Screening device for neodymium-iron-boron magnet machining
By designing a horizontal vibrating screen and a static collection box, the defects caused by collisions during the screening process of semi-finished magnets in the existing technology are solved, achieving non-destructive screening and improving the processing quality of NdFeB magnets.
Patent Information
- Application Number
- CN202520999147.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-21
AI Technical Summary
In the existing technology, when the chamfered abrasive and magnet semi-finished products are screened by up-and-down vibration, it is easy for the magnet semi-finished products to collide with each other, resulting in defects such as sharp corners and cracks.
The design employs a horizontally vibrating screen and a stationary collection box. Screening is achieved by manually sliding the screen mounting plate, preventing the magnetic semi-finished products from vibrating. The screen gap is adjusted using springs and a scissor-type telescopic frame. Enclosures and adjusting screws are provided for easy operation.
This effectively avoids the occurrence of corner breakage and cracks in semi-finished magnets during the screening process, thus improving screening efficiency and product quality.
Smart Images

Figure CN223946198U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to neodymium iron boron screening technical field, more particularly to a kind of screening device for neodymium iron boron magnet processing. BACKGROUND
[0002] Screening neodymium iron boron magnet after chamfering abrasive and magnet semi-finished product is an important step in the processing of neodymium iron boron magnet.
[0003] Prior art such as the patent with the announcement number CN210995158U discloses a kind of neodymium iron boron separator, control switch is controlled to control vibration motor work to promote steel ball and neodymium iron boron in the separator from left to right movement, to realize the separation of steel ball and neodymium iron boron on screening net. However, the above-mentioned technology adopts the way of up and down vibration to screen, if used to screen chamfering abrasive and magnet semi-finished product, magnet semi-finished product after leaking from screen will collide, so defects such as chamfer and crack will occur.
[0004] Therefore, a kind of screening device for neodymium iron boron magnet processing is needed to solve the above problems. UTILITY MODEL CONTENT
[0005] Therefore, the utility model provides a kind of screening device for neodymium iron boron magnet processing to solve the problem that magnet semi-finished product after leaking from screen will collide and defects will occur when chamfering abrasive and magnet semi-finished product are screened by the way of up and down vibration in prior art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] The utility model provides a kind of screening device for neodymium iron boron magnet processing, including workbench, collecting box and screen mounting plate are slidably installed on the workbench, the screen mounting plate is located above collecting box, screen is fixedly arranged on the screen mounting plate, collecting box is slidably connected with workbench table top, guide rod is fixedly arranged on the opposite sides of workbench on table top, support block fixedly arranged on workbench is fixedly connected to the both ends of guide rod, sliding block is fixedly arranged on the screen mounting plate and is sleeved on guide rod.
[0008] Further, spring is fixedly connected between support block and adjacent sliding block, and the spring is sleeved on guide rod.
[0009] Further, the screen comprises a plurality of screen frames arranged side by side along the guide rod axis, the neodymium-iron-boron magnet can slide off from the gap between two adjacent screen frames, the end of the screen frame is slidably connected with the screen mounting plate, the screen mounting plate is provided with a scissor type telescopic frame on the opposite two side walls, and the end of the screen frame is rotatably connected with the center hinge point of the scissor type telescopic frame, so that the plurality of screen frames can slide at equal intervals.
[0010] Further, the screen mounting plate is fixedly provided with a fence, and the fence surrounds the screening area.
[0011] Further, the screen mounting plate is provided with an adjusting area on one side of the screening area, the adjusting area is provided with a cover plate fixedly integrated with the screen mounting plate, a push plate is slidably connected with one side of the cover plate, the push plate is fixedly connected with the screen frame away from the screening area among the plurality of screen frames, and an adjusting screw rod is rotatably connected with the side of the push plate away from the screen frame, and the adjusting screw rod is threadedly connected with the screen mounting plate.
[0012] Further, the screen mounting plate is fixedly connected with a handle on the opposite two side walls along the guide rod axis.
[0013] Further, the workbench is fixedly connected with a guide rail, and the collecting box is slidably connected with the guide rail.
[0014] Further, the collecting box is provided with a collecting net, and the collecting net is fixedly provided with a bent portion capable of being hung on the top wall of the collecting box, so that the collecting net is hung on the collecting box, and a gap is formed between the bottom wall of the collecting net and the bottom wall of the collecting box.
[0015] Further, the collecting box is provided with a liquid, and the mesh surface of the collecting net is below the liquid surface.
[0016] Further, the screen mounting plate is arranged obliquely, the workbench is fixedly provided with an abrasive collecting box on the bottom side of the screen mounting plate along the oblique direction, and the fence is provided with a gap for abrasive passing near the abrasive collecting box.
[0017] The beneficial effects of the present application are as follows:
[0018] The neodymium-iron-boron magnet semi-finished product that falls in cannot follow the vibration of the screen, so that defects such as tight angle and crack are avoided.
