Grinding equipment for magnetic material production

Abstract

The invention relates to the technical field of grinding equipment, in particular to grinding equipment for magnetic material production. Comprising a grinding tank, two connecting frames are symmetrically installed on the upper end face of the grinding tank, and a feeding opening is fixedly formed in one side of the outer wall of the grinding tank; and the crushing assembly comprises a rotating column arranged in the grinding tank, a storage box is arranged above the grinding tank, and a crushing gap is formed between the rotating column and the inner wall of the grinding tank. By means of the fan-ring-shaped auxiliary discharging workpiece driven to ascend and descend, in the process that a grinding roller grinds a magnetic material, a wet-type dispersing agent flows out from a liquid outlet hole in a liquid injection cavity formed in the fan-ring-shaped auxiliary discharging workpiece to be mixed with the magnetic material, the magnetic material is prevented from being agglomerated together during regrinding, and meanwhile, the magnetic material is prevented from being agglomerated. When the sector-ring-shaped auxiliary discharging workpiece descends, the gap between the sector-ring-shaped auxiliary discharging workpiece and the grinding roller can be reduced, and the magnetic materials are ground again in cooperation with the spiral convex teeth.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and in particular to a grinding equipment used for producing magnetic materials. Background Art

[0002] Magnetic materials are materials that can be affected by a magnetic field or have magnetism.

[0003] In the process of manufacturing magnetic storage devices such as hard disk drives and magnetic tape storage, magnetic materials with very small and uniform particle sizes are required. This is because in high-density storage devices, the size control of magnetic particles is crucial to the density of stored information. Smaller particles can provide higher storage density, so precise grinding and particle size control of magnetic materials are necessary; Existing equipment usually adds dispersants once before grinding the magnetic material, which makes it difficult to dynamically adapt to the dynamic changes on the surface of the magnetic material particles during the grinding process, resulting in uneven distribution of the dispersant and inability to effectively suppress agglomeration in subsequent grinding. In addition, existing equipment often separates the crushing and grinding processes, resulting in poor equipment integration, high energy consumption and lengthy processes. For example, the coarsely crushed magnetic material needs to be transferred to an independent grinding unit, which can easily introduce contamination and cause secondary agglomeration of the magnetic material particles during the process. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a grinding device for magnetic material production, which can effectively solve the problem of magnetic material agglomeration that the prior art fails to effectively solve during the grinding process.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a grinding device for producing magnetic materials, comprising: A grinding jar, wherein two connecting frames are symmetrically mounted on the upper end surface of the grinding jar, and a feed port is fixedly mounted on one side of the outer wall of the grinding jar; A pulverizing assembly, the pulverizing assembly comprising a rotating column arranged in a grinding jar, a storage box arranged above the grinding jar, a crushing gap formed between the rotating column and the inner wall of the grinding jar, a plurality of crushing columns for crushing magnetic materials arranged in a circumferential array on the outer wall of the rotating column, and the storage box intermittently discharges a dry dispersant to mix with the magnetic material during the crushing of the magnetic material by the crushing columns; A grinding assembly, wherein the grinding assembly includes a grinding roller arranged in a grinding tank and below a rotating column, wherein a spiral convex tooth is fixedly mounted on the upper end surface of the grinding roller, and a fan-shaped auxiliary unloading workpiece driven to rise and fall is arranged above the grinding roller. The fan-shaped auxiliary unloading workpiece discharges a wet dispersant mixed with a magnetic material during the process of being driven to rise, and cooperates with the grinding roller to further crush and grind the magnetic material during the process of being driven to descend.

