Roller for electroplating small-specification neodymium iron boron magnetic steel

Abstract

The utility model belongs to the technical field of neodymium-iron-boron electroplating instruments, and particularly relates to a roller for electroplating small-specification neodymium-iron-boron magnetic steel, which comprises a plurality of charging barrels, a rotating disc and a support structure, each charging barrel is connected to one end face of the rotating disc, the charging barrels are arranged around the rotating disc in the circumferential direction in an array mode, through holes are formed in the circumferential side surface of each charging barrel, and the through holes are communicated with the rotating disc. A transmission shaft is coaxially and rotationally connected into each charging barrel, a plurality of stirring blades are fixed to the peripheral side surface of each transmission shaft, the rotating disc is vertically arranged and rotationally connected to the support structure, a driving part used for driving the rotating disc to rotate is arranged on the support structure, and the support structure is connected with a fixed disc which is coaxial with the rotating disc and horizontally spaced from the rotating disc; a gear ring facing the rotating disc is coaxially fixed on the surface of the fixed disc, one end of each transmission shaft penetrates through the rotating disc and is connected with a transmission gear meshed with the gear ring, and by the adoption of the technical scheme, the problems that the electroplating effect is not uniform and needs to be improved in the electroplating process of the neodymium-iron-boron magnet can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of neodymium iron boron electroplating equipment, specifically relating to a small-sized neodymium iron boron magnet electroplating roller. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are currently the most powerful permanent magnet materials, but their chemical reactivity makes them highly susceptible to corrosion. Therefore, surface treatment techniques such as electroplating are essential for protection. Electroplating isolates the surface of NdFeB magnets from air and moisture, preventing oxidation and corrosion. The plating layer also enhances surface hardness, reducing mechanical damage during transportation, assembly, and use. Furthermore, it seals micropores and defects on the magnet surface, preventing the penetration of corrosive media and thus maintaining the magnet's energy product (BHmax) and coercivity. Therefore, most mainstream NdFeB magnets require electroplating before use, and this process typically involves ultrasonic cleaning to improve the stability and uniformity of the subsequent electroplating process.

[0003] For example, a Chinese patent discloses a neodymium iron boron electroplating fixture and continuous transfer device (patent publication number: CN217399013U), which includes an electroplating drum and a support frame for supporting the electroplating drum. A rotating shaft is provided on the axis of the electroplating drum, which passes through the electroplating drum and extends out on both sides. The electroplating drum is rotatably engaged with the support frame through bearings. A water wheel is provided on the rotating shaft on the outside of the electroplating drum to drive the electroplating drum to rotate relative to the support frame. The water wheel corresponds to the outlet of the circulating liquid outlet pipe in the electroplating tank. By setting the rotating electroplating drum, the neodymium iron boron can be fully contacted with the electrolyte during the electroplating process.

[0004] While the above technical solutions can effectively solve the problem of uniform contact of NdFeB magnets during electroplating, in actual electroplating, simply rotating the electroplating drum to tumble the NdFeB magnets and plating balls inside to improve electroplating uniformity has limited effect. This is because a single rotation direction only improves the electroplating effect of the NdFeB magnets on the outer side and cannot evenly disturb all the NdFeB magnets inside the electroplating drum. As a result, some of the NdFeB magnets piled up inside cannot make uniform contact with the electroplating solution, leading to uneven electroplating of all the NdFeB magnets. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a small-sized neodymium iron boron magnet electroplating roller to solve the problem that the electroplating effect of neodymium iron boron magnets is uneven and needs to be improved.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A small-sized neodymium iron boron magnet electroplating roller includes multiple loading cylinders, a rotating disk that drives each loading cylinder to rotate, and a support structure that supports the movement of the rotating disk. Each loading cylinder is vertically and detachably connected to one end face of the rotating disk. The loading cylinders are arranged in a circumferential array around the rotating disk. Each loading cylinder has a through hole on its circumferential surface, and a drive shaft is coaxially rotatably connected inside each loading cylinder. Multiple stirring blades are vertically fixed on the circumferential surface of the drive shaft. The rotating disk is vertically placed and rotatably connected to the support structure. The support structure is provided with a drive component for driving the rotating disk to rotate. The support structure is connected to a fixed disk that is coaxial with the rotating disk and horizontally spaced. A gear ring facing the rotating disk is coaxially fixed on the surface of the fixed disk. One end of each drive shaft passes through the rotating disk and is connected to a drive gear that meshes with the gear ring.

