Thermoforming laser nozzle

Abstract

The utility model relates to the field of laser nozzles, in particular to a thermal forming laser nozzle which comprises a nozzle body, an auxiliary heating mechanism is arranged at the top of the nozzle body and comprises a feeding pipeline, an auxiliary heating pipeline is installed at the bottom of the feeding pipeline, and a heating cavity is formed in the middle of the interior of the auxiliary heating pipeline. A containing cavity is formed in the position, located outside the corresponding heating cavity, in the auxiliary heating pipeline, an upper limiting baffle and a lower limiting baffle are installed in the containing cavity at equal intervals in an up-down staggered mode, and an electric heating assembly is arranged in the containing cavity and sequentially bypasses the upper limiting baffle and the lower limiting baffle. According to the utility model, the electric heating assembly is used for heating the material entering the nozzle body, so that the material is always kept in a proper molten state when being in the auxiliary heating mechanism, and the material can smoothly flow out of the nozzle body in the follow-up process.

Description

Technical Field

[0001] The utility model relates to the technical field of laser nozzles, in particular to a hot forming laser nozzle. Background Art

[0002] A 3D printer, also known as a three-dimensional printer (3DP), is a machine that uses additive manufacturing technology, that is, rapid prototyping technology.

[0003] During use of the laser nozzle of an existing 3D printer, it is easy for the material to partially solidify when entering the laser nozzle, and it is easy for the material to be unable to flow out. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a hot forming laser nozzle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hot forming laser nozzle comprises a nozzle body, the top of the nozzle body is provided with an auxiliary heating mechanism, the auxiliary heating mechanism comprises a feed pipe, the bottom of the feed pipe is provided with an auxiliary heating pipe, a heating cavity is provided in the middle of the auxiliary heating pipe, and a placement cavity is provided outside the corresponding heating cavity in the auxiliary heating pipe, an upper limit baffle and a lower limit baffle are provided in the placement cavity at equal distances and staggeredly, and an electric heating component is provided in the placement cavity and bypasses the upper limit baffle and the lower limit baffle in sequence;

[0007] A feeding pipe is installed at the bottom of the auxiliary heating pipe, and a groove is provided at the top of the feeding pipe at the corresponding nozzle. The inner wall of the groove of the feeding pipe is provided with a second threaded portion, and a feeding pipe is installed in the middle of the top of the groove.

[0008] In addition, a preferred structure is that a first threaded portion is provided on the top of the outer wall of the feed pipe, and a feed through hole is provided in the middle of the feed pipe at the heating cavity of the corresponding auxiliary heating pipe.

[0009] In addition, a preferred structure is that a threaded cavity is opened at the top of the outer wall of the nozzle body and located at the second threaded portion of the corresponding discharge pipe, and a discharge cavity is opened inside the nozzle body.

[0010] In addition, a preferred structure is that the diameter of the feed pipe is smaller than the diameter of the feed cavity of the nozzle body, and a feed through hole is provided in the middle of the feed pipe and located at the heating cavity of the corresponding auxiliary heating pipe.

[0011] In addition, a preferred structure is that heat dissipation fins are installed at equal intervals on the outer wall of the auxiliary heating pipe.

[0012] In addition, a preferred structure is that the diameter of the heating cavity of the auxiliary heating pipe is larger than the diameter of the discharge through hole of the discharge pipe, and the diameter of the heating cavity of the auxiliary heating pipe is larger than the diameter of the feed through hole of the feed pipe.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the material entering the nozzle body is heated by an electric heating component to ensure that the material always maintains an appropriate molten state in the auxiliary heating mechanism, so as to facilitate the subsequent smooth flow of the material out of the nozzle body. In addition, a plurality of heat dissipation fins are used to dissipate certain heat of the auxiliary heating mechanism to avoid excessive temperature of the auxiliary heating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a hot forming laser nozzle proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the nozzle body and the auxiliary heating mechanism separated from each other proposed by the utility model;

[0017] Figure 3 A schematic diagram of the cross-section of the auxiliary heating mechanism proposed in the utility model Figure 1 ;

[0018] Figure 4 A schematic diagram of the cross-section of the auxiliary heating mechanism proposed in the utility model Figure 2 ;

[0019] Figure 5 A schematic diagram of the cross-section of the auxiliary heating mechanism proposed in the utility model Figure 3 ;

[0020] Figure 6 This is a schematic structural diagram of the cross section of the nozzle body proposed in the utility model.

[0021] In the figure: 1 nozzle body, 11 threaded cavity, 12 feed cavity, 2 auxiliary heating mechanism, 21 feed pipe, 211 first threaded portion, 212 feed through hole, 22 auxiliary heating pipe, 221 heat dissipation fin, 222 placement cavity, 223 heating cavity, 23 feed pipe, 31 upper limit baffle, 32 lower limit baffle, 4 electric heating assembly, 5 feed pipe, 51 feed through hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A hot forming laser nozzle comprises a nozzle body 1, an auxiliary heating mechanism 2 is arranged on the top of the nozzle body 1, the auxiliary heating mechanism 2 comprises a feed pipe 21, an auxiliary heating pipe 22 is installed at the bottom of the feed pipe 21, a heating cavity 233 is opened in the middle of the auxiliary heating pipe 22, and a placement cavity 222 is opened outside the corresponding heating cavity 233 in the auxiliary heating pipe 22, an upper limit baffle 31 and a lower limit baffle 32 are arranged in the placement cavity 222 at equal distances and staggered up and down, and an electric heating component 4 is arranged in the placement cavity 222 and bypasses the upper limit baffle 31 and the lower limit baffle 32 in sequence;

[0024] At the same time, a feed pipe 23 is installed at the bottom of the auxiliary heating pipe 22, and a groove is provided at the top of the feed pipe 23 at the corresponding nozzle. The inner wall of the groove of the feed pipe 23 is provided with a second threaded portion, and a feed pipe 5 is installed in the middle of the top of the groove.

