Electro-explosion node forming assembly and electro-explosion method metal nanopowder preparation equipment

Abstract

The application provides an electric explosion node forming assembly and an electric explosion method metal nano-powder preparation equipment. The electric explosion node forming assembly comprises a rotating seat, a fixed contact block, a movable contact block, a top fixed seat and a bottom fixed seat. The rotating seat is arranged between the top fixed seat and the bottom fixed seat, and a threading hole penetrating through the top fixed seat, the rotating seat and the bottom fixed seat is arranged. The rotating seat is used for rotating relative to the top fixed seat and the bottom fixed seat with the central axis of the threading hole as a rotating shaft. The fixed contact block and the movable contact block are respectively arranged on the rotating seat on both sides of the central axis. The fixed contact block is provided with a first groove for contacting the metal wire. The movable contact block is provided with a second groove, and the movable contact block can move to make the second groove contact or separate from the metal wire. The electric explosion node forming assembly and the electric explosion method metal nano-powder preparation equipment can improve the reliability and stability of the electric explosion node forming, and make the electric explosion node easy to form.

Description

Technical Field

[0001] This application relates to the field of metal nanopowder preparation equipment, and in particular to an electro-explosion node forming component and an electro-explosion method metal nanopowder preparation equipment. Background Technology

[0002] The electro-explosion method involves applying a high voltage to a metal wire in a specific medium or vacuum, instantly generating a powerful pulse current. This causes the metal wire to melt, vaporize, and expand rapidly, resulting in an explosion. The explosion products are then ejected at high speed in all directions under the influence of the blast shock wave, and upon cooling, form nanoparticles. To facilitate electro-explosion of the metal wire, electro-explosion nodes need to be formed on the wire; that is, bumps with lower resistance need to be formed on the wire, making it easier for the wire at these bumps to undergo an electro-explosion. In the process of developing this application, the inventors discovered that the existing technology has at least the following problems: Existing equipment for producing metal nanoparticles using the electro-explosion method has a relatively complex structure for the components used to form the electro-explosion nodes, and the stability of the formed nodes is poor. For example, some existing equipment uses rollers with serrated protrusions to roll the metal wire to form bumps. This forming method requires applying a certain pressure to the metal wire, but the applied pressure cannot be too high. This pressure is difficult to adjust, easily causing the metal wire to break or failing to accurately press out the bumps, resulting in poor reliability. Summary of the Invention

[0003] Based on this, this application provides an electric explosion node forming component and an electric explosion method metal nanopowder preparation equipment to solve the problems of difficult forming and poor forming reliability of electric explosion nodes in the prior art.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows: On one hand, embodiments of this application provide an electric explosion node forming assembly, including a rotating seat, a fixed contact block, a movable contact block, a top fixed seat, and a bottom fixed seat; The two ends of the rotating base are respectively connected to the top fixed base and the bottom fixed base, and a through wire hole is provided along the top fixed base, the rotating base and the bottom fixed base, the through wire hole being used to thread a metal wire; The rotating seat is used to rotate relative to the top fixing seat and the bottom fixing seat with the central axis of the thread hole as the rotation axis; The fixed contact block and the movable contact block are respectively mounted on the rotating base, and the mounting points of the fixed contact block and the movable contact block are respectively located on both sides of the central axis; the fixed contact block is provided with a first groove, which is used to contact the metal wire; the movable contact block is provided with a second groove, which is used to move towards or away from the central axis so that the second groove contacts or separates from the metal wire.

[0005] In one embodiment, the fixed contact block is a fixed wheel in the shape of a wheel, and the rim of the fixed wheel is provided with a first groove; the movable contact block is a movable wheel in the shape of a wheel, and the rim of the movable wheel is provided with a second groove; the center of the fixed wheel and the center of the movable wheel are respectively the mounting points of the rotating seat.

[0006] In one embodiment, the number of fixed wheels is one, the number of movable wheels is one, and the mounting points of the fixed wheels and the movable wheels are not on the same horizontal plane.

[0007] In one embodiment, there are two fixed wheels and one movable wheel. The fixed wheels are arranged side by side on the same side of the central axis, and the mounting point of the movable wheel is located vertically between the mounting points of the two fixed wheels.

