Continuous guide wire mechanism and electric explosion method metal nanopowder preparation equipment

Abstract

The application provides a continuous wire guiding mechanism and an electric explosion method metal nanopowder preparation device. The continuous wire guiding mechanism comprises a guiding assembly, an electric explosion node forming assembly and a wire driving assembly arranged in sequence from top to bottom. The guiding assembly is used for guiding the metal wire on the metal wire disc to the electric explosion node forming assembly below. The electric explosion node forming assembly is provided with a threading hole penetrating from top to bottom, the threading hole is used for passing the metal wire, and the electric explosion node forming assembly is used for forming the electric explosion node by twisting the metal wire passing through the threading hole in a rotating manner. The wire driving assembly comprises a first wire guiding wheel and a second wire guiding wheel, the metal wire passing through the threading hole is clamped between the first wire guiding wheel and the second wire guiding wheel, and the first wire guiding wheel and the second wire guiding wheel are used for relative rotation to move the metal wire downward. The continuous wire guiding mechanism and the electric explosion method metal nanopowder preparation device provided by the application have simple overall structure, simple metal wire moving path and stable and reliable electric explosion node forming.

Description

Technical Field

[0001] This application relates to the field of metal nanopowder preparation equipment, and in particular to a continuous wire guiding mechanism and an electro-explosion method for preparing metal nanopowder. 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 pulsed 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. Equipment for preparing metal nanoparticles using the electro-explosion method requires continuously guiding the metal wire to the positive and negative electrodes to apply voltage. In the process of developing this application, the inventors discovered that the existing technology suffers from at least the following problems: the overall structure of the continuous wire guiding mechanism is overly complex, the metal wire movement path is complex, and the stability of the electro-explosion node formation is poor. Summary of the Invention

[0003] Based on this, this application provides a continuous wire guiding mechanism and an electro-explosion method for preparing metal nanopowder, so as to solve at least one of the problems existing in the prior art, such as complex structure, complex metal wire movement path and poor stability of electro-explosion node forming.

[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 a continuous wire guide mechanism, including a guide assembly, an electric explosion node forming assembly, and a wire guide drive assembly arranged in a row from top to bottom; The guide assembly is used to guide the wire on the wire spool toward the lower electro-explosive node forming assembly. The electric explosion node forming assembly has a through hole running from top to bottom. The through hole is used to thread the metal wire through. The electric explosion node forming assembly is used to form an electric explosion node by rotating the metal wire passing through the through hole to twist it. The wire guide drive assembly includes a first wire guide wheel and a second wire guide wheel. The metal wire passing through the wire hole is clamped between the first wire guide wheel and the second wire guide wheel. The first wire guide wheel and the second wire guide wheel are used to rotate relative to each other so that the metal wire moves downward.

[0005] In one embodiment, the continuous wire guiding mechanism further includes a mounting plate, the guiding assembly is disposed on the top of the mounting plate, the electro-explosion node forming assembly is disposed in the middle of the mounting plate, and the wire guiding drive assembly is disposed on the mounting plate below the electro-explosion node forming assembly; a material support frame is provided on the top of the mounting plate on the side opposite to the wire guiding drive assembly, and the material support frame is used to place the metal wire spool.

[0006] In one embodiment, the guide assembly includes a mounting frame and guide wheels; the mounting frame is fixed to the top of the mounting plate; the guide wheels are mounted on the mounting frame via a pivot and are used to rotate relative to the mounting frame; the diameter of the guide wheels gradually increases from the middle to both ends.

[0007] In one embodiment, the electric explosion node forming assembly includes a rotating seat, a fixed wheel, a movable wheel, a top fixed seat, and a bottom fixed seat; The top fixing seat and the bottom fixing seat are fixedly mounted on the mounting plate at an interval between them; The two ends of the rotating seat are respectively connected to the top fixed seat and the bottom fixed seat, and the rotating seat is used to rotate infinitely relative to the top fixed seat and the bottom fixed seat with the central axis of the thread hole as the rotation axis; The fixed wheel and the movable wheel are respectively mounted on the rotating base, and the mounting points of the fixed wheel and the movable wheel are respectively located on both sides of the central axis; the rim of the fixed wheel is provided with a first groove, which is used to contact the metal wire; the rim of the movable wheel is provided with a second groove, and the movable wheel is used to move towards or away from the central axis so that the second groove contacts or separates from the metal wire.

