Heat insulation structure applied to assembling and fixing of 3D printing hot end

Abstract

The utility model relates to the technical field of heat management of 3D printing equipment, in particular to a heat insulation structure applied to assembly and fixation of a 3D printing hot end. The heat insulation structure comprises a radiator, a heat insulation piece, a throat pipe and a hot end assembly, the radiator and the hot end assembly are connected through the throat pipe, and the heat insulation piece is arranged on the radiator and fixes the hot end assembly. The heat insulation piece is fixedly connected with the radiator and the hot end assembly through high-temperature-resistant screws, and the surfaces of the screws are provided with anti-oxidation coatings. The radiator is provided with radiating fins which are distributed in an array mode so as to enhance the radiating effect. In addition, the heat insulation piece can be made of an electric wood block material, and heat insulation performance is further improved. The hot end assembly is stably fixed, heat conduction is effectively isolated, and the working efficiency and the printing quality of the hot end are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat management of 3D printing equipment, in particular to a heat insulation structure applied to assembly and fixation of a hot end of 3D printing. BACKGROUND

[0002] In the field of 3D printing technology, the stability and heat insulation performance of the hot end are one of the key factors to ensure the printing quality and efficiency. With the continuous development and popularization of 3D printing technology, the design and manufacturing of various printers pay more and more attention to detail optimization, especially in the aspect of heat management. As the core component generating high temperature in the 3D printing process, the assembly and fixation method of the hot end directly affects the stability and reliability of the entire printing system. Therefore, how to effectively fix the hot end and maintain good heat insulation performance has become an important research topic in the field of 3D printing technology.

[0003] In the existing 3D printing hot end fixation method, the two common schemes are as follows: one is that the hot end and the throat radiator are directly connected and fixed by the throat; the other is that the hot end and the radiator are directly connected and fixed by the throat, and then fixed by a screw. Although these two methods can meet the basic fixation requirements to some extent, they have obvious shortcomings in actual application. Specifically, the first method is prone to hot end rupture or bending in a high-temperature environment, which affects the printing quality. The second method increases the screw fixation, but this way causes the heat of the hot end to be conducted to the radiator through the screw, which increases the temperature of the throat and causes the blockage of the material, and also increases the power loss of the hot end and reduces its working efficiency.

[0004] In the prior art, the above two methods cannot effectively solve the contradiction between hot end fixation and heat insulation. Especially in a high-temperature environment, the heat conduction problem between the hot end and the radiator is particularly prominent, which frequently causes the blockage of the material during the printing process, seriously affecting the stability and efficiency of 3D printing.

[0005] Therefore, based on the above technical problems, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the present application is to provide a heat insulation structure applied to assembly and fixation of a hot end of 3D printing, which can effectively isolate heat conduction while ensuring the stable fixation of the hot end, and improve the working efficiency of the hot end and the printing quality.

[0007] The above technical purpose of the present application is achieved by the following technical scheme: a heat insulation structure applied to assembly and fixation of a hot end of 3D printing, comprising a radiator, a heat insulation piece, a throat, and a hot end assembly; the throat is installed and connected between the radiator and the hot end assembly, the heat insulation piece is arranged on the radiator, and the hot end assembly is arranged on the heat insulation piece.

[0008] By adopting the technical scheme, the heat sink can effectively dissipate the heat generated by the hot end assembly, guarantee the stable operation of the 3D printing hot end in a suitable temperature range, and avoid the influence of overheating on the printing quality and the service life of the equipment. The setting of the heat insulation piece can effectively block the direct conduction of heat between the heat sink and the hot end assembly, reduce the transfer of heat to the heat sink, and reduce the risk of overheating of the throat pipe due to heat conduction, thereby preventing the problems such as material blocking caused by the high temperature of the throat pipe, and improving the success rate of printing. At the same time, the structure is reasonably designed, and the components work cooperatively, which optimizes the working environment of the hot end assembly, helps to improve the working efficiency of the hot end assembly, reduces the energy loss, and is beneficial to prolong the service life of the entire 3D printing hot end assembly structure.

[0009] Optionally, the heat insulation piece and the heat sink are fixedly connected through a first fastener, and the heat insulation piece and the hot end assembly are fixedly connected through a second fastener.