[0008] Furthermore, all stirring blades in the same plane are evenly spaced along the length of the drive shaft, and the distance between the end of each stirring blade away from the drive shaft and the inner wall of the loading cylinder is different.

[0009] Furthermore, the inner wall of the loading cylinder is vertically provided with a plurality of blocking blocks arranged in an array around its axis, and the blocking blocks are also arranged in an array along the length direction of the drive shaft, wherein each of the blocking blocks is disposed between two adjacent stirring blades.

[0010] Furthermore, the surface of the rotating disk is provided with a plurality of fixing grooves corresponding one-to-one with the loading cylinders, and a sealing cover can be detachably connected to the opening of each loading cylinder, and the sealing cover is detachably connected to the fixing groove.

[0011] Furthermore, the vertical cross-section of each of the loading cylinders in the radial direction is a polygonal structure.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention features a drive component on a support structure for rotating a rotating disk, along with a fixed disk and a gear ring. When the drive component rotates the rotating disk, a loading cylinder detachably connected to the rotating disk rotates along with it. Simultaneously, the drive shaft inside the loading cylinder rotates through the meshing of a driven gear and the gear ring. The stirring blades on the drive shaft effectively stir the neodymium iron boron magnets inside the loading cylinder. Combined with the blocking block and the polygonal structure of the loading cylinder, the stirring effect on the neodymium iron boron magnets is effectively enhanced, improving the uniformity of electroplating.

[0014] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Figure 1 This is a schematic diagram of the working state of the support structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the support structure and the rotating disk of this utility model;

[0018] Figure 3 This is a side view of the bracket structure and rotating disk of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the loading cylinder of this utility model;

[0020] Figure 5 for Figure 2 Enlarged diagram of point A in the middle.

[0021] The following labels are shown in the attached diagram:

[0022] 1. Loading cylinder, 2. Rotating disc, 3. Support structure, 301. Support shell, 302. Crossbar, 303. Connecting block, 4. Drive shaft, 5. Stirring blade, 6. Chain, 7. Sprocket, 8. Fixed disc, 9. Drive gear, 10. Blocking block, 11. Fixed groove, 12. Sealing cover, 13. Transmission component, 14. Rotating shaft, 15. Gear ring. Detailed Implementation

[0023] like Figures 1-5 As shown,

[0024] A small-sized neodymium iron boron (NdFeB) magnet electroplating roller includes multiple loading cylinders 1 for holding NdFeB magnets, a rotating disk 2 for rotating each loading cylinder 1, and a support structure 3 for supporting the rotation of the rotating disk 2. The support structure 3 includes a support housing 301, a crossbar 302 disposed on the upper surface of the support housing 301, and a connecting block 303 fixedly disposed on the lower surface of the support housing 301. The crossbar 302 is horizontally arranged along the length of the support housing 301, and the connecting block 303 is vertically arranged. Each loading cylinder 1 is vertically and detachably connected to one end face of the rotating disk 2. The loading cylinders 1 are arranged in a circumferential array around the rotating disk 2. Each loading cylinder 1 has a through hole on its circumferential surface for the electroplating solution to pass through, and a drive shaft 4 is coaxially rotatably connected inside each loading cylinder 1. Multiple stirring blades 5 are vertically fixed on the circumferential surface of the drive shaft 4. The rotating disk 2 is vertically positioned and rotatably disposed on one side surface of the connecting block 303. The support housing 301... The surface of the drive unit is fixed with a drive component for rotating the rotating disk 2. The drive component includes a motor, a rotating shaft 14 rotatably mounted on the connecting block 303, a sprocket 7 sleeved and fixed on the outer surface of the rotating shaft 14, and a chain 6 disposed between the output end of the motor and the sprocket 7. The motor is fixed to the bracket structure 3 by bolts (the motor is not shown in the figure). One end of the rotating shaft 14 passes through the connecting block 303 and is coaxially fixedly connected to the rotating disk 2. The rotating disk 2 and the connecting block 303 are spaced apart. The outer surface of the connecting block 303 is fixedly connected to a fixed disk 8 by bolts. The fixed disk 8 is disposed between the connecting block 303 and the rotating disk 2. The surface of the fixed disk 8 has a through hole for the rotating shaft 14 to pass through. The fixed disk 8 is coaxially arranged with the rotating shaft 14 and the rotating disk 2. One end of the fixed disk 8 is coaxially fixed with a gear ring 15 facing the rotating disk 2. One end of each of the drive shafts 4 passes through the rotating disk 2 and is connected to a drive gear 9 that meshes with the gear ring 15.