[0008] In one embodiment, the number of fixed wheels is one or two, 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.

[0009] In one embodiment, the guide wire drive assembly includes a fixed block, a linear motion device, a drive block, a first guide wire wheel, and a second guide wire wheel; The fixing block is fixed to the mounting plate; The linear motion device is inserted into the fixed block, and the driving end of the linear motion device is drivenly connected to the driving block; The first guide wheel is rotatably connected to the drive block, and the second guide wheel is rotatably connected to the mounting plate. The second guide wheel is the driving wheel, and the first guide wheel is the driven wheel. The wheel surface of the second guide wheel and the wheel surface of the first guide wheel are used to clamp the metal wire. The linear motion device is used to drive the drive block to move the first guide wheel toward the second guide wheel or away from the second guide wheel.

[0010] In one embodiment, the linear motion device includes a lead screw, a nut, and an elastic element; the lead screw passes through the mounting hole of the fixed block, the nut is threadedly connected to the lead screw, one end of the elastic element is fixedly connected to the nut, and the other end is fixedly connected to the drive block, the elastic element is a hollow part so that the nut can move relative to the lead screw.

[0011] In one embodiment, a first guide wheel and a second guide wheel are respectively arranged to form a guide wheel group, and the number of guide wheel groups is not less than one group, and each guide wheel group is arranged side by side vertically.

[0012] In one embodiment, the continuous wire guiding mechanism further includes a wire guide tube, the number of which is one or more. The wire guide tube is used to be sleeved on the outside of the metal wire. The wire guide tube is fixed on the mounting plate between the guiding assembly and the electric explosion node forming assembly, and / or, due to the mounting plate between the electric explosion node forming assembly and the wire guiding drive assembly, and / or, fixed below the wire guiding drive assembly.

[0013] On the other hand, embodiments of this application provide an apparatus for preparing metal nanopowder by electro-explosion method, including the continuous guide wire mechanism as described above.

[0014] This application has at least the following beneficial effects: The continuous wire guiding mechanism provided by this application has a simple overall structure, including a guiding component, an electro-explosion node forming component, and a wire driving component arranged sequentially from top to bottom. The movement path of the metal wire is simple; starting from the guiding component, it passes through the electro-explosion node forming component and the wire driving component, and then continues to move downwards, forming a straight downward movement path. The electro-explosion node forming component forms electro-explosion nodes by twisting the metal wire. This forming method is simple, reliable, and can effectively electro-explode nodes, while minimizing the risk of metal wire breakage. The wire driving component provides the power for the metal wire movement through the relative rotation of the first and second guide wheels, resulting in a simple structure and reliable driving force. The electro-explosion method metal nanopowder preparation equipment provided by this application includes the aforementioned continuous wire guiding mechanism, and therefore also possesses the aforementioned beneficial effects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the continuous guide wire mechanism according to an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of the electric explosion node forming assembly according to an embodiment of this application.

[0017] Figure 3 This is a front structural diagram of the guide wire drive assembly according to an embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the back structure of the guide wire drive assembly according to an embodiment of this application.

[0019] Figure 5 This is a schematic diagram of the assembly structure of the guide wire drive assembly and the mounting plate according to an embodiment of this application.

[0020] Figure 6 This is a schematic diagram of some components of the electro-explosion method metal nanopowder preparation equipment according to an embodiment of this application.

