3D printing nozzle with blowing structure

Abstract

The utility model relates to the technical field of three-dimensional printing, in particular to a 3D printing spray head with an air blowing structure. Comprising a box body, a driving piece in driving connection with the box body, a throat pipe communicated with the box body, a nozzle arranged on the throat pipe, a heat dissipation cover arranged on the driving piece and arranged on the outer side of the throat pipe in a sleeving mode, a fan arranged on the outer side of the heat dissipation cover and a plurality of air blowing nozzles arranged at an air outlet of the fan. The air blowing nozzles are arranged around the periphery of the heat dissipation cover to form an air blowing space, and the driving piece drives the throat pipe to penetrate through the heat dissipation cover so that the nozzles can stretch into the air blowing space in a protruding mode. The cooling device is compact in structure and reasonable in design, centralized air blowing is carried out on the nozzles through the multiple air blowing nozzles, the cooling effect is good, and the productivity benefit of finished products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional printing, in particular to a 3D printing nozzle with an air blowing structure. Background Art

[0002] With the continuous development of 3D printing technology, it has been widely used in various industries. A 3D printer is a machine that achieves rapid prototyping of finished products within this technology. Based on a digital model file, it uses adhesive materials such as special wax, powdered metal, or plastic. The 3D printer heats and melts the filamentary hot-melt material, which is then extruded through a nozzle and deposited on a workbench. When the temperature drops below the curing temperature, it begins to solidify and form, ultimately creating the finished product through the accumulation of layers of material. Existing 3D printers often need to move the finished product to a fixed area for natural heat dissipation and cooling after production. This occupies a large space and has low heat dissipation and cooling efficiency, affecting the production efficiency of the finished product. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a 3D printing nozzle with a blowing structure, which has a compact structure and a reasonable design. The nozzle is blown centrally through multiple blowing nozzles, which has a good heat dissipation and cooling effect, thereby improving the production efficiency of the finished product.

[0004] To achieve the above-mentioned purpose, the utility model provides a 3D printing nozzle with a blowing structure, comprising a box body, a driving member connected to the box body, a throat communicated with the box body, a nozzle arranged in the throat, a heat dissipation hood arranged on the driving member and sleeved on the outside of the throat, a fan arranged on the outside of the heat dissipation hood, and a blowing nozzle arranged at the air outlet of the fan, wherein a plurality of blowing nozzles are provided, and the plurality of blowing nozzles are arranged around the circumference of the heat dissipation hood to form a blowing space, and the driving member drives the throat to pass through the heat dissipation hood so that the nozzle protrudes into the blowing space.

[0005] Preferably, a material injection port is provided on the outside of the box body, a first infrared sensor and a second infrared sensor are provided at intervals on the box body, a control valve is provided at the connection between the box body and the throat, and the control valve is electrically connected to the first infrared sensor and the second infrared sensor.

[0006] Preferably, a top cover is hingedly connected to one side of the box body, and the top cover is provided with a locking clip. A locking clamp is provided on the other side of the box body, and a movable buckle is provided at one end of the locking clamp close to the locking clip.

[0007] Preferably, there are three blowing nozzles, and the connecting line between the three blowing nozzles is a triangle.

[0008] Preferably, the heat dissipation cover is provided with a heat dissipation groove, and a plurality of the heat dissipation grooves are provided, and the plurality of heat dissipation grooves are arranged at intervals along the length direction of the heat dissipation cover.

[0009] The beneficial effects of the utility model are as follows: the structure is compact and the design is reasonable, the nozzle is blown centrally through multiple blowing nozzles, the heat dissipation and cooling effect is good, and the production efficiency of the finished product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 This is a structural schematic diagram from another angle of the present invention.

[0012] Reference numerals include:

[0013] 1——Box body 11——Filling port 12——First infrared sensor

[0014] 13——Second infrared sensor 14——Control valve 15——Top cover

[0015] 16——locking clip 17——locking chuck 18——movable buckle

[0016] 2 - driving part 3 - throat 4 - nozzle

[0017] 5——heat dissipation cover 51——heat dissipation slot

[0018] 6——Fan 7——Blower nozzle. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 2 As shown, the utility model is a 3D printing nozzle with a blowing structure, including a box body 1, a driving member 2 driven and connected to the box body 1, a throat 3 communicated with the box body 1, a nozzle 4 arranged in the throat 3, a heat dissipation cover 5 arranged on the driving member 2 and sleeved on the outside of the throat 3, a fan 6 arranged on the outside of the heat dissipation cover 5 and a blowing nozzle 7 arranged at the air outlet of the fan 6, wherein the blowing nozzle 7 is provided in plurality, and the plurality of blowing nozzles 7 are arranged around the circumference of the heat dissipation cover 5 to form a blowing space, and the driving member 2 drives the throat 3 to pass through the heat dissipation cover 5 so that the nozzle 4 protrudes into the blowing space.

