A vibrating sieving device for metal powder in metal 3D printing

Abstract

This invention provides a metal powder vibrating sieving device for metal 3D printing, comprising: a touch screen mounted on the front end of a sheet metal frame, an upper support mounted around the top, and a circuit module and an air circuit module disposed inside the sheet metal frame; a vibrating screen body formed in a hemispherical shape and fixed to the upper end of the sheet metal frame; an upper powder storage box mounted above the upper support and having a powder storage box air inlet quick connector at its top, the upper powder storage box being connected to the upper part of the vibrating screen body; a lower powder storage box disposed at the lower end of the sheet metal frame and connected to the lower part of the vibrating screen body, having a powder storage box air outlet quick connector at its bottom, and a lower support connected to the outer side of the lower powder storage box; an exhaust gas filter device mounted at the bottom of the sheet metal frame and connected to the vibrating screen body; and a powder loading device disposed at the lower end of the sheet metal frame and having one end connected to the lower powder storage box. According to the embodiments of the present invention, the metal powder vibrating sieving device allows for the setting of sieving parameters via a touch screen, and in conjunction with 3D printing equipment, achieves automated metal powder sieving and 3D printing operations.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and more specifically to a metal powder vibrating sieving device for metal 3D printing. Background Technology

[0002] In metal 3D printing, the quality and particle size distribution of the metal powder are crucial to the performance and quality of the printed parts. Inappropriate powder quality and particle size distribution can lead to defects and inhomogeneities in the printed parts. Therefore, to obtain high-quality printing results, the metal powder needs to be sieved to remove unsuitable particles and impurities. Vibrating screen technology is a commonly used method, which uses a combination of vibration and a screen to sieve the metal powder. Specifically, the vibration force generated by the vibrating mechanism places the metal powder on the screen, and the powder is separated according to the size of the screen's aperture. Smaller particles can pass through the screen's aperture, while larger particles and impurities are retained above the screen. Currently, commercially available vibrating screen devices are not well compatible with automated metal 3D printing processes. Furthermore, vibrating screens have low structural strength, poor sealing performance, and lack inert gas protection and exhaust gas filtration devices during the sieving process. Summary of the Invention

[0003] In view of this, the present invention provides a metal powder vibrating sieving device for metal 3D printing, which is compatible with the automated process of metal 3D printing, has high structural strength, good sealing performance, high safety and high environmental protection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vibrating sieving device for metal powder in metal 3D printing according to an embodiment of the present invention includes:

[0006] A sheet metal frame, wherein a touch screen is provided at the front end of the sheet metal frame, and multiple upper brackets are installed around the top. A circuit module and an air circuit module are provided inside the sheet metal frame.

[0007] The vibrating screen body is formed in a hemispherical shape and fixed to the upper end of the sheet metal frame for screening metal powder;

[0008] The upper powder storage box is detachably installed above the upper support and has a quick-connect air inlet connector at its top. The upper powder storage box is connected above the vibrating screen body.

[0009] The lower powder storage box is located at the lower end of the sheet metal frame and connected to the lower part of the vibrating screen body. The bottom of the lower powder storage box is provided with a quick-connect vent for the powder storage box. Multiple lower supports are detachably connected to the outside of the lower powder storage box.

[0010] An exhaust gas filtration device is installed at the bottom of the sheet metal frame and connected to the vibrating screen body.

[0011] A powder application device is provided at the lower end of the sheet metal frame and one end is connected to the lower powder storage box.

[0012] Furthermore, the vibrating screen body includes:

[0013] A base, wherein an opening is provided in the middle of the base;

[0014] The lower housing of the vibrating screen is hemispherical and has a discharge pipe connected to the bottom through the opening;

[0015] The upper housing of the vibrating screen is hemispherical and connected to the upper housing of the lower housing of the vibrating screen by quick-release buckles. The side is connected to a vibrating motor, a quick-connect air inlet connector, and a quick-connect air outlet connector. A metal hose is provided on the top, and a pneumatic butterfly valve is provided on the metal hose and connected to the upper powder storage box.

[0016] Waste outlet pipe, one end of which is connected to the upper housing of the vibrating screen.

[0017] Furthermore, the vibrating screen body also includes:

[0018] A vibrating screen observation window is provided on the upper housing of the vibrating screen.

