CN112317745B - Automatic additive manufacturing powder storage device and storage method - Google Patents
Automatic additive manufacturing powder storage device and storage method Download PDFInfo
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- CN112317745B CN112317745B CN202011000114.8A CN202011000114A CN112317745B CN 112317745 B CN112317745 B CN 112317745B CN 202011000114 A CN202011000114 A CN 202011000114A CN 112317745 B CN112317745 B CN 112317745B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses an automatic additive manufacturing powder storage device and a storage method, wherein the device comprises a sealing box, wherein a plurality of independent box bodies are arranged in the sealing box; each box body comprises a vacuum chamber and an argon chamber, and a movable sealing door is arranged between the vacuum chamber and the argon chamber and used for isolating gas; the box body is internally provided with a powder collecting barrel for containing metal powder and a conveyor belt for conveying the powder collecting barrel between the vacuum chambers and the argon chambers, a vacuum generating device and gas cylinders for supplementing argon are arranged outside the seal box, the vacuum generating device is communicated with each vacuum chamber, and the gas cylinders are communicated with each argon chamber. According to the storage device, the metal powder is stored in the argon atmosphere, so that the risk of wetting and deteriorating the powder is reduced; when the metal powder is extracted or stored again, the sealing door and the vacuum chamber can isolate the argon gas chamber from the atmosphere, effectively reduce the use amount of argon gas, reduce the risks of wetting and oxidation of the metal powder and ensure the dryness, purity and stability of the metal powder.
Description
Technical Field
The invention relates to the field of additive manufacturing, in particular to an automatic additive manufacturing powder storage device and a storage method.
Background
The additive manufacturing or 3D printing technology is an advanced manufacturing method based on the principles of digital modeling, layered manufacturing and layer-by-layer superposition, wherein powder or wire materials are used as raw materials, the structure is divided into a plurality of thin layers through digital software, and the thin layers are deposited by utilizing laser beams or electron beams with high energy density and are stacked layer by layer to form a near net shape structure. Compared with the traditional forging and casting, the additive manufacturing has the characteristics of high material utilization rate, high design freedom, low energy consumption, short production period, environmental protection and the like, and is known as an important sign of 'the third industrial revolution'. As raw materials for additive manufacturing, common metal powder in engineering comprises titanium alloy Ti6Al4V, aluminum alloy AlSi10Mg, nickel-based alloy inconel625 and 718 and the like, and the physical and chemical properties of powder particles influence the manufacturing quality and service performance of additive parts. Taking titanium alloy Ti6Al4V powder widely applied to the fields of aerospace and biomedicine as an example, the titanium alloy Ti6Al4V powder has small particle size, high chemical activity and strong oxidation effect, is easy to burn or explode, is extremely easy to be damped if the powder is not reasonably stored and protected, leads to purity reduction, forms metallurgical pores in additive parts, seriously deteriorates fatigue service performance of the additive parts, and is very important for storing and protecting additive manufacturing metal powder.
The common additive manufacturing metal powder storage device is a tank-shaped powder collecting barrel, in order to reduce the oxygen content in the metal powder storage space, an air inlet of inert gas such as argon and nitrogen is arranged on the powder collecting barrel, and because the density of the inert gas is greater than that of oxygen, the inert gas can sink after entering the powder collecting barrel, and the oxygen can float, so that the gas washing function is realized, and the metal powder for additive manufacturing can be used in a gas washing link. However, the gas washing treatment eliminates only the gas having a relatively low density mixed in the metal powder, and the problems of discoloration, fluffiness, and deterioration in flexibility of the powder due to moisture during long-term storage cannot be avoided, so that the metal powder is dried after being taken out from the storage apparatus. It is pointed out that the metal powder is necessary to have part of the powder which is already subjected to damp deterioration in the long-term storage process, and the manufacturing quality and the service performance of the additive component are seriously influenced by incomplete oxygen removal and incomplete moisture drying in the storage process.
In the prior art, the disclosure number is CN110238390A, the disclosure time is 09 and 17 days in 2019, and the chinese patent document entitled "a metal powder vacuum storage device" discloses a metal powder vacuum storage device, which includes a storage box for storing metal powder, the storage box is hollow, a charging opening communicated with the outside is arranged at the top of the storage box, and a sealing cover for covering or opening the charging opening is arranged above the charging opening; the storage box body is provided with an air inlet connected with an air bottle and an air outlet connected with a vacuum generating device; and the bottom of the storage box body is provided with a powder outlet connected with a powder collecting device.
