Shaping equipment

Abstract

The utility model provides shaping equipment which comprises a shell, the shell is provided with a shaping cavity, a main air inlet, a feeding port and a discharging port, the main air inlet, the feeding port and the discharging port are communicated with the shaping cavity, and the main air inlet provides compressed air for the shaping cavity; the spraying pipe is arranged on the shell, the first end of the spraying pipe communicates with the main air inlet, and the second end of the spraying pipe faces the shaping cavity; the cutter is rotationally arranged in the shaping cavity shell; the feeding end of the dust collecting device is communicated with the discharging opening; the control valve is arranged below the discharging end of the dust collecting device and used for collecting materials discharged from the discharging end, the control valve is provided with a collecting outlet and a circulating outlet which can be switched and communicated, the circulating outlet is communicated with the feeding port, and the collecting outlet is used for being communicated with a material collecting device. The problems that in the prior art, shaping equipment is low in shaping efficiency and complex in production line are solved.

Description

Technical Field

[0001] The utility model relates to the field of graphite processing, in particular to a shaping device. Background Art

[0002] Graphite, as a negative electrode material for lithium-ion batteries, has long been a primary source of negative electrode materials due to its excellent conductivity, superior charge-discharge voltage platform, high specific capacity, and low price. The sphericity of graphite particles is directly related to battery performance, including capacity, initial efficiency, and charge-discharge rate. Improving the sphericity of graphite particles has become a goal of the negative electrode material processing industry. Currently, spherical graphite production typically utilizes multiple tandem airflow vortex mills, resulting in complex production lines, or employs only airflow shaping equipment, resulting in low shaping efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a shaping device to solve the problems of low shaping efficiency and complex production lines of shaping devices in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a shaping device is provided, which includes a shaping mechanism. The shaping mechanism includes a shell, a nozzle and a tool. The shell has a shaping cavity and a main air inlet, a feed port and a discharge port connected to the shaping cavity. The main air inlet provides compressed air for the shaping cavity; the nozzle is arranged on the shell, the first end of the nozzle is connected to the main air inlet, and the second end of the nozzle is arranged toward the shaping cavity; the tool is rotatably arranged inside the shaping cavity shell; the dust collecting device, the feed end of the dust collecting device is connected to the discharge port; the control valve, the control valve is arranged below the discharge end of the dust collecting device for collecting material discharged from the discharge end, the control valve has a collection outlet and a circulation outlet that can be switched, the circulation outlet is connected to the feed port, and the collection outlet is used to communicate with the material collecting device.

[0005] Furthermore, the shell includes an outer shell, and the main air inlet is arranged on the outer shell; an inner shell, which is arranged inside the outer shell, and a guide area is formed between the outer shell and the inner shell, the main air inlet is connected to the guide area, and the nozzle is arranged on the inner shell, and the first end of the nozzle is connected to the guide area; a cover plate, which is arranged on the outer shell and the inner shell, and the cover plate and the inner shell cooperate to form a shaping cavity, and the cover plate is provided with a feed port and a discharge port.

[0006] Furthermore, there are multiple nozzles, which are spaced apart along the circumference of the inner shell; and / or the axis of the inner shell and the discharge port are coaxial.

[0007] Furthermore, the inner wall of the inner shell is a smooth arc surface; or a plurality of protrusions are arranged on the inner wall of the inner shell at intervals along the circumference of the inner shell.

[0008] Furthermore, when a plurality of protrusions are arranged at intervals on the inner wall of the inner shell, the protrusions are rectangular protrusions, trapezoidal protrusions or arc-shaped protrusions.

[0009] Furthermore, the air flow velocity of the nozzle is 340m / s-1020m / s; and / or the rotational linear velocity of the tool is less than or equal to 150m / s; and / or the angle between the nozzle and the inner shell radial direction is β, 20°<β<90°; and / or the nozzle is a Laval tube.

