A grinding device for the production of magnetic materials

Abstract

The application relates to the technical field of grinding equipment, in particular to a grinding equipment for magnetic material production. The grinding equipment comprises a grinding tank, two connecting frames are symmetrically arranged on the upper end surface of the grinding tank, and a feeding port is fixedly arranged on one side of the outer wall of the grinding tank; a crushing assembly is arranged in the grinding tank and comprises a rotating column, 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. In the process of grinding the magnetic material by the grinding roller, the fan ring-shaped auxiliary discharging workpiece driven to ascend is used, wet dispersing agents in a liquid injection cavity arranged in the fan ring-shaped auxiliary discharging workpiece flow out from liquid outlets to mix with the magnetic material, so that the magnetic material is prevented from gathering together during regrinding, meanwhile, the gap between the fan ring-shaped auxiliary discharging workpiece and the grinding roller is reduced when the fan ring-shaped auxiliary discharging workpiece descends, and the magnetic material is crushed again in cooperation with the spiral convex teeth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding equipment, in particular to a grinding equipment for magnetic material production. BACKGROUND

[0002] Magnetic material refers to a material that can be affected by a magnetic field or has magnetism.

[0003] In the process of manufacturing magnetic storage devices such as hard disk drives and magnetic tape storage, very small and uniform magnetic materials are needed, 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 it is necessary to accurately grind and control the particle size of magnetic materials.

[0004] The existing equipment usually adds a dispersing agent at one time before grinding the magnetic material, which is difficult to dynamically adapt to the dynamic changes of the surface of the magnetic material particles during the grinding process, resulting in uneven distribution of the dispersing agent, which cannot effectively inhibit the agglomeration phenomenon in the subsequent grinding process, and the existing equipment often separates the crushing and grinding processes, resulting in poor integration, high energy consumption and long process, for example, the coarsely crushed magnetic material needs to be transferred to an independent grinding unit, which is easy to introduce pollution and cause secondary agglomeration of the magnetic material particles during the process. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the present application provides a grinding equipment for magnetic material production, which can effectively solve the problem of magnetic material agglomeration in the grinding process of the prior art.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The present application provides a grinding equipment for magnetic material production, comprising:

[0008] A grinding tank, two connecting frames are symmetrically installed on the upper end face of the grinding tank, and a feed inlet is fixedly installed on one side of the outer wall of the grinding tank;

[0009] A crushing assembly, the crushing assembly comprises a rotating column arranged in the grinding tank, a storage box is arranged above the grinding tank, a crushing gap is formed between the rotating column and the inner wall of the grinding tank, a plurality of crushing columns for crushing the magnetic material are arranged in an array on the outer wall of the rotating column, and the storage box intermittently discharges dry dispersing agent mixed with the magnetic material during the crushing process of the magnetic material.

[0010] The grinding assembly includes a grinding roller disposed inside a grinding tank and below a rotating column. The upper end face of the grinding roller is fixedly equipped with helical teeth. Above the grinding roller is a fan-shaped auxiliary feeding workpiece that is driven to rise and fall. During the process of being driven to rise, the fan-shaped auxiliary feeding workpiece discharges a wet dispersant and mixes it with the magnetic material. During the process of being driven to fall, it cooperates with the grinding roller to further crush and grind the magnetic material.

[0011] Preferably, a rotary drive component is fixedly installed on the upper end face of the grinding jar. The output end of the rotary drive component 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 extends through the grinding jar to its lower part. The outer wall of the main shaft is fixedly connected to a rotating column. The outer wall of the rotating column has a circumferential array of slots. The top end of the slots has a groove. Multiple locking blocks are fixedly installed in a circumferential array on the lower end face of the rotating column. A connector is rotatably installed at the upper and lower ends of the crushing column. A sliding rod is fixedly installed on one side of the connector. One of the sliding rods is slidably connected to the inner wall of the groove, and the other sliding rod is slidably connected to the inside of the locking block. A first spring is fixedly installed between each connector, groove, and locking block. A stop bar is fixedly installed on the upper end face of the connector.

