventilation hole is arranged opposite to the first cooling component.

[0013] Optionally, the first cooling component, the second cooling component and the third cooling component are all fans.

[0014] A print head cooling mechanism of a 3D printer proposed in an embodiment of the present application includes: a main body, a first cooling component, a second cooling component, a first guide component, a third cooling component and a second guide component, the print head is installed on the main body, the print head has a feed end and a discharge end, the feed end is connected to the feed pipe of the 3D printer, the first cooling component, the second cooling component and the third cooling component are respectively provided with a first air outlet, a second air outlet and a third air outlet; the first air outlet is provided on one side of the feed end, the first guide component and the second guide component are both connecting structures with openings at both ends; one end of the first guide component is connected to the second air outlet, and the other end of the first guide component is provided at the discharge end; one end of the second guide component is connected to the third air outlet, and the other end of the second guide component is provided at the discharge end. The raw materials entering the print head are subjected to primary cooling treatment through the first cooling component, and the print head is subjected to secondary cooling treatment through the second cooling component and the third cooling component to ensure that the temperature of the print head is evenly reduced, thereby solving the problem that the existing print head uses simple air cooling, resulting in excessive local temperature differences in the print head and uneven temperature, which affects the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the main structure of an embodiment of the present application;

[0017] Figure 3 This is a schematic diagram of the top view of the structure of an embodiment of the present application;

[0018] Figure 4 This is a left-side structural diagram of an embodiment of the present application;

[0019] Figure 5 This is a schematic diagram of the rear structure of an embodiment of the present application;

[0020] Figure 6 for Figure 2 AA cross-sectional structural diagram;

[0021] Figure 7 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB;

[0022] Figure 8 This is a structural diagram of the first connecting component in an embodiment of the present application;

[0023] Legend: 1-first cooling component, 2-second cooling component, 3-first guide component, 301-first guide hole, 4-third cooling component, 5-second guide component, 501-second guide hole, 6-first connecting component, 601-cooling groove, 602-feed hole, 7-second connecting component, 701-ventilation port, 8-print head.

[0024] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 , a print head cooling mechanism of a 3D printer includes: a main body, a first cooling component 1, a second cooling component 2, a first guide component 3, a third cooling component 4 and a second guide component 5, a print head 8 is installed on the main body, the print head has a feed end and a discharge end, the feed end is connected to the feed pipe of the 3D printer, and the first cooling component 1, the second cooling component 2 and the third cooling component 4 are respectively provided with a first air outlet, a second air outlet and a third air outlet; the first air outlet is arranged on one side of the feed end, and the first guide component 3 and the second guide component 5 are both communicating structures with openings at both ends; one end of the first guide component 3 is connected to the second air outlet, and the other end of the first guide component 3 is arranged at the discharge end; one end of the second guide component 5 is connected to the third air outlet, and the other end of the second guide component 5 is arranged at the discharge end. In this embodiment, the first cooling component 1, the second cooling component 2 and the third cooling component 4 can all be fans. The first cooling component 1 performs a primary cooling treatment on the raw materials entering the print head 8, and the second cooling component 2 and the third cooling component 4 perform a secondary cooling treatment on the print head 8 to ensure that the temperature of the print head 8 is evenly reduced, thereby solving the problem that the existing print head adopts simple air cooling, resulting in excessive local temperature difference in the print head and uneven temperature, which affects the printing effect.

[0030] This embodiment further includes a first connecting component 6 having a feed hole 602 formed therein. The feed hole 602 extends through the first connecting component 6, one end of the feed hole 602 communicates with the feed end, and the other end of the feed hole 602 communicates with the feed pipe of the 3D printer. The first air outlet is disposed opposite the outer wall of the first connecting component 6. The first connecting component 6 may be made of metal. Air is supplied through the first cooling component 1 and blown out through the first air outlet, cooling the surface of the first connecting component 6 and reducing the temperature of the raw material passing through the feed hole 602. This achieves a primary cooling process for the raw material entering the print head 8, thereby reducing the heat absorbed by the print head 8 and thus lowering the temperature of the print head 8.

[0031] In this embodiment, a plurality of cooling grooves 601 are provided on the outer wall of the first connecting assembly 6, and the plurality of cooling grooves 601 are evenly distributed on the outer wall of the first connecting assembly 6. The cooling grooves 601 can make the air flow through the outer wall of the first connecting assembly 6 more uniform, thereby uniformly reducing the temperature of the raw materials passing through the feed hole 602.

[0032] In this embodiment, the cooling groove 601 is annular, which allows the wind flowing through the outer wall of the first connecting component 6 to wrap around the first connecting component 6 along the annular cooling groove 601, thereby further ensuring uniformity in reducing the temperature of the raw materials.

[0033] This embodiment also includes a second connecting assembly 7, to which the main body is connected; wherein the second connecting assembly 7 is used to mount the main body on a 3D printer. Ventilation holes 701 are defined in the second connecting assembly 7, and are disposed opposite the first cooling assembly 1. The second connecting assembly 7 may be a mounting plate, which is used to mount the main body on the 3D printer. The cooling air passing through the first connecting assembly 6 is discharged through the vents 701, thereby achieving heat dissipation.

[0034] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A print head cooling mechanism for a 3D printer, characterized in that: include: A main body, a first cooling component (1), a second cooling component (2), a first flow guide component (3), a third cooling component (4) and a second flow guide component (5); a print head (8) is mounted on the main body; the print head has a feed end and a discharge end; the feed end is connected to a feed pipe of a 3D printer; the first cooling component (1), the second cooling component (2) and the third cooling component (4) are respectively provided with a first air outlet, a second air outlet and a third air outlet; the first air outlet is arranged on one side of the feed end; the first flow guide component (3) and the second flow guide component (5) are both connected structures with openings at both ends; One end of the first flow guide component (3) is in communication with the second air outlet, and the other end of the first flow guide component (3) is arranged at the discharge end; One end of the second flow guide component (5) is in communication with the third air outlet, and the other end of the second flow guide component (5) is arranged at the discharge end.

2. The print head cooling mechanism of a 3D printer as claimed in claim 1, characterized in that: The invention also comprises a first connecting component (6), wherein a feed hole (602) is provided on the first connecting component (6), wherein the feed hole (602) passes through the first connecting component (6), wherein one end of the feed hole (602) is connected to the feed end, and the other end of the feed hole (602) is connected to a feed pipe of the 3D printer, and the first air outlet is arranged opposite to the outer side wall of the first connecting component (6).

3. The print head cooling mechanism of a 3D printer as claimed in claim 2, characterized in that: A plurality of cooling grooves (601) are arranged on the outer side wall of the first connecting component (6), and the plurality of cooling grooves (601) are evenly distributed on the outer side wall of the first connecting component (6).

4. The print head cooling mechanism of the 3D printer as claimed in claim 3, characterized in that: The cooling groove (601) is ring-shaped.

5. The print head cooling mechanism of a 3D printer as claimed in claim 1, characterized in that: It also comprises a second connecting component (7), the main body being connected to the second connecting component (7); wherein the second connecting component (7) is used to install the main body on a 3D printer.

6. The print head cooling mechanism of a 3D printer as claimed in claim 5, characterized in that: The second connecting component (7) is provided with a ventilation hole (701), and the ventilation hole (701) is arranged opposite to the first cooling component (1).

7. The print head cooling mechanism of a 3D printer as claimed in claim 1, characterized in that: The first cooling component (1), the second cooling component (2) and the third cooling component (4) are all fans.

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