[0010] Furthermore, the rotation direction of the tool is the same as the air flow direction of the nozzle.

[0011] Furthermore, the shaping equipment also includes a feeding assembly, which includes a feeding pipe, the feeding pipe is connected to the feeding port, and the end of the feeding pipe away from the feeding port is connected to the driving member to provide air pressure for the feeding pipe; a feeding hopper, the bottom opening of the feeding hopper is connected to the feeding pipe, and the top opening of the feeding hopper is connected to the circulation outlet.

[0012] Furthermore, the feed pipe is a Venturi tube or a Lafayette nozzle; and / or the air pressure of the feed pipe is less than or equal to the air pressure of the main air inlet.

[0013] Furthermore, the tool includes a tool holder and a plurality of blades detachably arranged on the tool holder, and the plurality of blades are arranged at intervals along the circumferential direction and / or axial direction of the tool holder.

[0014] Furthermore, the blade is straight, arc-shaped or angled.

[0015] Furthermore, the dust collecting device includes a cylinder body, which has a connecting port, an air outlet and a discharge end at the bottom, and the connecting port is connected to the discharge port; a filter cartridge, which is arranged inside the cylinder body, and the filter cartridge divides the cylinder body into a discharge area and a clean air area, the connecting port is connected to the discharge area, the control valve is arranged at the discharge area of ​​the cylinder body, and the air outlet is connected to the clean air area; a recoil assembly, which is connected to the clean air area and provides airflow, and the airflow provided by the recoil assembly is used to drive the material to move toward the discharge end; a valve body, which is arranged at the discharge end to control the opening and closing of the discharge end.

[0016] Furthermore, the connecting port is arranged on the side wall of the cylinder, and the air outlet is arranged on the side wall of the cylinder, and the connecting port is arranged in the area between the air outlet and the discharge end.

[0017] Furthermore, the connecting port and the discharge port are connected via an air pipe; and / or the shaping equipment further comprises a fan, which is connected to the air outlet and provides negative pressure for the dust collecting device.

[0018] Furthermore, the control valve includes a collection hopper, the top opening of the collection hopper is larger than the bottom opening, and the top opening is arranged below the discharge end for material collection; a three-way reversing valve, the inlet of the three-way reversing valve is connected to the bottom opening, and the two outlets of the three-way reversing valve are respectively a collection outlet and a circulation outlet.

[0019] The application of the technical solution of the utility model achieves the following technical effects:

[0020] Air pressure is provided to the inside of the shell through the main air inlet, and the air pressure drives the material (mainly spherical graphite) to collide and rub against the inner wall of the shell, or the materials to collide and rub against each other, so as to achieve the shaping of the material. At the same time, since a rotating tool is provided inside the shell, the material collides and rubs against the tool driven by the high-speed airflow, and the material is shaped by the tool, which improves the effect of removing edges and rounding the material and improves the working efficiency of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 The figure shows the overall structure of the shaping device in one embodiment of the present invention;

[0023] Figure 2 Shown Figure 1 a cross-sectional view of the middle shell;

[0024] Figure 3 A cross-sectional view of the housing in another direction in one embodiment of the present invention is shown;

[0025] Figure 4 Shows a schematic structural diagram of a tool in one embodiment of the present utility model;

[0026] Figure 5 It shows a schematic structural diagram of the inner shell in one embodiment of the present utility model;

[0027] Figure 6 The following is a schematic structural diagram of a dust collecting device in one embodiment of the present invention;

[0028] Figure 7 The figure shows a schematic structural diagram of a control valve in one embodiment of the present utility model.

