3D printer tool head duct blowing and heat dissipation integrated assembly

Abstract

The utility model discloses a 3D printer tool head duct blowing and heat dissipation integrated assembly, and relates to the technical field of 3D printers, the 3D printer tool head duct blowing and heat dissipation integrated assembly comprises an air duct shell, a duct fan is installed at the position of an air inlet pipe of the air duct shell, a heat dissipation box is arranged on the air duct shell in a communicating mode, and a heat dissipation component is arranged in the heat dissipation box. An adjusting mechanism used for adjusting the air displacement of the air duct shell is arranged at the other end of the air duct shell. According to the utility model, the whole hardware structure is more compact. The modularization integration level is higher, in the aspect of functions, a universal-revolution ducted brushless fan is innovatively used, and the overall air volume and air pressure are greatly improved; the problem of insufficient heat dissipation of the throat pipe is obviously solved, and the printing stability is improved. Constant air volume and air pressure are adopted, flow control of opening and closing of the valve plates is adopted, the flow response speed is higher, and the quality and precision of the printed outer surface can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically a ducted material blowing and heat dissipation integrated component for a 3D printer tool head. Background Technology

[0002] 3D printing, a type of rapid prototyping technology, is a method of creating three-dimensional objects by printing layer by layer using special waxes or plastics based on digital model files. Currently, all commercially available 3D printers use separate systems for throat cooling and material blowing cooling. Most machines use 4020 turbine fans for the material blowing system and 3015 axial fans for the throat cooling system. This presents two problems: firstly, the separate systems occupy too much space in the tool head; secondly, the limited space necessitates the use of smaller fans with lower airflow and air pressure, easily leading to insufficient heat dissipation and problems such as tool head blockage.

[0003] Based on this, a 3D printer tool head duct blowing and heat dissipation integrated component is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and propose an integrated ducted airflow cooling component for 3D printer tool heads. Structurally, it adopts an integrated airflow design, combining the airflow duct and throat cooling duct into a single air inlet, resulting in a more compact structure, smaller size, and lighter weight. This reduces inertia during movement and improves accuracy during high-speed printing. In terms of performance, it innovatively uses a 100,000 RPM ducted brushless fan, significantly increasing overall airflow and air pressure. This significantly solves the problem of insufficient throat cooling, improving printing stability. Furthermore, the fan is always on, and the airflow from the airflow duct is controlled by a servo motor-controlled valve switch, providing a faster response time compared to fan start / stop. This allows for timely cooling of the printed parts during printing, further increasing printing speed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A ducted material blowing and heat dissipation integrated component for a 3D printer tool head includes a duct housing, a ducted fan installed at the air inlet of the duct housing, a heat dissipation box connected to the duct housing, a heat dissipation component inside the heat dissipation box, and an adjustment mechanism for adjusting the exhaust volume of the duct housing at the other end of the duct housing.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative: the heat dissipation component includes heat dissipation fins, the heat dissipation box has openings on both sides, a number of limiting rods are provided at one opening end of the heat dissipation box, heat dissipation fins are fitted inside the heat dissipation box, and an installation plate is installed at the opening on the other side of the heat dissipation box.

[0009] In one alternative embodiment: the adjusting mechanism includes a valve plate; an installation shaft is rotatably provided at the middle of one end of the air duct housing; the installation shaft is hollow inside and has an installation groove; the valve plate is installed in the installation groove; one end of the installation shaft is fixedly connected to the output end of a servo motor; the servo motor is fixedly connected to the air duct housing by screws; an air duct baffle is provided on one side of the valve plate and is fixedly provided inside the air duct housing.

[0010] In one alternative: the duct baffle is eccentrically positioned at the installation location inside the duct housing.

[0011] In one alternative: the distances between the two sides of the valve plate and the axis of the mounting shaft are not equal.

[0012] In one alternative: the servo motor has a control board inside, the ducted fan is electrically connected to the servo motor, and the servo motor is electrically connected to an external main control board.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In terms of hardware structure, this invention is more compact overall. It features higher modular integration, fewer parts, and a lighter overall weight, which helps reduce inertia and improves printing speed. Functionally, it innovatively uses a 10,000 RPM ducted brushless fan, significantly increasing overall airflow and air pressure; it also significantly solves the problem of insufficient heat dissipation in the throat, improving printing stability. Employing constant airflow and air pressure, and using valve-based flow control, it achieves faster flow response, greatly improving the quality and precision of the printed outer surface, as well as providing large-angle support for overhanging structures. This allows for easier production of more printed structures, expanding the application range of 3D printing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall assembly of this utility model.

[0017] Figure 3 This is a schematic diagram of the valve plate installation of this utility model.

[0018] Figure 4 This is an exploded view of the present invention.

