A heat dissipation front cover for a 3D printer tool head

Abstract

The utility model provides a heat dissipation front cover of a tool head of a 3D printer, which relates to the field of printing components, including a front cover shell, a component heat dissipation fan, a hot end heat dissipation fan, and a cooling air nozzle; the component heat dissipation fan is fixed to the upper end side of the front cover shell by screws, the air outlet end of the component heat dissipation fan is opposite to the upper end of the guide air duct on the front cover shell, the cooling air nozzle is clamped on the lower end of the guide air duct by a buckle, the hot end heat dissipation fan is fixed to the lower end side of the front cover shell by screws, and the air inlet end of the hot end heat dissipation fan is installed with a hot end heat dissipation guide body. The air duct of the component heat dissipation fan is extended to make the turning of the air flow smoother. By setting a detachable cooling air nozzle, the use cost is reduced. In order to balance the cooling air flow at the air outlet, the air duct is unequally divided to balance the air outlet of each channel and gather towards the center of the nozzle. The problem of uneven heat dissipation of components and blockage of the cooling air nozzle caused by stacking of materials during printing is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing components, and more specifically, particularly to a heat dissipation front cover of a tool head of a 3D printer. Background Art

[0002] The existing FDM 3D printer tool head generally consists of two parts, a main body and a front cover; the main body includes a 3D printing hot end and an extruder, wherein the hot end is also equipped with a cooling fan to dissipate heat from the hot end and prevent heat from being transferred from the heating block to the extruder, thereby avoiding premature softening of the 3D printing consumables and causing blockage of the extruder; and the front cover only includes a component cooling fan and an air outlet nozzle; due to the uneven airflow at the outlet of the component cooling fan, the air volume at the outlet close to the straight shell side of the fan is significantly larger than that at other parts, resulting in a difference in air volume at the cooling outlet, which is then guided and ultimately causes uneven heat dissipation of the component, and material stacking occurs during 3D printing, causing the cooling nozzle to be blocked. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a heat dissipation front cover of a 3D printer tool head to solve the problem of uneven heat dissipation of components and blockage of cooling air nozzles caused by material piling during printing.

[0004] In a first aspect of the present disclosure, a heat dissipation front cover of a 3D printer tool head is provided, comprising a front cover shell, a component heat dissipation fan, a hot end heat dissipation fan, and a cooling air nozzle;

[0005] The component cooling fan is fixed to the upper end side of the front cover shell by screws, the air outlet end of the component cooling fan is opposite to the upper end of the guide air duct on the front cover shell, the guide air duct and the front cover shell are an integrated structure, the cooling air nozzle is clamped on the lower end of the guide air duct by a buckle, the hot end cooling fan is fixed to the lower end side of the front cover shell by screws, and the air inlet end of the hot end cooling fan is installed with a hot end cooling guide body, and the ventilation duct of the hot end cooling guide body is adapted to the shape of the hot end heat sink.

[0006] Furthermore, upper magnet seats are fixed at the upper corners of the front cover shell body by screws, and an integrated lower magnet seat is provided at the lower corners.

[0007] Furthermore, magnetic blocks are respectively mounted in the circular holes of the upper magnet seat and the lower magnet seat.

[0008] The utility model at least has the following beneficial effects:

[0009] 1. The utility model installs the hot end cooling fan on the front cover shell, so when the hot end is disassembled and replaced, there is no need to disassemble the hot end cooling fan from the original hot end or the main body, which can speed up the disassembly and replacement of the hot end.

[0010] 2. The utility model extends the air duct of the component cooling fan by setting a guide air duct, making the turning of the air flow smoother, increasing the air output, and diverting the air volume. By dividing the air duct unequally, the air output of each channel is balanced and gathered to the center of the nozzle, so that the air flow is balanced at the cooling outlet, thereby improving the cooling effect of the component.

[0011] 3. The utility model divides the cooling airflow of the hot end cooling fan by setting a hot end heat dissipation guide body, adapts according to the shape of the hot end heat sink, and can also divide a part of the airflow to dissipate the heat of the upper extruder to avoid consumables clogging

[0012] 4. The utility model provides a detachable cooling nozzle, which is connected to the lower end of the guide air duct by a buckle, so as to facilitate later replacement and reduce the use cost. It can also solve the problem of cooling nozzle blockage caused by material piling during 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 This utility model Figure 1 Schematic diagram of the rear side perspective structure.

[0015] Figure 3 This utility model Figure 2 Schematic diagram of the structure when the heat dissipation guide body at the hot end and the two sets of upper magnet seats are removed.