[0006] Preferably, a rotating drive member is fixedly installed on the upper end surface of the grinding jar, and the output end of the rotating drive member passes through the grinding jar and is fixedly installed with a main shaft, the main shaft is rotatably connected to the top end of the grinding jar, the lower end of the main shaft passes through the grinding jar and extends to the bottom thereof, the outer wall of the main shaft is fixedly connected to the rotating column, the outer wall of the rotating column is provided with a card groove in a circumferential array, the inner top end of the card groove is provided with a notch, and a plurality of blocks are fixedly installed with a circumferential array on the lower end surface of the rotating column, the upper and lower ends of the crushing column are rotatably installed with joints, one side of the joint is fixedly installed with a sliding rod, one of the sliding rods is slidably connected to the inner wall of the notch, and the other sliding rod is slidably connected to the inside of the block, a first spring is fixedly installed between each of the joints and the notch and the block, and a baffle is fixedly installed on the upper end surface of the joint.

[0007] Preferably, a base is fixedly installed on the upper end surface of the grinding jar, and the upper end surface of the base is fixedly connected to a storage box, the storage box is filled with dry dispersant, and a plurality of first discharge holes are opened at the inner bottom end of the storage box and at positions corresponding to the feed port, a card frame is fixedly installed on the lower end surface of the storage box and at positions corresponding to the first discharge holes, a sealing plate is slidably installed on the inner wall of the card frame, an L-shaped linkage plate is fixedly installed on one side of the sealing plate, a fixing plate is fixedly installed on the upper end surface of the grinding jar and below the base, a second spring is fixedly installed between the fixing plate and the L-shaped linkage plate, and a triangular block is fixedly installed on the inner wall of the storage box.

[0008] Preferably, a sleeve is fixedly installed on the outer wall of the main shaft and below the rotating column, the sleeve is rotatably connected to the grinding roller, a lower ring is fixedly installed on the outer wall of the sleeve, a plurality of lower chucks are fixedly installed on the upper end surface of the lower ring in a circumferential array, an injection cavity is opened in the fan-shaped auxiliary blanking workpiece, liquid outlet holes are evenly opened at the inner bottom end of the injection cavity, a plurality of vertical rods are fixedly installed on the upper end surface of the fan-shaped auxiliary blanking workpiece in a circumferential array, an upper ring is fixedly installed on the upper ends of the vertical rods, a plurality of upper chucks are fixedly installed on the lower end surface of the upper ring in a circumferential array, and the upper chucks are slidably connected to the lower chucks.

[0009] Preferably, a blanking plate is fixedly installed on the inner wall of the grinding jar and below the grinding roller, and a plurality of second blanking holes are opened on the inner wall of the blanking plate. The blanking plate is rotatably connected to the main shaft, and a grinding gap is formed between the grinding roller, the inner wall of the grinding jar, and the upper end surface of the blanking plate.

[0010] Preferably, the outer wall of the main shaft is fixedly installed with stirring teeth inside the grinding jar, the outer wall of the main shaft is opened with a reciprocating thread groove below the grinding jar, the outer wall of the reciprocating thread groove is provided with a ring, the inner surface of the ring is connected with a ball at a fixed point, and the ball is limited to roll in the reciprocating thread groove, a plurality of linkage rods are fixedly installed with a circular array on the outer wall of the ring, an external box is fixedly installed with the upper end of the linkage rod, the external box passes through the grinding jar and is connected with a fan-shaped auxiliary unloading workpiece, the external box is slidably connected to the grinding jar, a plurality of baffles are embedded with a circular array on the outer wall of the fan-shaped auxiliary unloading workpiece, and a first one-way valve is embedded in the baffle.

[0011] Preferably, an annular liquid storage tube is fixedly installed on the outer wall of the grinding jar and above the external box, the annular liquid storage tube is filled with wet dispersant, the circular array below the annular liquid storage tube is connected to a liquid outlet box, the top of the external box is connected to a telescopic box, the telescopic box passes through the liquid outlet box and is limitedly slidably connected thereto, and a second one-way valve is embedded on the upper end surface of the telescopic box.