[0010] By adopting the technical scheme, the first fastener can ensure the stable installation of the heat insulation piece in the entire structure. The second fastener can ensure the stable installation of the hot end assembly in the entire structure, and the second fastener is not directly connected with the heat sink, thereby blocking the direct heat dissipation of the hot end assembly to the heat sink through the second fastener, reducing the temperature of the throat pipe, solving the problem of material blocking caused by the high temperature of the throat pipe, and also increasing the working efficiency of the hot end.

[0011] Optionally, the first fastener and the second fastener are high-temperature-resistant screws, and the surfaces of the first fastener and the second fastener have an anti-oxidation coating.

[0012] By adopting the technical scheme, the high-temperature-resistant characteristic ensures that the screw will not soften, deform or reduce in strength and the like under the high-temperature working environment of the 3D printing hot end due to heating, so as to always maintain a reliable connection and fastening effect, effectively maintain the mechanical stability of the heat insulation structure and the entire hot end assembly. The anti-oxidation coating on the surface can effectively prevent the screw from undergoing an oxidation reaction with oxygen in the air during long-term use, avoid the rusting and corrosion of the screw surface due to oxidation, and further prevent the screw from having adverse conditions such as size change and thread damage, thereby ensuring the close fit between the screw and the threaded hole, prolonging the service life of the screw, reducing the maintenance cost of frequently replacing components due to the failure of the fastener, and further enhancing the durability and reliability of the connection of the entire heat insulation structure.

[0013] Optionally, a plurality of first threaded holes are arranged on the heat sink, corresponding second threaded holes are arranged on the heat insulation piece, and the first fastener is threadedly connected with the first threaded hole through the second threaded hole.

[0014] By adopting the above technical scheme, the design of multiple threaded holes provides multiple connection points, making the connection between the heat insulation member and the heat spreader more stable and reliable, and being able to uniformly disperse the connection stress, effectively preventing the connection from loosening due to factors such as thermal expansion and contraction or external vibration during equipment operation. The precisely corresponding threaded hole positions ensure the installation accuracy of the heat insulation member on the heat spreader, ensuring the overall stability and consistency of the heat insulation structure, which helps to optimize the heat conduction path and improve the heat insulation effect. The threaded connection method is convenient for installation and disassembly, and can realize fast and efficient assembly during equipment assembly, while in the later maintenance, repair or component replacement, the heat insulation member can be easily disassembled, reducing the operation difficulty and time cost, and improving the maintainability and flexibility of the entire 3D printing hot end assembly fixing structure.

[0015] Optionally, the heat insulation member is provided with a plurality of third threaded holes, and the hot end assembly is provided with corresponding fourth threaded holes at the corresponding positions, and the second fastener is threadedly connected through the fourth threaded hole and the third threaded hole.

[0016] By adopting the above technical scheme, the layout of multiple threaded holes increases the number of connection points, significantly enhances the firmness and stability of the connection between the heat insulation member and the hot end assembly, and ensures that even under complex working conditions such as high temperature and high frequency vibration during 3D printing, the hot end assembly can maintain a stable assembly relationship, avoiding the influence of printing accuracy or causing component damage due to loose connection. The precise and corresponding threaded hole design ensures the accurate installation position of the hot end assembly on the heat insulation member, which helps to achieve effective heat blocking of the hot end assembly and optimization of the heat conduction path, further improving the heat insulation performance, thereby stabilizing the working temperature of the throat pipe and reducing problems such as throat pipe blockage caused by excessive heat transfer from the hot end. In addition, the threaded connection method is convenient and fast, facilitating the installation, debugging and later maintenance and replacement operation of the hot end assembly, reducing the equipment maintenance cost, and improving the reliability, maintainability and service life of the entire 3D printing hot end system.

[0017] Optionally, the heat insulation member is a bakelite block.