[0008] In one embodiment, the rotating seat has a groove in the horizontal direction, and the movable contact block is installed in the groove by a connector. The movable contact block is fixed at different positions in the groove by the connector to achieve contact or separation with the metal wire.

[0009] In one embodiment, the electric explosion node forming assembly further includes a driving device, which is drivenly connected to the rotating seat and used to drive the rotating seat to rotate.

[0010] In one embodiment, the electric explosion node forming assembly further includes a mounting plate, the top fixing seat and the bottom fixing seat are respectively fixed on the mounting plate, and the driving device is fixed on the side of the mounting plate opposite to the top fixing seat.

[0011] In one embodiment, the driving device includes a motor and a transmission belt. The upper part of the rotating base is provided with a belt groove, and a corresponding through hole is provided on the mounting plate. The motor is fixed to the side of the mounting plate away from the rotating base. The transmission belt passes through the through hole, and the two opposite ends of the transmission belt on both sides of the mounting plate are respectively sleeved on the output shaft of the motor and the belt groove.

[0012] In one embodiment, the rotating seat is rotatably connected to the top fixed seat and the bottom fixed seat via bearings.

[0013] On the other hand, embodiments of this application provide an electrical explosion method for preparing metal nanopowder, including the electrical explosion node forming component as described above.

[0014] This application has at least the following beneficial effects: The electro-explosion node forming assembly provided by this application involves threading a metal wire through a wire hole, with both sides of the metal wire contacting the first groove of the fixed contact block and the second groove of the movable contact block, respectively. By rotating the rotating seat, the fixed and movable contact blocks cause the metal wire between them to rotate together, thus causing the metal wire located between the two contact blocks (fixed and movable contact blocks) to twist. The twisted metal wire deforms to form a protrusion, which is the electro-explosion node. The electro-explosion node forming assembly provided by this application has a simple overall structure and forms the electro-explosion node by twisting the metal wire, eliminating the need to apply pressure to the metal wire. This forming method is simpler and more reliable. The twisted metal wire can effectively form a protrusion and is less prone to breakage. The electro-explosion method metal nanopowder preparation equipment provided by this application includes the above-mentioned electro-explosion node forming assembly, and therefore also has the aforementioned beneficial effects. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the electric explosion node forming assembly from one perspective, according to an embodiment of this application.

[0016] Figure 2 for Figure 1 Another structural schematic diagram of the electro-explosive node forming component.

[0017] Figure 3 for Figure 1 Another structural schematic diagram of the electric explosion node molding component.

[0018] Figure 4 This is a schematic diagram of the assembly structure of the electric explosion node forming component and the mounting plate according to an embodiment of this application.

[0019] Figure 5 This is a schematic diagram of some components of the electro-explosion method metal nanopowder preparation equipment according to an embodiment of this application.

[0020] The meanings of the labels in the attached diagram are as follows: 20. Electro-explosive node forming assembly; 21. Rotary seat; 211. Top plate; 212. Vertical plate; 2121. Slide groove; 213. Bottom plate; 22. Fixed contact block; 221. First groove; 23. Movable contact block; 231. Second groove; 24. Top fixed seat; 25. Bottom fixed seat; 26. Wire hole; 27. Drive device; 271. Motor; 272. Transmission belt; 30. Guide wire assembly; 10. Material support frame; 40. Electrode assembly; 50. Mounting plate; 51. Through hole.

[0021] Note: In the attached diagram, the fixed wheel is used to illustrate the structure of the fixed contact block, and the movable wheel is used to illustrate the structure of the movable contact block. Therefore, when the fixed wheel appears in the following text, it will be referred to by the same reference numeral 22 as the fixed contact block; when the movable wheel appears, it will be referred to by the same reference numeral 23 as the movable contact block. Detailed Implementation

[0022] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the ways in which this application may be implemented. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Please see Figures 1 to 3The electrically explosive node forming assembly 20 of this application embodiment includes a rotating seat 21, a fixed contact block 22, a movable contact block 23, a top fixed seat 24, and a bottom fixed seat 25.

