A solid-phase stirring filament adding device combining fans with electrostatic screen powder

Abstract

The application relates to the field of solid-phase additive technology, and discloses a solid-phase stirring wire-adding additive device combining powder and static electricity screening powder, which comprises a material injection stirring head located at the bottom of a rotating main shaft, an electric main shaft shell arranged outside the rotating main shaft, a transition sleeve installed at the bottom of the electric main shaft shell, and the material injection stirring head located in the transition sleeve and used for discharging an additive component; a feeding mechanism located outside the transition sleeve and used for storing powder; an insulated wire feeder used for feeding wire through the feeding mechanism into the transition sleeve; and a static electricity generator, whose anode is connected with the wire on the output end of the insulated wire feeder through a wire, and whose cathode is connected with the feeding mechanism through a wire. The static electricity generator can generate an electric field to adsorb powder on the wire when the wire passes through the feeding mechanism, so that the powder moves synchronously with the wire, the effect of powder and wire combination is realized, the uniformity of the mixture of the wire and the powder is improved, and the strengthening effect of the final additive component is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of solid phase additive technology, in particular to a solid phase stirring wire feeding additive device combining powder and electrostatic screening powder. BACKGROUND

[0002] In the fields of aerospace, automotive manufacturing, national defense, and other high-precision manufacturing, the requirements for parts are usually very stringent, needing to meet the requirements of high strength, lightweight, and complex geometry. Traditional manufacturing methods, such as casting and cutting, are reliable but also limit flexibility and production efficiency. Additive manufacturing technology is attracting attention because it can achieve mold-free, rapid, and dense forming of high-performance complex structure metal parts. The molten additive manufacturing technology based on welding inevitably produces some defects in the manufacturing process, such as internal porosity, pores, thermal cracks, and alloy element burning, which seriously affect the quality of the product.

[0003] AFSD (Additive Friction Stir Deposition) technology, which is a new additive manufacturing process, combines the principles of friction stir and additive manufacturing. By using the heat generated by friction and mechanical stirring, materials are deposited layer by layer to form the final structure or part. It can effectively solve the defects such as pores and cracks produced by molten additive technology.

[0004] However, the existing powder-enhanced stirring additive manufacturing method separately feeds the wire and powder during execution, and then mixes them by stirring. However, relying solely on stirring and mixing is difficult to achieve sufficient mixing between the powder and the wire, and it is also inconvenient to control the amount of powder fed. SUMMARY

[0005] To overcome the deficiencies of the prior art, the present application provides a solid phase stirring wire feeding additive device combining powder and electrostatic screening powder, which solves the problem of insufficient mixing between the powder and the wire and the inconvenience of controlling the amount of powder fed in the prior art.

[0006] To achieve the above purpose, the present application is implemented by the following technical scheme: a solid phase stirring wire feeding additive device combining powder and electrostatic screening powder, comprising:

[0007] A material injection and stirring head is located at the bottom of the rotating main shaft, an electric spindle housing is provided outside the rotating main shaft, a transition sleeve is installed at the bottom of the electric spindle housing, and the material injection and stirring head is located in the transition sleeve and used for discharging additive components;

[0008] A feeding mechanism is located outside the transition sleeve and is used for storing powder;

[0009] An insulating wire feeder is used to feed the wire into the transition sleeve through a feeding mechanism;

[0010] The positive electrode of the electrostatic generator is connected to the wire material on the output end of the insulated wire feeder through a wire, and the negative electrode of the electrostatic generator is connected to the feeding mechanism through a wire.

[0011] Preferably, a transition ring is installed on the inner top of the transition sleeve, and feeding holes are provided in the middle of the transition sleeve and the transition ring, and the feeding holes on both sides are connected to each other. A positioning block is fixedly connected to the outer side of the transition ring, and the positioning block is embedded in the transition sleeve, and the transition sleeve is fixedly connected to the electric spindle housing through the mounting hole.

[0012] Preferably, a conical surface is provided in the middle of the inner wall of the transition sleeve, a straight surface is provided at the bottom of the inner wall of the transition sleeve, and the transition ring is located above the conical surface.

[0013] Preferably, the top of the injection stirring head is a fixed end and the bottom is a free end, the fixed end is located in the rotating main shaft, the top and bottom of the free end are respectively provided with a first thread and a second thread, the bottom surface of the free end is fixedly connected to a stirring needle, and the first thread and the second thread are both located in the straight surface.

