Ultrahigh-speed directional binder spray deposition additive manufacturing device and method

Abstract

The invention discloses an ultra-high-speed directional binder spray deposition additive manufacturing device and method, and belongs to the technical field of intelligent manufacturing. The device comprises a powder feeding system, a deposition system and a binder supply system, the deposition system comprises an annular coaxial powder sprayer and a binder atomization ejector, the annular coaxial powder sprayer surrounds the binder atomization ejector in the circumferential direction, a powder spraying opening of the annular coaxial powder sprayer faces an ejection opening of the binder atomization ejector, and the axes of the annular coaxial powder sprayer and the ejection opening of the binder atomization ejector coincide; a jet orifice of the binder atomization ejector and a powder spraying port of the annular coaxial powder sprayer are located on the same horizontal plane, the powder feeding system is communicated with the annular coaxial powder sprayer, and the binder supply system is communicated with the binder atomization ejector. According to the binder spray deposition additive manufacturing device, synchronous spraying of the raw material powder and the binder is achieved, and after the raw material powder and the binder form powder-coated rubber coupling formation, the manufacturing efficiency is remarkably improved, and the forming effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent manufacturing, and relates to an ultra-high-speed directional binder jet deposition additive manufacturing device and method. Background Art

[0002] Binder jetting technology is a powder bed-based 3D additive manufacturing technology. It sprays a binder onto a powder bed to bond a layer of powder in selected areas. Each layer of powder is then combined with the previous powder layer through the penetration of the binder to form a three-dimensional structure layer by layer.

[0003] Binder jetting technology can be used to manufacture components such as polymer materials, metals, and ceramic materials. It has advantages such as good powder compatibility, less process constraints on structural design, and high forming quality. Compared with laser powder bed fusion additive manufacturing, binder jetting technology only needs to be carried out at room temperature and atmospheric conditions, with relatively low process requirements. It can also avoid problems such as the reduction of the properties of formed parts caused by metal oxidation, composition deviation caused by element separation, and difficulties in process control brought about by complex thermal cycles. Therefore, binder jetting technology has received wide attention and has been applied in many fields.

[0004] Although binder jetting technology, as an advanced technology of 3D additive manufacturing technology, has many advantages, currently, binder jetting technology still manufactures components through the process of laying a powder bed and then spraying a binder onto the powder bed. By manufacturing components through the aforementioned process, on the one hand, regardless of the specific structure of the component, during the process of laying the powder bed, the entire powder layer needs to be laid (i.e., powder spreading needs to cover the entire working area). When the size of the component increases, due to the final three-dimensional structure of the component, the increase in the size of the component will bring about a "volume effect" in which the consumption of raw material powder increases cubically. For example, to manufacture a special-shaped component with a size of 1m×1m×1m and a layer thickness of 0.1mm, 10,000 layers need to be laid, and the volume of each layer of powder is 1×1×0.0001 = 0.0001m 3 , and the total powder amount reaches 1m 3 . However, only 10% of the volume of the actual component may be a solid structure, and the remaining 90% is ineffective powder, resulting in material waste and soaring costs. Moreover, by manufacturing components through the aforementioned process, the laying of raw material powder and the binder are not synchronized. After each layer of powder bed is laid, it is necessary to wait for the binder to be sprayed, and each layer of powder bed needs to cover the entire working area, resulting in low forming efficiency. At the same time, when the binder is sprayed alone, during the ultra-high-speed spraying process, the binder beam is greatly affected by air resistance, easily leading to poor forming effects or even the situation where forming cannot be achieved.

