A 3D printer nozzle structure

Abstract

The utility model belongs to 3D printer technical field, concretely relates to a kind of 3D printer nozzle structure, including: for protection and realize the nozzle mounting shell of pipe material transmission, nozzle mounting plate installed in the inside of nozzle mounting shell and nozzle assembly installed by mounting assembly;The nozzle assembly includes nozzle for discharging and metal pipe connected in the end of nozzle;The mounting assembly includes the tablet for being located in the one side of metal pipe, respectively set in the fixed hole of tablet both ends, respectively penetrate the fixed bolt inside of two fixed holes, respectively set in the surface of nozzle mounting plate and with the thread joint of fixed bolt two threaded holes.This utility model, metal pipe drives guide block to slide in guide groove to the highest end, then tablet drives positioning hole to be sleeved on the surface of positioning block, then fixed bolt penetrates fixed hole and threaded hole and is connected by screw thread, so metal pipe's position can be fixed by tablet, so the fixed installation of nozzle assembly can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printer technology, specifically relating to a 3D printer nozzle structure. Background Technology

[0002] A 3D printer is a device that creates three-dimensional objects by depositing materials layer by layer. It combines computer-aided design (CAD), numerical control technology, materials science, and precision mechanics to achieve rapid transformation from digital models to physical products.

[0003] The 3D printer nozzle is the core component of fused deposition modeling (FDM) technology. It is responsible for heating and melting solid filament and precisely extruding it to build three-dimensional objects layer by layer. Its structural design directly affects printing accuracy, speed, and material adaptability.

[0004] The nozzle structure design used in existing 3D printers has a complicated installation process in actual operation. This design flaw makes it inconvenient for users when they need to replace or maintain the nozzle structure.

[0005] In view of this, the present invention provides a 3D printer nozzle structure to solve the problem of inconvenient nozzle assembly. Utility Model Content

[0006] To achieve the above objectives, the present invention provides the following technical solution: a 3D printer nozzle structure, comprising: a nozzle mounting housing for protecting and conveying tubular material, a nozzle mounting plate installed inside the nozzle mounting housing, and a nozzle assembly installed by a mounting assembly;

[0007] The nozzle assembly includes a nozzle for discharging material and a metal tube extending through and connected to the end of the nozzle.

[0008] The mounting assembly includes a pressure plate located on one side of the metal tube, fixing holes respectively opened at both ends of the pressure plate, fixing bolts respectively passing through the two fixing holes, and two threaded holes respectively opened on the surface of the nozzle mounting plate and threadedly connected to the fixing bolts.

[0009] As a preferred embodiment of the 3D printer nozzle structure of this utility model, the pressure plate includes a first horizontal portion and a second horizontal portion, as well as a bent portion that protrudes outward between the first horizontal portion and the second horizontal portion and matches the size of the outer wall of the metal tube.

[0010] As a preferred embodiment of the 3D printer nozzle structure of this utility model, a positioning component is provided between the metal tube and the bending part. The positioning component includes a positioning hole opened on the surface of the bending part and a positioning part connected to the surface of the metal tube and adapted to the size of the positioning hole.

[0011] As a preferred embodiment of the 3D printer nozzle structure of this utility model, the positioning part includes a positioning block connected to the side surface of the metal tube and inclined surfaces located at the four corners of the end of the positioning block.

[0012] As a preferred embodiment of the 3D printer nozzle structure of this utility model, the positioning component further includes a guide groove formed on the surface of the nozzle mounting plate and a guide block connected to the side surface of the metal tube and adapted to the guide groove, wherein the guide block has a T-shaped transverse cross section.

[0013] As a preferred embodiment of the 3D printer nozzle structure of this utility model, the surface of the nozzle is fitted with a rubber protective sleeve, which is made of fluororubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model: The metal tube drives the guide block to slide upward to the highest point inside the guide groove. Then, the pressure plate drives the positioning hole to fit onto the surface of the positioning block. When the pressure plate drives the fixing hole to move to one side of the threaded hole, the fixing bolt passes through the fixing hole and the threaded hole to make a threaded connection. In this way, the position of the pressure plate is fixed by the threaded connection between the fixing bolt and the threaded hole, so that the position of the metal tube can be fixed by the pressure plate to achieve the fixed installation of the nozzle assembly.

[0016] This invention uses a high-temperature resistant rubber protective sleeve fitted onto the surface of the nozzle, which provides a heat-prevention effect during nozzle operation. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a cross-sectional view of the nozzle mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the nozzle assembly structure of this utility model;

[0022] Figure 5 This is an exploded view of the nozzle mounting structure of this utility model.

[0023] In the diagram: 11. Nozzle mounting housing; 12. Nozzle mounting plate; 13. Nozzle assembly; 131. Nozzle; 132. Metal tube; 2. Mounting assembly; 21. Pressure plate; 211. First horizontal section; 212. Bending section; 213. Second horizontal section; 22. Fixing hole; 23. Fixing bolt; 24. Threaded hole; 3. Positioning assembly; 31. Positioning hole; 32. Positioning part; 321. Positioning block; 322. Inclined surface; 33. Guide groove; 34. Guide block; 4. Rubber protective sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model relates to a 3D printer nozzle structure, such as... Figures 1-5 As shown, it includes: a nozzle mounting housing 11 for protection and pipe delivery, a nozzle mounting plate 12 installed inside the nozzle mounting housing 11, and a nozzle assembly 13 installed by the mounting assembly 2.

[0026] The nozzle assembly 13 includes a nozzle 131 for discharging material and a metal tube 132 that extends through and connects to the end of the nozzle 131.