[0014] Preferably, a guillotine is fixedly connected to the middle of the injection stirring head, the outer wall of the guillotine is divided into a front blade surface and a back blade surface, the front blade surface and the back blade surface are both semicircular, and the contact line between the two is the cutting edge, and the guillotine is located in the transition ring.

[0015] Preferably, the feeding mechanism includes silo one and silo two, the top surface of silo one is provided with a negative electrode head, the negative electrode head is connected to the negative electrode of the electrostatic generator, the top surface of silo two is provided with an air nozzle, the air nozzle is connected to the inert gas bottle through an air duct, and silo one is connected to the outer shell of the electric spindle.

[0016] Preferably, a first powder storage chamber is provided in the first silo, and a second powder storage chamber is provided in the second silo, and the first powder storage chamber and the second powder storage chamber are connected through a connecting groove.

[0017] Preferably, a wire feed hole and a wire outlet hole are respectively provided at the bottom of both sides of the silo, and an inner bottom of the silo is provided with an arc surface, the wire feed hole and the wire outlet hole are respectively located on both sides of the top surface of the arc surface, and the height of the wire feed hole is higher than the height of the wire outlet hole.

[0018] Preferably, a wire feeding ring is connected to one side of the hopper close to the wire outlet hole, and a wire entry hole 1 and a wire entry hole 2 are respectively provided on both sides of the middle part of the wire feeding ring. The diameter of the wire entry hole 1 is larger than the diameter of the wire entry hole 2, and the wire entry hole 1 is close to the wire outlet hole, and the wire entry hole 2 is close to the feeding hole.

[0019] Preferably, a mounting portion 1 is provided on the outer middle part of the bottom surface of the wire feeding ring, a mounting portion 2 is provided on the middle part of the bottom surface of the wire feeding ring, the wire feeding ring is connected to the transition sleeve through the mounting portion 1, and the wire feeding ring is connected to the hopper 1 through the mounting portion 2.

[0020] Working principle: When in use, first install the wire on the insulating wire feeder, then pass the wire into silo one, then open the cover on the top of silo two and place the powder in silo two, then connect the air guide tube to the air nozzle, then turn on the electrostatic generator. Since the positive pole of the electrostatic generator contacts the wire on the insulating wire feeder, the wire will be positively charged, and the negative pole of the electrostatic generator is connected to the negative pole head on the top of silo two. At this time, an electric field will be formed inside silo one, and the gas in the inert gas bottle will squeeze the powder inside silo two, so that the powder can be passed from the first powder storage chamber to the connected The connecting slot enters the second powder storage chamber. At this time, the wire can use the electrostatic field to adsorb the powder on the wire. At this time, the insulated wire feeder is driven to send the wire out, so that it enters the transition sleeve along the wire outlet hole, wire entry hole 1, wire entry hole 2 and feeding hole in turn. At this time, the rotating spindle is driven to drive the injection stirring head to rotate. At this time, the injection stirring head will drive the guillotine to rotate. At this time, the cutting edge on the guillotine will crush the wire. At this time, the crushed wire and powder will fall along the conical surface to the straight surface, and the first thread and the second thread will rotate with the injection stirring head, so that the two can be discharged from the bottom of the transition sleeve.

[0021] The present invention provides a solid-phase stirring and wire-adding device that combines vermicelli with electrostatic powder screening. It has the following beneficial effects:

[0022] 1. The present invention connects the positive electrode of the electrostatic generator to the wire on the insulated wire feeder, so that the wire can be positively charged, and connects its negative electrode to the feeding mechanism. When the wire passes through the feeding mechanism, the electric field generated at this time will adsorb the powder on the wire, causing it to move synchronously with the wire, achieving the effect of powder powder combination, thereby improving the uniformity of the mixing of the wire and powder, and further improving the strengthening effect of the final additive component.

[0023] 2. The present invention utilizes static electricity to adsorb powder onto the wire. Therefore, when the wire moves, it will only drive the powder in contact with it forward, while the powder that is not adsorbed will remain in the feeding mechanism. Therefore, by adjusting the power of the electrostatic generator, the size of the electric field can be adjusted, and then the amount of powder moved by the wire can be adjusted, thereby achieving the purpose of adjusting the amount of powder fed.