[0029] The above drawings include the following reference numerals:

[0030] 10. Shell; 11. Outer shell; 12. Inner shell; 121. Protrusion; 13. Cover plate; 14. Diversion area; 15. Shaping cavity; 16. Main air inlet; 17. Discharge port; 18. Feed port; 20. Nozzle; 30. Tool; 31. Tool holder; 32. Blade; 40. Dust collecting device; 41. Cylinder; 411. Connecting port; 412. Air outlet; 413. Discharge end; 42. Filter cartridge; 421. Clean air area; 422. Discharge area; 43. Backflush assembly; 44. Valve body; 50. Control valve; 51. Aggregate hopper; 52. Three-way reversing valve; 60. Feed assembly; 61. Feed pipe; 62. Feed hopper; 70. Fan. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as commonly understood by those skilled in the art to which the present invention belongs.

[0033] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0034] In order to solve the problems of low shaping efficiency and complex production lines of shaping equipment in the prior art, the present invention provides a shaping equipment.

[0035] See also Figures 1 to 3 The shaping equipment includes a shaping mechanism and a dust collecting device 40. The shaping mechanism includes a shell 10, a nozzle 20, and a tool 30. The shell 10 has a shaping chamber 15 and a main air inlet 16, a feed port 18 and a discharge port 17 connected to the shaping chamber 15. The main air inlet 16 provides air pressure for the shaping chamber 15. The nozzle 20 is arranged on the shell 10. The first end of the nozzle 20 is connected to the main air inlet 16, and the second end of the nozzle 20 is arranged toward the shaping chamber 15. The tool 30 is rotatably arranged inside the shaping chamber 15 shell 10. The feed end of the dust collecting device 40 is connected to the discharge port 17. The control valve 50 is arranged below the discharge end 413 of the dust collecting device 40 for collecting material discharged from the discharge end 413. The control valve 50 has a collection outlet and a circulation outlet that can be switched on. The circulation outlet is connected to the feed port 18, and the collection outlet is used to be connected to the material collecting device.

[0036] Compressed air is provided to the inside of the shell 11 through the main air inlet 16. The compressed air drives the material (mainly spherical graphite) to collide and rub against the inner wall of the shell 10, or the materials to collide and rub against each other, so as to shape the material. At the same time, since a rotating tool 30 is provided inside the shell 10, the material collides and rubs against the tool 30 under the drive of the high-speed airflow, and the tool 30 is used to shape the material, thereby improving the effect of removing edges and rounding the material and improving the working efficiency of the entire equipment.

[0037] Powdered material enters the shaping chamber 15 through the feed port 18. Driven by compressed air entering the main air inlet 16, the material is shaped within the shaping chamber 15. The material, shaped by the cutter 30, is then driven by the airflow through the discharge port 17 and into the dust collector 40. The dust collector 40 collects the powdered material and discharges it through the control valve 50. The control valve 50 has two outlets: a recirculation outlet, which allows the material to re-enter the shaping chamber 15 through the feed port 18; and a collection outlet, which connects to the material collection device to collect the finished material. During operation, the control valve 50 first opens the recirculation outlet, allowing the material to pass through the shaping chamber 15 multiple times and be shaped. After a period of time, the material is tested. If the material meets the test standards, the recirculation outlet is closed and the collection outlet is opened to collect the material. If it does not meet the test standards, the recirculation outlet remains open and the material continues to be shaped.

[0038] In the present invention, the shell 10 includes an outer shell 11, an inner shell 12 and a cover plate 13. The main air inlet 16 is arranged on the outer shell 11, the inner shell 12 is arranged inside the outer shell 11, and a guide area 14 is formed between the outer shell 11 and the inner shell 12. The main air inlet 16 is connected to the guide area 14. The nozzle 20 is arranged on the inner shell 12, and the first end of the nozzle 20 is connected to the guide area 14. The cover plate 13 is covered on the outer shell 11 and the inner shell 12. The cover plate 13 and the inner shell 12 cooperate to form a shaping cavity 15. The cover plate 13 is provided with a feed port 18 and a discharge port 17.