[0018] By adopting the above technical scheme, the bakelite block has excellent insulation performance, can effectively prevent the current generated by the hot end assembly from accidentally conducting to the heat sink or other components, greatly improves the electrical safety of the entire 3D printing hot end assembly structure, and avoids equipment failure and even safety accidents caused by electric leakage. Its good heat resistance enables it to maintain stable physical and chemical properties in a high-temperature hot end environment, stably play a heat insulation role for a long time, and ensure the persistence of the heat insulation effect. The bakelite block also has a certain mechanical strength and is not easy to deform or damage when bearing the pressure of the hot end assembly and fasteners, providing reliable support and stable heat insulation interface for the entire structure. In addition, the material properties of the bakelite block make it easy to process and shape, allowing it to be accurately adapted to the specific shape and size requirements of the heat sink and hot end assembly, facilitating installation and application in the 3D printing hot end assembly fixing structure, effectively reducing production costs and processing difficulty, while also helping to improve the compactness and integrity of the entire structure, further optimizing the working performance and reliability of the 3D printing hot end.

[0019] Optionally, the heat sink is provided with a mounting column, and the heat insulation piece is provided with a mounting hole, and the heat insulation piece is sleeved with the mounting column through the mounting hole.

[0020] By adopting the above technical scheme, the cooperation of the mounting column and the mounting hole provides a convenient and accurate way for the positioning of the heat insulation piece on the heat sink, ensuring the accuracy and consistency of the installation position of the heat insulation piece, which is conducive to building a stable heat insulation system and improving the repeatability and reliability of the heat insulation effect. The sleeving connection method enhances the stability of the connection to a certain extent and can withstand certain lateral force and tension, preventing the heat insulation piece from shifting or loosening during equipment operation and ensuring the mechanical stability of the entire structure. In addition, this connection structure is relatively simple and easy to install and disassemble, allowing for quick positioning and assembly of components during equipment assembly, improving production efficiency; during equipment maintenance or repair, the heat insulation piece can also be easily removed from the heat sink, reducing maintenance difficulty and time cost, making the entire 3D printing hot end assembly fixing structure more operable and maintainable.

[0021] Optionally, the surface of the heat sink is provided with heat dissipation fins, and the heat dissipation fins are arranged in an array.

[0022] By adopting the above technical scheme, the arrayed heat dissipation fins greatly increase the contact area between the heat sink and the air, and the air can form an effective convection channel between the fins, thereby significantly improving the heat dissipation efficiency of the heat sink and enabling it to dissipate heat from the hot end assembly to the surrounding environment more quickly, ensuring that the hot end works within an appropriate temperature range and improving the stability and reliability of 3D printing. The presence of heat dissipation fins helps to optimize heat distribution, enabling heat to be more evenly dissipated and reducing local overheating, thereby prolonging the service life of the heat sink and the entire hot end assembly.

[0023] In summary, the present application at least contains the following one beneficial effect:

[0024] 1. The addition of the thermal insulation (bunbury) between the heat sink and the hot end assembly effectively blocks the heat conduction from the hot end to the heat sink, reducing the risk of temperature rise in the throat pipe, thereby preventing the problem of material blockage caused by excessive temperature of the throat pipe, significantly improving the stability and success rate of 3D printing;

[0025] 2. The thermal insulation, heat sink and hot end assembly are fixedly connected by high-temperature-resistant screws, which not only ensures the stability of the structure, but also effectively avoids the heat conduction problem caused by the traditional screw fixing method, further improving the working efficiency and energy utilization rate of the hot end;

[0026] 3. The surface of the heat sink is provided with heat dissipation fins, which enhances the heat dissipation effect, helps to maintain the constant temperature of the hot end, prolongs the service life of the hot end, and improves the overall performance and reliability of 3D printing. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a thermal insulation structure applied to the assembly and fixation of a 3D printing hot end;

[0028] Figure 2 is a sectional view of a thermal insulation structure applied to the assembly and fixation of a 3D printing hot end;

[0029] Figure 3 is an exploded view of a thermal insulation structure applied to the assembly and fixation of a 3D printing hot end;

[0030] Figure 4 is a structural schematic diagram of a heat sink;

[0031] Figure 5 is a structural schematic diagram of a thermal insulation;

[0032] Figure 6 is a structural schematic diagram of a hot end assembly.