[0019] An oxygen sensor is disposed inside the housing of the vibrating screen.

[0020] A fixing plate is connected to the outside of the lower housing of the vibrating screen;

[0021] Multiple buffer springs, one end of which is connected to the base and the other end of which is connected to the fixed plate.

[0022] Furthermore, the upper powder storage box has the same structure as the lower powder storage box, and the upper powder storage box includes:

[0023] The powder storage box body has a forklift anchor welding block fixed on the side end, and an inverted trapezoidal discharge port is formed at the bottom end. The inverted trapezoidal discharge port is connected to one end of the discharge vacuum quick-connect manual butterfly valve, and a powder storage box air outlet quick connector is set next to the inverted trapezoidal discharge port. The top end is respectively equipped with a capacitive sensor, a powder storage box air inlet quick connector, a powder storage box observation window, and a feed port. The feed port is connected to a feed vacuum quick-connect manual butterfly valve.

[0024] A powder storage box bracket is disposed on the outside of the powder storage box body and connected to the powder storage box body through a bracket fixing block.

[0025] The upper powder storage box is connected to the metal hose via the discharge vacuum quick-connect manual butterfly valve.

[0026] Furthermore, the exhaust gas filtration device includes:

[0027] The exhaust gas filter housing is formed into a cylinder, with a quick-connect fitting for air inlet and a quick-connect fitting for air outlet connected to the top and bottom ends respectively. The quick-connect fitting for air inlet is connected to the other end of the waste outlet pipe.

[0028] An adjustable pressure relief valve is fixedly installed on the side of the exhaust gas filter housing;

[0029] A housing fixing plate is installed on the upper end of the exhaust gas filter housing to connect to the bottom end of the sheet metal frame.

[0030] Furthermore, the powder application device includes:

[0031] A spiral shaft cylinder body, wherein the spiral shaft cylinder body is formed into a cylindrical shape;

[0032] A feed reducing tee pipe is provided, with one end of the feed reducing tee pipe open and connected to one end of the spiral shaft cylinder body. A powder feeding port is formed on the side end of the feed reducing tee pipe, and the powder feeding port is connected to the lower powder storage box through the discharge vacuum quick-connect manual butterfly valve.

[0033] The discharge reducing tee has one end open and connected to the other end of the spiral shaft cylinder, and the side end of the discharge reducing tee has a powder discharge port.

[0034] A spiral shaft, which is integrally formed inside the spiral shaft cylinder and has multiple spiral blades connected to its surface;

[0035] A servo motor is provided at the other end of the discharge reducing tee and connected to one end of the screw shaft to drive the screw shaft to rotate.

[0036] Furthermore, multiple casters are installed at the bottom of the lower support.

[0037] Furthermore, the gas path module includes:

[0038] An air passage mounting plate is installed inside the sheet metal frame, and an airflow regulating valve is provided on the air passage mounting plate.

[0039] Furthermore, the sheet metal frame, the upper bracket, and the lower bracket are all made of stainless steel.

[0040] Furthermore, the quick-connect fittings for the powder storage box air inlet, the quick-connect fittings for the powder storage box air outlet, the quick-connect fittings for the vibrating screen air inlet, the quick-connect fittings for the vibrating screen air outlet, the quick-connect fittings for the housing air inlet, and the quick-connect fittings for the housing air outlet are all KF vacuum fittings.

[0041] According to an embodiment of the present invention, a metal powder vibrating sieving device for metal 3D printing is directly connected to a 3D printing device. By setting sieving parameters such as powder screening through a touch screen, the sieving amount, vibration frequency and time can be adjusted, thereby realizing automated metal powder screening and 3D printing coordinated operation.

[0042] Furthermore, the metal powder vibrating screening device is filled with inert gas, which increases safety. By setting up an exhaust gas filtration device with an adjustable safety pressure relief valve, the cleanliness is improved, and the exhaust gas filtration is recycled, reducing the use of inert gas.