[0039] Specifically, by providing the inner shell 12, a guide area 14 is formed between the outer shell 11 and the inner shell 12. This guide area 14 can guide the airflow from the main intake pipe, preventing it from directly blowing the material in the shaping chamber 15. Instead, the airflow is guided by the guide area 14 before entering the shaping chamber 15, changing the direction of the airflow and better blowing the material. Furthermore, when there are multiple nozzles 20, the guide area 14 can balance the airflow from the multiple nozzles 20 with the airflow inside the shaping chamber 15, reducing the occurrence of pressure imbalance in the shaping chamber 15.

[0040] In the present invention, multiple nozzles 20 are provided, spaced apart along the circumference of the inner shell 12. High-pressure gas entering the shaping chamber 15 from the main air inlet pipe drives the material into collision and friction with the cutter 30 and the inner wall of the inner shell 12 within the shaping chamber 15. To uniformly distribute the high-pressure airflow within the shaping chamber 15, multiple nozzles 20 are provided. By transporting the high-pressure airflow within the shaping chamber 15 through the multiple nozzles 20, the airflow velocity at each location within the shaping chamber 15 can be uniformed, thereby improving the shaping effect on the material.

[0041] In the present invention, the axis of the inner shell 12 and the discharge port 17 are coaxial. When the airflow flows inside the inner shell 12, the air pressure at the main air inlet pipe is higher, while the air pressure at the center axis of the inner shell 12 is lower. During the discharge process, the airflow drives the material from the high-pressure area to the low-pressure area. By aligning the axis of the inner shell 12 and the discharge port 17 coaxially, the air pressure at the discharge port 17 is minimized, which can facilitate the discharge of the material.

[0042] See also Figure 5 , the inner wall of the inner shell 12 is a smooth arc surface; or along the circumference of the inner shell 12, the inner wall of the inner shell 12 is provided with a plurality of protrusions 121 at intervals.

[0043] Specifically, when the material moves within the shaping chamber 15, it collides with the inner wall of the inner shell 12, thereby shaping the material. Although a smooth curved inner wall can meet the material shaping requirements, in order to further improve the material shaping effect, a plurality of protrusions 121 are provided at intervals on the inner wall of the inner shell 12. The material collides with the protrusions 121, thereby improving the material shaping effect. Preferably, the protrusions 121 are rectangular protrusions 121, trapezoidal protrusions 121, or circular arc-shaped protrusions 121.

[0044] In the present invention, the air flow velocity of the nozzle 20 is 340m / s-1020m / s, the rotational linear velocity of the tool 30 is less than or equal to 150m / s, the radial angle between the nozzle 20 and the inner shell 12 is β, 20°<β<90°, and the nozzle 20 is a Laval tube.

[0045] Specifically, the airflow velocity of the nozzle 20 needs to be significantly greater than the rotational speed of the cutter 30, creating a significant velocity difference between the cutter 30 and the airflow. This allows the material to collide with the cutter 30 at a higher initial velocity, improving the shaping effect on the material. Furthermore, a certain radial angle needs to be formed between the nozzle 20 and the inner shell 12. This allows the material to rotate along the circumference of the shaping cavity 15 after entering the shaping cavity 15, thereby increasing the chance of collision between the material and the cutter 30 and improving the shaping effect on the material.

[0046] In the present invention, the rotation direction of the cutter 30 is the same as the airflow direction of the nozzle 20 .

[0047] Since the cutter 30 generates an airflow during its rotation, the direction of this airflow is the same as the direction of rotation of the cutter 30. By aligning the rotation direction of the cutter 30 with the direction of the airflow from the nozzle 20, it is possible to avoid expansion between the two airflows flowing in different directions, thereby preventing airflow turbulence. This allows the material to be stably carried by the airflow.

[0048] See also Figure 2 The shaping equipment also includes a feeding assembly 60, which includes a feeding pipe 61 and a feeding hopper 62. The feeding pipe 61 is connected to the feeding port 18, and one end of the feeding pipe 61 away from the feeding port 18 is connected to the driving member to provide air pressure for the feeding pipe 61. The bottom opening of the feeding hopper 62 is connected to the feeding pipe 61, and the top opening of the feeding hopper 62 is connected to the circulation outlet.