The above patent guarantees that the metal powder is in a dry low-oxygen environment by performing vacuum storage on the metal powder. But has the following disadvantages: the storage box body is smaller, the storage powder type of each box body can only be one, and nitrogen gas needs to be filled when the storage box body is taken every time, so that the waste of inert gas and the storage cost are increased.
Disclosure of Invention
The invention aims to provide an automatic additive manufacturing powder protection device which is low in cost and convenient to operate and can store various additive manufacturing metal powders.
The purpose of the invention is realized by the following technical scheme:
an automatic change additive manufacturing powder storage device, includes the seal box, its characterized in that: a plurality of independent box bodies are arranged in the sealing box, an openable sealing cover is arranged on one side of each box body, and a powder inlet is formed in each sealing cover; each box body comprises a vacuum chamber and an argon chamber, and a movable sealing door is arranged between the vacuum chamber and the argon chamber and used for isolating gas; the box body is internally provided with a powder collecting barrel for containing metal powder and a conveyor belt for conveying the powder collecting barrel between the vacuum chamber and the argon chamber, a vacuum generating device and a gas cylinder for supplementing argon are arranged outside the sealing box, the vacuum generating device is communicated with each vacuum chamber, and the gas cylinder is communicated with each argon chamber.
Furthermore, the whole seal box is cuboid, each box body is arranged in the seal box in an up-down parallel mode, a separation plate is arranged between the upper box body and the lower box body to isolate air circulation, the seal cover is arranged on one side, close to the vacuum chamber, of the box body, and an air inlet connected with an air bottle and an air outlet connected with a vacuum generating device are arranged on each box body.
Furthermore, the seal box is provided with an observation window for observing the transmission position of the powder receiving barrel in the box body.
Furthermore, the gas cylinder is externally connected with a gas inlet pipe, the gas inlet pipe is communicated with the gas inlets on the box bodies, and a first valve used for controlling the on-off of the gas outlet pipe is arranged on the gas inlet pipe.
Furthermore, the vacuum generating device is externally connected with an air outlet pipe, the air outlet pipe is communicated with air outlets on the box bodies, and a vacuum pressure gauge for detecting the vacuum degree in the box bodies and a second valve for controlling the on-off of the air outlet pipe are arranged on the air outlet pipe.
Further, the second valve is a one-way valve.
A method of storing automated additive manufacturing powder, comprising the steps of:
1) adding metal powder: opening a sealing cover on a sealing box, placing a plurality of powder collecting barrels filled with metal powder on a conveyor belt from a powder inlet, opening a sealing door, starting the conveyor belt, and conveying the powder collecting barrels from a vacuum chamber to an argon chamber for storage;
2) the powder is sent into an argon chamber: continuously placing the powder collecting barrel in the vacuum chamber as required, repeating the steps until the powder collecting barrel is sent into the argon chamber, and closing the sealing cover;
3) vacuumizing: keeping the sealing door open, starting the vacuum generating device, pumping out air in the vacuum chamber and the argon chamber through the air outlet pipe by the vacuum generating device, and closing the vacuum generating device when the pointer of the vacuum pressure gauge is less than or equal to-0.075 MPa;
4) filling argon gas: opening a gas cylinder to enable a gas inlet pipe to enter an argon chamber and a vacuum chamber from a gas inlet, stopping introducing the argon when the reading on the vacuum pressure gauge is more than or equal to 0, and storing metal powder in the argon chamber;
5) taking metal powder: opening a sealing door, starting a conveyor belt, conveying a powder collecting barrel to a vacuum chamber from an argon chamber, closing the sealing door when the powder collecting barrel reaches the vacuum chamber, opening a sealing cover, and taking out the powder collecting barrel from a powder outlet;
6) metal powder storage again: opening the sealing cover, placing the powder collecting barrel filled with metal powder on a conveyor belt of the vacuum chamber from the powder inlet, closing the sealing cover, starting the vacuum generating device when the sealing door is in a closed state, and pumping out air in the vacuum chamber from the air outlet through the air outlet pipe by the vacuum generating device; and opening the sealing door, starting the conveyor belt to convey the powder collecting barrel from the vacuum chamber to the argon chamber for storage, and closing the sealing door when the powder collecting barrel is positioned in the argon chamber.
Further, the operator observes the pressure reading on the vacuum pressure gauge to control the on-off of the first valve and the second valve.
Furthermore, the position of the powder collecting barrel can be observed through the observation window in the rotating process of the conveyor belt so as to control the progress of the conveyor belt.