[0021] The meanings of the labels in the attached diagram are as follows: 10. Material support rack; 20. Electro-explosive node forming assembly; 21. Rotary seat; 211. Slide groove; 22. Fixed wheel; 221. First groove; 23. Movable wheel; 231. Second groove; 24. Top fixed seat; 25. Bottom fixed seat; 26. Wire hole; 27. Rotary seat drive device; 271. Motor; 272. Transmission device; 30. Guide wire drive assembly; 31. Fixing block; 32. Linear motion device; 321. Lead screw; 322. Nut; 323. Elastic element; 33. Drive block; 34. Guide wire wheel assembly; 341. First guide wire wheel; 342. Second guide wire wheel; 35. Guide rod; 36. Drive wheel drive device; 40. Electrode assembly; 50. Mounting plate; 60. Guide assembly; 61. Fixture; 62. Guide wheel; 70. Guide wire cannula; 100. Metal wire reel; 101. Metal wire. 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 Figure 1 The continuous wire guide mechanism of this application embodiment includes a guide assembly 60, an electric explosion node forming assembly 20 and a wire guide drive assembly 30 arranged in a row from top to bottom.

[0027] The guide assembly 60 is used to guide the wire 101 on the wire spool 100 toward the lower electro-explosive node forming assembly 20.

[0028] The electric explosion node forming assembly 20 is provided with a through hole 26 running from top to bottom. The through hole 26 is used to allow the metal wire 101 to pass through. The electric explosion node forming assembly 20 is used to form an electric explosion node by rotating the metal wire 101 that passes through the through hole 26.

[0029] The wire guide drive assembly 30 includes a first wire guide wheel 341 and a second wire guide wheel 342. The metal wire 101 passing through the wire hole 26 is clamped between the first wire guide wheel 341 and the second wire guide wheel 342. The first wire guide wheel 341 and the second wire guide wheel 342 are used to rotate relative to each other so that the metal wire 101 moves downward.

[0030] The continuous wire guide mechanism of this embodiment provides a straight path for the metal wire 101 to move from top to bottom. The metal wire 101 will not bend or deform during the movement. Therefore, it is not necessary to set up a straightening component for the metal wire 101 separately. The simple path makes the metal wire 101 easy to move.

[0031] Specifically, the continuous wire guiding mechanism of this embodiment also includes a mounting plate 50, a guiding assembly 60 disposed on the top of the mounting plate 50, an electro-explosion node forming assembly 20 disposed in the middle of the mounting plate 50, and a wire guiding drive assembly 30 disposed on the mounting plate 50 below the electro-explosion node forming assembly 20. A material support frame 10 is provided on the top of the mounting plate 50 on the side opposite to the wire guiding drive assembly 30, and the material support frame 10 is used to hold the wire spool 100. The wire spool 100 is a roller wound with wire material. The wire spool 100 is mounted on the material support frame 10, and when the wire 101 is pulled, the wire spool 100 rotates around the shaft on the material support frame 10. The wire spool 100 is mounted on the side of the mounting plate 50 opposite to the electro-explosion node forming assembly 20 and the wire guiding drive assembly 30, which avoids interference with these components, making the overall structure of the working surface of the mechanism simpler, and also facilitating the replacement of the wire spool 100.

[0032] The guide assembly 60 in this embodiment includes a fixed frame 61 and a guide wheel 62. The fixed frame 61 is fixed to the top of the mounting plate 50. The guide wheel 62 is mounted on the fixed frame 61 via a rotating shaft and is used to rotate relative to the fixed frame 61. The diameter of the guide wheel 62 gradually increases from the middle to both ends, that is, the overall shape of the guide wheel 62 is a structure that is thick at both ends and thin in the middle, and is composed of a structure similar to two truncated cones. The two truncated cones are stacked axially, and the small ends of the two truncated cones are close to each other. This structure is beneficial for guiding the metal wire 101. Even if the metal wire 101 is deviated, the structure of the guide wheel 62 will correct it and keep it in the middle position of the guide wheel 62.

[0033] like Figure 1 and Figure 2 As shown, to make the metal wire 101 more prone to electrical explosion, an electrical explosion node needs to be formed on the metal wire 101, that is, a bump with lower resistance needs to be formed on the metal wire 101, making the metal wire 101 at the bump more prone to electrical explosion. An electrical explosion node can be formed on the metal wire 101 by setting the electrical explosion node forming component 20.

[0034] The electrically explosive node forming assembly 20 of this embodiment includes a rotating seat 21, a fixed wheel 22, a movable wheel 23, a top fixed seat 24, and a bottom fixed seat 25.