[0049] Specifically, the material to be processed is located in the feed hopper 62 and then enters the feed pipe 61 through the feed hopper 62. The air pressure provided by the feed pipe 61 allows the material to enter the shaping chamber 15, thereby feeding the material. At the same time, the opening at the top of the feed hopper 62 is also connected to the circulation outlet, facilitating the re-entry of the material in the dust collection device 40 into the shaping chamber 15. The air pressure provided by the feed pipe 61 primarily assists in feeding. Since the shaping chamber 15 is in a high-pressure environment, it is difficult for the material in the air intake pipe to directly enter the shaping chamber 15. Therefore, a driving member is provided at the end of the feed pipe 61 away from the feed port 18 to provide air pressure, thereby facilitating the entry of the material in the air intake pipe into the shaping chamber 15.

[0050] In the present invention, the feed pipe 61 is a venturi tube, and the air pressure in the feed pipe 61 is less than or equal to the air pressure in the main air inlet 16. The air pressure in the feed pipe 61 is mainly for auxiliary feeding, so the pressure does not need to be too high, and can meet the feeding demand.

[0051] See also Figure 4 The tool 30 includes a tool holder 31 and a plurality of blades 32 detachably disposed on the tool holder 31 . The plurality of blades 32 are spaced apart along the circumference and / or axial direction of the tool holder 31 .

[0052] By providing a plurality of blades 32, the frequency of collision between the material and the blades 32 can be increased, thereby improving the shaping effect of the material. At the same time, since the blades 32 are detachably connected to the tool holder 31, the blades 32 are easy to replace.

[0053] In the present invention, the blade 32 is straight, curved or angled. By providing blades 32 of different shapes, it is possible to select a suitable blade 32 for different usage requirements, thereby improving the versatility of the device.

[0054] See also Figure 6 The dust collecting device 40 includes a cylinder 41, a filter cartridge 42, a backflush assembly 43 and a valve body 44. The cylinder 41 is provided with a connecting port 411, an air outlet 412 and a discharge end 413 at the bottom. The connecting port 411 is connected to the discharge port 17. The filter cartridge 42 is arranged inside the cylinder 41. The filter cartridge 42 divides the cylinder 41 into a discharge area 422 and a clean air area 421. The connecting port 411 is connected to the discharge area 422. The control valve 50 is arranged at the discharge area 422 of the cylinder 41, the air outlet 412 is connected to the clean air area 421, the backflush assembly 43 is connected to the clean air area 421 and provides airflow. The airflow provided by the backflush assembly 43 is used to drive the material to move toward the discharge end 413. The valve body 44 is arranged at the discharge end 413 to control the opening and closing of the discharge end 413.

[0055] Specifically, after the material processed by the shaping chamber 15 enters the cylinder 41, the filter cartridge 42 blocks the material, trapping it outside the filter cartridge 42. The airflow then passes through the filter cartridge 42 and is discharged. The filter cartridge 42 divides the interior of the cylinder 41 into a discharge area 422 and a clean air area 421. The collection area collects the material blocked by the filter cartridge 42, while the clean air area 421 discharges the airflow after passing through the filter cartridge 42. The backflush assembly 43 provides reverse airflow, blowing off material adhering to the surface of the filter cartridge 42 for easier collection.

[0056] In the present invention, the connection port 411 and the air outlet 412 are provided on the side wall of the cylinder 41 , and the connection port 411 is provided in the area between the air outlet 412 and the discharge end 413 .

[0057] By arranging the connection port 411 in the area between the inlet and outlet and the discharge end 413 , the air containing the material entering the filter cartridge 42 can fully contact the filter cartridge 42 .