[0027] Mounting assembly 2 includes a pressure plate 21 located on one side of the metal tube 132, fixing holes 22 at both ends of the pressure plate 21, fixing bolts 23 passing through the two fixing holes 22, and two threaded holes 24 on the surface of the nozzle mounting plate 12 that are threadedly connected to the fixing bolts 23. When the fixing bolts 23 are threaded through the fixing holes 22 and the threaded holes 24, the position of the pressure plate 21 can be fixed, thereby fixing the position of the metal tube 132 through the pressure plate 21.

[0028] The pressure plate 21 includes a first horizontal portion 211 and a second horizontal portion 213, and a bent portion 212 that protrudes outward between the first horizontal portion 211 and the second horizontal portion 213 and matches the outer wall size of the metal tube 132. By providing the bent portion 212 that matches the size of the outer surface of the metal tube 132, the stability of the metal tube 132 installation can be increased by fixing it with the pressure plate 21.

[0029] Furthermore, a positioning component 3 is provided between the metal tube 132 and the bending portion 212. The positioning component 3 includes a positioning hole 31 opened on the surface of the bending portion 212 and a positioning portion 32 connected to the surface of the metal tube 132 and adapted to the size of the positioning hole 31.

[0030] Furthermore, the positioning part 32 includes a positioning block 321 connected to the side surface of the metal tube 132 and inclined surfaces 322 provided at the four corners of the end of the positioning block 321. The inclined surfaces 322 facilitate the pressure plate 21 to drive the positioning hole 31 to fit onto the surface of the positioning block 321.

[0031] Furthermore, the positioning component 3 also includes a guide groove 33 formed on the surface of the nozzle mounting plate 12 and a guide block 34 connected to the side surface of the metal tube 132 and adapted to the guide groove 33. The guide block 34 has a T-shaped transverse cross-section. When the metal tube 132 is installed, it drives the T-shaped guide block 34 to slide on the inner wall of the guide groove 33, thereby restricting the movement direction of the metal tube 132 and maintaining the orientation of the positioning part 32.

[0032] Furthermore, a rubber protective sleeve 4, made of fluororubber, is fitted onto the surface of the nozzle 131. This rubber protective sleeve 4 serves to prevent burns during use of the nozzle 131.

[0033] When the nozzle assembly 13 needs to be installed, the front shell of the nozzle mounting housing 11 can be removed first. Then, the metal tube 132 drives the guide block 34 to slide upward inside the guide groove 33. When the metal tube 132 drives the guide block 34 to the highest point in the guide groove 33, the bent part 212 of the pressure plate 21 drives the positioning hole 31 to fit onto the surface of the positioning block 321. When the first horizontal part 211 and the second horizontal part 213 of the pressure plate 21 drive the fixing hole 22 to one side of the threaded hole 24, the fixing bolt 23 passes through the fixing hole 22 and moves to the opening of the threaded hole 24 and rotates. When the fixing bolt 23 rotates at the end of the threaded hole 24, it can move axially inward. In this way, the position of the pressure plate 21 can be fixed by the threaded connection between the fixing bolt 23 and the threaded hole 24, and the position of the metal tube 132 can be fixed by the pressure plate 21 to achieve the fixed installation of the nozzle assembly 13.

[0034] At the same time, a high-temperature resistant rubber protective sleeve 4 is fitted onto the surface of the nozzle 131, which can prevent scalding when the nozzle 131 is running.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A 3D printer nozzle structure, characterized in that, include: A nozzle mounting housing (11) for protection and pipe delivery, a nozzle mounting plate (12) installed inside the nozzle mounting housing (11), and a nozzle assembly (13) installed by the mounting assembly (2). The nozzle assembly (13) includes a nozzle (131) for discharging material and a metal tube (132) that extends through and connects to the end of the nozzle (131). The mounting assembly (2) includes a pressure plate (21) located on one side of the metal tube (132), fixing holes (22) respectively opened at both ends of the pressure plate (21), fixing bolts (23) respectively passing through the two fixing holes (22), and two threaded holes (24) respectively opened on the surface of the nozzle mounting plate (12) and threadedly connected to the fixing bolts (23).

2. The 3D printer nozzle structure according to claim 1, characterized in that: The press (21) includes a first horizontal portion (211) and a second horizontal portion (213) and a bent portion (212) that protrudes outward between the first horizontal portion (211) and the second horizontal portion (213) and matches the outer wall size of the metal tube (132).

3. The 3D printer nozzle structure according to claim 2, characterized in that: A positioning component (3) is provided between the metal tube (132) and the bending part (212). The positioning component (3) includes a positioning hole (31) opened on the surface of the bending part (212) and a positioning part (32) connected to the surface of the metal tube (132) and adapted to the size of the positioning hole (31).

4. The 3D printer nozzle structure according to claim 3, characterized in that: The positioning part (32) includes a positioning block (321) connected to the side surface of the metal tube (132) and inclined surfaces (322) provided at the four corners of the end of the positioning block (321).

5. A 3D printer nozzle structure according to claim 4, characterized in that: The positioning component (3) also includes a guide groove (33) formed on the surface of the nozzle mounting plate (12) and a guide block (34) connected to the side surface of the metal tube (132) and adapted to the guide groove (33), wherein the guide block (34) has a T-shaped transverse cross section.

6. A 3D printer nozzle structure according to claim 1, characterized in that: The nozzle (131) is fitted with a rubber protective sleeve (4), which is made of fluororubber.

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