[0012] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: First, by means of the fan-shaped auxiliary unloading workpiece that is driven to rise and fall, during the process of grinding the magnetic material with the grinding roller, the wet dispersant flows out from the liquid outlet of the liquid injection cavity arranged inside the fan-shaped auxiliary unloading workpiece to mix with the magnetic material, so as to prevent the magnetic material from agglomerating during further grinding. At the same time, the fan-shaped auxiliary unloading workpiece will reduce the gap with the grinding roller when descending, and cooperate with the spiral convex teeth to crush the magnetic material again.

[0013] Secondly, the rotating column drives the crushing column to rotate to pre-crush the magnetic material, and at the same time, the crushing column and the magnetic material are in contact and displaced to allow the dry dispersant stored in the storage box to fall and mix with the magnetic material. In this way, the dry dispersant can be added to the magnetic material while the magnetic material is pre-crushed to prevent the magnetic material from agglomerating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention in cross section; Figure 3 It is a structural schematic diagram of the crushing assembly of the present invention; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 is a schematic cross-sectional structural diagram of the grinding assembly of the present invention; Figure 6 for Figure 5 The structural schematic diagram of the present invention is enlarged at B; Figure 7 It is a structural schematic diagram of the linkage rod of the present invention; Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0016] Reference numerals: 1, grinding jar; 101, connecting frame; 102, feeding port; 2, crushing assembly; 201, rotating column; 202, rotating driving member; 203, card slot; 204, crushing column; 205, joint; 206, sliding rod; 207, first spring; 208, card block; 209, blocking rod; 210, base; 211, storage box; 212, card frame; 213, sealing plate; 214, L-shaped linkage plate; 215, second spring; 216, fixing plate; 217, first feeding hole; 218, main shaft; 3, grinding assembly; 301, grinding roller; 302, blanking plate; 303, second blanking hole; 304, fan-shaped auxiliary blanking workpiece; 305, sleeve; 306, lower ring; 307, lower clamp; 308, upper ring; 309, upper clamp; 310, spiral convex teeth; 311, liquid injection cavity; 312, liquid outlet hole; 313, baffle; 314, first one-way valve; 315, stirring teeth; 316, sleeve; 317, linkage rod; 318, annular liquid storage pipe; 319, liquid outlet box; 320, external box; 321, telescopic box; 322, second one-way valve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] Example: Refer to Figures 1 to 8 , a grinding device for producing magnetic materials, comprising: A grinding jar 1, wherein two connecting frames 101 are symmetrically mounted on the upper end surface of the grinding jar 1, and a feed port 102 is fixedly mounted on one side of the outer wall of the grinding jar 1; The pulverizing assembly 2 comprises a rotating column 201 arranged in the grinding jar 1, a storage box 211 is arranged above the grinding jar 1, a crushing gap is formed between the rotating column 201 and the inner wall of the grinding jar 1, the crushing gap can allow the magnetic material crushed by the crushing column 204 to pass through, and the uncrushed magnetic material will remain in the feed port 102, a plurality of crushing columns 204 for crushing the magnetic material are arranged in a circumferential array on the outer wall of the rotating column 201, the storage box 211 intermittently discharges a dry dispersant to mix with the magnetic material during the crushing of the magnetic material by the crushing column 204, and the outer wall of the crushing column 204 is provided with tooth grooves, and the magnetic material is crushed during the rotation of the rotating column 201; The grinding component 3 includes a grinding roller 301 arranged in the grinding tank 1 and below the rotating column 201, and a spiral convex tooth 310 is fixedly installed on the upper end surface of the grinding roller 301. A fan-shaped annular auxiliary unloading workpiece 304 driven to rise and fall is arranged above the grinding roller 301. The upper end surface of the fan-shaped annular auxiliary unloading workpiece 304 is an inner concave surface, and there is a gap between the main shaft 218. The setting of the inner concave surface can effectively assist the crushed magnetic material to slide toward the upper end surface of the grinding roller 301. The fan-shaped annular auxiliary unloading workpiece 304 discharges wet dispersant and mixes with the magnetic material during the process of being driven to rise, and cooperates with the grinding roller 301 to further crush and grind the magnetic material during the process of being driven to descend.