The beneficial effects of this technical scheme are as follows:
1. the storage device comprises the sealing box, the sealing box consists of an argon chamber and a vacuum chamber, metal powder is stored in the argon atmosphere, the risk that water molecules in the air are adhered to the surface of the powder or enter the powder through pores on the surface of the powder so that the powder is affected with damp and goes bad is reduced, and the dryness, the purity and the stability of the metal powder are guaranteed.
2. The storage device is provided with the plurality of independent box bodies, additive manufacturing powder with different types or materials can be stored in different box bodies, the storage capacity is large, and the storage device is particularly suitable for storing additive manufacturing powder with a large quantity and a large variety.
3. According to the storage method, the powder collecting barrel is controlled to move between the vacuum chamber and the argon chamber through the conveyor belt, an operator can observe the position of the powder collecting barrel according to the observation window on the seal box and control the operation of the conveyor belt, and the storage method is convenient to use; when taking metal powder, sealing door and real empty room can realize the isolation between argon gas chamber and the atmosphere, and real empty room evacuation can guarantee that the air does not get into the argon gas chamber, effectively reduces the argon gas use amount, reduces the storage cost.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
in the figure:
1. a gas cylinder; 2. a sealing box; 3. a vacuum generating device; 4. a powder collecting barrel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements that are referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment discloses an automatic change vibration material disk powder storage device, including seal box 2, seal box 2 wholly is the cuboid type, and each box is according to upper and lower parallel arrangement in seal box 2, is equipped with the isolated circulation of air of division board between the upper and lower box, and sealed lid setting is close to real empty room place one side on the box, all is equipped with the air inlet of being connected with gas cylinder 1 and the gas outlet that links to each other with vacuum generating device 3 on every box. A plurality of independent box bodies are arranged in the sealing box 2, an openable sealing cover is arranged on one side of each box body, and a powder inlet is formed in each sealing cover; each box body comprises a vacuum chamber and an argon chamber, a movable sealing door is arranged between the vacuum chamber and the argon chamber and used for isolating gas, and the vacuum chamber and the argon chamber form two relatively independent spaces through the sealing door; the box is internally provided with a powder collecting barrel 4 for containing metal powder and a conveyor belt for conveying the powder collecting barrel 4 between a vacuum chamber and an argon chamber, a vacuum generating device 3 and a gas cylinder 1 for supplementing argon are arranged outside the seal box 2, and other inert gases such as nitrogen can be contained in the gas cylinder. The gas cylinder 1 is externally connected with a gas inlet pipe, the gas inlet pipe is communicated with gas inlets on the box bodies, and a first valve used for controlling the on-off of the gas outlet pipe is arranged on the gas inlet pipe. The vacuum generating device 3 is externally connected with an air outlet pipe, the air outlet pipe is communicated with air outlets on the box bodies, and a vacuum pressure gauge for detecting the vacuum degree in the box bodies and a second valve for controlling the on-off of the air outlet pipe are arranged on the air outlet pipe. Preferably, the second valve is a one-way valve.
Furthermore, the seal box 2 is provided with an observation window for observing the transmission position of the powder receiving barrel 4 in the box body. The position of the powder collecting barrel can be observed through the observation window in the rotating process of the conveying belt so as to control the progress of the conveying belt.
According to the automatic additive manufacturing powder protection device, the sealing box is composed of the argon chamber and the vacuum chamber, metal powder is stored in the argon atmosphere, and the risk that water molecules in the air are adhered to the surface of the powder or enter the powder through the pores on the surface of the powder so that the powder is damped and deteriorated is reduced. When the metal powder is extracted or stored again, the isolation between the argon gas chamber and the atmosphere is realized through the sealing door and the vacuum chamber, the vacuum pumping of the vacuum chamber is used for ensuring that the air does not enter the argon gas chamber, the use amount of the argon gas can be effectively reduced, the risks of wetting and oxidation of the metal powder are reduced, and the dryness, the purity and the stability of the metal powder are ensured.
Example 2
The embodiment discloses a storage method of the automatic additive manufacturing powder storage device based on the embodiment 1, which includes the following specific steps:
A. adding metal powder: the sealing cover 2d of the sealing box 2 is opened, a plurality of powder collecting barrels 4 filled with metal powder are placed on the conveying belt 2f from the powder inlet 2c, the sealing cover 2d is closed, and the sealing door 2e is in an opening state. The seal box 2 is divided into one or more independent upper box bodies (composed of an upper vacuum chamber 2l and an upper argon chamber 2 j) and lower box bodies (composed of a lower vacuum chamber 2m and a lower argon chamber 2 k) (only two layers are shown in the figure, and the two layers can be increased or decreased as required), the gas circulation is isolated between the upper box body and the lower box bodies by means of a seal plate 2h, and a gas bottle and a vacuum generating device are connected with each layer of box body.