[0021] During operation, plastic granules are first injected into the box body 1. The plastic granules are heated and melted by a heater installed in the box body 1. The melted plastic granules flow along the throat 3 and are then extruded through the nozzle 4. Since multiple blowing nozzles 7 are arranged around the circumference of the heat dissipation cover 5 to form a blowing space, when the driving member 2 drives the throat 3 through the heat dissipation cover 5, the nozzle 4 protrudes into the blowing space, and the multiple blowing nozzles 7 are used to blow and cool the material extruded from the nozzle 4 from different directions, thereby increasing the subsequent cooling and molding rate and reducing the space occupied by the heat dissipation of the finished product. The utility model has a compact structure and a reasonable design. The multiple blowing nozzles 7 are used to centrally blow air to the nozzle 4, which has a good heat dissipation and cooling effect, thereby improving the production efficiency of the finished product.

[0022] In this embodiment, a material injection port 11 is provided on the outside of the box body 1. A first infrared sensor 12 and a second infrared sensor 13 are provided at intervals on the box body 1. A control valve 14 is provided at the connection between the box body 1 and the throat 3. The control valve 14 is electrically connected to the first infrared sensor 12 and the second infrared sensor 13. Specifically, an external injection mechanism injects an appropriate amount of plastic granular material into the interior of the box body 1 through the material injection port 11. The first infrared sensor 12 and the second infrared sensor 13 are arranged one above the other on the outside of the box body 1. When the second infrared sensor 13 senses the plastic granular material, the second infrared sensor 13 sends a detection signal to the control system, which controls the control valve 14 to open, thereby facilitating the melted plastic granular material to flow along the throat 3 to the nozzle 4. When the first infrared sensor 12 senses the plastic granular material, the first infrared sensor 12 sends a detection signal to the control system, which controls the external injection mechanism to stop injecting material, thereby preventing the material from overflowing from the box body 1 due to excessive injection, thereby improving work safety performance.

[0023] In this embodiment, a top cover 15 is hingedly connected to one side of the box body 1. The top cover 15 is provided with a locking clip 16. A locking clamp 17 is provided on the other side of the box body 1. The locking clamp 17 is provided with a movable buckle 18 at one end near the locking clip 16. Specifically, when the top cover 15 flips up and down around the box body 1, the locking clamp 17 swings up and down around the box body 1. The locking clamp 17 is fastened and pressed against the locking clip 16 via the movable buckle 18, thereby locking and fixing the top cover 15 to the box body 1, preventing materials from accidentally falling from the box body 1 to the outside of the top cover 15.

[0024] In this embodiment, there are three blowing nozzles 7, and the lines connecting the three blowing nozzles 7 form a triangle. Specifically, the lines connecting the three blowing nozzles 7 form a triangle, which has good structural stability. The nozzle 4 is located in the middle of the three blowing nozzles 7, which helps the three blowing nozzles 7 to perform centralized blowing cooling on the nozzle 4, resulting in high cooling efficiency.

[0025] The heat dissipation cover 5 of this embodiment is provided with a plurality of heat dissipation slots 51, which are spaced apart along the length of the heat dissipation cover 5. Specifically, the heat dissipation slots 51 are spaced apart along the length of the heat dissipation cover 5, and the heat dissipation cover 5 is sleeved on the outside of the throat pipe 3. The plurality of heat dissipation slots 51 accelerates the air flow rate, quickly dissipating heat from the throat pipe 3, thereby achieving both heat dissipation and protection for the throat pipe 3.

[0026] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A 3D printing nozzle with an air blowing structure, characterized in that: It includes a box body, a driving member connected to the box body, a throat communicated with the box body, a nozzle arranged on the throat, a heat dissipation cover arranged on the driving member and sleeved on the outside of the throat, a fan arranged on the outside of the heat dissipation cover, and a blowing nozzle arranged at the air outlet of the fan. There are multiple blowing nozzles, and the multiple blowing nozzles are arranged around the circumference of the heat dissipation cover to form a blowing space. The driving member drives the throat to pass through the heat dissipation cover so that the nozzle protrudes into the blowing space.

2. The 3D printing nozzle with an air blowing structure according to claim 1, characterized in that: A material injection port is provided on the outer side of the box body, a first infrared sensor and a second infrared sensor are provided at intervals on the box body, a control valve is provided at the connection between the box body and the throat, and the control valve is electrically connected to the first infrared sensor and the second infrared sensor.

3. The 3D printing nozzle with an air blowing structure according to claim 2, characterized in that: A top cover is hingedly connected to one side of the box body, and a locking clip is provided on the top cover. A locking clamp is provided on the other side of the box body, and a movable buckle is provided on one end of the locking clamp close to the locking clip.

4. The 3D printing nozzle with an air blowing structure according to claim 1, characterized in that: There are three blowing nozzles, and the connection line between the three blowing nozzles is a triangle.

5. The 3D printing nozzle with an air blowing structure according to claim 1, characterized in that: The heat dissipation cover is provided with a heat dissipation groove, and a plurality of the heat dissipation grooves are provided. The plurality of heat dissipation grooves are arranged at intervals along the length direction of the heat dissipation cover.

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