[0027] The two ends of the rotating base 21 are connected to the top fixed base 24 and the bottom fixed base 25 respectively, and a through wire hole 26 is provided along the top fixed base 24, the rotating base 21 and the bottom fixed base 25. The through wire hole 26 is used to thread a metal wire.

[0028] The rotating seat 21 is used to rotate relative to the top fixed seat 24 and the bottom fixed seat 25 with the central axis of the wire hole 26 as the rotation axis.

[0029] Fixed contact block 22 and movable contact block 23 are respectively mounted on rotating base 21, with their mounting points located on opposite sides of the central axis. Fixed contact block 22 has a first groove 221 for contacting the metal wire. Movable contact block 23 has a second groove 231, which moves towards or away from the central axis to contact or separate from the metal wire. The movable contact block 23 provides installation space for the metal wire during initial passage and also facilitates adjustment of the distance between the movable contact block 23 and fixed contact block 22 to accommodate metal wires of different diameters.

[0030] The electric explosion node forming assembly 20 of this application embodiment rotates the fixed contact block 22 and the movable contact block 23, causing the metal wire between them to rotate. The metal wire twists to form an electric explosion node. Its overall structure is simple, the forming method is simple and reliable.

[0031] Specifically, such as Figure 2 and Figure 3 As shown, the rotating base 21 includes a top plate 211, a vertical plate 212, a bottom plate 213, and a transmission part (not shown). The top plate 211 is on top, the bottom plate 213 is on the bottom, the vertical plate 212 connects the top plate 211 and the bottom plate 213, and the transmission part is located on the upper surface of the top plate 211. In this embodiment, the top plate 211 and the bottom plate 213 are circular plates with equal cross-sectional sizes, the vertical plate 212 is located in the middle of the top plate 211 and the bottom plate 213, and the transmission part is used to connect the drive device 27. The vertical plate 212 is located in a non-central part between the top plate 211 and the bottom plate 213, but slightly off to one side, so that the metal wire can pass smoothly through the top plate 211 and then contact the grooves (first groove 221, second groove 231) of the fixed contact block 22 and the movable contact block 23 in front of the vertical plate 212.

[0032] The specific shapes of the fixed contact block 22 and the movable contact block 23 are not limited, as long as they can drive the metal wire to rotate together with the rotating base 21. For example, in some embodiments, the fixed contact block 22 or the movable contact block 23 is a square block with a groove, the groove serving as a recess (first recess 221 or second recess 231) with its opening facing the wire hole 26. In other embodiments, the fixed contact block 22 is a wheel-shaped fixed wheel 22 with a first recess 221 on its rim; the movable contact block 23 is a wheel-shaped movable wheel 23 with a second recess 231 on its rim. The center of the fixed wheel 22 and the center of the movable wheel 23 serve as mounting points to the rotating base 21. For example, a through hole is provided at the center line of the fixed wheel 22, and a bolt is inserted through the through hole to fix the fixed wheel 22 to the upright plate 212 of the rotating base 21. The installation method of the movable wheel 23 is similar to that of the fixed wheel 22, and will not be described again. In this embodiment, the fixed contact block 22 is wheel-shaped, and a groove is formed on the entire rim of both the fixed wheel 22 and the movable wheel 23. This design facilitates the installation and use of the fixed wheel 22 and the movable wheel 23. If a block-shaped contact block is chosen, the groove position may change if the contact block is misaligned during installation or use, which may affect the forming reliability of the electric explosion node. However, by adopting a wheel-shaped structure for the fixed wheel 22 and the movable wheel 23, and setting a groove on the rim, it is possible to ensure that the fixed wheel 22 and the movable wheel 23 can maintain reliable contact with the metal wire during operation, and the groove on the rim ensures that the fixed wheel 22 and the movable wheel 23 make point contact with the metal wire. Even if the fixed wheel 22 and the movable wheel 23 move during use, they rotate around their center, which still ensures reliable contact between the groove and the metal wire.