[0058] In the present invention, the connection port 411 is connected to the discharge port 17 via an air pipe; the shaping device further includes a fan 70 , which is connected to the air outlet 412 , and the fan 70 provides negative pressure for the dust collecting device 40 .

[0059] Specifically, considering the actual layout, there will be a certain gap between the housing 10 and the dust collector 40. It is necessary to connect the discharge port 17 of the housing 10 and the connection port 411 of the dust collector 40 through an air pipe to facilitate the transportation of materials. The fan 70 provides negative pressure to the dust collector 40 to facilitate the discharge of the airflow entering the cylinder 41.

[0060] See also Figure 7The control valve 50 includes a collecting hopper 51, the top opening of the collecting hopper 51 is larger than the bottom opening, and the top opening is arranged below the discharge end 413 for material collection; a three-way reversing valve 52, the inlet of the three-way reversing valve 52 is connected to the bottom opening, and the two outlets of the three-way reversing valve 52 are respectively a collection outlet and a circulation outlet.

[0061] Specifically, the collection hopper 51 collects the material collected by the dust collector 40 and then tests the material. When the material meets the requirements, the three-way valve is in the collection outlet open position. When the material does not meet the requirements, the three-way valve is in the circulation outlet open position, allowing the material to enter the housing 10 for further processing. The combination of the collection hopper 51 and the three-way valve facilitates material testing and facilitates the discharge and collection of different finished products.

[0062] From the above description, it can be seen that the present invention achieves the following technical effects:

[0063] 1. Compressed air is provided to the inside of the shell 11 through the main air inlet 16. The compressed air drives the material (mainly spherical graphite) to collide and rub with the inner wall of the shell 10, or the materials to collide and rub with each other, so as to achieve the shaping of the material. At the same time, since a rotating tool 30 is provided inside the shell 10, the material collides and rubs with the tool 30 under the drive of the high-speed airflow, and the tool 30 is used to shape the material, thereby improving the effect of removing edges and rounding the material and improving the working efficiency of the entire equipment.

[0064] 2. The inner wall of the inner shell 12 is provided with a plurality of protrusions 121 at intervals. The collision between the material and the protrusions 121 further improves the shaping effect of the material.

[0065] 3. By providing multiple blades 32, the frequency of collision between the material and the blades 32 can be increased, thereby improving the shaping effect of the material. At the same time, since the blades 32 are detachably connected to the blade holder 31, the blades 32 can be easily replaced.

[0066] 4. By repeatedly shaping the material, the material can be continuously rubbed and expanded, and the material can be repeatedly shaped to improve the shaping effect of the material, making the final shaped material closer to the actual demand.

[0067] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0068] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0069] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A plastic surgery device, characterized in that: include: A shaping mechanism, comprising a shell (10), a nozzle (20) and a cutter (30); the shell (10) having a shaping cavity (15) and a main air inlet (16), a feed port (18) and a discharge port (17) in communication with the shaping cavity (15); the main air inlet (16) providing air pressure for the shaping cavity (15); the nozzle (20) being arranged on the shell (10); a first end of the nozzle (20) being in communication with the main air inlet (16); a second end of the nozzle (20) being arranged toward the shaping cavity (15); and the cutter (30) being rotatably arranged inside the shell (10) of the shaping cavity (15); A dust collecting device (40), wherein a feed end of the dust collecting device (40) is in communication with the discharge port (17); A control valve (50) is provided below the discharge end (413) of the dust collecting device (40) for collecting materials discharged from the discharge end (413), the control valve (50) having a collection outlet and a circulation outlet that can be switched, the circulation outlet being in communication with the feed port (18), and the collection outlet being in communication with the material collecting device.

