Preheating pipe for 3D printer nozzle

Abstract

The utility model relates to a preheating pipe for a 3D printer nozzle, the preheating pipe is communicated with the feed end of the 3D printer nozzle, a plurality of melting assisting parts are arranged in the preheating pipe along the axial direction of the preheating pipe, and any two adjacent melting assisting parts are arranged in a spaced and axially staggered manner. The utility model aims to solve or at least alleviate the problem that the preheating effect of the existing preheating pipe is limited, and provides the preheating pipe for the nozzle of the 3D printer.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printers, and in particular relates to a preheating tube for a nozzle of a 3D printer. Background Art

[0002] 3D printing does not make parts by subtracting materials like traditional machining, but by adding materials. Parts are made using a 3D printer based on a digital model. The 3D printer melts the consumables and extrude them from the printer nozzle. After the melted consumables leave the printer nozzle, they become solid, thus achieving 3D printing of parts.

[0003] The filament enters from the larger inlet hole at the top of the nozzle, is heated and melted in the nozzle connected to an external heat source, and then extruded from the smaller outlet hole at the end of the nozzle.

[0004] Most of the consumables for 3D printing enter the feed end of the nozzle directly. This operation has a low melting efficiency for the consumables. In order to improve the melting efficiency, a preheating tube is set at the feed end of the nozzle. However, the current preheating tube is only in the shape of a round tube, and the preheating effect is limited. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art, solve or at least alleviate the problem that the current preheating tube has a limited preheating effect, and provide a preheating tube for a 3D printer nozzle.

[0006] The utility model is realized by the following technical solutions:

[0007] A preheating tube for a 3D printer nozzle, the preheating tube is connected to the feed end of the 3D printer nozzle, a plurality of melting-assisting parts are arranged in the preheating tube along its axial direction, and any two adjacent melting-assisting parts are spaced and axially staggered.

[0008] In order to further realize the utility model, the following technical solutions can be preferably selected:

[0009] Preferably, the melting-assisting portion is in the shape of a flat plate arranged along the radial direction of the preheating tube, both sides of the melting-assisting portion are connected to the inner wall of the preheating tube, and two adjacent melting-assisting portions are perpendicular to each other.

[0010] Preferably, the melting-assisting part includes a melting-assisting tube and a melting-assisting plate. The melting-assisting tube is arranged in the middle of the preheating tube along the axial direction of the preheating tube, and the melting-assisting plate is arranged radially along the melting-assisting tube. Both sides of the melting-assisting plate are respectively connected to the outer wall of the melting-assisting plate and the inner wall of the preheating tube. Several melting-assisting plates are arranged at intervals along the outer wall of the melting-assisting tube, and the melting-assisting plates of any two adjacent melting-assisting parts are staggered.

[0011] Preferably, the melting-aid section includes melting-aid blocks, and a plurality of the melting-aid blocks are arranged at intervals along the inner wall of the preheating tube. The cross-section of the melting-aid blocks is fan-shaped, the rounded edge surfaces of the melting-aid blocks are connected to the inner wall of the preheating tube, and the sharp edges of the melting-aid blocks face the axis of the preheating tube. The melting-aid blocks of any two adjacent melting-aid sections are staggered.

[0012] Preferably, the melting-assisting portion is in the form of a spiral plate, and the spiral periphery of the melting-assisting portion is connected to the inner wall of the preheating tube.

[0013] Preferably, the melting-assisting portion includes a melting-assisting plate, which is arranged perpendicularly to the axis of the preheating tube, and the periphery of the melting-assisting plate is connected to the inner wall of the preheating tube. A plurality of long strip-shaped melting-assisting grooves are arranged on the melting-assisting plate, and the melting-assisting grooves on the melting-assisting plate are arranged in parallel, and the melting-assisting grooves on any two adjacent melting-assisting plates are perpendicular to each other.

[0014] Preferably, the melting-assisting part includes a melting-assisting plate, which is arranged perpendicular to the axis of the preheating tube, and the periphery of the melting-assisting plate is connected to the inner wall of the preheating tube. A plurality of melting-assisting holes are longitudinally arranged on the melting-assisting plate, and the melting-assisting holes on any two adjacent melting-assisting plates do not overlap.

[0015] Preferably, the preheating tube and the melting-aiding portion are integrally formed or detachably connected.