[0016] Figure 4 This utility model Figure 3 Schematic diagram of the rear side perspective structure.

[0017] Figure 5 This utility model Figure 3 Schematic diagram of the structure when the middle cooling nozzle is removed.

[0018] Figure 6 It is a structural schematic diagram of the cooling air nozzle in the utility model.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Front cover shell; 101. Air guide duct; 2. Component cooling fan; 3. Hot end cooling fan; 301. Hot end cooling guide body; 4. Upper magnet seat; 5. Lower magnet seat; 6. Cooling nozzle. DETAILED DESCRIPTION

[0021] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0022] Example:

[0023] As attached Figure 1 To Attachment Figure 6 As shown:

[0024] The utility model provides a heat dissipation front cover of a 3D printer tool head, comprising a front cover shell 1, a component heat dissipation fan 2, a hot end heat dissipation fan 3, and a cooling air nozzle 6;

[0025] The component cooling fan 2 is fixed to the upper end side of the front cover shell 1 by screws, the air outlet end of the component cooling fan 2 is opposite to the upper end of the guide air duct 101 on the front cover shell 1, the guide air duct 101 and the front cover shell 1 are an integrated structure, the cooling air nozzle 6 is mounted on the lower end of the guide air duct 101 by a snap buckle, the hot end cooling fan 3 is fixed to the lower end side of the front cover shell 1 by screws, and the air inlet end of the hot end cooling fan 3 is installed with a hot end cooling guide body 301, and the ventilation duct of the hot end cooling guide body 301 is adapted to the shape of the hot end heat sink.

[0026] In the present disclosure, Figure 3 and Figure 4 As shown, an upper magnet seat 4 is fixed to the upper corner of the front cover shell 1 by screws, and an integrated lower magnet seat 5 is provided at the lower corner. Magnetic blocks are respectively clamped in the circular holes of the upper magnet seat 4 and the lower magnet seat 5, which can fix the front cover and facilitate disassembly by cooperating with the magnets of the main body.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In the utility model, by installing the hot end cooling fan 3 on the front cover shell 1, when the hot end is disassembled and replaced, there is no need to disassemble the hot end cooling fan from the original hot end or the main body, which can speed up the disassembly and replacement of the hot end; by setting the hot end heat dissipation guide body 301, the cooling airflow of the hot end cooling fan is diverted and adapted according to the shape of the hot end heat sink, and at the same time, a part of the airflow can be separated to dissipate the heat of the extruder at the upper end to avoid clogging of consumables; by setting the guide air duct 101, the air duct of the component cooling fan 2 is extended, the turning of the airflow is smoother, the air volume is increased, and the air volume is diverted. By dividing the air duct unequally, the air volume of each channel is balanced and gathered to the center of the nozzle, so that the airflow is balanced at the cooling outlet, thereby improving the cooling effect of the component; by setting a detachable cooling air nozzle 6, it is connected to the lower end of the guide air duct 101 by a buckle, which is convenient for later replacement and reduces the use cost, and can also solve the problem of clogging of the cooling air nozzle 6 caused by stacking during 3D printing.

[0029] In this article, there are a few points to note:

[0030] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0031] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0032] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A heat dissipation front cover of a 3D printer tool head, comprising a front cover shell (1), a component heat dissipation fan (2), a hot end heat dissipation fan (3), and a cooling air nozzle (6); Features: The component cooling fan (2) is fixed to the upper end side of the front cover shell (1) by screws, the air outlet end of the component cooling fan (2) is opposite to the upper end of the guide air duct (101) on the front cover shell (1), the guide air duct (101) and the front cover shell (1) are an integrated structure, the cooling air nozzle (6) is mounted on the lower end of the guide air duct (101) by snap-fitting, the hot end cooling fan (3) is fixed to the lower end side of the front cover shell (1) by screws, and the hot end cooling guide body (301) is installed at the air inlet end of the hot end cooling fan (3), and the ventilation duct of the hot end cooling guide body (301) is adapted to the shape of the hot end heat sink.

2. A heat dissipation front cover of a 3D printer tool head according to claim 1, characterized in that: Upper magnet seats (4) are fixed at the upper corners of the front cover shell (1) by screws, and an integrated lower magnet seat (5) is provided at the lower corners.

3. A heat dissipation front cover of a 3D printer tool head according to claim 2, characterized in that: Magnetic blocks are respectively mounted in the circular holes of the upper magnet seat (4) and the lower magnet seat (5).

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