[0024] 3. The present invention provides a positioning block on the outside of the transition ring, thereby preventing the position of the transition ring inside the transition sleeve from shifting. When replacing a new transition ring, the positioning block can also guide the position of the transition ring, thereby improving the convenience of replacing the transition ring and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the transition sleeve of the present invention;

[0027] Figure 3 for Figure 2 Enlarged view of point C in the figure;

[0028] Figure 4 This is a schematic diagram of the structure of the injection and stirring head of the present invention;

[0029] Figure 5 It is a partial structural diagram of the feeding mechanism of the present invention;

[0030] Figure 6 for Figure 5 AA section view in;

[0031] Figure 7 for Figure 5 BB cross-sectional view in;

[0032] Figure 8 It is a partial structural schematic diagram of the wire feeding ring of the present invention.

[0033] Among them, 1. Transition sleeve; 101. Mounting hole; 102. Positioning block; 103. Feeding hole; 104. Transition ring; 1051. Conical surface; 1052. Straight surface; 2. Electric spindle housing; 3. Injection stirring head; 301. Fixed end; 3021. Cutting edge; 3022. Rake face; 3023. Flank face; 303. Free end; 3041. First thread; 3042. Second thread; 305. Stirring needle; 4. Rotating spindle; 5. Loading mechanism; 501. Negative electrode Head; 502, air nozzle; 5031, hopper one; 5032, hopper two; 504, wire inlet hole; 505, wire outlet hole; 5061, first powder storage chamber; 5062, second powder storage chamber; 507, connecting groove; 508, arc surface; 6, electrostatic generator; 7, inert gas bottle; 8, wire feeding ring; 801, mounting part one; 802, mounting part two; 803, wire inlet hole one; 804, wire inlet hole two; 9, air guide tube; 10, wire material; 11, insulated wire feeder; 12, additive component. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the specification of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Please see the attached Figure 1 -Attached Figure 2 An embodiment of the present invention provides a solid-phase stirring wire-adding additive device that combines vermicelli with electrostatic powder screening, including: an injection stirring head 3, which is located at the bottom of a rotating spindle 4, an electric spindle housing 2 is provided outside the rotating spindle 4, a transition sleeve 1 is installed at the bottom of the electric spindle housing 2, the injection stirring head 3 is located in the transition sleeve 1, and is used to discharge the additive component 12; a feeding mechanism 5, which is located outside the transition sleeve 1 and is used to store powder; an insulating wire feeder 11, which is used to feed the wire 10 into the transition sleeve 1 through the feeding mechanism 5; an electrostatic generator 6, whose positive electrode is connected to the wire 10 on the output end of the insulating wire feeder 11 through a wire, and whose negative electrode is connected to the feeding mechanism 5 through a wire.

[0036] During use, the injection stirring head 3 is located at the bottom of the rotating main shaft 4, and is responsible for discharging the additive component 12. When the stirring head rotates, it can stir the powder and wire 10 so that they can be discharged smoothly from the transition sleeve 1 to ensure uniform distribution and sufficient mixing of the materials. The transition sleeve 1 is installed at the bottom of the electric spindle housing 2, and is used to connect the stirring head with the external feeding system, and at the same time provide a channel for the discharge of the additive component 12; the feeding mechanism 5 is located on the outside of the transition sleeve 1, and is used to store the powder, and the powder can be transported into the transition sleeve 1. The insulated wire feeder 11 is used to feed the wire 10 is sent out, which is connected to the positive electrode of the electrostatic generator 6, and the feeding mechanism 5 is connected to the negative electrode of the electrostatic generator 6, so a loop can be formed at this time. Therefore, after the insulated wire feeder 11 sends the wire 10, when the wire 10 enters the feeding mechanism 5, an electric field will be formed inside the feeding mechanism 5. Since the wire 10 is positively charged, the powder will be adsorbed on the wire 10, and then move with the wire 10 and enter the transition sleeve 1, so that the powder can be combined, the uniformity of the mixing between the two can be improved, and the quality and strength of the final additive component 12 can be improved;

[0037] In addition, by adjusting the power of the electrostatic generator 6, the intensity of the generated electric field can be adjusted, thereby changing the adsorption force on the powder. When the adsorption force is large, more powder can be adsorbed on the wire 10, and when the adsorption force is small, the powder adsorbed on the wire 10 will decrease. It is not that when the adsorption force is constant, the larger particles of powder will have a smaller adsorption force on the wire 10 due to their own large mass, while the smaller particles of powder will be firmly adsorbed on the wire 10, so that the powder adsorbed on the wire 10 can be powder with smaller particles, so the effect of filtering the powder can also be achieved.