[0005] Therefore, it is necessary to provide a super-high-speed directional binder jet deposition additive manufacturing device and method, which simultaneously eject raw material powder and binder, and form a powder-binder coupling mode of "powder wrapping binder", so as to realize the combination of raw material powder and binder, and further solve the "volume effect" and low efficiency problems caused by traditional manufacturing methods. At the same time, during the process of manufacturing components by super-high-speed jetting, the forming effect is improved, thereby enhancing the quality of the components. Summary of the Invention

[0006] To overcome the problems in the background technology, the present invention simultaneously ejects raw material powder and binder through a powder-binder ejector, forms a coupling form of "powder wrapping binder", and directly deposits at the required position to obtain the corresponding component. There is no need to lay the raw material powder to cover the entire working area, and there is no need for redundant powder support, effectively reducing the consumption of raw material powder and reducing the amount of ineffective powder used (for example, the solid volume of the component is 0.1 m 3 , and the amount of raw material powder used is also about 0.1 m 3 ), improving the utilization rate of raw material powder, thereby solving the "volume effect" problem. At the same time, the powder laying time is saved, effectively improving the manufacturing efficiency of components, and the coupling mode of raw material powder and binder of "powder wrapping binder" can form an "air sheath" for the outer powder flow, reducing the direct resistance of air to the internal binder beam flow, and improving the forming quality during the process of manufacturing components by super-high-speed jetting.

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] On the one hand, the present invention provides a super-high-speed directional binder jet deposition additive manufacturing device, which includes a powder feeding system, a deposition system, and a binder supply system. The deposition system includes a powder-binder ejector 3. The powder-binder ejector 3 includes an annular coaxial powder ejector 4 and a binder atomizing ejector 5. The annular coaxial powder ejector 4 circumferentially surrounds the binder atomizing ejector 5. The powder ejected by the annular coaxial powder ejector 4 is directed towards the binder ejected by the binder atomizing ejector 5. The axis of the binder atomizing ejector 5 coincides with the axis of the annular coaxial powder ejector 4, and the ejection port of the binder atomizing ejector 5 and the powder ejection port of the annular coaxial powder ejector 4 are located on the same horizontal plane. The powder feeding system is connected to the annular coaxial powder ejector 4 through a pipeline, and the binder supply system is connected to the binder atomizing ejector 5 through a pipeline. The deposition system and the binder supply system are both communicatively connected to the control system.

[0009] Preferably, the powder feeding system includes a gas source 1 and a powder feeder 2. An inlet powder pipe 6 is arranged on the side wall of the annular coaxial powder ejector 4. The gas source 1 and the powder feeder 2 are connected through a pipeline. The gas source 1 provides driving force for powder transportation, and the powder feeder 2 is connected to the inlet powder pipe 6 of the annular coaxial powder ejector 4 through a powder feeding pipe 8.

[0010] Preferably, the gas source 1 is an inert gas.

[0011] Preferably, the powder adhesive injector 3 further includes a gas injector 16. The gas injector 16 surrounds the annular coaxial powder injector 4 in the circumferential direction. The gas ejected by the gas injector 16 is directed towards the adhesive atomizing injector 5. The axis of the gas injector 16 coincides with the axis of the annular coaxial powder injector 4, and the gas ejection port of the gas injector 16 and the powder ejection port of the annular coaxial powder injector 4 are located on the same horizontal plane. An air inlet pipe 17 is provided on the side wall of the gas injector 16, and the gas source 1 is communicated with the air inlet pipe 17 through a pipeline.

[0012] Preferably, the adhesive supply system includes an air compressor 10 and a pressure vessel 11. An adhesive inlet 7 is provided on the side wall of the adhesive atomizing injector 5. The air compressor 10 is communicated with the pressure vessel 11 and the adhesive atomizing injector 5 respectively through pipelines. The pressure vessel 11 is communicated with the adhesive inlet 7 of the adhesive atomizing injector 5 through a glue delivery pipe 9. The air compressor 10 is communicatively connected to the control system.

[0013] Preferably, the deposition system includes a robotic arm 12, a positioning platform 13, and a linear slide rail 14. The powder adhesive injector 3 is fixedly installed on the robotic arm 12. The positioning platform 13 is fixedly connected to the slider of the linear slide rail 14, and the positioning platform 13 is located below the powder adhesive injector 3. The materials ejected by the powder adhesive injector 3 are deposited on the positioning platform 13. The linear slide rail 14 is fixedly installed on the installation surface. The robotic arm 12, the positioning platform 13, and the linear slide rail 14 are communicatively connected to the control system.