[0016] Through the above technical solution, the beneficial effects of the utility model are:

[0017] The nozzle of the utility model is provided with a melting-assisting part. When the consumables are heated and melted in the preheating tube, the melting-assisting part can separate the melted consumables from the unmelted consumables, and directly heat the unmelted consumables after separation through the melting-assisting part, which can further improve the melting efficiency. In addition, the utility model is provided with multiple staggered melting-assisting parts, which further improves the separation effect of the melted consumables, thereby further improving the overall melting effect of the consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural cross-sectional views of the utility model;

[0019] Figure 2 This is one of the top views of the utility model;

[0020] Figure 3 This is the second structural cross-sectional view of the utility model;

[0021] Figure 4 This is the second top view of the utility model;

[0022] Figure 5 This is the third structural cross-sectional view of the utility model;

[0023] Figure 6 This is the third top view of the utility model;

[0024] Figure 7 This is the fourth structural cross-sectional view of the utility model;

[0025] Figure 8 This is the fourth top view of the utility model;

[0026] Fig. 9 This is the fifth structural cross-sectional view of the utility model;

[0027] Fig.10 This is the fifth top view of the utility model;

[0028] Fig.11 This is the sixth structural cross-sectional view of the utility model;

[0029] Fig.12 This is the sixth top view of the utility model;

[0030] Among them: 1-preheating tube; 2-melting aid part; 201-melting aid tube; 202-melting aid plate; 203-melting aid block; 204-melting aid groove; 205-melting aid hole. DETAILED DESCRIPTION

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0033] like Figure 1-Figure 11 As shown, a preheating tube for a 3D printer nozzle, the preheating tube 1 is connected to the feed end of the 3D printer nozzle, a plurality of melting-assisting parts 2 are arranged in the preheating tube 1 along its axial direction, and any two adjacent melting-assisting parts 2 are spaced apart and axially staggered.

[0034] The preheating tube 1 and the melting-aiding part 2 are integrally formed or detachably connected.

[0035] The nozzle of the utility model is provided with a melting-assisting part 2. When the consumables are heated and melted in the preheating tube 1, the melting-assisting part 2 can separate the melted consumables from the unmelted consumables, and directly heat the unmelted consumables after separation through the melting-assisting part 2, which can further improve the melting efficiency. In addition, the utility model is provided with a plurality of staggered melting-assisting parts 2, which further improves the separation effect of the melted consumables, thereby further improving the overall melting effect of the consumables. Embodiment 2:

[0036] like Figure 1 and Figure 2 As shown, the melting-aiding portion 2 is in the shape of a flat plate arranged along the radial direction of the preheating tube 1, and both sides of the melting-aiding portion 2 are connected to the inner wall of the preheating tube 1. In this embodiment, the melting-aiding portions 2 are two perpendicular to each other. Embodiment 3:

[0037] like Figure 3 and Figure 4 As shown, the melting-assisting part 2 includes a melting-assisting tube 201 and a melting-assisting plate 202. The melting-assisting tube 201 is axially arranged in the middle of the preheating tube 1, and the melting-assisting plate 202 is radially arranged along the melting-assisting tube 201. Both sides of the melting-assisting plate 202 are respectively connected to the outer wall of the melting-assisting plate 202 and the inner wall of the preheating tube 1. Several melting-assisting plates 202 are arranged at intervals along the outer wall of the melting-assisting tube 201, and the melting-assisting plates 202 of any two adjacent melting-assisting parts 2 are staggered.

[0038] In this embodiment, the melting-assisting tube 201 is coaxially arranged with the preheating tube 1 , and the number of melting-assisting plates 202 is three and evenly distributed along the circumference of the outer wall of the melting-assisting tube 201 . Embodiment 4:

[0039] like Figure 5 and Figure 6 As shown, the melting-aid section 2 includes melting-aid blocks 203, and a plurality of melting-aid blocks 203 are arranged at intervals along the inner wall of the preheating tube 1. The cross-section of the melting-aid blocks 203 is fan-shaped, and the rounded edge surface of the melting-aid blocks 203 is connected to the inner wall of the preheating tube 1. The sharp edges of the melting-aid blocks 203 face the axis of the preheating tube 1, and the melting blocks 203 of any two adjacent melting-aid sections 2 are staggered. Embodiment 5:

[0040] like Figure 7 and Figure 8 As shown, the melting-assisting portion 2 is a spiral plate, and the spiral periphery of the melting-assisting portion 2 is connected to the inner wall of the preheating tube 1 . Embodiment 6:

[0041] like Fig. 9 and Fig.10As shown, the melting-assisting portion 2 includes a melting-assisting plate 202, which is arranged perpendicularly to the axis of the preheating tube 1, and the periphery of the melting-assisting plate 202 is connected to the inner wall of the preheating tube 1. A plurality of long strip-shaped melting-assisting grooves 204 are arranged on the melting-assisting plate 202, and the melting-assisting grooves 204 on the melting-assisting plate 202 are arranged in parallel, and the melting-assisting grooves 204 on any two adjacent melting-assisting plates 202 are perpendicular to each other.