[0033] REFERENCE NUMERALS

[0034] 1. Heat sink; 2. Thermal insulation; 3. Throat pipe; 4. Hot end assembly; 5. First fastener; 6. Second fastener; 7. First threaded hole; 8. Second threaded hole; 9. Third threaded hole; 10. Fourth threaded hole; 11. Mounting column; 12. Mounting hole. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] Referring toFigures 1-6 The application embodiment provided by the application provides a heat insulation structure applied to 3D printing hot end assembly fixation, which comprises a radiator 1, a heat insulation piece 2, a throat pipe 3 and a hot end assembly 4. The throat pipe 3 is arranged between the radiator 1 and the hot end assembly 4, the heat insulation piece 2 is arranged on the radiator 1, and the hot end assembly 4 is arranged on the heat insulation piece 2. The heat insulation structure can effectively isolate heat, so that the heat on the hot end assembly 4 cannot be directly conducted to the radiator 1, thereby reducing the temperature of the throat pipe 3, solving the problem of material blockage of the throat pipe 3 due to high temperature, and increasing the working efficiency of the hot end assembly 4 and the printing quality.

[0038] Specifically, the radiator 1 comprises a plurality of heat dissipation fins. The heat dissipation fins are arranged in an array on the surface of the radiator 1, which can significantly increase the heat dissipation area and improve the heat dissipation efficiency. The heat dissipation fins can be made of aluminum alloy material, which has good heat conduction performance and lightweight characteristics. The radiator 1 can also be made of copper or other high-thermal-conductivity materials to further improve the heat dissipation effect.

[0039] Preferably, the heat insulation piece 2 is an bakelite block. The bakelite block has excellent insulation performance and high temperature resistance, which can effectively prevent heat conduction from the hot end assembly 4 to the radiator 1. The bakelite block can also be replaced by other materials with good heat insulation performance, such as ceramic or graphene composite materials. These materials also have excellent heat insulation performance, and appropriate materials can be selected in different application scenarios.

[0040] The throat pipe 3 is used to connect the radiator 1 and the hot end assembly 4. The throat pipe 3 can be made of metal materials such as stainless steel or aluminum, which has high strength and temperature resistance. The inner wall of the throat pipe 3 can be coated with a layer of high-temperature resistant paint to prevent material oxidation and corrosion and prolong the service life.

[0041] The hot end assembly 4 comprises a nozzle, a heating element and a thermistor. The nozzle is usually made of brass or stainless steel, which has good wear resistance and high temperature resistance. The heating element can be made of resistance wire or ceramic heating rod, which has the characteristics of rapid heating. The thermistor is used to monitor the temperature of the hot end, to ensure the temperature control accuracy in the printing process.

[0042] The heat insulation piece 2 and the radiator 1 are fixedly connected by the first fastener 5, and the heat insulation piece 2 and the hot end assembly 4 are fixedly connected by the second fastener 6. The first fastener 5 and the second fastener 6 are high-temperature-resistant screws with an oxidation-resistant coating on the surface. It can ensure that the screws will not loosen or be damaged in a high-temperature environment, ensuring the stability of the structure. The materials of the first fastener 5 and the second fastener 6 can be selected from stainless steel or titanium alloy to improve the high-temperature resistance and corrosion resistance.

[0043] Referring to 4-6, the heat sink 1 is provided with a plurality of first threaded holes 7, and the heat insulation piece 2 is provided with corresponding second threaded holes 8 at the corresponding positions. The first fastener 5 is screwed through the second threaded hole 8 and the first threaded hole 7. This connection method is simple and reliable, easy to disassemble and maintain. The diameters of the first threaded hole 7 and the second threaded hole 8 can be adjusted according to actual needs to adapt to fasteners of different sizes. The heat insulation piece 2 is provided with a plurality of third threaded holes 9, and the hot end assembly 4 is provided with corresponding fourth threaded holes 10 at the corresponding positions. The second fastener 6 is screwed through the fourth threaded hole 10 and the third threaded hole 9. It can ensure that the hot end assembly 4 is firmly fixed on the heat insulation piece 2, avoiding loosening or falling off in a high-temperature environment.

[0044] Referring to Figure 4 , the surface of the heat sink 1 is provided with heat dissipation fins, which are arranged in an array. The heat dissipation fins can be made of aluminum alloy material, which has good heat conduction performance and lightweight characteristics. The heat sink 1 can also be made of copper or other high-heat-conducting materials to further improve the heat dissipation effect. Referring to Figures 4-5 , the heat sink 1 is provided with mounting columns 11, and the heat insulation piece 2 is provided with mounting holes 12. The heat insulation piece 2 is installed by sleeving the mounting columns 11 through the mounting holes 12. The mounting columns 11 can be cylindrical or square, and the mounting holes 12 are designed as circular or square holes accordingly to ensure the stability of the installation. The size of the mounting column 11 and the mounting hole 12 can be adjusted according to actual needs to adapt to different specifications of the heat sink 1 and the heat insulation piece 2.