[0014] Preferably, the positioning platform 13 includes a platform body 18, a horizontal connecting cylinder 19, and a vertical connecting rod 20. The platform body 18 is rotatably connected to the horizontal connecting cylinder 19. The platform body 18 is driven by a first motor fixedly installed in the horizontal connecting cylinder 19 and rotates around the axis of the platform body 18. One end of the horizontal connecting cylinder 19 is hinged to the vertical connecting rod 20. The horizontal connecting cylinder 19 is driven by a third motor fixedly installed on the vertical connecting rod 20 and rotates around the hinge point. The other end of the vertical connecting rod 20 is fixedly connected to the slider of the linear slide rail 14. The first motor and the third motor are communicatively connected to the control system.

[0015] Preferably, the linear slide rail 14 includes a slide rail body 21, a second motor 22, and a ball screw 15. The output end of the second motor 22 is fixedly connected to one end of the ball screw 15. The ball screw 15 is parallel to the track of the slide rail body 23 and the ball screw 15 is threadedly connected to the slider of the slide rail body 23. The second motor 22 is communicatively connected to the control system.

[0016] Another aspect of the present invention provides an ultra-high speed directional binder jet deposition additive manufacturing method, which is manufactured using the ultra-high speed directional binder jet deposition additive manufacturing device, and the manufacturing method comprises the following steps:

[0017] (1) Add raw material powder to the powder feeding system, add binder to the binder supply system, input the three-dimensional slice data of the component to be manufactured into the control system, set the powder feeding parameters of the powder feeding system and the binder supply parameters, start the powder feeding system, the deposition system, and the binder supply system, the powder feeding system conveys the raw material powder to the annular coaxial powder sprayer 4 through the powder feeding pipe 8 according to the powder feeding parameters, and at the same time, the binder supply system conveys the binder to the binder atomizing injector 5 according to the binder supply parameters, the raw material powder is sprayed from the annular coaxial powder sprayer 4, and the binder is sprayed from the binder atomizing injector 5 to form a powder-encapsulated glue, and the control system controls the deposition system to spray the powder-encapsulated glue to different positions for deposition according to the three-dimensional slice data to obtain a deposited entity;

[0018] (2) Sintering the deposited solid obtained in step (1) to obtain a component.

[0019] Preferably, the powder feeding pressure of the powder feeding system is 0.7-10 MPa.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention designs a powder-glue injector so that the raw material powder and the binder can be sprayed out at the same time, and a "powder-encapsulated-glue" coupling form of raw material powder and binder is formed, which effectively solves the "volume effect" problem and significantly improves the component manufacturing efficiency and the binder spray deposition additive manufacturing forming quality.

[0022] 2. The present invention shortens the delay between steps by synchronously ejecting raw material powder and binder in combination with machinery, displacement platforms, and linear slides with high movement speed and movement accuracy, and can achieve a nearly continuous binder spray deposition additive manufacturing process.

[0023] 3. The present invention drives the binder to be atomized and sprayed out by compressed gas, disperses the binder into smaller droplets, and combines the ultra-high-speed spray inertia to help reduce the influence of air resistance on the droplet deposition trajectory, thereby improving the deposition accuracy.

[0024] 4. The present invention does not require the use of heat sources such as lasers and electric arcs, and can avoid defects such as cracking and deformation of materials with large thermal expansion coefficients during rapid melting and solidification, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the manufacturing device of the present invention;

[0026] Figure 2 This is an enlarged view of the powder glue injector of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the powder glue sprayer from top view of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the powder glue sprayer of the present invention when viewed from the bottom;

[0029] Figure 5 It is a schematic diagram of the connection structure between the platform body and the horizontal connection tube of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure between the horizontal connecting tube and the vertical connecting rod of the present invention.