[0020] A rotating driving member 202 is fixedly installed on the upper end surface of the grinding jar 1. The output end of the rotating driving member 202 passes through the grinding jar 1 and is fixedly installed with a main shaft 218. The main shaft 218 is rotatably connected to the top of the grinding jar 1. The lower end of the main shaft 218 passes through the grinding jar 1 and extends to the bottom thereof. The outer wall of the main shaft 218 is fixedly connected to the rotating column 201. The outer wall of the rotating column 201 is provided with a card slot 203 in a circumferential array. The inner top of the card slot 203 is provided with a notch. A plurality of card blocks 208 are fixedly installed in a circumferential array on the lower end surface of the rotating column 201. The upper and lower ends of the crushing column 204 are rotatably installed with joints 2 05, a slide bar 206 is fixedly installed on one side of the joint 205, one of the slide bars 206 is slidably connected to the inner wall of the slot, and the other slide bar 206 is slidably connected to the inside of the block 208, and a first spring 207 is fixedly installed between each joint 205 and the slot and the block 208, and a stopper 209 is fixedly installed on the upper end surface of the joint 205. When the crushing column 204 moves in the slot 203 after contacting with the magnetic material, the joint 205 arranged at the upper end of the crushing column 204 will drive the slide bar 206 to slide in the slot, and the joint 205 arranged at the lower end of the crushing column 204 will drive the slide bar 206 slides inside the block 208 to maintain the stability of the crushing column 204 when it is displaced. The upper end surface of the grinding tank 1 is fixedly installed with a base 210, and the upper end surface of the base 210 is fixedly connected to the storage box 211. The storage box 211 is filled with a dry dispersant. The dry dispersant is an existing material, usually including polyvinyl alcohol, polyurethane dispersants, sodium polyacrylate and fluoride dispersants. It can effectively prevent the agglomeration or aggregation of particles during crushing or grinding. The inner bottom end of the storage box 211 and at the position corresponding to the feed port 102 are provided with a plurality of first feed holes 21 7. A card frame 212 is fixedly installed on the lower end surface of the storage box 211 and at a position corresponding to the first discharge hole 217. A sealing plate 213 is slidably installed on the inner wall of the card frame 212. An L-shaped linkage plate 214 is fixedly installed on one side of the sealing plate 213. A fixing plate 216 is fixedly installed on the upper end surface of the grinding tank 1 and below the base 210. A second spring 215 is fixedly installed between the fixing plate 216 and the L-shaped linkage plate 214. A triangular block is fixedly installed on the inner wall of the storage box 211. The triangular block arranged in the storage box 211 can effectively move the dry and wet dispersants to the first discharge hole 217.