[0012] Preferably, a base is fixedly installed on the upper end face of the grinding jar, and the upper end face of the base is fixedly connected to the storage box. The storage box is filled with dry dispersant. A plurality of first discharge holes are opened at the inner bottom end of the storage box at the position corresponding to the feed inlet. A clamping frame is fixedly installed on the lower end face of the storage box at the position corresponding to the first discharge holes. A sealing plate is slidably installed on the inner wall of the clamping 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 face of the grinding jar below the base. A second spring is fixedly installed between the fixing plate and the L-shaped linkage plate. A triangular block is fixedly installed on the inner wall of the storage box.

[0013] Preferably, a sleeve is fixedly installed on the outer wall of the main shaft 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. Multiple lower clamping heads are fixedly installed in a circumferential array on the upper end face of the lower ring. A liquid injection cavity is opened inside the fan-shaped auxiliary feeding workpiece. Liquid outlet holes are evenly opened at the bottom end of the liquid injection cavity. Multiple vertical rods are fixedly installed in a circumferential array on the upper end face of the fan-shaped auxiliary feeding workpiece. An upper ring is fixedly installed on the upper end of the vertical rods. Multiple upper clamping heads are fixedly installed in a circumferential array on the lower end face of the upper ring. The upper clamping heads are slidably connected to the lower clamping heads.

[0014] Preferably, a feeding plate is fixedly installed on the inner wall of the grinding tank and below the grinding roller. The inner wall of the feeding plate has multiple second feeding holes. The feeding plate is rotatably connected to the main shaft. The grinding roller, the inner wall of the grinding tank, and the upper surface of the feeding plate form a grinding gap.

[0015] Preferably, the outer wall of the main shaft is fixedly installed with stirring teeth inside the grinding jar, and the outer wall of the main shaft is provided with a reciprocating threaded groove below the grinding jar. The outer wall of the reciprocating threaded groove is provided with a collar, and a ball is fixedly connected to a certain point on the inner surface of the collar. The ball is limited to rolling within the reciprocating threaded groove. Multiple linkage rods are fixedly installed in a circumferential array on the outer wall of the collar. An external box is fixedly installed at the upper end of the linkage rod. The external box passes through the grinding jar and communicates with the fan-shaped auxiliary feeding workpiece. The external box is slidably connected to the grinding jar. Multiple baffles are embedded in the circumferential array on the outer wall of the fan-shaped auxiliary feeding workpiece. A first one-way valve is embedded in the baffle.

[0016] Preferably, an annular liquid storage tube is fixedly installed on the outer wall of the grinding tank and above the outer box. The annular liquid storage tube is filled with wet dispersant. A liquid outlet box is connected to the lower circumferential array of the annular liquid storage tube. A telescopic box is connected to the upper part of the outer box. The telescopic box passes through the liquid outlet box and is slidably connected to it. A second one-way valve is embedded on the upper end face of the telescopic box.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0018] First, the fan-shaped auxiliary feeding workpiece, which is driven to rise and fall, mixes with the magnetic material by the liquid dispensing chamber inside the fan-shaped auxiliary feeding workpiece, which is set inside the grinding roller during the grinding process. This prevents the magnetic material from agglomerating during the grinding process. At the same time, the fan-shaped auxiliary feeding workpiece reduces the gap between itself and the grinding roller as it descends, and works with the spiral teeth to crush the magnetic material again.

[0019] Secondly, the rotating column drives the crushing column to rotate, thereby pre-crushing the magnetic material. At the same time, the contact displacement between the crushing column and the magnetic material causes 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 it is being pre-crushed, thus preventing the magnetic material from agglomerating. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the pulverizing component of the present invention;

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a cross-sectional view of the grinding assembly of the present invention;

[0026] Figure 6 for Figure 5 Enlarged structural schematic diagram of the present invention at point B;

[0027] Figure 7 This is a schematic diagram of the linkage mechanism of the present invention;

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point C.

[0029] Reference numerals: 1. Grinding jar; 101. Connecting frame; 102. Feed inlet; 2. Crushing assembly; 201. Rotating column; 202. Rotary drive component; 203. Slot; 204. Crushing column; 205. Connector; 206. Slide rod; 207. First spring; 208. Locking block; 209. Stop bar; 210. Base; 211. Storage box; 212. Locking frame; 213. Sealing plate; 214. L-shaped linkage plate; 215. Second spring; 216. Fixing plate; 217. First discharge hole; 218. Main shaft; 3. Grinding assembly; 301. Grinding roller; 302. Feeding plate; 303. Second feeding hole; 304. Fan-shaped auxiliary feeding workpiece; 305. Sleeve; 306. Lower ring; 307. Lower clamp; 308. Upper ring; 309. Upper clamp; 310. Spiral tooth; 311. Injection chamber; 312. Outlet hole; 313. Baffle; 314. First one-way valve; 315. Stirring tooth; 316. Collar; 317. Linkage rod; 318. Annular liquid storage tube; 319. Outlet box; 320. External connection box; 321. Telescopic box; 322. Second one-way valve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The present invention will be further described below with reference to embodiments.