[0031] In the figure, 1-air source, 2-powder feeder, 3-powder glue injector, 4-annular coaxial powder injector, 5-adhesive atomizing injector, 6-powder inlet pipe, 7-glue inlet, 8-powder feeding pipe, 9-glue delivery pipe, 10-air compressor, 11-pressure vessel, 12-mechanical arm, 13-displacement platform, 14-linear slide rail, 15-ball screw, 16-gas injector, 17-inlet pipe, 18-platform body, 19-horizontal connecting tube, 20-vertical connecting rod, 21-slide rail body, 22-second motor. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited to the contents described above.

[0033] Example 1

[0034] In this embodiment, Al2O3 with a particle size of 50 to 200 μm is used. 2 O 3 Ceramic powder, TiO 2 A mixed powder of ceramic powders is used as raw material powder.

[0035] The binder of this embodiment is polyacrylic acid (PAA) binder, and the binder concentration is determined according to actual needs. The binder is prepared by adding polyacrylic acid into distilled water, stirring it continuously, heating it to 90° C., keeping it warm for 2 hours, and then cooling it at room temperature.

[0036] like Figure 1-6As shown in the figure, the ultra-high-speed directional adhesive jet deposition additive manufacturing device includes a powder feeding system, a deposition system, and a binder supply system. The deposition system includes a powder-binder ejector 3, and the powder-binder ejector 3 includes an annular coaxial powder ejector 4 and a binder atomizing ejector 5. The annular coaxial powder ejector 4 circumferentially surrounds the binder atomizing ejector 5. The powder ejected by the annular coaxial powder ejector 4 is directed towards the binder ejected by the binder atomizing ejector 5. The axis of the binder atomizing ejector 5 coincides with the axis of the annular coaxial powder ejector 4, and the ejection port of the binder atomizing ejector 5 and the powder ejection port of the annular coaxial powder ejector 4 are located on the same horizontal plane. The powder feeding system is connected to the annular coaxial powder ejector 4 through a pipeline, and the binder supply system is connected to the binder atomizing ejector 5 through a pipeline. Both the deposition system and the binder supply system are communicatively connected to the control system.

[0037] The powder feeding system includes a gas source 1 and a powder feeder 2. An inlet powder pipe 6 is provided on the side wall of the annular coaxial powder ejector 4. The gas source 1 and the powder feeder 2 are connected through a pipeline. The gas source 1 provides drive for powder transportation. The powder feeder 2 is connected to the inlet powder pipe 6 of the annular coaxial powder ejector 4 through a powder feeding pipe 8.

[0038] The gas source 1 is an inert gas.

[0039] The powder-binder ejector 3 further includes a gas ejector 16. The gas ejector 16 circumferentially surrounds the annular coaxial powder ejector 4. The gas ejected by the gas ejector 16 is directed towards the binder ejected by the binder atomizing ejector 5. The axis of the gas ejector 16 coincides with the axis of the annular coaxial powder ejector 4, and the ejection port of the gas ejector 16 and the powder ejection port of the annular coaxial powder ejector 4 are located on the same horizontal plane. An inlet gas pipe 17 is provided on the side wall of the gas ejector 16. The gas source 1 is connected to the inlet gas pipe 17 through a pipeline. The gas source 1 provides gas for the gas ejector 16, and the gas is ejected from the gas ejection port of the gas ejector 16, which can blow the raw material powder ejected by the annular coaxial powder ejector 4 towards the ejection port of the binder atomizing ejector 5, thereby further strengthening the contact between the binder and the raw material powder to form a "powder-coated glue".

[0040] The binder supply system includes an air compressor 10 and a pressure vessel 11. An inlet glue port 7 is provided on the side wall of the binder atomizing ejector 5. The air compressor 10 is connected to the pressure vessel 11 and the binder atomizing ejector 5 respectively through pipelines. The pressure vessel 11 is connected to the inlet glue port 7 of the binder atomizing ejector 5 through a glue delivery pipe 9. The air compressor 10 is communicatively connected to the control system.