[0043] The device employs multiple vacuum quick-connect butterfly valves to ensure safety and sealing during the screening process. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of the metal powder vibrating sieve device according to an embodiment of the present invention;

[0045] Figure 2 This is a rear view of the metal powder vibrating sieve device according to an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the main structure of the vibrating screen according to an embodiment of the present invention;

[0047] Figure 4 This is a schematic diagram of the upper powder storage box structure according to an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the structure of the exhaust gas filtration device according to an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the powder coating device according to an embodiment of the present invention;

[0050] Figure 7 This is a schematic diagram of the spiral shaft structure according to an embodiment of the present invention;

[0051] Figure 8 This is a schematic diagram of the gas path module according to an embodiment of the present invention.

[0052] Figure label:

[0053] 1. Sheet metal frame; 2. Vibrating screen body; 3. Upper powder storage box; 4. Lower powder storage box; 5. Exhaust gas filter; 6. Powder feeding device; 7. Touch screen; 8. Upper bracket; 9. Lower bracket; 10. Powder storage box air inlet quick connector; 11. Powder storage box air outlet quick connector; 12. Base; 13. Vibrating screen lower shell; 14. Vibrating screen upper shell; 15. Waste outlet pipe; 16. Discharge pipe; 17. Vibrating motor; 18. Vibrating screen air inlet quick connector; 19. Vibrating screen air outlet quick connector; 20. Metal hose; 21. Pneumatic butterfly valve; 22. Quick-release buckle; 23. Vibrating screen observation window; 24. Oxygen sensor; 25. Fixing plate; 26. Buffer spring; 27. Powder storage box body; 28. 29. Powder storage box bracket; 30. Forklift anchor welding block; 31. Inverted trapezoidal discharge port; 32. Discharge vacuum quick-connect manual butterfly valve; 33. Capacitive sensor; 34. Powder storage box observation window; 35. Feed vacuum quick-connect manual butterfly valve; 36. Bracket fixing block; 37. Exhaust gas filter housing; 38. Adjustable pressure relief valve; 49. Housing fixing plate; 40. Housing air inlet quick connector; 41. Housing air outlet quick connector; 42. Spiral shaft cylinder; 43. Feed reducing tee; 44. Discharge reducing tee; 45. Spiral shaft; 46. Servo motor; 47. Spiral blades; 48. Fuma wheel; 49. Air circuit mounting plate; 50. Airflow regulating valve; 51. Powder feeding inlet; 52. Powder feeding outlet. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0055] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0056] The following section will first combine the appendix. Figure 1-8 The metal powder vibrating sieving device of the present invention is described in detail in the embodiments thereof.

[0057] According to an embodiment of the present invention, a metal powder vibrating sieving device for metal 3D printing includes a sheet metal frame 1, a vibrating screen body 2, an upper powder storage box 3, a lower powder storage box 4, an exhaust gas filtration device 5, and a powder feeding device 6.

[0058] The front end of the sheet metal frame 1 is equipped with a touch screen 7, and multiple upper brackets 8 are installed around the top. The sheet metal frame 1 contains a circuit module (not shown) and a pneumatic module.

[0059] The vibrating screen body 2 is formed in a hemispherical shape and fixed to the upper end of the sheet metal frame 1 for screening metal powder;

[0060] The upper powder storage box 3 is detachably installed above the upper support 8 and has a powder storage box air inlet quick connector 10 at the top. The upper powder storage box 3 is connected above the vibrating screen body 2 and is used to store unscreened metal powder.

[0061] The lower powder storage box 4 is located at the lower end of the sheet metal frame 1 and connected to the lower part of the vibrating screen body 2. The bottom of the lower powder storage box 4 is equipped with a quick-connect 11 for air outlet of the powder storage box. Multiple lower supports 9 are detachably connected to the outside of the lower powder storage box 4. The lower powder storage box 4 is used to store the metal powder that has been screened.

[0062] The exhaust gas filtration device 5 is installed at the bottom of the sheet metal frame 1 and connected to the vibrating screen body 2, and is used to filter and discharge the generated exhaust gas.

[0063] The powder application device 6 is located at the lower end of the sheet metal frame and is connected to the lower powder storage box 4 at one end, and can be connected to the metal 3D printing equipment at the other end.