[0032] Example: Refer to Figures 1 to 8 A grinding apparatus for the production of magnetic materials, comprising:

[0033] Grinding jar 1, with two connecting brackets 101 symmetrically installed on the upper end face of grinding jar 1, and a feed inlet 102 fixedly installed on one side of the outer wall of grinding jar 1;

[0034] The pulverizing component 2 includes a rotating column 201 disposed inside the grinding tank 1. A storage tank 211 is disposed above the grinding tank 1. A crushing gap is formed between the rotating column 201 and the inner wall of the grinding tank 1. The crushing gap allows the magnetic material crushed by the crushing column 204 to pass through. Uncrushed magnetic material will remain in the feed inlet 102. Multiple crushing columns 204 for crushing magnetic materials are arranged in a circumferential array on the outer wall of the rotating column 201. During the crushing of magnetic materials by the crushing column 204, the storage tank 211 intermittently discharges dry dispersant to mix with the magnetic material. The outer wall of the crushing column 204 is provided with tooth grooves, which crush the magnetic material as the rotating column 201 rotates.

[0035] The grinding assembly 3 includes a grinding roller 301 disposed inside the grinding tank 1 and below the rotating column 201. The upper end face of the grinding roller 301 is fixedly mounted with helical teeth 310. Above the grinding roller 301, a fan-shaped auxiliary feeding workpiece 304 is disposed and driven to move up and down. The upper end face of the fan-shaped auxiliary feeding workpiece 304 is concave and has a gap with the main shaft 218. The concave shape can effectively assist the crushed magnetic material to slide onto the upper end face of the grinding roller 301. During the process of being driven to rise, the fan-shaped auxiliary feeding workpiece 304 discharges wet dispersant and mixes with the magnetic material. During the process of being driven to fall, it cooperates with the grinding roller 301 to further crush and grind the magnetic material.

[0036] A rotary drive component 202 is fixedly installed on the upper end face of the grinding jar 1. The output end of the rotary drive component 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 end of the grinding jar 1. The lower end of the main shaft 218 passes through the grinding jar 1 and extends below it. The outer wall of the main shaft 218 is fixedly connected to the rotating column 201. The outer wall of the rotating column 201 has a circumferential array of slots 203. The top end of the slots 203 has a groove. Multiple locking blocks 208 are fixedly installed in a circumferential array on the lower end face of the rotating column 201. The upper and lower ends of the crushing column 204 are rotatably installed with connectors 2. 05. A sliding rod 206 is fixedly installed on one side of the connector 205. One sliding rod 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 locking block 208. A first spring 207 is fixedly installed between each connector 205, the slot, and the locking block 208. A stop bar 209 is fixedly installed on the upper end face of the connector 205. When the crushing column 204 moves within the slot 203 after contacting the magnetic material, the connector 205 at the upper end of the crushing column 204 will drive the sliding rod 206 to slide within the slot, and the connector 205 at the lower end of the crushing column 204 will drive the sliding rod 206 to slide within the slot. 206 slides inside the clamping block 208 to maintain the stability of the crushing column 204 during displacement. A base 210 is fixedly installed on the upper end face of the grinding tank 1. The upper end face 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. Multiple first discharge holes 21 are opened at the inner bottom of the storage box 211 and at the position corresponding to the feed inlet 102. 7. A frame 212 is fixedly installed on the lower end face of the storage tank 211 at the position corresponding to the first discharge hole 217. A sealing plate 213 is slidably installed on the inner wall of the 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 face of the grinding tank 1 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 tank 211. The triangular block set in the storage tank 211 can effectively move the dry and wet dispersant to the first discharge hole 217.