[0041] The deposition system includes a robotic arm 12, a positioning platform 13, and a linear slide rail 14. The powder adhesive injector 3 is fixedly installed on the robotic arm 12. The positioning platform 13 is fixedly connected to the slider of the linear slide rail 14, and the positioning platform 13 is located below the powder adhesive injector 3. The material ejected from the powder adhesive injector 3 is deposited on the positioning platform 13. The linear slide rail 14 is fixedly installed on the installation surface. The robotic arm 12, the positioning platform 13, and the linear slide rail 14 are communicatively connected to the control system. The robotic arm 12 has six degrees of freedom, and the fastest moving speed can reach 200 mm / s. The operating speed of the linear slide rail 14 is 400 - 600 mm / s. The slider of the linear slide rail 14 can slide rapidly back and forth along the track. The positioning platform 13 has two degrees of freedom. The combination of the robotic arm 12, the positioning platform 13, and the linear slide rail 14 can achieve nine-axis linkage and can move rapidly and flexibly in three-dimensional space. Thus, the powder adhesive injector 3 installed on the robotic arm 12 can achieve ultra-high-speed directional binder jet deposition additive manufacturing of components.

[0042] The positioning platform 13 includes a platform body 18, a horizontal connecting cylinder 19, and a vertical connecting rod 20. The platform body 18 is rotatably connected to the horizontal connecting cylinder 19. The platform body 18 is driven by a first motor fixedly installed in the horizontal connecting cylinder 19 and rotates around the axis of the platform body 18. One end of the horizontal connecting cylinder 19 is hinged to the vertical connecting rod 20. The horizontal connecting cylinder 19 is driven by a third motor fixedly installed on the vertical connecting rod 20, and the horizontal connecting cylinder 19 rotates around the hinge point. The other end of the vertical connecting rod 20 is fixedly connected to the slider of the linear slide rail 14. The first motor and the third motor are communicatively connected to the control system. The platform body 18 rotates around its axis, and the horizontal connecting cylinder 19 is hinged to the vertical connecting rod 20, so that the horizontal connecting cylinder 19 can rotate in the vertical plane, thereby driving the platform body 18 to rotate around the hinge point, forming two degrees of freedom of the positioning platform 13.

[0043] The linear slide rail 14 includes a slide rail body 21, a second motor 22, and a ball screw 15. The output end of the second motor 22 is fixedly connected to one end of the ball screw 15. The ball screw 15 is parallel to the track of the slide rail body 23 and the ball screw 15 is threadedly connected to the slider of the slide rail body 23. The second motor 22 is communicatively connected to the control system. After the second motor 22 is started, it drives the ball screw 15 to rotate. Since the ball screw 15 is threadedly connected to the slider, the rotation of the ball screw 15 will drive the slider to slide on the track.

[0044] Using the ultra-high-speed directional binder jet deposition additive manufacturing device of the present invention to manufacture components:

[0045] (1) Add the raw material powder into the powder storage bin of the powder feeder 2, add the binder into the pressure vessel 11, input the three-dimensional slice data of the component to be manufactured into the control system, set the powder feeding parameters using the powder feeder 2, and set the binder supply parameters through the control system.

[0046] (2) Open the gas source 1, start the powder feeder 2, air compressor 10, robotic arm 12, indexing platform 13, and linear slide rail 14. The gas source 1 conveys gas to the powder feeder 2 to provide driving force for the conveyance of the raw material powder. The powder feeder 2 conveys the raw material powder through the powder delivery pipe 8 to the annular coaxial powder injector 4 according to the preset powder feeding parameters and the raw material powder is ejected from the annular coaxial powder injector 4. At the same time, the air compressor 10 conveys compressed air to the pressure vessel 11 and the binder atomizing injector 5 respectively (the conveyance of the binder is mainly driven by the compressed air provided by the air compressor 10, and the control system can control the operation of the air compressor 10 according to the preset binder supply parameters). The binder in the pressure vessel 11 is conveyed to the binder atomizing injector 5 through the glue delivery pipe 9 under the driving action of the compressed air. Under the action of the compressed air, the binder is atomized and ejected from the binder atomizing injector 5. Since the annular coaxial powder injector 4 circumferentially surrounds the binder atomizing injector 5, the powder ejection port of the annular coaxial powder injector 4 faces the ejection port of the binder atomizing injector 5, and the ejection port of the binder atomizing injector 5 and the powder ejection port of the annular coaxial powder injector 4 are on the same horizontal plane, the ejected raw material powder is concentrated towards the binder ejected at the center. When the raw material powder and the binder are ejected, a "powder-in-glue" coupling form of the raw material powder and the binder can be formed, and then it is deposited on the indexing platform 13 for forming. During the forming process, the control system can automatically control the movement of the robotic arm 12, indexing platform 13, and linear slide rail 14 according to the preset three-dimensional slice data of the component to be manufactured, and a deposited component is prepared.