[0021] A sleeve 305 is fixedly installed on the outer wall of the main shaft 218 and below the rotating column 201. The sleeve 305 is rotatably connected to the grinding roller 301. A lower ring 306 is fixedly installed on the outer wall of the sleeve 305. A plurality of lower chucks 307 are fixedly installed in a circumferential array on the upper end surface of the lower ring 306. A liquid injection cavity 311 is opened in the fan-shaped auxiliary material blanking workpiece 304. Liquid outlet holes 312 are evenly opened at the inner bottom end of the liquid injection cavity 311. A plurality of vertical rods are fixedly installed in a circumferential array on the upper end surface of the fan-shaped auxiliary material blanking workpiece 304. The vertical rods are made of existing rubber material. When the magnetic material moves on the upper end surface of the fan-shaped auxiliary material blanking workpiece 304, it flows to the upper end surface of the grinding roller 301 through the gaps between the vertical rods, and the vertical rods made of rubber material have There is a certain elastic force, and in the process of sliding contact between the upper clamp 309 and the lower clamp 307, the fan-shaped auxiliary unloading workpiece 304 is driven to vibrate to assist unloading. The upper ends of the vertical rods are fixedly installed with an upper ring 308, and a plurality of upper clamps 309 are fixedly installed on the circumferential array of the lower end surface of the upper ring 308. The upper clamp 309 is slidably connected with the lower clamp 307. The inner wall of the grinding jar 1 and the lower part of the grinding roller 301 are fixedly installed with an unloading plate 302. The inner wall of the unloading plate 302 is provided with a plurality of second unloading holes 303. The unloading plate 302 is rotatably connected with the main shaft 218. A grinding gap is formed between the grinding roller 301 and the inner wall of the grinding jar 1 and the upper end surface of the unloading plate 302. The grinding roller 301 is made of cemented carbide material, and the magnetic material after grinding can be The liquid flows toward the inner bottom end of the grinding jar 1 through the second discharge hole 303, and a stirring tooth 315 is fixedly installed on the outer wall of the main shaft 218 and inside the grinding jar 1. A reciprocating thread groove is opened on the outer wall of the main shaft 218 and below the grinding jar 1, and a collar 316 is provided on the outer wall of the reciprocating thread groove. A ball is connected to the inner surface of the collar 316 for rolling at a fixed point, and the ball is limited to roll in the reciprocating thread groove. A plurality of linkage rods 317 are fixedly installed in a circular array on the outer wall of the collar 316, and an external box 320 is fixedly installed on the upper end of the linkage rod 317. The external box 320 passes through the grinding jar 1 and is connected to the fan-shaped auxiliary discharge workpiece 304. The external box 320 is slidably connected to the grinding jar 1, and a plurality of baffles 313 are embedded in a circular array on the outer wall of the fan-shaped auxiliary discharge workpiece 304 The baffle 313 is embedded with a first one-way valve 314. An annular liquid storage tube 318 is fixedly installed on the outer wall of the grinding tank 1 and above the external box 320. The annular liquid storage tube 318 is filled with a wet dispersant. The wet dispersant is an existing material, usually polymer dispersants, surfactant dispersants, and inorganic salt dispersants. The wet dispersant is added to improve the dispersibility of the material, prevent particle aggregation and sedimentation, and thus improve the grinding efficiency and quality. The lower circumferential array of the annular liquid storage tube 318 is connected to a liquid outlet box 319, and the upper part of the external box 320 is connected to a telescopic box 321. The telescopic box 321 penetrates the liquid outlet box 319 and is limitedly slidably connected thereto. The upper end surface of the telescopic box 321 is embedded with a second one-way valve 322.In the process of ascending through the reciprocating thread groove driving collar 316 and linkage rod 317, external box 320 will drive telescopic box 321 to slide in the inner wall of liquid outlet box 319, so that the liquid pressure of wet dispersant filled in liquid outlet box 319 and annular liquid storage tube 318 increases, and the wet dispersant with increased hydraulic pressure will flow into telescopic box 321 through second one-way valve 322, and finally flow into injection chamber 311 through first one-way valve 314. The setting of first one-way valve 314 can effectively prevent the injection chamber 311 from flowing back into external box 320. The second one-way valve 322 is used with existing pressure one-way valve, which usually relies on external pressure to open or close the valve.