[0045] The implementation principle of this embodiment is: by adding a heat insulation piece 2 between the heat sink 1 and the hot end assembly 4, the heat conduction from the hot end assembly 4 to the heat sink 1 is effectively blocked, the temperature rise of the throat pipe 3 is reduced, and the occurrence of the blockage problem is avoided. At the same time, the use of the heat insulation piece 2 also improves the working efficiency of the hot end assembly 4, reduces the energy loss, and improves the printing quality. In addition, the use of high-temperature-resistant screws and oxidation-resistant coatings further enhances the stability and durability of the structure.

[0046] Embodiment 2

[0047] The difference between this embodiment and the above-mentioned embodiments is that the heat insulation piece 2 is made of ceramic material. Ceramic material has higher temperature resistance and better heat insulation effect, and is suitable for higher temperature 3D printing applications. The ceramic heat insulation piece 2 can be manufactured by sintering process, which has uniform density and dense structure, and can effectively prevent heat conduction. The selection of ceramic material can include aluminum oxide, silicon nitride, etc., which has excellent high-temperature resistance and chemical stability.

[0048] The mounting column 11 on the heat sink 1 and the mounting hole 12 on the heat insulation piece 2 are designed to simplify the assembly process and improve production efficiency. The mounting column 11 can be cylindrical or square, and the mounting hole 12 is designed as a circular or square hole accordingly to ensure the stability of the installation. The size of the mounting column 11 and the mounting hole 12 can be adjusted according to actual needs to adapt to different specifications of the heat sink 1 and the heat insulation piece 2.

[0049] The implementation principle of this embodiment is to further improve the heat insulation effect by using ceramic material as the heat insulation piece 2, which is suitable for higher temperature 3D printing applications. The high temperature resistance and low thermal conductivity of ceramic material effectively prevent heat conduction from the hot end to the heat sink 1, reducing the temperature rise of the throat pipe 3, thereby avoiding the occurrence of the problem of material blockage. At the same time, the chemical stability of ceramic material also makes it more durable in high temperature environment, improving the stability and reliability of the overall structure.

[0050] Embodiment 3

[0051] The difference between this embodiment and the above-mentioned embodiments is that the heat dissipation fins on the surface of the heat sink 1 adopt a wavy design instead of the traditional upright design. The wavy design of the heat dissipation fins can increase the heat dissipation surface area and improve the heat dissipation efficiency. The wavy design can also form vortexes when air flows, enhancing the heat dissipation effect. The height and width of the wavy heat dissipation fins can be adjusted according to actual needs to achieve the best heat dissipation effect. The material of the heat dissipation fins can be aluminum alloy or copper, which has good thermal conductivity.

[0052] The implementation principle of this embodiment is to significantly improve the heat dissipation efficiency of the heat sink 1 by adopting the wavy heat dissipation fin design. The vortex effect formed by the wavy design further enhances the heat dissipation effect when air flows, effectively reducing the temperature of the heat sink 1. This not only helps to reduce the heat conduction from the hot end to the heat sink 1, but also improves the stability and reliability of the overall system, thereby improving the quality and efficiency of 3D printing.

[0053] Embodiment 4

[0054] The difference between this embodiment and the above-mentioned embodiments is that the connection method of the heat insulation piece 2 with the heat sink 1 and the hot end assembly 4 adopts a buckle design instead of a threaded connection. The buckle design can simplify the assembly process and improve production efficiency. The heat insulation piece 2 with buckle design can be fixed on the heat sink 1 by simply pressing, without the need for tools. The heat insulation piece 2 is provided with elastic clamps, and the heat sink 1 is provided with corresponding clamping grooves. The cooperation of the clamps and the clamping grooves can ensure the stable fixation of the heat insulation piece 2. The heat insulation piece 2 with buckle design can be made of plastic or metal material, which has good elasticity and high temperature resistance.