[0047] (3) Put the deposited component into a high-temperature sintering furnace and sinter it at 1500 °C for 8 h to improve the density and strength of the deposited component, and finally a ceramic component is prepared.

[0048] Example 2

[0049] In this example, 304 stainless steel powder with a particle size of 15 - 53 μm is used as the raw material powder.

[0050] In this example, the same PAA binder as in Example 1 is used, and the binder concentration is determined according to actual requirements.

[0051] The specific process of manufacturing a component using the ultra-high-speed directional binder jet deposition additive manufacturing device of the present invention in this example is the same as that in Example 1.

[0052] The specific sintering method in this example is as follows:

[0053] The deposited component is placed in a high-temperature sintering furnace and sintered using a staged sintering process: first, the sintering temperature is increased to 400°C at a heating rate of 3°C / min to completely pyrolyze the binder; then, the sintering temperature is increased to 1200°C at a heating rate of 8°C / min and kept for 1 hour to promote the pre-sintering of 304 stainless steel powder; finally, under argon protection, the temperature is cooled to below 200°C with the furnace, and the cooling rate is controlled to ≤5°C / min to avoid cracking caused by thermal stress.

[0054] In summary, the present invention relies on the optimization and improvement of the injector structure in the binder jet deposition additive manufacturing device to achieve the synchronous injection of raw material powder and binder and form a "powder-encapsulated" coupling between the raw material powder and the binder, and then deposit them on the displacement platform to manufacture components, thereby effectively solving the negative impact of the "volume effect", significantly improving manufacturing efficiency, and improving the forming effect, which helps to ultimately improve the quality of manufactured components.

[0055] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An ultra-high-speed directional binder jet deposition additive manufacturing device, characterized in that: The ultra-high-speed directional adhesive jet deposition additive manufacturing device comprises a powder feeding system, a deposition system, and an adhesive supply system. The deposition system comprises a powder glue jet (3). The powder glue jet (3) comprises an annular coaxial powder jet (4) and an adhesive atomizing jet (5). The annular coaxial powder jet (4) surrounds the adhesive atomizing jet (5) in a circumferential direction. The powder sprayed by the annular coaxial powder jet (4) is directed toward the adhesive sprayed by the adhesive atomizing jet (5). The axis of the adhesive atomizing jet (5) coincides with the axis of the annular coaxial powder jet (4), and the spray port of the adhesive atomizing jet (5) and the powder spray port of the annular coaxial powder jet (4) are located in the same horizontal plane. The powder feeding system is connected to the annular coaxial powder jet (4) through a pipeline. The adhesive supply system is connected to the adhesive atomizing jet (5) through a pipeline. The deposition system and the adhesive supply system are both connected to a control system in a communication manner.

2. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 1, characterized in that: The powder feeding system comprises an air source (1) and a powder feeder (2). A powder feeding pipe (6) is arranged on the side wall of the annular coaxial powder sprayer (4). The air source (1) is connected to the powder feeder (2) through a pipeline. The air source (1) provides drive for powder transportation. The powder feeder (2) is connected to the powder feeding pipe (6) of the annular coaxial powder sprayer (4) through a powder feeding pipe (8).

3. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 2, characterized in that: The gas source (1) is an inert gas.

4. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 2, characterized in that: The powder glue sprayer (3) also includes a gas sprayer (16), the gas sprayer (16) surrounds the annular coaxial powder sprayer (4) in the circumferential direction, the gas sprayed by the gas sprayer (16) is directed toward the adhesive sprayed by the adhesive atomizing sprayer (5), the axis of the gas sprayer (16) coincides with the axis of the annular coaxial powder sprayer (4), and the spray port of the gas sprayer (16) and the powder spray port of the annular coaxial powder sprayer (4) are located in the same horizontal plane, an air inlet pipe (17) is arranged on the side wall of the gas sprayer (16), and the gas source (1) is connected to the air inlet pipe (17) through a pipeline.

5. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 1, characterized in that: The adhesive supply system comprises an air compressor (10) and a pressure container (11); a glue inlet (7) is arranged on the side wall of the adhesive atomizing injector (5); the air compressor (10) is connected to the pressure container (11) and the adhesive atomizing injector (5) respectively through pipelines; the pressure container (11) is connected to the glue inlet (7) of the adhesive atomizing injector (5) through a glue delivery pipe (9); and the air compressor (10) is connected to a control system for communication.

6. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 1, characterized in that: The deposition system comprises a mechanical arm (12), a displacement platform (13), and a linear slide rail (14); the powder glue injector (3) is fixedly mounted on the mechanical arm (12); the displacement platform (13) is fixedly connected to a slider of the linear slide rail (14); the displacement platform (13) is located below the powder glue injector (3); the material ejected by the powder glue injector (3) is deposited on the displacement platform (13); the linear slide rail (14) is fixedly mounted on a mounting surface; and the mechanical arm (12), the displacement platform (13), and the linear slide rail (14) are communicatively connected to a control system.

7. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 6, characterized in that: The displacement platform (13) includes a platform body (18), a horizontal connecting tube (19), and a vertical connecting rod (20). The platform body (18) is rotatably connected to the horizontal connecting tube (19). The platform body (18) is driven by a first motor fixedly installed in the horizontal connecting tube (19) and rotates around the axis of the platform body (18). The horizontal connecting tube (19) is hinged to one end of the vertical connecting rod (20). The horizontal connecting tube (19) is driven by a third motor fixedly installed on the vertical connecting rod (20). The horizontal connecting tube (19) rotates around the hinge point. The other end of the vertical connecting rod (20) is fixedly connected to the slider of the linear slide rail (14). The first motor and the third motor are communicatively connected to the control system.

8. The ultra-high speed directional binder spray deposition additive manufacturing device according to claim 6, characterized in that: The linear slide rail (14) comprises a slide rail body (21), a second motor (22), and a ball screw (15); the output end of the second motor (22) is fixedly connected to one end of the ball screw (15); the ball screw (15) is parallel to the track of the slide rail body (23); the ball screw (15) is threadedly connected to the slider of the slide rail body (23); and the second motor (22) is communicatively connected to a control system.

9. An ultra-high speed directional binder jet deposition additive manufacturing method, characterized in that: The manufacturing method is performed using the ultra-high speed directional binder spray deposition additive manufacturing device according to any one of claims 1 to 6, and the manufacturing method comprises the following steps: (1) adding raw material powder into a powder feeding system, adding a binder into a binder supply system, inputting three-dimensional slice data of a component to be manufactured into a control system, setting powder feeding parameters of the powder feeding system and binder supply parameters, starting the powder feeding system, the deposition system, and the binder supply system, wherein the powder feeding system conveys the raw material powder to an annular coaxial powder sprayer (4) through a powder feeding pipe (8) according to the powder feeding parameters, and at the same time, the binder supply system conveys the binder into a binder atomizing injector (5) according to the binder supply parameters, the raw material powder is sprayed out from the annular coaxial powder sprayer (4), and the binder is sprayed out from the binder atomizing injector (5) to form a powder-encapsulated glue, and the control system controls the deposition system to spray the powder-encapsulated glue to different positions for deposition according to the three-dimensional slice data to obtain a deposited entity; (2) Sintering the deposited solid obtained in step (1) to obtain a component.

10. The manufacturing method according to claim 9, characterized in that: The powder feeding pressure of the powder feeding system is 0.7-10 MPa.

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