CN217622212U

CN217622212U - 3D printing spray head device

Info

Publication number: CN217622212U
Application number: CN202221236481.2U
Authority: CN
Inventors: 陈希; 陈国贵; 林若波; 梁镇燊; 肖茂胜
Original assignee: Jieyang Vocational & Technical College; Jieyang Anmaisi Technology Co ltd
Current assignee: Jieyang Vocational & Technical College; Jieyang Anmaisi Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-10-21
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a 3D prints shower nozzle device, including chamfer angle rectangle fin, screw thread choke, pan head hexagon socket head cap screw, heating piece, nozzle. The thread throat pipe of the device is connected with the chamfered rectangular radiating fin and the heating block; the pan head inner hexagon screw is connected with the chamfered rectangular radiating fin and the heating block, so that the connection strength is improved; the nozzle is fastened on the threaded hole of the heating block through threads. The device has the advantages of high temperature resistance, high printing speed, convenience in installation and the like.

Description

3D printing nozzle device

Technical Field

The utility model relates to a 3D printing device technical field especially relates to a high-speed 3D print head device of high temperature that can be used to FDM.

Background

The FDM fused deposition modeling printing technology has the advantages of being simple to operate, flexible and customizable, high in modeling speed and the like, and becomes the 3D printing technology which is the most widely applied at present. The 3D printing material increase technology is developing towards the direction of saving energy, being convenient to use, saving space, being safe and efficient and the like. The hot end is an important member in continuous and stable work of the 3D printer, and in the process of extruding the industrial FDM printing nozzle, materials are firstly ensured to be melted to a proper degree, so that strict corresponding relations exist between different materials and heating temperatures, and the temperature control of the printing head is particularly important.

In the 21 st century, science and technology are rapidly developed, the types of materials for 3D printing are continuously increased, and the processing complexity is continuously increased. 3D printing materials are continuously abundant in variety, from plastic wire, nylon, rubber, food and the like, to metal materials, high polymer materials and ceramic materials. The wide use of special metal materials has driven the growth that industrial level 3D printer sells, promotes 3D to print and makes market expansion to high-end by the consumer grade market, and the application field of 3D printing will constantly expand. Therefore, a 3D printing nozzle device which can withstand high temperature, has high mechanical strength and is high in printing efficiency is required.

Disclosure of Invention

In order to solve the technical problem, the utility model aims to improve the printing temperature and the printing speed of the sprayer device.

The purpose of the utility model is realized through the following technical scheme: A3D printing spray head device comprises a chamfered rectangular radiating fin, a threaded throat pipe, a pan head hexagon socket head cap screw, a heating block and a nozzle.

The rectangular fin of chamfer angle comprises 10 thin and 1 thickened chamfer angles rectangle, and the chamfer angle rectangle of thickening has 2 locating holes, and two fin division have the screw hole that corresponds with the heating block below the rectangular fin of chamfer angle.

The upper thread of the threaded throat pipe is connected with a threaded hole of the rectangular radiating fin with the chamfered corner, and the lower thread of the threaded throat pipe is connected with a threaded hole of the heating block;

the pan head inner hexagonal screws are 2 in number, and are connected with the screw holes of the rectangular radiating fins with the inverted corners through the screw holes of the heating block, so that the structural strength is improved, and the moving stability of the heating block during working is improved;

heating block upper surface center has 1 screw hole, and level, vertical direction have 2 locating holes and 2 screw holes respectively.

The nozzle is fastened in a threaded hole of the heating block through threads.

Preferably, the usable spanner of screw thread choke rotates at the bayonet socket, and screw thread choke passes through screw thread fastening connection with chamfer angle rectangle fin and heating block, simple to operate, and screw thread heat-conduction under the reinforcing is less.

Further preferably, the threaded throat pipe is made of copper alloy and titanium alloy, so that the threaded throat pipe has higher hardness, wear resistance, corrosion resistance and high temperature resistance, and is durable and energy-saving; the upper end of the bayonet of the threaded throat pipe is made of a titanium alloy material, the titanium alloy material has strong heat blocking capacity and good comprehensive mechanical property, the lower end part of the bayonet of the threaded throat pipe is made of a copper alloy material, and the copper alloy material has strong heat conducting property; the throat pipe is smooth and burr-free, and the printing and withdrawing resistance is small.

Preferably, the surface of the heating block is square, the side length is 18-20cm, the thickness is 12-14cm, the thread length of the nozzle is two thirds of the height of the heating block, the lower thread length of the threaded throat pipe is one third of the height of the heating block, the large length of the printing material in a molten state is guaranteed, and the wire discharging speed is high.

Compared with the prior art, the utility model has the advantages of as follows:

(1) The printing consumables are solid when entering the thread throat, the heating block transfers heat of the electric heating tube to the thread throat and the nozzle, and the thread throat and the nozzle further transfer the heat to the printing materials to heat the printing materials to a semi-molten state. Because the threaded throat pipe is made of two materials of copper alloy and titanium alloy, the upper threaded part has strong heat blocking capacity, and throat pipe fittings such as Teflon can be omitted. The rectangular radiating fins with the inverted corners are matched with the radiating fan, so that the radiating area is large, the radiating capacity is high, and the printing material in the upper thread section can be ensured to be in a solid state.