[0064] Specifically, the operator assigns parameters on the touchscreen 7, such as powder feeding time, sieving time, sieving amount, vibration frequency, and time settings. At this time, the metal powder in the upper powder storage box 3 enters the vibrating screen body 2 for vibration sieving. The sieved metal powder then enters the lower powder storage box 4 for storage. When 3D printing is required, the metal powder in the lower powder storage box 4 is fed into the metal 3D printing equipment via the powder feeding device 6 for the relevant printing operations. This enables automated metal powder screening and 3D printing to be performed in tandem, improving the automation level of the vibrating screening process. Simultaneously, throughout the process, inert gas enters the upper powder storage box 3 through the powder storage box inlet quick connector 10, and the exhaust gas filter 5 discharges the exhaust gas carrying powder impurities generated during vibration sieving. The remaining inert gas is discharged through the powder storage box outlet quick connector 11, thereby improving the safety and cleanliness of the vibration screening process.

[0065] Furthermore, the vibrating screen body 2 includes a base 12, a lower housing 13, an upper housing 14, and a waste outlet pipe 15.

[0066] The base 12 has an opening in the middle. The lower housing 13 of the vibrating screen is hemispherical, and a discharge pipe 16 is connected to the bottom through the opening. The upper housing 14 of the vibrating screen is hemispherical and connected to the upper housing 13 of the lower housing via a quick-release buckle 22. A vibrating motor 17, a quick-connect air inlet 18, and a quick-connect air outlet 19 are connected to the sides. A metal hose 20 is provided at the top, and a pneumatic butterfly valve 21 is installed on the metal hose 20 and connected to the powder storage box 3. One end of the waste outlet pipe 15 is connected to the upper housing 14 of the vibrating screen.

[0067] After the pneumatic butterfly valve 21 is opened under control, the metal powder in the upper powder storage box 3 enters the vibrating screen body 2 through the metal hose 20. The vibrating motor 17 provides power for the vibrating screening. The inert gas enters the vibrating screen body 2 through the vibrating screen inlet quick connector 18 and is discharged through the vibrating screen outlet quick connector 19. The metal powder waste generated by the vibrating screening is discharged through the waste outlet pipe 15, ensuring safety and cleanliness throughout the vibrating screening process.

[0068] Furthermore, the main body 2 of the vibrating screen also includes a vibrating screen observation window 23, an oxygen sensor 24, a fixing plate 25, and multiple buffer springs 26.

[0069] The observation window 23 of the vibrating screen is set on the upper shell 14 of the vibrating screen, which facilitates the operator's observation.

[0070] The oxygen sensor 24 is installed inside the upper housing 14 of the vibrating screen, which can display the oxygen content index inside the vibrating screen body 2 in real time, thus improving safety.

[0071] The fixing plate 25 is connected to the outside of the lower housing 13 of the vibrating screen. Multiple buffer springs 26 are connected at one end to the base 12 and at the other end to the fixing plate 25, providing damping for the vibrating screening process and reducing the probability of damage to the vibrating screen body 2.

[0072] Furthermore, the upper powder storage box 3 and the lower powder storage box 4 have the same structure. The upper powder storage box 3 includes a powder storage box body 27 and a powder storage box support 28.

[0073] The main body 27 of the powder storage box is fixed with a forklift anchor welding block 29 on the side, which facilitates forklift transportation; the bottom end forms an inverted trapezoidal discharge port 30, which is connected to one end of the discharge vacuum quick-connect manual butterfly valve 31, and a powder storage box air outlet quick connector 11 is set next to the inverted trapezoidal discharge port 30; the top end is respectively equipped with a capacitive sensor 32, a powder storage box air inlet quick connector 10, a powder storage box observation window 33, and a feed port, and a feed vacuum quick-connect manual butterfly valve 34 is connected to the feed port.

[0074] The powder storage box bracket 28 is located on the outside of the powder storage box body 27 and is connected to the powder storage box body 27 through the bracket fixing block 35.

[0075] Specifically, regarding the upper powder storage box 3, after opening the feed vacuum quick-connect manual butterfly valve 34, the metal powder is poured into the upper powder storage box 3 for storage. When the vibrating screen operation is started, the metal powder enters the vibrating screen body 2 through the inverted trapezoidal discharge port 30, the discharge vacuum quick-connect manual butterfly valve 31, and the metal hose 20.

[0076] Regarding the lower powder storage box 4, the sieved metal powder enters the lower powder storage box 4 through the inlet via the discharge pipe 16 for storage. When 3D printing is required, the sieved metal powder enters the powder feeding device 6 through the inverted trapezoidal discharge port 30.