[0019] Other advantages, objects and features of the present application will be described in the following description, and are obvious to those skilled in the art to some extent, or can be taught by those skilled in the art from the practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to make the purpose, technical scheme and beneficial effects of the utility model clearer, the utility model provides the following drawings for description:
[0021] Fig. 1 It is whole structure schematic view of the utility model embodiment;
[0022] Fig. 2 It is the sieve screen mounting plate elevational sectional view of the utility model embodiment;
[0023] Fig. 3 It is the sieve screen mounting plate plan view of the utility model embodiment;
[0024] Fig. 4 It is the collection box structure sectional view of the utility model embodiment.
[0025] The marks in the drawings are as follows: workbench 1, guide rail 101, collection box 2, collection net 201, bending part 202, sieve screen mounting plate 3, sieve screen 301, sieve screen frame 302, fence 303, screening area 304, adjusting area 305, cover plate 306, push plate 307, adjusting screw 308, handle 309, guide rod 4, support block 401, sliding block 402, spring 5, abrasive collection box 6, notch 601. DETAILED DESCRIPTION
[0026] As Figs. 1-4 Indicated, the utility model provides a kind of screening device for neodymium iron boron magnet processing, comprising: workbench 1, the collection box 2 and the sieve screen mounting plate 3 located above collection box 2 are slidably installed on the workbench 1, the sieve screen 301 is fixedly arranged on the sieve screen mounting plate 3, the collection box 2 is slidably connected with the workbench 1 table top, the guide rod 4 is fixedly arranged on the opposite sides of the workbench 1 on table top, the support block 401 fixedly connected with the guide rod 4 two ends is fixedly arranged on the workbench 1, the sliding block 402 slidably sleeved on the guide rod 4 is fixedly arranged on the sieve screen mounting plate 3.
[0027] In the present scheme, after the mixture of abrasive and neodymium iron boron magnet is poured on the sieve screen 301, reciprocating sliding sieve screen mounting plate 3 by hand is realized, the horizontal shaking of sieve screen mounting plate 3 is realized, so that neodymium iron boron magnet semi-finished product can fall from sieve screen 301 to collection box 2, when needing to take out neodymium iron boron magnet, collection box 2 is slid out to make collection box 2 and sieve screen mounting plate 3 dislocation, so as to take out neodymium iron boron magnet semi-finished product.
[0028] The present scheme is vibrated horizontally by sieve screen 301, and collection box 2 is stationary, and the dropped neodymium iron boron magnet semi-finished product will not follow sieve screen 301 vibration, to avoid the appearance of defects such as kink and crack.
[0029] In an embodiment of the utility model, spring 5 is fixedly connected between support block 401 and adjacent sliding block 402, spring 5 is sleeved on guide rod 4.
[0030] In the scheme, the artificial sliding screen installation plate 3 is more labor-saving by setting spring 5.
[0031] In an embodiment of the utility model, the screen 301 includes a plurality of screen frames 302 arranged axially and side by side along the guide rod 4, the neodymium iron boron magnet semi-finished product can slide off from the gap between the adjacent two screen frames 302, the end of the screen frame 302 is slidingly connected with the screen installation plate 3, the screen installation plate 3 is provided with a scissor type telescopic frame (not shown in the figure) on the opposite two side walls, and the end of the screen frame 302 is rotatably connected to the center hinge point of the scissor type telescopic frame to enable the plurality of screen frames 302 to slide at equal intervals.
[0032] In the scheme, the structure of the scissor type telescopic frame belongs to the conventional technical means in the field, which will not be described here, and the plurality of screen frames 302 are installed at the center hinge point of the scissor type telescopic frame at equal intervals, so that moving one of the screen frames 302 can drive the plurality of screen frames 302 to move at equal intervals synchronously, thereby adjusting the screening gap and realizing the screening of neodymium iron boron magnet semi-finished products of different sizes.
[0033] In an embodiment of the utility model, the screen installation plate 3 is fixedly provided with a fence 303, and the fence 303 surrounds to form a screening area 304.
[0034] In the scheme, the fence 303 is arranged to prevent the material from sliding off the screen installation plate 3 during the horizontal movement of the screen installation plate 3.
[0035] In an embodiment of the utility model, the screen installation plate 3 is provided with an adjusting area 305 on one side of the screening area 304, the adjusting area 305 is provided with a cover plate 306 fixedly integrated with the screen installation plate 3, a push plate 307 is slidingly connected to one side of the cover plate 306, the push plate 307 is fixedly connected with the screen frame 302 away from the screening area 304 in the plurality of screen frames 302, an adjusting screw 308 is rotatably connected to the side of the push plate 307 away from the screen frame 302, and the adjusting screw 308 is threadedly connected with the screen installation plate 3.
[0036] In the scheme, the rotating adjusting screw rod 308 is used to slide the push plate 307 to push the plurality of screen racks 302 to move at intervals, so as to save manpower and ensure the stability of the plurality of screen racks 302 after moving to the preset position; and the screening area 304 and the adjusting area 305 are arranged to provide space for the screen rack 302 outside the screening area 304, so that the cover plate 306 plays a protective role on the screen rack 302 outside the screening area 304.