[0035] The top mounting base 24 and the bottom mounting base 25 are fixedly mounted on the mounting plate 50 at intervals.

[0036] The two ends of the rotating base 21 are connected to the top fixed base 24 and the bottom fixed base 25 respectively, and the rotating base 21 is used to rotate infinitely relative to the top fixed base 24 and the bottom fixed base 25 with the central axis of the wire hole 26 as the rotation axis.

[0037] Fixed wheel 22 and movable wheel 23 are respectively mounted on rotating base 21, and the mounting points of fixed wheel 22 and movable wheel 23 are located on both sides of the central axis of wire hole 26. Fixed wheel 22 has a first groove 221 on its rim, which is used to contact the metal wire 101. Movable wheel 23 has a second groove 231 on its rim, and is used to move towards or away from the central axis so that the second groove 231 contacts or separates from the metal wire 101.

[0038] The movable wheel 23 provides installation space when the wire 101 is initially inserted, and also meets the needs of using wires 101 with different diameters. The movable wheel 23 can be used to adjust the distance between itself and the fixed wheel 22 so that the distance matches the diameter of the wire 101.

[0039] The centers of the fixed wheel 22 and the movable wheel 23 serve as mounting points for the rotating seat 21. For example, a through hole is provided at the axial center of the fixed wheel 22, and a bolt is inserted through the through hole to fix the fixed wheel 22 to the rotating seat 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, a groove is formed around 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. The wheel-shaped structure of the fixed wheel 22 and the movable wheel 23, with a groove on the rim, ensures reliable contact between the fixed wheel 22 and the movable wheel 23 and the wire 101 during operation. The groove on the rim ensures point contact between the fixed wheel 22 and the movable wheel 23 and the wire 101. Even if the fixed wheel 22 and the movable wheel 23 move during use, they rotate around their center, ensuring reliable contact between the groove and the wire 101.

[0040] 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 metal wire 101 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 2As 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 of the wire hole 26. The mounting point of the movable wheel 23 is located vertically between the mounting points of the two fixed wheels 22. In this way, three contact points (upper, middle, and lower) are formed for the metal wire 101. 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. At the same time, it can also provide a certain straightening effect on the metal wire 101.

[0041] The movable wheel 23 can be connected to the rotating base 21 via bolts or other connecting parts. The rotating base 21 has a horizontally oriented groove 211. The bolt passes through the axial center of the movable wheel 23, then through the groove 211, and is locked with a nut to fix the movable wheel 23 onto the rotating base 21. By loosening the nut and moving the movable wheel 23 along the groove 211, the distance between the movable wheel 23 and the metal wire 101 can be adjusted, allowing them to contact or separate. After adjusting to the desired position, tightening the nut will fix the movable wheel 23 in place, which is very convenient.

[0042] The electro-explosive node forming assembly 20 of this embodiment also includes a rotary seat drive device 27, which is drivenly connected to the rotary seat 21 and used to drive the rotary seat 21 to rotate. To achieve infinite rotational movement of the rotary seat 21, the rotary seat drive device 27 can be drivenly connected to the rotary seat 21 through a transmission device 272. For example, the rotary seat drive device 27 includes a motor 271 and a transmission device 272. The transmission device 272 can be a transmission component such as a conveyor belt or gear. The upper part of the rotary seat 21 is provided with a transmission part for use in conjunction with the rotary seat drive device 27. The transmission device 272 is drivenly connected to the output end of the motor 271 and the transmission part of the rotary seat 21 respectively. To make the entire mechanism look simpler, the main body of the rotary seat drive device 27 can be fixed on the side of the mounting plate 50 facing away from the rotary seat 21.

[0043] like Figure 3 and Figure 4 As shown, the wire guide drive assembly 30 in this embodiment includes a fixing block 31, a linear motion device 32, a drive block 33, a first wire guide wheel 341, and a second wire guide wheel 342.

[0044] The fixing block 31 is fixed to the mounting plate 50.

[0045] The linear motion device 32 is inserted into the fixed block 31, and the driving end of the linear motion device 32 is drivenly connected to the driving block 33.