[0019] Figure reference numerals: 11 Duct fan, 12 Duct housing, 13 Mounting plate, 14 Heat sink fins, 15 Valve plate, 16 Servo motor, 17 Screw, 18 Duct baffle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, such as Figures 1-4 As shown, a ducted material blowing and heat dissipation integrated component for a 3D printer tool head includes an air duct housing 12, a ducted fan 11 installed at the air inlet of the air duct housing 12, a heat dissipation box connected to the air duct housing 12, a heat dissipation component inside the heat dissipation box, and an adjustment mechanism for adjusting the exhaust volume of the air duct housing 12 at the other end of the air duct housing 12, which facilitates the adjustment of the exhaust volume of the air duct housing 12;

[0022] The heat dissipation component includes heat dissipation fins 14. The heat dissipation box is open on both sides. Several limiting rods are provided at one open end of the heat dissipation box. The heat dissipation fins 14 are fitted inside the heat dissipation box. An installation plate 13 is installed at the other open end of the heat dissipation box. In use, heat dissipation can be achieved more quickly through the heat dissipation fins 14.

[0023] The regulating mechanism includes a valve plate 15. An installation shaft is rotatably provided at the middle of one end of the air duct housing 12. The installation shaft is hollow inside and has an installation groove. The valve plate 15 is installed in the installation groove. One end of the installation shaft is fixedly connected to the output end of the servo motor 16. The servo motor 16 is fixedly connected to the air duct housing 12 by screws 17. An air duct baffle 18 is provided on one side of the valve plate 15. The air duct baffle 18 is fixedly installed inside the air duct housing 12. In use, when the printer is printing, the duct fan 11 will run at full power. When it is necessary to blow material to cool down during the printing process, the printer main controller issues a command to use the servo motor 16 to control the opening and closing of the valve plate 15, thereby controlling the flow rate of the blowing air duct.

[0024] The air duct baffle 18 is eccentrically positioned inside the air duct housing 12. In use, when the valve plate 15 closes one end of the air duct housing 12, the air duct housing 12 has a 20% lower flow limit with the air duct baffle 18 in an eccentric position.

[0025] The distances between the two sides of the valve plate 15 and the axis of the mounting shaft are not equal, which makes it easier to fit better into the interior of the air duct housing 12 during use.

[0026] The servo motor 16 has a control board inside, the duct fan 11 is electrically connected to the servo motor 16, and the servo motor 16 is electrically connected to the external main control board. In use, it is convenient to control the servo motor 16 and the duct fan 11 through the external main control board.

[0027] The above embodiment discloses an integrated heat dissipation component for the duct blowing of a 3D printer tool head. When the printer starts nozzle heating, and the nozzle temperature exceeds 40 degrees Celsius, the printer main control board issues a command to start the throat cooling. Then, the duct fan 11 can start in low power mode to meet the throat cooling requirements. Since there is no need for a blowing fan at this time, the valve plate 15 closes the blowing air duct.

[0028] When the printer is printing, the duct fan 11 will run at full power. When it is necessary to blow material to cool down during the printing process, the printer main controller issues a command to use the servo motor 16 to control the opening and closing of the valve plate 15, thereby controlling the flow rate of the blowing duct.

[0029] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A 3D printer tool head duct blowing and heat dissipation integrated assembly, comprising a wind tunnel shell (12), a duct fan (11) is installed at the air inlet pipe of the wind tunnel shell (12), and a heat dissipation box is communicated on the wind tunnel shell (12), characterized in that, The heat dissipation box is internally provided with a heat dissipation component, and the air duct shell (12) is provided at the other end with an adjusting mechanism for adjusting the exhaust capacity of the air duct shell (12).

2. The 3D printer tool head integrated air channeling and heat dissipation assembly of claim 1, wherein, The heat dissipation component comprises heat dissipation fins (14), and the heat dissipation box is provided with openings on both sides, a plurality of limiting rods are arranged at the opening end of one side of the heat dissipation box, the heat dissipation fins (14) are arranged in the heat dissipation box, and a mounting plate (13) is mounted at the opening of the other side of the heat dissipation box.

3. The 3D printer tool head integrated air channeling and heat dissipation assembly of claim 1, wherein, The adjusting mechanism comprises a valve piece (15), a mounting shaft is rotatably arranged at the middle position of one end of the air duct shell (12), the mounting shaft is hollow, a mounting groove is arranged on the mounting shaft, the valve piece (15) is mounted in the mounting groove, one end of the mounting shaft is fixedly connected with the output end of a servo motor (16), the servo motor (16) is fixedly connected with the air duct shell (12) through screws (17), a wind duct baffle (18) is arranged on one side of the valve piece (15), and the wind duct baffle (18) is fixedly arranged in the air duct shell (12).

4. The 3D printer tool head integrated air channeling and heat dissipation assembly of claim 3, wherein, The wind duct baffle (18) is eccentrically arranged at the mounting position in the air duct shell (12).

5. The 3D printer tool head integrated air channeling and heat dissipation assembly of claim 4, wherein, The distances between the valve piece (15) on both sides and the axis of the mounting shaft are not equal.

6. The 3D printer tool head integrated air channeling and heat dissipation assembly of claim 5, wherein, The servo motor (16) is internally provided with a control board, the duct fan (11) is electrically connected with the servo motor (16), and the servo motor (16) is electrically connected with an external main control board.

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