[0025] At the same time, a first threaded portion 211 is provided at the top of the outer wall of the feed pipe 21 , and a feed through hole 212 is opened in the middle of the feed pipe 21 at the heating cavity 233 of the corresponding auxiliary heating pipe 22 .

[0026] In addition, a threaded cavity 11 is formed at the top of the outer wall of the nozzle body 1 and located at the second threaded portion of the corresponding discharge pipe 23 , and a discharge cavity 12 is formed inside the nozzle body 1 .

[0027] At the same time, the diameter of the discharge pipe 5 is smaller than the diameter of the discharge cavity 12 of the nozzle body 1 , and a discharge through hole 51 is opened in the middle of the discharge pipe 5 and located at the heating cavity 233 of the corresponding auxiliary heating pipe 22 .

[0028] The outer wall of the auxiliary heating pipe 22 is provided with heat dissipation fins 221 at equal intervals. The diameter of the heating cavity 233 of the auxiliary heating pipe 22 is larger than the diameter of the discharge through hole 51 of the discharge pipe 5, and the diameter of the heating cavity 233 of the auxiliary heating pipe 22 is larger than the diameter of the feed through hole 212 of the feed pipe 21, so that the material entering the auxiliary heating mechanism 2 can stay in the auxiliary heating pipe 22 and can be melted well, so that the material can flow out smoothly from the nozzle body 1 later.

[0029] In this embodiment, the threaded cavity 11 of the nozzle body 1 is loosely matched with the second threaded portion of the feed pipe 23 of the auxiliary heating mechanism 2, thereby facilitating the installation of the nozzle body 1 and the auxiliary heating mechanism 2 and making the assembly and disassembly between the nozzle body 1 and the auxiliary heating mechanism 2 convenient.

[0030] Next, the material entering the nozzle body 1 is heated by the electric heating component 4 to ensure that the material always maintains an appropriate molten state in the auxiliary heating mechanism 2, so that the material can flow out of the nozzle body 1 smoothly later. The auxiliary heating mechanism 2 can be cooled to a certain extent by a plurality of heat dissipating fins 221 to avoid excessive temperature of the auxiliary heating pipe. At the same time, the electric heating component 4 is separated by the upper limit baffle 31 and the lower limit baffle 32 to avoid stacking or collision between adjacent electric heating components 4, thereby ensuring the normal use of the electric heating component 4.

[0031] Furthermore, during the installation of the nozzle body 1 and the auxiliary heating mechanism 2 , the discharge pipe 5 of the auxiliary heating mechanism 2 is inserted into the discharge cavity 12 of the nozzle body 1 to ensure that the material does not leak out and that the material flows out of the nozzle body 1 smoothly.

[0032] In the utility model, the material entering the nozzle body 1 is heated by the electric heating component 4 to ensure that the material always maintains an appropriate molten state in the auxiliary heating mechanism 2, so as to facilitate the subsequent smooth flow of the material out of the nozzle body 1, and through multiple heat dissipation fins 221, the auxiliary heating mechanism 2 can be cooled to a certain extent to avoid the temperature of the auxiliary heating pipe being too high.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot forming laser nozzle, comprising a nozzle body (1), characterized in that: An auxiliary heating mechanism (2) is arranged at the top of the nozzle body (1), the auxiliary heating mechanism (2) comprises a feed pipe (21), an auxiliary heating pipe (22) is installed at the bottom of the feed pipe (21), a heating cavity (233) is opened in the middle of the auxiliary heating pipe (22), and a placement cavity (222) is opened outside the corresponding heating cavity (233) in the auxiliary heating pipe (22), an upper limit baffle (31) and a lower limit baffle (32) are installed in the placement cavity (222) at equal distances and staggered up and down, and an electric heating component (4) is arranged in the placement cavity (222) and bypasses the upper limit baffle (31) and the lower limit baffle (32) in sequence; A feeding pipe (23) is installed at the bottom of the auxiliary heating pipe (22), a groove is provided at the top of the feeding pipe (23) at the corresponding nozzle, a second threaded portion is provided on the inner wall of the groove of the feeding pipe (23), and a feeding pipe (5) is installed in the middle of the top of the groove.

2. A hot forming laser nozzle according to claim 1, characterized in that: The top of the outer wall of the feed pipe (21) is provided with a first threaded portion (211), and a feed through hole (212) is provided in the middle of the feed pipe (21) at the heating cavity (233) of the corresponding auxiliary heating pipe (22).

3. A hot forming laser nozzle according to claim 1, characterized in that: A threaded cavity (11) is provided at the top of the outer wall of the nozzle body (1) and at the second threaded portion of the corresponding discharge pipe (23), and a discharge cavity (12) is provided inside the nozzle body (1).

4. A hot forming laser nozzle according to claim 1, characterized in that: The diameter of the feed tube (5) is smaller than the diameter of the feed cavity (12) of the nozzle body (1), and a feed through hole (51) is provided in the middle of the feed tube (5) and located at the heating cavity (233) of the corresponding auxiliary heating pipe (22).

5. The hot forming laser nozzle according to claim 1, characterized in that: The outer wall of the auxiliary heating pipe (22) is provided with heat dissipation fins (221) at equal intervals.

6. A hot forming laser nozzle according to claim 1, characterized in that: The diameter of the heating cavity (233) of the auxiliary heating pipe (22) is greater than the diameter of the material discharge through hole (51) of the discharge pipe (5), and the diameter of the heating cavity (233) of the auxiliary heating pipe (22) is greater than the diameter of the material feed through hole (212) of the feed pipe (21).

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