[0046] The first guide wheel 341 is rotatably connected to the drive block 33, and the second guide wheel 342 is rotatably connected to the mounting plate 50. The second guide wheel 342 is the driving wheel, and the first guide wheel 341 is the driven wheel. The wheel surface of the second guide wheel 342 and the wheel surface of the first guide wheel 341 are used to clamp the metal wire 101. The linear motion device 32 is used to drive the drive block 33, thereby driving the first guide wheel 341 to move towards or away from the second guide wheel 342.

[0047] In this embodiment, the wire guide drive assembly 30 uses the friction between the first wire guide wheel 341 and the second wire guide wheel 342 to provide the driving force for the metal wire 101 to move downward. Through the clamping force of the first wire guide wheel 341 and the second wire guide wheel 342, it not only provides the power for the metal wire 101 to move downward, but also plays a certain straightening role for the metal wire 101.

[0048] The linear motion device 32 in this embodiment includes a lead screw 321, a nut 322, and an elastic element 323. The lead screw 321 passes through the mounting hole of the fixed block 31, the nut 322 is threadedly connected to the lead screw 321, one end of the elastic element 323 is fixedly connected to the nut 322, and the other end is fixedly connected to the drive block 33. The elastic element 323 is a hollow part so that the nut 322 can move relative to the lead screw 321. By setting the linear motion device 32, the distance between the first guide wheel 341 and the second guide wheel 342 can be adjusted to match the diameter of the metal wire 101, meeting the usage requirements of metal wires 101 with different diameters.

[0049] In this embodiment, the elastic element 323 is a spring. One end of the spring is connected to the nut 322, and the other end is connected to the drive block 33. The spring needs to have a certain stiffness to prevent the spring from not easily driving the drive block 33 to move together when the lead screw 321 rotates. Setting the elastic element 323 at the drive end of the linear motion device 32 makes it easier to clamp the metal wire 101. For example, after a roll of metal wire 101 is used up, a new metal wire 101 needs to be replaced. If the diameter of the metal wire 101 remains unchanged, it is not necessary to adjust the lead screw 321. The drive block 33 can be manually pushed directly to compress the elastic element 323 and move away from the second guide wheel 342, thereby increasing the distance between the first guide wheel 341 and the second guide wheel 342. After the metal wire 101 passes through the gap between the two guide wheels, the hand is released. Under the elastic force of the elastic element 323, the drive block 33 moves towards the second guide wheel 342 and clamps the metal wire 101. The entire clamping process is very convenient. Furthermore, the elastic element 323 ensures that the two guide wheels clamp the metal wire 101 tightly while avoiding excessive clamping force and preventing the metal wire 101 from getting stuck, thus further improving the reliability of the guide wire.

[0050] In some embodiments, the wire guide drive assembly 30 further includes a guide rod 35, which is fixed to the mounting plate 50. A guide groove is provided on the drive block 33, and a lead screw 321 drives the nut 322 to reciprocate along the guide rod 35. The guide rod 35 is positioned in the same direction as the lead screw 321. When the lead screw 321 rotates and drives the nut 322 to reciprocate, it also drives the drive block 33 to reciprocate along the direction of the guide rod 35. When the drive block 33 is manually pushed to move its compression spring away from the second wire guide wheel 342, the drive block 33 also moves along the direction of the guide rod 35. The guide rod 35 ensures smoother and more reliable movement of the drive block 33.