[0038] Please see the attached Figure 1 -Attached Figure 3A transition ring 104 is mounted on the inner top of the transition sleeve 1. Feed holes 103 are provided in the middle of both the transition sleeve 1 and the transition ring 104, and the feed holes 103 on both sides are interconnected. A positioning block 102 is fixedly connected to the outer side of the transition ring 104. The positioning block 102 is embedded in the transition sleeve 1, and the transition sleeve 1 is fixedly connected to the motor spindle housing 2 through the mounting hole 101. A tapered surface 1051 is provided in the middle of the inner wall of the transition sleeve 1, and a straight surface 1052 is provided at the bottom of the inner wall of the transition sleeve 1. The transition ring 104 is located above the tapered surface 1051.

[0039] Through the transition ring 104 at the top of the transition sleeve 1, the transition ring 104 can play the role of guiding and stabilizing material transmission, and the transition ring 104 and the middle of the transition sleeve 1 are provided with feeding holes 103, so that the wire 10 and powder can smoothly enter the transition sleeve 1, and the feeding holes 103 are located on both sides of the two. The feeding hole 103 on one side is used to convey powder and wire 10, while the feeding hole 103 on the other side is used to discharge inert gas, and a positioning block 102 is provided on the outside of the transition ring 104, which can make the transition ring 104 and the transition sleeve 1 in a relatively static state. When replacing a new transition ring 104, the position of the transition ring 104 can also be guided by the positioning block 102, thereby improving the convenience of replacing the transition ring 104, which is beneficial to later maintenance.

[0040] Please see the attached Figure 1 、 Figure 2 and Figure 4 The top of the injection and stirring head 3 is a fixed end 301, and the bottom is a free end 303. The fixed end 301 is located inside the rotating main shaft 4. The top and bottom of the free end 303 are respectively provided with a first thread 3041 and a second thread 3042. The bottom surface of the free end 303 is fixedly connected to a stirring needle 305. The first thread 3041 and the second thread 3042 are both located inside the straight surface 1052. The middle part of the injection and stirring head 3 is fixedly connected to a guillotine. The outer wall of the guillotine is divided into a rake surface 3022 and a flank surface 3023. Both the rake surface 3022 and the flank surface 3023 are semicircular, and the contact line between the two is the cutting edge 3021. The guillotine is located inside the transition ring 104.

[0041] After the powder and wire 10 enter the transition sleeve 1, the rotating main shaft 4 is driven to drive the injection stirring head 3 to rotate. At this time, the rotating main shaft 4 will simultaneously drive the guillotine, the first thread 3041 and the second thread 3042 to rotate. At this time, the guillotine will crush the wire 10 entering the transition sleeve 1, and the crushed wire 10 and powder will fall on the conical surface 1051. The top of the injection stirring head 3 is the fixed end 301, and the top of the injection stirring head 3 is connected to the inside of the rotating main shaft 4 through the fixed end 301. The fixed end 301 provides it with stable support to ensure that it will not deviate during high-speed rotation. Or loose, at the same time, the bottom of the injection stirring head 3 is a free end 303, and the top and bottom of the free end 303 are respectively provided with a first thread 3041 and a second thread 3042. The first thread 3041 can be used to transport the powder and wire 10 on the conical surface 1051 to the straight surface 1052, and then the second thread 3042 will discharge the powder and wire 10 on the straight surface 1052. The first thread 3041 and the second thread 3042 can enhance the contact area between the injection stirring head 3 and the material, thereby better exerting force on the material during the stirring process, thereby ensuring the mixing effect of the powder and wire 10;

[0042] There are multiple design options for the guillotine structure. In addition to the above designs, the guillotine structure can also be adjusted to other shapes, such as groove shape, fan-shaped sheet shape, or milling cutter shape; the guillotine structure can be coated with electroplating coatings such as titanium nitride coating, titanium carbide coating, aluminum oxide coating, tungsten carbide or multi-layer coating (titanium nitride coating and titanium carbide coating, aluminum oxide coating and titanium nitride coating), or vapor-deposited solid materials such as metal, ceramic or other compounds, or the blade can be directly selected from cemented carbide, or metal powder and diamond particles sintered (PCD);

[0043] The stirring needle 305 can be designed into various structures besides cylindrical, such as square, triangle, gear, etc. Its main purpose is to fully stir the particles and the substrate, so that the materials can flow and mix fully to obtain high-quality additive parts.