[0033] The number of fixed wheels 22 and movable wheels 23 can be selected according to actual needs, but there must be at least one fixed wheel 22 and one movable wheel 23, and they must be matched. When installing the fixed wheels 22 and movable wheels 23, their mounting points cannot be on the same horizontal plane; otherwise, the wire cannot be twisted. For example, in some embodiments, there is one fixed wheel 22 and one movable wheel 23. The mounting point of the fixed wheel 22 is located above or below the mounting point of the movable wheel 23, and the mounting points of the fixed wheel 22 and the movable wheel 23 are located on opposite sides of the central axis of the thread hole 26. Or, in other embodiments, such as... Figure 1 and Figure 3As shown, there are two fixed wheels 22 and one movable wheel 23. The fixed wheels 22 are arranged side by side, one above the other, on the same side of the central axis. The mounting point of the movable wheel 23 is located vertically between the mounting points of the two fixed wheels 22. This creates three contact points for the metal wire: upper, middle, and lower. The one movable wheel 23 and the two fixed wheels 22 can simultaneously form two electro-explosion nodes, improving the forming efficiency of the electro-explosion nodes and also providing a certain degree of straightening effect on the metal wire.

[0034] like Figure 2 and Figure 3 As shown, the vertical plate 212 of the rotating base 21 has a horizontally oriented groove 2121. The movable contact block 23 is installed in the groove 2121 via a connector. The movable contact block 23 is fixed at different positions in the groove 2121 by the connector to achieve contact or separation with the metal wire. For example, a bolt is inserted through the center of the movable contact block 23. The bolt passes through the movable contact block 23 and the groove 2121 and is threadedly connected to a nut, thereby locking the movable contact block 23 onto the rotating base 21 in the groove 2121. When initially installing the metal wire, loosen the nut and move the movable contact block 23 away from the fixed contact block 22. After the metal wire smoothly passes through the wire hole 26 of the top fixed seat 24, through the wire holes 26 of the top plate 211 and the bottom plate 213, and smoothly exits through the wire hole 26 of the bottom fixed seat 25, move the movable contact block 23 closer to the fixed contact block 22. After the second groove 231 contacts the metal wire, tighten the nut to fix the movable contact block 23 on the rotating seat 21.

[0035] like Figures 1 to 3 As shown, the electrically explosive node forming assembly 20 of this embodiment also includes a driving device 27, which is drivenly connected to the rotating base 21 and used to drive the rotating base 21 to rotate. Figure 4 As shown, the electro-explosive node forming assembly 20 of this embodiment also includes a mounting plate 50, a top fixing seat 24 and a bottom fixing seat 25 respectively fixed on the mounting plate 50, and a driving device 27 fixed on the side of the mounting plate 50 opposite to the top fixing seat 24. The driving device 27 and the rotating seat 21 are located on opposite sides of the mounting plate 50, which makes the entire mechanism look simpler in the working area direction and avoids interference between the driving device 27 and the components in the front working area.

[0036] The drive device 27 in this embodiment includes a motor 271 and a transmission belt 272. The upper part of the rotating base 21 is provided with a belt groove, and a corresponding through hole 51 is provided on the mounting plate 50. The motor 271 is fixed to the side of the mounting plate 50 opposite to the rotating base 21. The transmission belt 272 passes through the through hole 51, and its two opposite ends on both sides of the mounting plate 50 are respectively sleeved on the output shaft of the motor 271 and the belt groove. The belt groove is located at the transmission part above the top plate 211. When the motor 271 starts, the output shaft rotates, and through the transmission action of the belt, the transmission part rotates together, thereby driving the rotating base 21 to rotate.

[0037] A bearing (not shown) may be installed between the transmission part of the rotating seat 21 and the top fixed seat 24, and a bearing may also be installed between the base plate 213 of the rotating seat 21 and the bottom fixed seat 25, so as to ensure the rotation accuracy of the rotating seat 21 and reduce the wear of the rotating shaft.