[0051] A first guide wheel 341 and a second guide wheel 342 are correspondingly arranged to form a guide wheel group 34, and the number of guide wheel groups 34 is not less than one group. That is, a guide wheel group 34 includes two guide wheels, a first guide wheel 341 and a second guide wheel 342. Each guide wire drive assembly 30 includes at least one group of guide wheel groups 34, that is, at least one first guide wheel 341 and a second guide wheel 342. For example, in some embodiments, only one group of guide wheel groups 34 is included, with two guide wheels of equal size arranged side by side in the horizontal direction. In other embodiments, two groups of guide wheel groups 34 are included, with the two groups of guide wheel groups 34 spaced vertically and arranged side by side. This includes four guide wheels: two first guide wheels 341 arranged side-by-side on the drive block 33, and two second guide wheels 342 arranged side-by-side on the mounting plate 50. The first guide wheels 341 and second guide wheels 342 in the upper row are correspondingly arranged, as are those in the lower row. The metal wire 101 passes between the two guide wheels in the upper row and exits between the two guide wheels in the lower row. This design, with two sets of guide wheel groups 34 opposite to one set, allows the two groups to work together on the metal wire 101, resulting in stronger wire guiding stability. Furthermore, the clamping action of the upper and lower guide wheels also provides good straightening for the metal wire 101.

[0052] To ensure greater friction between the first guide wheel 341 and the second guide wheel 342, the surfaces of the two guide wheels can be made of rubber material, such as ordinary rubber or polyurethane. Alternatively, the entire guide wheel can be made of rubber material.

[0053] like Figure 5As shown, the wire guide drive assembly 30 in this embodiment also includes a drive wheel drive device 36, which is fixed on the mounting plate 50 and used to drive the second wire guide wheel 342 to rotate. The drive wheel drive device 36 may be a motor, for example, with the motor housing fixed on the mounting plate 50. The drive shaft of the motor is fixedly connected to the second wire guide wheel 342 to drive the second wire guide wheel 342 to rotate.

[0054] like Figure 1 and Figure 6 As shown, in some embodiments, the continuous wire guiding mechanism further includes a wire guide tube 70, and there are more than one wire guide tube 70. The wire guide tube 70 is used to sleeve the metal wire 101. The wire guide tube 70 is fixed on the mounting plate 50 between the guide assembly 60 and the electric explosion node forming assembly 20, and / or, fixed on the mounting plate 50 between the electric explosion node forming assembly 20 and the wire guide drive assembly 30, and / or, fixed below the wire guide drive assembly 30. The wire guide tube 70 is used to pass through the metal wire 101 to protect and limit the metal wire 101. When the wire guide tube 70 is located below the wire guide drive assembly 30, it can be fixed on the mounting plate 50 or fixed on the electrode assembly 40 below the wire guide drive assembly 30.

[0055] like Figure 6 As shown in the embodiment, this application also provides an electro-explosion method for preparing metal nanopowder, including the continuous wire guiding mechanism described in the above embodiment, and an electrode assembly 40 disposed below the wire guiding drive assembly 30. A wire spool 100 is suspended on the material holder 10. The wire 101 passes around the outer surface of the guide wheel 62 of the guide assembly 60, passes through the wire hole 26 of the electro-explosion node forming assembly 20, and is then clamped between the first wire guiding wheel 341 and the second wire guiding wheel 342 of the wire guiding drive assembly 30, continuing downwards into the electrode assembly 40 below. The first wire guiding wheel 341 and the second wire guiding wheel 342 rotate relative to each other, dragging the wire 101 continuously downwards. At the electro-explosion node forming assembly 20, the wire 101 forms protrusions and connects to the positive and negative electrodes in the electrode assembly 40, causing an electro-explosion to form metal nanoparticles.

[0056] The continuous wire guiding mechanism and electro-explosion metal nanopowder preparation equipment of this application embodiment can realize continuous wire guiding function, and the overall structure is simple with a simple metal wire movement path. Its electro-explosion node forming component can ensure efficient and stable forming of electro-explosion nodes. Its wire guiding drive component can meet the driving requirements of metal wires with different diameters, and the first wire guiding wheel can move relative to the second wire guiding wheel, making the adjustment of the first wire guiding wheel very convenient.

[0057] 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.

[0058] 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. A continuous wire guide mechanism, characterized in that, It includes a guide assembly, an electric explosion node forming assembly, and a guide wire drive assembly arranged in columns from top to bottom; The guide assembly is used to guide the wire on the wire spool toward the lower electro-explosive node forming assembly. The electric explosion node forming assembly has a through hole running from top to bottom. The through hole is used to thread the metal wire through. The electric explosion node forming assembly is used to form an electric explosion node by rotating the metal wire passing through the through hole to twist it. The wire guide drive assembly includes a first wire guide wheel and a second wire guide wheel. The metal wire passing through the wire hole is clamped between the first wire guide wheel and the second wire guide wheel. The first wire guide wheel and the second wire guide wheel are used to rotate relative to each other so that the metal wire moves downward.