B. Powder feed tightness: when one powder collecting barrel 4 is placed in the vacuum chamber, the conveyor belt 2f is started, the conveyor belt 2f rotates directionally under the drive of the rotating shaft 2g, the powder collecting barrel is conveyed to the argon gas chamber 2a from the vacuum chamber 2b for storage, the position of the powder collecting barrel 4 can be observed through the observation window 2i in the rotating process of the conveyor belt 2f so as to control the progress of the conveyor belt 2f, and the observation window 2i is arranged in the whole length direction of the upper box body and the lower box body and is not limited to the position in fig. 1. And (4) continuously placing the powder collecting barrel 4 into the vacuum chamber according to the requirement, repeating the steps, and sending the powder collecting barrel 4 into the argon gas chamber 2a, wherein the metal powder is stored in the argon gas chamber.
C. Vacuumizing: keeping the sealing door 2e open, starting the vacuum generating device 3, pumping out air in the vacuum chamber 2b and the argon chamber 2a from the air outlet 3d by the vacuum generating device 3 through the air outlet pipe 3a, observing the vacuum pressure gauge 3c by an operator, and closing the vacuum generating device 3 when the pointer of the vacuum pressure gauge 3c is less than or equal to-0.075 MPa. The air outlet 3d is connected with the vacuum generating device 3 through the air outlet pipe 3a, the air outlet pipe 3a is provided with a vacuum pressure gauge 3c for detecting the vacuum degree and a second valve 3b for controlling the on-off of the air outlet pipe 3a, and an operator controls the on-off of the second valve 3b by observing the degree on the vacuum pressure gauge 3c so as to control whether to continue vacuumizing. The vacuum generating device 3 is a vacuum pump, and the second valve 3b is a one-way valve, so that the gas in the gas outlet pipe 3a can flow from the vacuum chamber 2b to the vacuum generating device 3.
D. Filling argon gas: open first valve 1b, argon gas gets into argon gas chamber 2a and real empty room 2b from gas cylinder 1 through intake pipe 1a by air inlet 1c, air inlet 1c links to each other with gas cylinder 1 through intake pipe 1a, be equipped with the first valve 1b of control intake pipe 1a break-make on intake pipe 1a, and then whether control lets in argon gas, when the reading on the vacuum pressure table 3c is greater than or equal to 0, stop to let in argon gas, close sealing door 2e, accomplish argon gas chamber 2a and fill argon, metal powder stores in the argon gas chamber this moment.
E. Taking out the metal powder: when metal powder needs to be taken out of the sealed box 2 for additive manufacturing, the sealed door 2e is opened, the conveyor belt 2f is started, the conveyor belt 2f rotates directionally under the driving of the rotating shaft 2g, the powder collecting barrel 4 is conveyed to the vacuum chamber 2b from the argon chamber 2a, the position of the powder collecting barrel 4 can be observed through the observation window 2i in the rotating process of the conveyor belt 2f so as to control the process of the conveyor belt 2f, and when the powder collecting barrel 4 is located in the vacuum chamber 2b, the sealed door 2e is closed. And opening the sealing cover 2d and sending the powder collecting barrel out from the powder outlet 2 c.
F. Metal powder storage again: when it is necessary to store the metal powder in the airtight box again, the airtight cover 2d of the airtight box 2 is opened, the powder collecting bucket 4 containing the metal powder is placed on the conveyor belt 2f of the vacuum chamber 2b from the powder inlet 2c, and the airtight cover 2d is closed with the airtight door 2e in a closed state. Starting the vacuum generating device 3, pumping out air in the vacuum chamber 2b by the air outlet 3d through the air outlet pipe 3a by the vacuum generating device 3, observing the vacuum pressure gauge 3c by an operator, and closing the vacuum generating device 3 when the pointer of the vacuum pressure gauge 3c is less than or equal to-0.075 MPa. And opening the sealing door 2e, starting the conveyor belt 2f, driving the conveyor belt 3f to directionally rotate under the drive of the rotating shaft 2g, conveying the powder collecting barrel 4 from the vacuum chamber 2b to the argon chamber 2a for storage, and closing the sealing door 2e when the powder collecting barrel 4 is positioned in the argon chamber 2 a.