[0025] To improve the efficiency of NdFeB electroplating, each support structure 3 is equipped with four rotating disks 2, four fixed disks 8 and other components (the specific arrangement and transmission connection structure are common knowledge to those skilled in the art and will not be described in detail here), which can effectively increase the number of NdFeB magnets electroplated each time.

[0026] As shown in the diagram, when electroplating neodymium iron boron magnets, the corresponding neodymium iron boron magnets are first placed into each loading cylinder 1, and the loading cylinder 1 is fixed to the surface of the corresponding rotating disk 2. Then, the support structure 3 is moved into the electroplating tank by a hoisting device. During the electroplating process, the motor is started, and the motor drives the rotating shaft 14 to rotate through the sprocket 7 and chain 6. The rotating shaft 14 then drives the rotating disk 2 to rotate, and the rotating disk 2 drives each loading cylinder 1 fixed on its surface to rotate synchronously. During the rotation, the liquid in the electroplating tank will pass through the through holes on the outer surface of the loading cylinder 1. The particles enter the interior and adhere to the surface of the NdFeB magnets. Since one end of each drive shaft 4 extends out of the rotating disk 2 and is connected to a drive gear 9, and the drive gear 9 meshes with the gear ring 15, when each loading cylinder 1 rotates with the rotating disk 2, the drive shaft 4 inside it simultaneously drives the stirring blade 5 to rotate, and disturbs the NdFeB magnets inside the loading cylinder 1. This effectively prevents some NdFeB magnets from accumulating in the same position, thereby effectively reducing the dead angle of the NdFeB magnets during electroplating and improving the uniformity of each NdFeB magnet during the electroplating process.

[0027] In this embodiment, all stirring blades 5 in the same vertical plane are evenly spaced along the length of the drive shaft 4, and the distance between the end of each stirring blade 5 away from the drive shaft 4 and the inner wall of the loading cylinder 1 is different.

[0028] As shown in the figure, by evenly spaced multiple stirring blades 5 along the length of the transmission shaft 4, the working range of all stirring blades 5 can be effectively increased during rotation, reducing dead angles of the stirring blades 5. At the same time, by setting stirring blades 5 of different lengths, the longer stirring blades 5 can reach the area near the inner wall of the loading cylinder 1, while the shorter stirring blades 5 are concentrated in the central area, ensuring all-round stirring of the NdFeB magnet from the center to the edge, avoiding dead angles of local unmixed areas, thereby reducing mixing dead angles and improving the uniformity of NdFeB magnet electroplating.

[0029] In this embodiment, the inner wall of the loading cylinder 1 is vertically provided with a plurality of blocking blocks 10 arranged around its axis, and the blocking blocks 10 are also arranged along the length direction of the drive shaft 4, wherein each of the blocking blocks 10 is disposed between two adjacent stirring blades 5.

[0030] As shown in the figure, when the drive shaft 4 drives each stirring blade 5 to rotate, the blocking block 10 can disrupt the regular annular flow of the NdFeB magnets formed by the rotation of the stirring blades 5, enhance the multi-angle collisions between each NdFeB magnet, further break up the partial agglomeration of the NdFeB magnets, and enable each NdFeB magnet to contact the electroplating solution evenly, thereby improving the uniformity of electroplating.

[0031] In this embodiment, the surface of the rotating disk 2 is provided with a plurality of fixing grooves 11 corresponding one-to-one with the loading cylinders 1. Each opening of the loading cylinder 1 is detachably connected to a sealing cover 12, and the sealing cover 12 is detachably connected to the fixing groove 11 (the detachable connection can adopt existing known connection methods such as threaded connection and snap-fit ​​connection, which are common knowledge to those skilled in the art and will not be elaborated here); wherein, each fixing groove 11 is coaxially provided with a transmission component 13, the transmission component 13 has a cylindrical structure, the transmission component 13 is rotatably disposed on the surface of the fixing disk 8, and the transmission component 13 is poweredly connected to one end of the transmission shaft 4 by means of keyway engagement. The end of the transmission component 13 away from the transmission shaft 4 is coaxially sleeved and fixed with the transmission gear 9 that meshes with the gear ring 15. The transmission shaft 4 is coaxially rotatably connected to the sealing cover 12, and one end of the transmission shaft 4 is rotatably connected to the inner wall of the loading cylinder 1.