2. The continuous wire guide mechanism as described in claim 1, characterized in that, It also includes a mounting plate, the guide assembly is located on the top of the mounting plate, the electric explosion node forming assembly is located in the middle of the mounting plate, and the wire guide drive assembly is located on the mounting plate below the electric explosion node forming assembly; a material support rack is provided on the top of the mounting plate on the side opposite to the wire guide drive assembly, and the material support rack is used to place the metal wire spool.

3. The continuous wire guide mechanism as described in claim 2, characterized in that, The guide assembly includes a fixed frame and guide wheels; the fixed frame is fixed to the top of the mounting plate; the guide wheels are mounted on the fixed frame via a rotating shaft and are used to rotate relative to the fixed frame; the diameter of the guide wheels gradually increases from the middle to both ends.

4. The continuous wire guide mechanism as described in claim 2, characterized in that, The electric explosion node forming assembly includes a rotating seat, fixed wheels, movable wheels, a top fixed seat, and a bottom fixed seat; The top fixing seat and the bottom fixing seat are fixedly mounted on the mounting plate at an interval between them; The two ends of the rotating seat are respectively connected to the top fixed seat and the bottom fixed seat, and the rotating seat is used to rotate infinitely relative to the top fixed seat and the bottom fixed seat with the central axis of the thread hole as the rotation axis; The fixed wheel and the movable wheel are respectively mounted on the rotating base, and the mounting points of the fixed wheel and the movable wheel are respectively located on both sides of the central axis; the rim of the fixed wheel is provided with a first groove, which is used to contact the metal wire; the rim of the movable wheel is provided with a second groove, and the movable wheel is used to move towards or away from the central axis so that the second groove contacts or separates from the metal wire.

5. The continuous wire guide mechanism as described in claim 4, characterized in that, The number of fixed wheels is one or two, 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.

6. The continuous wire guide mechanism as described in claim 2, characterized in that, The guide wire drive assembly also includes a fixing block, a linear motion device, and a drive block; The fixing block is fixed to the mounting plate; The linear motion device is inserted into the fixed block, and the driving end of the linear motion device is drivenly connected to the driving block; The first guide wheel is rotatably connected to the drive block, and the second guide wheel is rotatably connected to the mounting plate. The second guide wheel is the driving wheel, and the first guide wheel is the driven wheel. The wheel surface of the second guide wheel and the wheel surface of the first guide wheel are used to clamp the metal wire. The linear motion device is used to drive the drive block to move the first guide wheel toward the second guide wheel or away from the second guide wheel.

7. The continuous wire guide mechanism as described in claim 6, characterized in that, The linear motion device includes a lead screw, a nut, and an elastic element; the lead screw passes through the mounting hole of the fixed block, the nut is threadedly connected to the lead screw, one end of the elastic element is fixedly connected to the nut, and the other end is fixedly connected to the drive block. The elastic element is a hollow part so that the nut can move relative to the lead screw.

8. The continuous wire guide mechanism as described in claim 6, characterized in that, A first guide wheel and a second guide wheel are configured to form a guide wheel group. The number of guide wheel groups is not less than one group, and the guide wheel groups are arranged side by side, one above the other.

9. The continuous wire guide mechanism as described in claim 2, characterized in that, It also includes a guide wire tube, the number of which is one or more, the guide wire tube is used to be sleeved on the outside of the metal wire, the guide wire tube is fixed on the mounting plate between the guide assembly and the electric explosion node forming assembly, and / or, fixed on the mounting plate between the electric explosion node forming assembly and the guide wire drive assembly, and / or, fixed below the guide wire drive assembly.

10. An apparatus for preparing metal nanopowder by electro-explosion method, characterized in that, Includes the continuous guide wire mechanism as described in any one of claims 1 to 9.

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