[0037] 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. Multiple lower clamps 307 are fixedly installed in a circumferential array on the upper end face of the lower ring 306. A liquid injection cavity 311 is opened inside the fan-shaped auxiliary feeding workpiece 304. Liquid outlet holes 312 are evenly opened at the bottom end of the inner side of the liquid injection cavity 311. Multiple vertical rods are fixedly installed in a circumferential array on the upper end face of the fan-shaped auxiliary feeding workpiece 304. The vertical rods are made of existing rubber material. When the magnetic material moves on the upper end face of the fan-shaped auxiliary feeding workpiece 304, it flows to the upper end face of the grinding roller 301 through the gaps between the vertical rods. The vertical rods made of rubber material have... It has a certain elasticity. During the sliding contact between the upper clamp 309 and the lower clamp 307, it drives the fan-shaped auxiliary unloading workpiece 304 to vibrate and assist unloading. The upper end of the vertical rod is fixedly installed with an upper ring 308. Multiple upper clamps 309 are fixedly installed in a circumferential array on the lower end face of the upper ring 308. The upper clamps 309 and the lower clamps 307 are slidably connected. A feeding plate 302 is fixedly installed on the inner wall of the grinding tank 1 and below the grinding roller 301. Multiple second feeding holes 303 are opened on the inner wall of the feeding plate 302. The feeding plate 302 is rotatably connected to the main shaft 218. The grinding roller 301, the inner wall of the grinding tank 1, and the upper end face of the feeding plate 302 form a grinding gap. The grinding roller 301 is made of hard alloy material. The magnetic material after grinding can be... The material flows into the inner bottom of the grinding jar 1 through the second discharge hole 303. A stirring tooth 315 is fixedly installed on the outer wall of the main shaft 218 inside the grinding jar 1. A reciprocating thread groove is formed on the outer wall of the main shaft 218 below the grinding jar 1. A collar 316 is provided on the outer wall of the reciprocating thread groove. A ball bearing is fixedly connected to the inner surface of the collar 316, and the ball bearing is limited to rolling within the reciprocating thread groove. Multiple linkage rods 317 are fixedly installed in a circumferential array on the outer wall of the collar 316. An external connecting box 320 is fixedly installed at the upper end of the linkage rod 317. The external connecting box 320 penetrates the grinding jar 1 and communicates with the fan-shaped auxiliary discharge workpiece 304. The external connecting box 320 is slidably connected to the grinding jar 1. Multiple baffles 313 are embedded in a circumferential array on the outer wall of the fan-shaped auxiliary discharge workpiece 304. A first one-way valve 314 is embedded in the baffle 313. An annular liquid storage pipe 318 is fixedly installed on the outer wall of the grinding tank 1 above the external connection box 320. The annular liquid storage pipe 318 is filled with a wet dispersant. The wet dispersant is an existing material, usually a polymer dispersant, a surfactant dispersant, or an inorganic salt dispersant. The addition of the wet dispersant is to improve the dispersibility of the material, prevent particle aggregation and sedimentation, thereby improving grinding efficiency and quality. A liquid outlet box 319 is connected to the lower circumferential array of the annular liquid storage pipe 318. A telescopic box 321 is connected to the upper part of the external connection box 320. The telescopic box 321 passes through the liquid outlet box 319 and is slidably connected to it. A second one-way valve 322 is embedded in the upper end face of the telescopic box 321.During the upward movement of the reciprocating threaded drive collar 316 and linkage rod 317, the outer box 320 drives the telescopic box 321 to slide within the inner wall of the outlet box 319. This increases the pressure of the wet dispersant liquid filling the outlet box 319 and the annular storage pipe 318. The increased hydraulic pressure causes the wet dispersant to flow into the telescopic box 321 through the second check valve 322, and finally into the injection chamber 311 through the first check valve 314. The first check valve 314 effectively prevents backflow from the injection chamber 311 into the outer box 320. The second check valve 322 uses an existing pressure-type check valve, which typically relies on external pressure to open or close.