[0077] Furthermore, the exhaust gas filtration device 5 includes an exhaust gas filter housing 36, an adjustable pressure relief valve 37, and a housing fixing plate 38.

[0078] The exhaust gas filter housing 36 is formed into a cylinder, with a quick-connect fitting 39 for the housing inlet and a quick-connect fitting 40 for the housing outlet connected to the top and bottom ends respectively. The quick-connect fitting 39 for the housing inlet is connected to the other end of the waste outlet pipe 15.

[0079] The adjustable pressure relief valve 37 is fixedly installed on the side of the exhaust gas filter housing 36, which increases safety.

[0080] The housing fixing plate 38 is installed on the upper end of the exhaust gas filter housing 36 to connect to the bottom end of the sheet metal frame 1.

[0081] Specifically, the waste gas and waste materials generated by the vibrating screen enter the waste gas filter housing 36 through the waste material outlet pipe 15 for filtration, which greatly improves the cleanliness and ensures environmental protection.

[0082] Furthermore, the powder feeding device 6 includes a screw shaft cylinder 41, a feed reducing tee 42, a discharge reducing tee 43, a screw shaft 44, and a servo motor 45.

[0083] The helical shaft cylinder 41 is formed into a cylindrical shape.

[0084] One end of the feed reducing tee pipe 42 is open and connected to one end of the screw shaft cylinder 41. The side end of the feed reducing tee pipe 42 forms a powder feeding port 50. The powder feeding port 50 is connected to the lower powder storage box 4 through the discharge vacuum quick-connect manual butterfly valve 31.

[0085] One end of the discharge reducing tee 43 is open and connected to the other end of the spiral shaft cylinder 41, and the side end of the discharge reducing tee 43 forms a powder discharge port 51, which can be connected to a 3D printing device.

[0086] The spiral shaft 44 is integrally formed inside the spiral shaft cylinder 41 and has multiple spiral blades 46 connected to its surface.

[0087] The servo motor 45 is located at the other end of the discharge reducing tee pipe 43 and is connected to one end of the screw shaft 44 to drive the screw shaft 44 to rotate.

[0088] Specifically, during the printing process, after the servo motor 45 starts, it drives the spiral shaft 44 to start rotating. The metal powder in the lower powder storage box 4 enters the spiral shaft cylinder 41 through the powder feeding port 50. The spiral blades 46 generate friction with the metal powder, thereby driving the metal powder to move to the powder discharge port 51 and finally enter the 3D printing equipment, thus completing the 3D printing powder supply operation.

[0089] Furthermore, the bottom of the lower support 9 is equipped with multiple casters 47, which increases the ease of movement.

[0090] Furthermore, the gas path module includes a gas path mounting plate 48, which is installed inside the sheet metal frame 1. The gas path mounting plate is equipped with an airflow regulating valve 49 to control the flow rate of inert gas. Initially, the inert gas is set to a high airflow mode via the touch screen 7. When the oxygen content drops below 100ppm, it is adjusted to a low airflow mode, thereby reducing the use of inert gas and lowering costs.

[0091] Furthermore, the sheet metal frame 1, upper bracket 8, and lower bracket 9 are all made of stainless steel.

[0092] Furthermore, the quick-connect fittings 10 and 11 for the powder storage box air inlet, 18 and 19 for the vibrating screen air inlet, 39 and 40 for the shell air inlet, and 40 for the shell are all KF vacuum fittings.