[0032] As shown in the figure, the transmission component 13 and one end of the transmission shaft 4 are connected by a keyway, which not only facilitates disassembly but also enables power transmission. When the loading cylinder 1 needs to be installed in the corresponding fixed groove 11, the end of the transmission shaft 4 extending out of the sealing cover 12 is inserted into the transmission component 13 and engaged with it. At this time, the motor output end can indirectly drive the rotating shaft 4 to rotate through the cooperation of components such as the sprocket 7, chain 6, gear ring 15, transmission gear 9, and transmission component 13. In addition, the design of the sealing cover 12 effectively ensures the stability of the movement of the transmission shaft 4 when the loading cylinder 1 is fixed on the surface of the rotating disk 2, and can stably stir the neodymium iron boron magnet inside.

[0033] In this embodiment, the vertical cross-section of each of the loading cylinders 1 in the radial direction is a regular hexagonal structure.

[0034] When the neodymium iron boron magnet moves with the stirring blade 5 and impacts the hexagonal plane inside the loading cylinder 1, the rebound direction varies depending on the incident angle. Compared with the tangential rebound of the cylindrical cylinder, the hexagonal structure is more likely to cause the magnet to flip, ensuring that each surface alternately faces the outer electroplating liquid. Combined with the blocking block 10, it can effectively improve the uniformity of electroplating each neodymium iron boron magnet.

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A small-sized neodymium iron boron magnet electroplating roller, comprising multiple loading cylinders (1), a rotating disk (2) that drives each loading cylinder (1) to rotate, and a support structure (3) that supports the movement of the rotating disk (2), characterized in that: Each said charging barrel (1) is vertically and detachably connected at one end face of a rotating disc (2), each charging barrel (1) is arranged in a circumferential array around the rotating disc (2), a through hole is formed in the peripheral surface of each said charging barrel (1), and a transmission shaft (4) is coaxially and rotatably connected in each charging barrel (1), a plurality of stirring blades (5) are fixed perpendicularly on the peripheral surface of the transmission shaft (4), the rotating disc (2) is vertically and rotatably connected on a support structure (3), a driving member for driving the rotating disc (2) to rotate is arranged on the support structure (3), the support structure (3) is connected with a fixed disc (8) which is coaxial with the rotating disc (2) and is horizontally spaced, a gear ring (15) which faces the rotating disc (2) is fixed coaxially on the surface of the fixed disc (8), and one end of each said transmission shaft (4) penetrates the rotating disc (2) and is connected with a transmission gear (9) which meshes with the gear ring (15).

2. A small-size Nd-Fe-B magnetic steel electroplating roller according to claim 1, characterized in that: All the stirring blades (5) in the same plane are uniformly spaced along the length direction of the transmission shaft (4), and the distance between each stirring blade (5) away from the transmission shaft (4) and the inner wall of the charging barrel (1) is not the same.

3. A small-size Nd-Fe-B magnetic steel electroplating roller according to claim 2, characterized in that: A plurality of blocking blocks (10) which are arranged in an array around the axis of the charging barrel (1) are vertically arranged on the peripheral inner wall of the charging barrel (1), and the blocking blocks (10) are also arranged in an array along the length direction of the transmission shaft (4), wherein each said blocking block (10) is arranged between two adjacent stirring blades (5).

4. The small-size Nd-Fe-B magnetic steel electroplating roller according to claim 3, characterized in that: A plurality of fixed grooves (11) which correspond one-to-one with the charging barrels (1) are arranged on the surface of the rotating disc (2), a sealing cover (12) is detachably connected at the opening of each said charging barrel (1), and the sealing cover (12) is detachably connected with the fixed groove (11).

5. The small-size Nd-Fe-B magnetic steel electroplating roller according to claim 1, characterized in that: The vertical cross section in the radial direction of each said charging barrel (1) is a polygonal structure.

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