[0022] The working principle of the present invention is as follows: 1. Crushing magnetic materials and preventing agglomeration: By placing the magnetic material into the feed port 102, the feed port 102 with the inner bevel setting will make the magnetic material constantly approach the rotating column 201, and the rotating driving member 202 is started to drive the main shaft 218 and the rotating column 201 to rotate, and the rotating column 201 will drive the crushing column 204 to rotate. When the crushing column 204 rotates to the feed port 102 and contacts the magnetic material, the crushing column 204 will drive the joint 205 to slide into the slot 203 on the outer wall of the sliding rod 206 and compress the first spring 207. At the same time, the crushing column 204 will crush the magnetic material and crush the magnetic material. In the process of the crushing column 204 sliding into the slot 203, the joint 205 and the blocking rod 209 will be driven to move together and contact the L-shaped linkage plate 214, driving the L-shaped linkage plate 214 to compress the second spring 215 and move in the direction of the fixed plate 216. When the L-shaped linkage plate 214 moves, it will drive the sealing plate 2 13 slides in the card frame 212, and the dry dispersant stored in the storage box 211 will fall into the feed port 102 through the first discharge hole 217. Therefore, in the process of each crushing column 204 crushing the magnetic material, the dry dispersant will fall from the first discharge hole 217 into the feed port 102 and mix with the magnetic material. In this way, the dry dispersant can be continuously added in the process of crushing the magnetic material to avoid that large pieces of magnetic material are not effectively mixed with the dry dispersant after being crushed. The dry dispersant can be adsorbed on the surface of the magnetic material and form a protective film. This protective film can increase the friction between the particles and prevent direct contact and adhesion between the magnetic materials, thereby avoiding particle aggregation. The multiple crushing columns 204 can repeatedly crush the magnetic material as the rotating column 201 rotates continuously. The crushed magnetic material will fall to the inner bottom end of the grinding tank 1 through the crushing gap and above the fan-shaped auxiliary unloading workpiece 304; 2. Grinding and crushing materials: During the rotation of the main shaft 218, the sleeve 305 and the lower ring 306 will be driven to rotate, and the lower ring 306 will drive the lower clamping head 307 to continuously slide in contact with the upper clamping head 309, so that the upper clamping head 309 drives the fan-shaped auxiliary unloading workpiece 304 to vibrate through the vertical rod, so that the magnetic material falling on the upper end surface of the fan-shaped auxiliary unloading workpiece 304 moves toward the axis of the main shaft 218 to the top of the grinding roller 301. During the rotation of the main shaft 218, the grinding roller 301 will be driven to rotate. The rotating grinding roller 301 will drive the upper magnetic material to move toward the inner wall of the grinding tank 1 through centrifugal force, and the grinding roller 301 will grind the magnetic material through the gap between the grinding tank 1 and the unloading plate 302; During the rotation of the main shaft 218, the reciprocating thread groove will drive the collar 316 and the linkage rod 317 to rise and fall. During the lifting process, the linkage rod 317 will drive the external box 320 and the fan-shaped auxiliary unloading workpiece 304 to rise and fall. The fan-shaped auxiliary unloading workpiece 304 will increase the gap with the grinding roller 301 during the rising process, and reduce the gap with the grinding roller 301 during the descending process. While reducing the gap with the grinding roller 301, the grinding roller 301 will further crush the magnetic material through the spiral convex teeth 310 to facilitate subsequent grinding. The ground magnetic material will flow to the inner bottom end of the grinding tank 1 through the second unloading hole 303; 