(2) The height of the heating block is 12 to 14cm, the threaded hole is positioned in the center of the upper surface, the thread length of the nozzle is two thirds of the height of the heating block, and the lower thread length of the thread throat pipe is one third of the height of the heating block; the heat of the electric heating tube is transferred to the nozzle and the throat tube through the heating block with high efficiency, and the printing material has enough long molten state at the section, so that the rapid filament discharging is ensured.

(3) The threaded throat pipe made of the copper alloy and the titanium alloy has higher hardness, wear resistance, corrosion resistance and high temperature resistance, is durable and energy-saving, and can be applied to printing 500 ⁰ C~600 ⁰ C, can be installed on 3D printers that exist on numerous markets.

Drawings

Fig. 1 3d prints an exploded view of the showerhead arrangement;

FIG. 2 is an effect diagram of a chamfered rectangular heat sink;

FIG. 3 is a view showing the effect of a threaded throat;

FIG. 4 is a diagram of the effect of the heating block;

reference numerals: the heat radiating device comprises 1 chamfered rectangular radiating fin, 101 positioning hole, 102 threaded hole, 103 threaded hole, 2 threaded throat, 201 upper thread, 202 lower thread, 203 bayonet, 3 heating block, 301 threaded hole, 302 electric heating pipe hole, 303 temperature sensor hole, 304 threaded hole, 305 positioning hole, 4 nozzle and 5 pan head hexagon socket head cap screw.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1, 2, 3 and 4, the 3D printing head device includes five components, namely a chamfered rectangular heat sink, a threaded throat pipe, a pan head hexagon socket head cap screw, a heating block and a nozzle.

The rectangular heat sink 1 with chamfered corners is composed of 10 thin and 1 thickened rectangular heat sink with chamfered corners, the thickened rectangular heat sink with chamfered corners has 2 positioning holes 101, and two heat sinks below the rectangular heat sink 1 with chamfered corners are provided with screw holes 103 corresponding to the heating block.

The upper thread 201 of the thread throat pipe 2 is connected with the thread hole 103 of the rectangular radiating fin 1 with the inverted corner, and the lower thread 202 is connected with the thread hole 301 of the heating block 3.

The center of the upper surface of the heating block 3 is provided with 1 threaded hole 301, and the horizontal direction and the vertical direction are respectively provided with 2

positioning holes

305 and 2 threaded holes 304.

The nozzle 4 is fastened on a threaded hole 301 on the lower surface of the heating block 3 through threads; the threaded throat pipe 2 can be sleeved on the bayonet 203 by a wrench to rotate, the lower thread 202 is fastened on the threaded hole 301 on the upper surface of the heating block 3, and the upper thread 201 is fastened on the screw hole 101 of the chamfered rectangular radiating fin 1; the pan head hexagon socket screw 5 is connected with the screw hole 103 of the rectangular radiating fin 1 with the chamfered corner through the screw hole 304 of the heating block 3; the screw fixes the position of the temperature sensor in the temperature sensor hole 303 and the position of the electrothermal tube in the electrothermal tube hole 302 through the positioning hole 305; the entire head device is mounted on the printer through the positioning hole 101.

During operation, the printing consumables are solid when entering the thread throat 2, after the heating temperature is set, the power supply is switched on, the heating block 3 transfers the heat of the electric heating tube to the thread throat 2 and the nozzle 4, and the thread throat 2 and the nozzle 4 further transfer the heat to the printing consumables to be heated to a semi-molten state. The threaded throat pipe 2 is made of copper alloy and titanium alloy, the upper threaded part 201 has strong heat blocking capacity, and the chamfered rectangular radiating fins 1 are matched with a radiating fan, so that the radiating capacity is strong, and the printing material at the section of the throat pipe can be ensured to be in a solid state; and materials in the nozzle thread section and the lower thread section of the thread throat are in a molten state, the molten material is extruded from the nozzle under the action of extrusion force, and the material starts to solidify after the temperature is lower than the solidification temperature and is stacked on the workbench layer by layer to form a final finished product.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a 3D prints shower nozzle device, includes chamfer angle rectangle fin, screw thread choke, pan head hexagon socket head cap screw, heating piece, nozzle, its characterized in that:

the chamfered rectangular radiating fins are composed of 10 pieces of even and thin chamfered rectangular fins and 1 piece of thickened chamfered rectangular fins, the thickened chamfered rectangular fins are provided with two positioning holes, and the lower 2 pieces of chamfered rectangular radiating fins are provided with screw holes; the threaded throat pipe is sleeved on the bayonet by using a wrench, the upper thread is connected with a threaded hole of the rectangular radiating fin with the chamfered corner, and the lower thread is connected with a threaded hole of the heating block; the pan head inner hexagon screw is connected with the chamfered rectangular radiating fin screw hole through the screw hole of the heating block, so that the moving stability of the heating block during working is improved; the nozzle is connected with the heating block through a threaded hole of the heating block.

2. The 3D printing nozzle device of claim 1, wherein:

the surface of the heating block is square, the side length is 18 to 20cm, and the thickness is 12 to 14cm.

3. The 3D printing nozzle device of claim 1, wherein:

the nozzle is made of copper alloy materials, and the length of the thread of the nozzle is two thirds of the thickness of the heating block.

4. The 3D printing nozzle device of claim 1, wherein:

the length of the lower thread of the threaded throat pipe is one third of the thickness of the heating block, and a bayonet is formed in a circular ring at the upper end of the lower thread.