[0055] The connection mode of the hot end assembly 4 and the heat insulation piece 2 can also adopt a buckle type design, which is fixed on the heat insulation piece 2 through a simple pressing action. The hot end assembly 4 is provided with an elastic clamping jaw, and the heat insulation piece 2 is provided with a corresponding clamping groove, and the cooperation of the clamping jaw and the clamping groove can ensure the stable fixation of the hot end assembly 4. The hot end assembly 4 of the buckle type design can be made of plastic or metal material, which has good elasticity and high temperature resistance.

[0056] The implementation principle of the embodiment is that the connection mode of the heat insulation piece 2 and the heat sink 1 and the hot end assembly 4 is simplified by adopting the buckle type design, and the assembly efficiency and the production efficiency are improved. The simplicity and reliability of the buckle type design can maintain the stability and reliability of the structure in a high temperature environment, effectively reduce the heat conduction from the hot end to the heat sink 1, and improve the quality and efficiency of 3D printing.

[0057] Embodiment 5

[0058] The difference between the embodiment and the above-mentioned embodiments is that the connection mode of the heat insulation piece 2 and the heat sink 1 and the hot end assembly 4 adopts a magnetic attraction type design instead of a threaded connection. The magnetic attraction type design can simplify the assembly process and improve the production efficiency. The heat insulation piece 2 is embedded with a permanent magnet, and the heat sink 1 and the hot end assembly 4 are provided with corresponding ferrous materials, and are fixed by magnetic attraction. The heat insulation piece 2 of the magnetic attraction type design can be made of plastic or metal material, which has good magnetism and high temperature resistance. The connection mode of the heat insulation piece 2 and the heat sink 1 and the hot end assembly 4 of the magnetic attraction type design is simple and reliable, and is convenient for disassembly, assembly and maintenance.

[0059] The implementation principle of the embodiment is that the connection mode of the heat insulation piece 2 and the heat sink 1 and the hot end assembly 4 is further simplified by adopting the magnetic attraction type design, and the assembly efficiency and the production efficiency are improved. The simplicity and reliability of the magnetic attraction type design can maintain the stability and reliability of the structure in a high temperature environment, effectively reduce the heat conduction from the hot end to the heat sink 1, and improve the quality and efficiency of 3D printing.

[0060] The embodiments of the specific embodiment are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A heat-insulating structure for hot-end assembly and fixation in 3D printing, characterized in that, It includes a radiator (1), a heat insulation component (2), a throat (3), and a hot end assembly (4); the throat (3) is installed and connected between the radiator (1) and the hot end assembly (4), the heat insulation component (2) is disposed on the radiator (1), and the hot end assembly (4) is disposed on the heat insulation component (2).

2. The heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 1, characterized in that, The heat insulation component (2) is fixedly connected to the heat sink (1) by a first fastener (5), and the heat insulation component (2) is fixedly connected to the hot end assembly (4) by a second fastener (6).

3. The heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 2, characterized in that, Both the first fastener (5) and the second fastener (6) are high-temperature resistant screws, and the surfaces of the first fastener (5) and the second fastener (6) have an anti-oxidation coating.

4. The heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 3, characterized in that, The radiator (1) is provided with a plurality of first threaded holes (7), and the heat insulation component (2) is provided with corresponding second threaded holes (8) at the corresponding positions. The first fastener (5) passes through the second threaded hole (8) and is threadedly connected to the first threaded hole (7).

5. A heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 4, characterized in that, The heat insulation component (2) is provided with a plurality of third threaded holes (9), and the hot end assembly (4) is provided with a corresponding fourth threaded hole (10) at the corresponding position. The second fastener (6) passes through the fourth threaded hole (10) and is threadedly connected to the third threaded hole (9).

6. A heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 1, characterized in that, The heat insulation component (2) is a bakelite block.

7. A heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 1, characterized in that, The radiator (1) is provided with a mounting post (11), and the heat insulation component (2) is provided with a mounting hole (12). The heat insulation component (2) is fitted onto the mounting post (11) through the mounting hole (12).

8. A heat insulation structure for hot-end assembly and fixation in 3D printing according to claim 1, characterized in that, The surface of the radiator (1) is provided with heat dissipation fins, which are arranged in an array.

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