Claims (8)
1. An automatic change additive manufacturing powder storage device, includes the seal box, its characterized in that: a plurality of independent box bodies are arranged in the sealing box, an openable sealing cover is arranged on one side of each box body, and a powder inlet is formed in the sealing cover; each box body comprises a vacuum chamber and an argon chamber, and a movable sealing door is arranged between the vacuum chamber and the argon chamber and used for isolating gas; a powder collecting barrel for containing metal powder and a conveyor belt for conveying the powder collecting barrel between the vacuum chambers and the argon chambers are arranged in the box body, a vacuum generating device and a gas cylinder for supplementing argon are arranged outside the sealing box, the vacuum generating device is communicated with each vacuum chamber, and the gas cylinder is communicated with each argon chamber; the whole sealed box is cuboid, each box is arranged in the sealed box in parallel from top to bottom, a separation plate is arranged between the upper box and the lower box to isolate air circulation, the sealed cover is arranged on one side, close to the vacuum chamber, of the box, and an air inlet connected with an air bottle and an air outlet connected with a vacuum generating device are arranged on each box.
2. An automated additive manufacturing powder storage device according to claim 1, wherein: and the sealing box is provided with an observation window for observing the transmission position of the powder collecting barrel in the box body.
3. An automated additive manufacturing powder storage device according to claim 1, wherein: the gas cylinder is externally connected with a gas inlet pipe, the gas inlet pipe is communicated with the gas inlets on the box bodies, and a first valve used for controlling the on-off of the gas outlet pipe is arranged on the gas inlet pipe.
4. An automated additive manufacturing powder storage device according to claim 3, wherein: the vacuum generating device is externally connected with an air outlet pipe, the air outlet pipe is communicated with the air outlets on the boxes, and a vacuum pressure gauge for detecting the vacuum degree in the boxes and a second valve for controlling the on-off of the air outlet pipe are arranged on the air outlet pipe.
5. An automated additive manufacturing powder storage device according to claim 4, wherein: the second valve is a one-way valve.
6. A method of storing an automated additive manufacturing powder storage device according to any one of claims 1-5, comprising the steps of:
1) adding metal powder: opening a sealing cover on a sealing box, placing a plurality of powder collecting barrels (4) filled with metal powder on a conveyor belt from a powder inlet, opening a sealing door, starting the conveyor belt, and conveying the powder collecting barrels from a vacuum chamber to an argon chamber for storage;
2) the powder is sent into an argon chamber: continuously placing the powder collecting barrel in the vacuum chamber as required, repeating the steps until the powder collecting barrel is sent into the argon chamber, and closing the sealing cover;
3) vacuumizing: keeping the sealing door open, starting the vacuum generating device, pumping out air in the vacuum chamber and the argon chamber through the air outlet pipe by the vacuum generating device, and closing the vacuum generating device when the pointer of the vacuum pressure gauge is less than or equal to-0.075 MPa;
4) filling argon gas: opening a gas cylinder to enable a gas inlet pipe to enter an argon chamber and a vacuum chamber from a gas inlet, stopping introducing the argon when the reading on the vacuum pressure gauge is more than or equal to 0, and storing metal powder in the argon chamber;
5) taking metal powder: opening a sealing door, starting a conveyor belt, conveying a powder collecting barrel to a vacuum chamber from an argon chamber, closing the sealing door when the powder collecting barrel reaches the vacuum chamber, opening a sealing cover, and taking out the powder collecting barrel from a powder outlet;
6) metal powder storage again: opening the sealing cover, placing the powder collecting barrel filled with metal powder on a conveyor belt of the vacuum chamber from the powder inlet, closing the sealing cover, starting the vacuum generating device when the sealing door is in a closed state, and pumping out air in the vacuum chamber from the air outlet through the air outlet pipe by the vacuum generating device; and opening the sealing door, starting the conveyor belt to convey the powder collecting barrel from the vacuum chamber to the argon chamber for storage, and closing the sealing door when the powder collecting barrel is positioned in the argon chamber.
7. The method of claim 6, wherein an operator observes a pressure reading on a vacuum gauge to control the opening and closing of the first valve and the second valve.
8. The storage method of an automated additive manufacturing powder storage device according to claim 6, wherein the position of the powder collection barrel is observed through the observation window during the rotation of the conveyor belt to control the progress of the conveyor belt.
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