3. Prevent agglomeration after grinding: During the rising process of the external box 320, the external box 320 will drive the telescopic box 321 to slide on the inner wall of the liquid outlet box 319, thereby increasing the liquid pressure in the liquid outlet box 319. The wet dispersant filled in the annular liquid storage tube 318 will flow into the telescopic box 321 through the second one-way valve 322. The wet dispersant in the telescopic box 321 will flow into the liquid injection cavity 311 through the inner wall of the external box 320 and the first one-way valve 314, and flow to the top of the grinding roller 301 through the liquid outlet hole 312 to mix with the magnetic material. In this way, in the subsequent grinding process, the wet dispersant can effectively prevent the magnetic material from agglomerating after grinding. The molecules of the wet dispersant will be adsorbed on the surface of the magnetic material to form a thin film, which changes the interface properties between the particles. This thin film can effectively reduce the van der Waals force, charge attraction or electrostatic adsorption between the magnetic materials, thereby reducing the agglomeration phenomenon between the particles. It should be noted that, when the fan-shaped auxiliary material-cutting workpiece 304 is driven to rise and fall, the upper ring 308 will be driven to rise and fall through the vertical rod, and when the fan-shaped auxiliary material-cutting workpiece 304 is lowered, the upper clamping head 309 will be driven to contact with the rotating lower clamping head 307, and the lower clamping head 307 will push up the upper clamping head 309 when it is in sliding contact with the upper clamping head 309, so that the upper clamping head 309 drives the fan-shaped auxiliary material-cutting workpiece 304 to vibrate through the upper ring 308 and the vertical rod, and the magnetic material on the upper end surface of the auxiliary material-cutting workpiece 304 is assisted to move; During the rotation of the main shaft 218, the stirring teeth 315 are driven to rotate at the inner bottom end of the grinding jar 1 to stir the ground magnetic material. During the stirring process, the dispersant can help the magnetic material to disperse quickly and evenly to prevent the magnetic material from being deposited on the inner bottom end of the grinding jar 1. Through proper stirring, the magnetic particles and the dispersant can be fully mixed, making the dispersion effect more significant and improving the grinding effect.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding device for producing magnetic materials, characterized in that: include: A grinding jar (1), wherein two connecting frames (101) are symmetrically mounted on the upper end surface of the grinding jar (1), and a feed port (102) is fixedly mounted on one side of the outer wall of the grinding jar (1); A pulverizing assembly (2), the pulverizing assembly (2) comprising a rotating column (201) arranged in a grinding jar (1), a storage box (211) being arranged above the grinding jar (1), a grinding gap being formed between the rotating column (201) and the inner wall of the grinding jar (1), a plurality of grinding columns (204) for grinding magnetic materials being arranged in a circular array on the outer wall of the rotating column (201), the storage box (211) intermittently discharging a dry dispersant for mixing with the magnetic material during the process of grinding the magnetic material by the grinding columns (204); A grinding assembly (3), the grinding assembly (3) comprising a grinding roller (301) arranged in a grinding tank (1) and below a rotating column (201), a spiral convex tooth (310) being fixedly mounted on the upper end surface of the grinding roller (301), a fan-shaped auxiliary unloading workpiece (304) being driven to rise and fall being arranged above the grinding roller (301), the fan-shaped auxiliary unloading workpiece (304) discharging a wet dispersant to mix with a magnetic material when being driven to rise, and cooperating with the grinding roller (301) to further crush and grind the magnetic material when being driven to descend.