[0038] like Figure 5 As shown in the illustration, this application also provides an electro-explosion method for preparing metal nanopowder, including the electro-explosion node forming assembly 20 described in the above embodiment, as well as a wire guide assembly 30, a material support frame 10, and an electrode assembly 40. The material support frame 10 is used to place the raw material, i.e., the metal wire. The wire guide assembly 30 is used to provide the power for the downward movement of the metal wire, i.e., the downward force. When providing the downward force, the wire guide assembly 30 clamps the metal wire, making it easy for the electro-explosion node forming assembly 20 to form electro-explosion nodes on the metal wire. The electrode assembly 40 is used to apply voltage to the metal wire to cause an electro-explosion and form metal nanoparticles. The metal wire, under the force of the wire guide assembly 30, moves downward from the material support frame 10 to the electro-explosion node forming assembly 20, forming protrusions, then moves downward to the wire guide assembly 30, and finally electro-explodes at the electrode assembly 40.

[0039] The electro-explosion node forming component and the electro-explosion method metal nanopowder preparation equipment of this application have a simple overall structure. They form electro-explosion nodes by twisting metal wires, which is convenient to operate and has high forming reliability. The spacing between the fixed contact block and the movable contact block is adjustable, which facilitates the installation of metal wires and is applicable to metal wires of different specifications and sizes.

[0040] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electrically detonatable node-forming assembly, characterized by Includes a rotating base, a fixed contact block, a movable contact block, a top fixed base, and a bottom fixed base; The two ends of the rotating base are respectively connected to the top fixed base and the bottom fixed base, and a through wire hole is provided along the top fixed base, the rotating base and the bottom fixed base, the through wire hole being used to thread a metal wire; The rotating seat is used to rotate relative to the top fixing seat and the bottom fixing seat with the central axis of the thread hole as the rotation axis; The fixed contact block and the movable contact block are respectively mounted on the rotating base, and the mounting points of the fixed contact block and the movable contact block are respectively located on both sides of the central axis; the fixed contact block is provided with a first groove, which is used to contact the metal wire; the movable contact block is provided with a second groove, which is used to move towards or away from the central axis so that the second groove contacts or separates from the metal wire.

2. The electrically explodable node-forming assembly of claim 1, wherein, The fixed contact block is a fixed wheel in the shape of a wheel, and the rim of the fixed wheel is provided with a first groove; the movable contact block is a movable wheel in the shape of a wheel, and the rim of the movable wheel is provided with a second groove; the center of the fixed wheel and the center of the movable wheel are respectively the mounting points of the rotating seat.

3. The electrically explodable node-forming assembly of claim 2, wherein, The number of fixed wheels is one, the number of movable wheels is one, and the mounting points of the fixed wheels and the movable wheels are not on the same horizontal plane.

4. The electrically explodable node forming assembly of claim 2, wherein, The number of fixed wheels is two, and the number of movable wheels is one. The fixed wheels are arranged side by side on the same side of the central axis, and the mounting point of the movable wheel is located between the mounting points of the two fixed wheels in the vertical direction.

5. The electrically explodable node-forming assembly of claim 1, wherein, The rotating seat has a horizontal groove, and the movable contact block is installed in the groove through a connector. The movable contact block is fixed at different positions in the groove through the connector to achieve contact or separation with the metal wire.

6. The electrically explodable node-forming assembly of claim 1, wherein, It also includes a drive device, which is connected to the rotating base and is used to drive the rotating base to rotate.

7. The electrically explodable node forming assembly of claim 6, wherein, It also includes a mounting plate, the top fixing seat and the bottom fixing seat are respectively fixed on the mounting plate, and the driving device is fixed on the side of the mounting plate opposite to the top fixing seat.

8. The electrically explodable node forming assembly of claim 7, wherein, The driving device includes a motor and a transmission belt. The upper part of the rotating base is provided with a belt groove, and a corresponding through hole is opened on the mounting plate. The motor is fixed to the side of the mounting plate away from the rotating base. The transmission belt passes through the through hole, and the two opposite ends of the transmission belt on both sides of the mounting plate are respectively sleeved on the output shaft of the motor and the belt groove.

9. The electro-explosive node forming assembly as described in claim 1, characterized in that, The rotating seat is rotatably connected to the top fixed seat and the bottom fixed seat via bearings.

10. An apparatus for preparing metal nanopowder by electro-explosion, characterized in that, Includes the electro-explosive node forming assembly as described in any one of claims 1 to 9.

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