[0037] In an embodiment of the present application, the screen mounting plate 3 is fixedly connected with a handle 309 on the opposite two side walls along the axis direction of the guide rod 4.
[0038] In an embodiment of the present application, the workbench 1 is fixedly connected with a guide rail 101, and the collecting box 2 is slidingly connected to the guide rail 101.
[0039] In an embodiment of the present application, the collecting box 2 is provided with a collecting net 201, and the collecting net 201 is fixedly provided with a bent portion 202 capable of being hung on the top wall of the collecting box 2.
[0040] In the scheme, the collecting net 201 is arranged to buffer the neodymium iron boron magnet semi-finished product falling on the collecting net 201, and when the neodymium iron boron magnet semi-finished product is taken out, the collecting net 201 is taken out as a whole, and then the collecting net 201 is replaced.
[0041] In an embodiment of the present application, the collecting box 2 is filled with liquid, and the surface of the collecting net 201 is below the liquid level.
[0042] In the scheme, the liquid is water, and the liquid plays a buffering role on the neodymium iron boron magnet semi-finished product, wherein the depth of the collecting box 2 is selected according to actual conditions, and the deeper the depth of the collecting box 2, the better the buffering effect.
[0043] In an embodiment of the present application, the screen mounting plate 3 is arranged to be inclined, and the workbench 1 is fixedly provided with an abrasive collecting box 6 on the bottom side of the screen mounting plate 3 in the inclined direction, and the fence 303 is provided with a gap 601 for abrasive passing on the side close to the abrasive collecting box 6.
[0044] In the scheme, during the movement of the screen mounting plate 3, the abrasive slides in the inclined direction and falls into the abrasive collecting box 6 through the gap 601, so as to collect the abrasive and the neodymium iron boron magnet semi-finished product respectively.
[0045] Finally, it is explained that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.
Claims
1. A sifting device for neodymium-iron-boron magnet processing, comprising a worktable, characterized in that: The workbench is provided with a collecting box and a screen mounting plate, the screen mounting plate is located above the collecting box, the screen mounting plate is fixedly provided with a screen, the collecting box is in sliding connection with the workbench top, opposite sides of the workbench on the top are fixedly provided with guide rods, the guide rods are fixedly connected with support blocks which are fixedly arranged on the workbench, the screen mounting plate is fixedly provided with sliding blocks which are sleeved on the guide rods.
2. The sintering apparatus for neodymium-iron-boron magnets according to claim 1, characterized in that: The support blocks are fixedly connected with the adjacent sliding blocks and are sleeved on the guide rods.
3. The sintering apparatus for neodymium-iron-boron magnets according to claim 2, characterized in that: The screen comprises a plurality of screen frames which are arranged in parallel along the guide rods, a neodymium-iron-boron magnet can slide off from the gap between two adjacent screen frames, the end of the screen frame is in sliding connection with the screen mounting plate, the opposite sidewalls of the screen mounting plate are provided with scissor-type telescopic frames, the end of the screen frame is rotatably connected to the center hinge point of the scissor-type telescopic frame so that the plurality of screen frames can slide at equal intervals.
4. The sintering apparatus for neodymium-iron-boron magnets according to claim 3, characterized in that: The screen mounting plate is fixedly provided with an enclosure which forms a screening area.
5. The sintering apparatus for neodymium-iron-boron magnets according to claim 4, characterized in that: The screen mounting plate is provided with an adjusting area on one side of the screening area, the adjusting area is provided with a cover plate which is fixedly integrated with the screen mounting plate, one side of the cover plate is in sliding connection with a push plate, the push plate is fixedly connected with a screen frame which is away from the screening area among the plurality of screen frames, the push plate is rotatably connected with an adjusting screw rod on the side away from the screen frame, and the adjusting screw rod is in threaded connection with the screen mounting plate.
6. The sintering apparatus for neodymium-iron-boron magnets according to claim 5, characterized in that: The screen mounting plate is fixedly connected with a handle on the opposite sidewalls along the guide rod axis direction.
7. The sintering apparatus for neodymium-iron-boron magnets according to claim 6, characterized in that: The workbench is fixedly connected with a guide rail, and the collecting box is in sliding connection with the guide rail.
8. The sintering apparatus for neodymium-iron-boron magnets according to claim 7, characterized in that: The collecting box is placed with a collecting net, the collecting net is fixedly provided with a bent portion which can be hung on the top wall of the collecting box, and the bent portion is hung on the collecting box so that a gap is formed between the bottom wall of the collecting net and the bottom wall of the collecting box.
9. The sintering apparatus for neodymium-iron-boron magnets according to claim 8, characterized in that: The collecting box is filled with liquid, and the mesh surface of the collecting net is below the liquid level.
10. The sintering apparatus for neodymium-iron-boron magnets according to claim 9, characterized in that: The screen mounting plate is arranged obliquely, the workbench is fixedly provided with an abrasive collecting box on the bottom side of the screen mounting plate along the oblique direction, and the enclosure is provided with a gap for abrasive passing on the side close to the abrasive collecting box.
Citation Information
Patent Citations
Neodymium iron boron sorting machine
CN210995158U