Claims

1. A vibrating sieving device for metal powder in metal 3D printing, characterized in that, include: A sheet metal frame, wherein a touch screen is provided at the front end of the sheet metal frame, and multiple upper brackets are installed around the top. A circuit module and an air circuit module are provided inside the sheet metal frame. The vibrating screen body is formed in a hemispherical shape and fixed to the upper end of the sheet metal frame for screening metal powder; The upper powder storage box is detachably installed above the upper support and has a quick-connect air inlet connector at its top. The upper powder storage box is connected above the vibrating screen body. The lower powder storage box is located at the lower end of the sheet metal frame and connected to the lower part of the vibrating screen body. The bottom of the lower powder storage box is provided with a quick-connect vent for the powder storage box. Multiple lower supports are detachably connected to the outside of the lower powder storage box. An exhaust gas filtration device is installed at the bottom of the sheet metal frame and connected to the vibrating screen body. A powder application device is provided at the lower end of the sheet metal frame and one end is connected to the lower powder storage box. The vibrating screen body includes: A base, wherein an opening is provided in the middle of the base; The lower housing of the vibrating screen is hemispherical and has a discharge pipe connected to the bottom through the opening; The upper housing of the vibrating screen is hemispherical and connected to the upper housing of the lower housing of the vibrating screen by quick-release buckles. The side is connected to a vibrating motor, a quick-connect air inlet connector, and a quick-connect air outlet connector. A metal hose is provided on the top, and a pneumatic butterfly valve is provided on the metal hose and connected to the upper powder storage box. Waste outlet pipe, one end of which is connected to the upper housing of the vibrating screen; The upper powder storage box has the same structure as the lower powder storage box, and the upper powder storage box includes: The powder storage box body has a forklift anchor welding block fixed on the side end, and an inverted trapezoidal discharge port is formed at the bottom end. The inverted trapezoidal discharge port is connected to one end of the discharge vacuum quick-connect manual butterfly valve, and a powder storage box air outlet quick connector is set next to the inverted trapezoidal discharge port. The top end is respectively equipped with a capacitive sensor, a powder storage box air inlet quick connector, a powder storage box observation window, and a feed port. The feed port is connected to a feed vacuum quick-connect manual butterfly valve. A powder storage box bracket is disposed on the outside of the powder storage box body and connected to the powder storage box body through a bracket fixing block; The upper powder storage box is connected to the metal hose via the discharge vacuum quick-connect manual butterfly valve; The exhaust gas filtration device includes: The exhaust gas filter housing is formed into a cylinder, with a quick-connect fitting for air inlet and a quick-connect fitting for air outlet connected to the top and bottom ends respectively. The quick-connect fitting for air inlet is connected to the other end of the waste outlet pipe. An adjustable pressure relief valve is fixedly installed on the side of the exhaust gas filter housing; A housing fixing plate is installed at the upper end of the exhaust gas filter housing to connect to the bottom end of the sheet metal frame; The powder application device includes: A spiral shaft cylinder body, wherein the spiral shaft cylinder body is formed into a cylindrical shape; A feed reducing tee pipe is provided, with one end of the feed reducing tee pipe open and connected to one end of the spiral shaft cylinder body. A powder feeding port is formed on the side end of the feed reducing tee pipe, and the powder feeding port is connected to the lower powder storage box through the discharge vacuum quick-connect manual butterfly valve. The discharge reducing tee has one end open and connected to the other end of the spiral shaft cylinder, and the side end of the discharge reducing tee has a powder discharge port. A spiral shaft, which is integrally formed inside the spiral shaft cylinder and has multiple spiral blades connected to its surface; A servo motor is provided at the other end of the discharge reducing tee and connected to one end of the screw shaft to drive the screw shaft to rotate.

2. The metal powder vibrating sieve device according to claim 1, characterized in that, The vibrating screen body also includes: A vibrating screen observation window is provided on the upper housing of the vibrating screen. An oxygen sensor is disposed inside the housing of the vibrating screen. A fixing plate is connected to the outside of the lower housing of the vibrating screen; Multiple buffer springs, one end of which is connected to the base and the other end of which is connected to the fixed plate.

3. The metal powder vibrating sieve device according to claim 1, characterized in that, The bottom of the lower support is equipped with multiple casters.

4. The metal powder vibrating sieve device according to claim 1, characterized in that, The gas path module includes: An air passage mounting plate is installed inside the sheet metal frame, and an airflow regulating valve is provided on the air passage mounting plate.

5. The metal powder vibrating sieve device according to claim 1, characterized in that, The sheet metal frame, the upper bracket, and the lower bracket are all made of stainless steel.

6. The metal powder vibrating sieve device according to claim 1, characterized in that, The quick-connector for air inlet of the powder storage box, the quick-connector for air outlet of the powder storage box, the quick-connector for air inlet of the vibrating screen, the quick-connector for air outlet of the vibrating screen, the quick-connector for air inlet of the shell, and the quick-connector for air outlet of the shell are all KF vacuum connectors.

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