[0042] In this embodiment, two melting-assisting grooves 204 that are arranged in mirror image to each other are provided on the melting-assisting plate 202 . The melting-assisting grooves 204 are linear in inner side and convex arc in outer side. Embodiment 7:

[0043] like Fig.11 and Fig.12 As shown, the melting-assisting part 2 includes a melting-assisting plate 202, which is arranged perpendicular to the axis of the preheating tube 1. The periphery of the melting-assisting plate 202 is connected to the inner wall of the preheating tube 1. A plurality of melting-assisting holes 205 are longitudinally arranged on the melting-assisting plate 202, and the melting-assisting holes 205 on any two adjacent melting-assisting plates 202 do not overlap with each other.

[0044] In this embodiment, there are three melting-assisting holes 205 evenly distributed around the circumference of the melting-assisting plate 202 , and the melting-assisting holes 205 on two adjacent melting-assisting plates 202 are axially staggered.

[0045] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A preheating tube for a 3D printer nozzle, the preheating tube (1) being connected to a feed end of the 3D printer nozzle, characterized in that: A plurality of melting-assisting portions (2) are arranged in the preheating tube (1) along its axial direction, and any two adjacent melting-assisting portions (2) are spaced apart and axially staggered.

2. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting portion (2) is in the shape of a flat plate arranged along the radial direction of the preheating tube (1), both sides of the melting-assisting portion (2) are connected to the inner wall of the preheating tube (1), and two adjacent melting-assisting portions (2) are perpendicular to each other.

3. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting portion (2) comprises a melting-assisting tube (201) and a melting-assisting plate (202); the melting-assisting tube (201) is arranged in the middle of the preheating tube (1) along the axial direction of the preheating tube (1); the melting-assisting plate (202) is arranged radially along the melting-assisting tube (201); two sides of the melting-assisting plate (202) are respectively connected to the outer wall of the melting-assisting plate (202) and the inner wall of the preheating tube (1); a plurality of melting-assisting plates (202) are arranged at intervals along the outer wall of the melting-assisting tube (201); and the melting-assisting plates (202) of any two adjacent melting-assisting portions (2) are arranged in a staggered manner.

4. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting section (2) comprises a melting-assisting block (203), wherein a plurality of the melting-assisting blocks (203) are arranged at intervals along the inner wall of the preheating tube (1), wherein the cross-section of the melting-assisting block (203) is fan-shaped, wherein the rounded edge of the melting-assisting block (203) is connected to the inner wall of the preheating tube (1), and the sharp edge of the melting-assisting block (203) faces the axis of the preheating tube (1), and the melting-assisting blocks (203) of any two adjacent melting-assisting sections (2) are arranged in a staggered manner.

5. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting portion (2) is in the form of a spiral plate, and the spiral periphery of the melting-assisting portion (2) is connected to the inner wall of the preheating tube (1).

6. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting portion (2) comprises a melting-assisting plate (202), the melting-assisting plate (202) being arranged perpendicularly to the axis of the preheating tube (1), the periphery of the melting-assisting plate (202) being connected to the inner wall of the preheating tube (1), a plurality of long strip-shaped melting-assisting grooves (204) being arranged on the melting-assisting plate (202), the melting-assisting grooves (204) on the melting-assisting plate (202) being arranged in parallel, and the melting-assisting grooves (204) on any two adjacent melting-assisting plates (202) being perpendicular to each other.

7. A preheating tube for a 3D printer nozzle according to claim 1, characterized in that: The melting-assisting portion (2) comprises a melting-assisting plate (202), the melting-assisting plate (202) being arranged perpendicular to the axis of the preheating tube (1), the periphery of the melting-assisting plate (202) being connected to the inner wall of the preheating tube (1), a plurality of melting-assisting holes (205) being arranged longitudinally on the melting-assisting plate (202), and the melting-assisting holes (205) on any two adjacent melting-assisting plates (202) do not overlap each other.

8. A preheating tube for a 3D printer nozzle according to any one of claims 1 to 7, characterized in that: The preheating tube (1) and the melting-aiding portion (2) are integrally formed or detachably connected.

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