[0044] Please see the attached Figure 1 、 Figure 5 、 Figure 6 and Figure 7The feeding mechanism 5 includes a first silo 5031 and a second silo 5032. A negative electrode head 501 is provided on the top surface of the first silo 5031, which is connected to the negative electrode of the electrostatic generator 6. A gas nozzle 502 is provided on the top surface of the second silo 5032, which is connected to the inert gas cylinder 7 via an air guide tube 9. The first silo 5031 is connected to the motorized spindle housing 2. A first powder storage chamber 5061 is provided in the first silo 5031, and a second powder storage chamber 5062 is provided in the second silo 5032. The first and second powder storage chambers 5061 and 5062 are connected by a connecting groove 507. The bottom of both sides of the silo 5031 is respectively provided with a wire feed hole 504 and a wire outlet hole 505, and the bottom of the silo 5031 is provided with a curved surface 508. The wire feed hole 504 and the wire outlet hole 505 are respectively located on both sides of the top surface of the curved surface 508, and the height of the wire feed hole 504 is higher than the height of the wire outlet hole 505.

[0045] The powder can be stored in the second silo 5032, and the second silo 5032 is connected to the inert gas cylinder 7 through the air guide tube 9. Therefore, the inert gas can ensure that the powder is not in contact with oxygen or moisture in the air during storage and transportation, thereby preventing the oxidation or deliquescence of the powder. At the same time, the inert gas can also create a closed atmosphere inside the second silo 5032, which can reduce the impact of air flow on the powder and maintain the uniformity and purity of the powder. The bottom of the two sides of the silo 1 5031 are respectively A wire inlet hole 504 and a wire outlet hole 505 are provided, and the silo 1 5031 is connected to the negative pole of the electrostatic generator 6-. Therefore, after the wire 10 enters the silo 1 5031 from the wire inlet hole 504, it can fully contact with and absorb the powder inside the silo 1 5031, and finally be discharged from the wire outlet hole 505; and an arc surface 508 is also provided inside the silo 1 5031, so that the path length of the wire 10 passing through the silo 1 5031 can be extended, thereby ensuring that the wire 10 is combined with the powder.

[0046] Please see the attached Figure 1 and Figure 8 A wire feeding ring 8 is connected to the side of the silo 1 5031 near the wire outlet hole 505. A wire entry hole 1 803 and a wire entry hole 2 804 are respectively provided on both sides of the middle portion of the wire feeding ring 8. The diameter of the wire entry hole 1 803 is larger than that of the wire entry hole 2 804. The wire entry hole 1 803 is close to the wire outlet hole 505, and the wire entry hole 2 804 is close to the feeding hole 103. A mounting portion 1 801 is provided on the outer middle portion of the bottom surface of the wire feeding ring 8, and a mounting portion 2 802 is provided in the middle portion of the bottom surface of the wire feeding ring 8. The wire feeding ring 8 is connected to the transition sleeve 1 via the mounting portion 1 801, and the wire feeding ring 8 is connected to the silo 1 5031 via the mounting portion 2 802.