2. The plastic surgery device according to claim 1, characterized in that The housing (10) comprises: a housing (11), wherein the main air inlet (16) is provided on the housing (11); an inner shell (12), the inner shell (12) being arranged inside the outer shell (11), a flow guide area (14) being formed between the outer shell (11) and the inner shell (12), the main air inlet (16) being in communication with the flow guide area (14), the nozzle (20) being arranged on the inner shell (12), the first end of the nozzle (20) being in communication with the flow guide area (14); A cover plate (13) is provided on the outer shell (11) and the inner shell (12); the cover plate (13) and the inner shell (12) body (10) cooperate to form the shaping cavity (15); and the cover plate (13) is provided with the feed port (18) and the discharge port (17).

3. The plastic surgery device according to claim 2, characterized in that The nozzles (20) are multiple in number and are spaced apart along the circumference of the inner shell (12); and / or The axis of the inner shell (12) and the discharge port (17) are coaxial; and / or The inner wall of the inner shell (12) is a smooth arc surface; or Along the circumference of the inner shell (12), a plurality of protrusions (121) are arranged at intervals on the inner wall of the inner shell (12).

4. The plastic surgery device according to claim 3, characterized in that When a plurality of protrusions (121) are arranged at intervals on the inner wall of the inner shell (12), the protrusions (121) are rectangular protrusions (121), trapezoidal protrusions (121) or circular arc protrusions (121).

5. The plastic surgery device according to claim 1, characterized in that The rotation direction of the tool (30) is the same as the airflow direction of the nozzle (20).

6. The plastic surgery device according to claim 1, characterized in that The shaping device further comprises a feeding assembly (60), wherein the feeding assembly (60) comprises: A feed pipe (61), the feed pipe (61) is in communication with the feed port (18), and one end of the feed pipe (61) away from the feed port (18) is connected to a driving member to provide air pressure for the feed pipe (61); A feed hopper (62), wherein the bottom opening of the feed hopper (62) is communicated with the feed pipe (61), and the top opening of the feed hopper (62) is communicated with the circulation outlet.

7. The plastic surgery device according to any one of claims 1 to 6, characterized in that: The tool (30) comprises a tool holder (31) and a plurality of blades (32) detachably arranged on the tool holder (31), wherein the plurality of blades (32) are arranged at intervals along the circumference and / or axial direction of the tool holder (31).

8. The plastic surgery device according to any one of claims 1 to 6, characterized in that: The dust collecting device (40) comprises: A cylinder (41), the cylinder (41) having a connecting port (411), an air outlet (412), and the discharge end (413) at the bottom, the connecting port (411) being in communication with the discharge port (17); A filter cartridge (42), the filter cartridge (42) being arranged inside the cylinder (41), the filter cartridge (42) dividing the cylinder (41) into a discharge area (422) and a clean air area (421), the connecting port (411) being in communication with the discharge area (422), the air outlet (412) being in communication with the clean air area (421), the connecting port (411) and the air outlet (412) being arranged on a side wall of the cylinder (41), and the connecting port (411) being arranged in an area between the air outlet (412) and the discharge end (413), and the control valve (50) being arranged below the discharge area (422) of the cylinder (41); a recoil assembly (43), the recoil assembly (43) being in communication with the clean air region (421) and providing an airflow, wherein the airflow provided by the recoil assembly (43) is used to drive the material to move toward the discharge end (413); A valve body (44) is provided at the discharge end (413) for controlling the opening and closing of the discharge end (413).

9. The plastic surgery device according to claim 8, characterized in that The connecting port (411) is connected to the discharge port (17) via an air pipe; and / or The shaping device further comprises a fan (70), the fan (70) being in communication with the air outlet (412), and the fan (70) providing negative pressure for the dust collecting device (40).

10. The plastic surgery device according to claim 8, characterized in that The control valve (50) comprises: An aggregate hopper (51), wherein the top opening of the aggregate hopper (51) is larger than the bottom opening, and the top opening is arranged below the discharge end (413) for collecting materials; A three-way reversing valve (52), wherein the inlet of the three-way reversing valve (52) is communicated with the bottom opening, and the two outlets of the three-way reversing valve (52) are respectively the collection outlet and the circulation outlet.

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