2. A grinding device for producing magnetic materials according to claim 1, characterized in that: A rotating drive member (202) is fixedly mounted on the upper end surface of the grinding jar (1); an output end of the rotating drive member (202) passes through the grinding jar (1) and is fixedly mounted with a main shaft (218); the main shaft (218) is rotatably connected to the inner top of the grinding jar (1); the lower end of the main shaft (218) passes through the grinding jar (1) and extends to the bottom thereof; the outer wall of the main shaft (218) is fixedly connected to the rotating column (201); a circumferential array of slots (203) is provided on the outer wall of the rotating column (201); a notch is provided on the inner top of the slot (203); and the rotating column (201) is provided with a plurality of slots (203). A plurality of blocks (208) are fixedly mounted in a circular array on the lower end surface of (201); a joint (205) is rotatably mounted on the upper and lower ends of the crushing column (204); a sliding rod (206) is fixedly mounted on one side of the joint (205); one of the sliding rods (206) is slidably connected to the inner wall of the slot, and the other sliding rod (206) is slidably connected to the inside of the block (208); a first spring (207) is fixedly mounted between each of the joints (205) and the slot and the block (208); and a stop rod (209) is fixedly mounted on the upper end surface of the joint (205).

3. A grinding device for producing magnetic materials according to claim 2, characterized in that: A base (210) is fixedly mounted on the upper end surface of the grinding jar (1), the upper end surface of the base (210) is fixedly connected to a storage box (211), the storage box (211) is filled with a dry dispersant, a plurality of first material discharge holes (217) are provided at the inner bottom end of the storage box (211) and at positions corresponding to the material feed port (102), a clamping frame (212) is fixedly mounted on the lower end surface of the storage box (211) and at positions corresponding to the first material discharge holes (217), a sealing plate (213) is slidably mounted on the inner wall of the clamping frame (212), an L-shaped linkage plate (214) is fixedly mounted on one side of the sealing plate (213), a fixing plate (216) is fixedly mounted on the upper end surface of the grinding jar (1) and below the base (210), a second spring (215) is fixedly mounted between the fixing plate (216) and the L-shaped linkage plate (214), and a triangular block is fixedly mounted on the inner wall of the storage box (211).

4. A grinding device for producing magnetic materials according to claim 3, characterized in that: A sleeve (305) is fixedly mounted on the outer wall of the main shaft (218) and below the rotating column (201); the sleeve (305) is rotatably connected to the grinding roller (301); a lower ring (306) is fixedly mounted on the outer wall of the sleeve (305); a plurality of lower clamps (307) are fixedly mounted in a circular array on the upper end surface of the lower ring (306); a liquid injection cavity (311) is provided in the fan-shaped auxiliary material removal workpiece (304); liquid outlet holes (312) are evenly provided at the inner bottom end of the liquid injection cavity (311); a plurality of vertical rods are fixedly mounted in a circular array on the upper end surface of the fan-shaped auxiliary material removal workpiece (304); an upper ring (308) is fixedly mounted on the upper ends of the vertical rods; a plurality of upper clamps (309) are fixedly mounted in a circular array on the lower end surface of the upper ring (308); the upper clamps (309) are slidably connected to the lower clamps (307).

5. A grinding device for producing magnetic materials according to claim 4, characterized in that: A blanking plate (302) is fixedly mounted on the inner wall of the grinding jar (1) and below the grinding roller (301); a plurality of second blanking holes (303) are provided on the inner wall of the blanking plate (302); the blanking plate (302) is rotatably connected to the main shaft (218); and a grinding gap is formed between the grinding roller (301), the inner wall of the grinding jar (1), and the upper end surface of the blanking plate (302).

6. A grinding device for producing magnetic materials according to claim 2, characterized in that: A stirring tooth (315) is fixedly mounted on the outer wall of the main shaft (218) and inside the grinding jar (1); a reciprocating thread groove is formed on the outer wall of the main shaft (218) and below the grinding jar (1); a collar (316) is provided on the outer wall of the reciprocating thread groove; a ball is connected to the inner surface of the collar (316) in a fixed-point rolling manner, and the ball rolls in the reciprocating thread groove in a limited position; a plurality of linkage rods (317) are fixedly mounted in a circumferential array on the outer wall of the collar (316); an external connection box (320) is fixedly mounted on the upper end of the linkage rod (317); the external connection box (320) passes through the grinding jar (1) and is in communication with the fan-shaped auxiliary material removal workpiece (304); the external connection box (320) is slidably connected to the grinding jar (1); a plurality of baffles (313) are embedded in a circumferential array on the outer wall of the fan-shaped auxiliary material removal workpiece (304); a first one-way valve (314) is embedded in the baffle (313).

7. A grinding device for producing magnetic materials according to claim 6, characterized in that: An annular liquid storage tube (318) is fixedly mounted on the outer wall of the grinding jar (1) and above the external box (320); the annular liquid storage tube (318) is filled with a wet dispersant; a liquid outlet box (319) is connected to a circular array below the annular liquid storage tube (318); a telescopic box (321) is connected to the external box (320) above; the telescopic box (321) penetrates the liquid outlet box (319) and is slidably connected thereto in a limited position; a second one-way valve (322) is embedded on the upper end surface of the telescopic box (321).

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