[0047] The wire feeding ring 8 can be used to guide the wire 10 to be smoothly output from the hopper 5031 and ensure that the wire 10 remains stable during the transmission process. By connecting the wire feeding ring 8 with the wire outlet hole 505, the wire 10 can smoothly enter the wire feeding ring 8 for the next step of transmission after passing through the hopper 5031, and the mounting part 801 can be used to connect the loading mechanism 5 with the wire feeding ring 8, and the mounting part 801 can be used to install the loading mechanism 5 and the wire feeding ring 8 on the outside of the transition sleeve 1.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solid-phase stirring and wire-adding device combining vermicelli with electrostatic sieving powder, characterized in that: include: a material injection stirring head (3) located at the bottom of a rotating spindle (4); an electric spindle housing (2) is provided outside the rotating spindle (4); a transition sleeve (1) is installed at the bottom of the electric spindle housing (2); the material injection stirring head (3) is located in the transition sleeve (1) and is used to discharge the additive component (12); A feeding mechanism (5), located outside the transition sleeve (1) and used for storing powder; An insulating wire feeder (11) is used to feed the wire material (10) into the transition sleeve (1) through the feeding mechanism (5); An electrostatic generator (6), the positive electrode of which is connected to the wire material (10) at the output end of the insulating wire feeder (11) through a wire, and the negative electrode of which is connected to the feeding mechanism (5) through a wire; The feeding mechanism (5) includes a first hopper (5031) and a second hopper (5032), the top surface of the first hopper (5031) is provided with a negative electrode head (501), the negative electrode head (501) is connected to the negative electrode of the electrostatic generator (6), the top surface of the second hopper (5032) is provided with a gas nozzle (502), the gas nozzle (502) is connected to the inert gas bottle (7) through the gas guide tube (9), and the first hopper (5031) is connected to the electric spindle housing (2); A first powder storage chamber (5061) is provided in the first silo (5031), and a second powder storage chamber (5062) is provided in the second silo (5032), and the first powder storage chamber (5061) and the second powder storage chamber (5062) are connected via a connecting groove (507); The bottoms of both sides of the silo (5031) are respectively provided with a wire feed hole (504) and a wire outlet hole (505); the bottom of the silo (5031) is provided with a curved surface (508); the wire feed hole (504) and the wire outlet hole (505) are respectively located on both sides of the top surface of the curved surface (508); and the height of the wire feed hole (504) is higher than that of the wire outlet hole (505); A wire feeding ring (8) is connected to one side of the hopper 1 (5031) close to the wire outlet hole (505), and a wire entry hole 1 (803) and a wire entry hole 2 (804) are respectively provided on both sides of the middle of the wire feeding ring (8), the diameter of the wire entry hole 1 (803) is larger than the diameter of the wire entry hole 2 (804), and the wire entry hole 1 (803) is close to the wire outlet hole (505), and the wire entry hole 2 (804) is close to the feeding hole (103).

2. The solid-phase stirring and wire-adding device for vermicelli combined with electrostatic powder screening according to claim 1 is characterized in that: A transition ring (104) is installed on the inner top of the transition sleeve (1), and feeding holes (103) are provided in the middle of the transition sleeve (1) and the transition ring (104), and the feeding holes (103) on both sides are interconnected. A positioning block (102) is fixedly connected to the outer side of the transition ring (104), and the positioning block (102) is embedded in the transition sleeve (1), and the transition sleeve (1) is fixedly connected to the electric spindle housing (2) through the mounting hole (101).

3. The solid-phase stirring and wire-adding device for vermicelli combined with electrostatic powder screening according to claim 2 is characterized in that: A conical surface (1051) is provided in the middle of the inner wall of the transition sleeve (1), a straight surface (1052) is provided at the bottom of the inner wall of the transition sleeve (1), and the transition ring (104) is located above the conical surface (1051).

4. The solid-phase stirring and wire-adding device for vermicelli combined with electrostatic powder screening according to claim 3 is characterized in that: The top of the injection stirring head (3) is a fixed end (301), and the bottom is a free end (303). The fixed end (301) is located in the rotating main shaft (4). The top and bottom of the free end (303) are respectively provided with a first thread (3041) and a second thread (3042). The bottom surface of the free end (303) is fixedly connected to a stirring needle (305). The first thread (3041) and the second thread (3042) are both located in the straight surface (1052).

5. The solid-phase stirring and wire-adding device for vermicelli combined with electrostatic powder screening according to claim 4 is characterized in that: A guillotine is fixedly connected to the middle of the injection stirring head (3), and the outer wall of the guillotine is divided into a front blade surface (3022) and a back blade surface (3023). The front blade surface (3022) and the back blade surface (3023) are both semicircular arc-shaped, and the contact line between the two is the cutting edge (3021), and the guillotine is located in the transition ring (104).

6. The device for solid-phase stirring and adding wires by combining vermicelli with electrostatic sieving powder according to claim 1, characterized in that: A mounting portion 1 (801) is provided on the outer middle portion of the bottom surface of the wire feeding ring (8), and a mounting portion 2 (802) is provided on the middle portion of the bottom surface of the wire feeding ring (8). The wire feeding ring (8) is connected to the transition sleeve (1) through the mounting portion 1 (801), and the wire feeding ring (8) is connected to the hopper 1 (5031) through the mounting portion 2 (802).

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