[0038] The working principle of this invention is as follows:

[0039] 1. Crushing Magnetic Materials and Preventing Agglomeration: By placing the magnetic material into the feed inlet 102, the inclined surface of the feed inlet 102 causes the magnetic material to continuously approach the rotating column 201. The rotating drive 202 is activated, causing the main shaft 218 and the rotating column 201 to rotate. The rotating column 201 then drives the crushing column 204 to rotate. When the crushing column 204 rotates to the feed inlet 102 and contacts the magnetic material, it causes the connector 205 to slide along the outer wall of the slide bar 206 into the slot 203 and compress the first spring 207. Simultaneously, the crushing column 204 crushes the magnetic material. During the sliding process of the crushing column 204 into the slot 203, it causes the connector 205 and the stop bar 209 to move together and contact the L-shaped linkage plate 214, causing the L-shaped linkage plate 214 to compress the second spring 215 and move towards the fixed plate 216. Simultaneously, the L-shaped linkage plate 214 moves, causing the sealing plate 2... 13 slides within the frame 212. The dry dispersant stored in the storage box 211 will fall into the feed inlet 102 through the first discharge hole 217. Therefore, during each crushing process of the crushing column 204 crushing the magnetic material, the dry dispersant will fall from the first discharge hole 217 into the feed inlet 102 and mix with the magnetic material. This allows the dry dispersant to be continuously added during the crushing process of the magnetic material, preventing large pieces of magnetic material from not being 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 particles and prevent direct contact and adhesion between magnetic materials, thereby preventing 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 into the inner bottom of the grinding tank 1 through the crushing gap and onto the top of the fan-shaped auxiliary feeding workpiece 304.

[0040] 2. Grinding and crushing materials: During the rotation of the main shaft 218, the sleeve 305 and the lower ring 306 will rotate. The lower ring 306 will cause the lower chuck 307 to continuously slide and contact the upper chuck 309, causing the upper chuck 309 to drive the fan-shaped auxiliary feeding workpiece 304 to vibrate through the vertical rod. This causes the magnetic material falling on the upper surface of the fan-shaped auxiliary feeding workpiece 304 to move towards the axis of the main shaft 218 and move above the grinding roller 301. During the rotation of the main shaft 218, the grinding roller 301 will rotate. The rotating grinding roller 301 will drive the magnetic material above to move towards the inner wall of the grinding tank 1 through centrifugal force. The grinding roller 301 will grind the magnetic material through the gap between the grinding tank 1 and the feeding plate 302.

[0041] During the rotation of the main shaft 218, the reciprocating thread groove drives the collar 316 and the linkage rod 317 to rise and fall. During the rising and falling process, the linkage rod 317 drives the outer box 320 and the fan-shaped auxiliary feeding workpiece 304 to rise and fall. During the rising process, the fan-shaped auxiliary feeding workpiece 304 increases the gap between itself and the grinding roller 301, and decreases the gap between itself and the grinding roller 301 during the falling process. While decreasing the gap with the grinding roller 301, the grinding roller 301 further crushes the magnetic material through the spiral protrusions 310, which facilitates subsequent grinding. The ground magnetic material flows into the inner bottom of the grinding tank 1 through the second feeding hole 303.

[0042] 3. Preventing Agglomeration After Grinding: During the upward movement of the outer box 320, the outer box 320 will cause the telescopic box 321 to slide on the inner wall of the liquid outlet box 319, increasing the hydraulic pressure in the liquid outlet box 319. The wet dispersant filling the annular 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 injection chamber 311 through the inner wall of the outer box 320 and the first one-way valve 314, and then flow above the grinding roller 301 through the liquid outlet 312 to mix with the magnetic material. In this way, during the subsequent grinding process, the wet dispersant can effectively prevent the magnetic material after grinding from agglomerating. The molecules of the wet dispersant will be adsorbed on the surface of the magnetic material to form a thin film, changing the interfacial properties between particles. This thin film can effectively reduce the van der Waals force, electrostatic attraction or electrostatic adsorption force between magnetic materials, thereby reducing the agglomeration phenomenon between particles.

[0043] It should be noted that during the process of the fan-shaped auxiliary unloading workpiece 304 being driven to rise and fall, the upper ring 308 will be driven to rise and fall through the vertical rod. During the descent of the fan-shaped auxiliary unloading workpiece 304, the upper clamping head 309 will be driven to contact the rotating lower clamping head 307. When the lower clamping head 307 slides in contact with the upper clamping head 309, it will push the upper clamping head 309 upward, so that the upper clamping head 309 drives the fan-shaped auxiliary unloading workpiece 304 to vibrate through the upper ring 308 and the vertical rod, thereby assisting the magnetic material on the upper surface of the fan-shaped auxiliary unloading workpiece 304 to move.

[0044] During the rotation of the main shaft 218, the stirring teeth 315 rotate at the bottom of the grinding jar 1 to stir the ground magnetic material. During the stirring process, the dispersant helps the magnetic material to disperse quickly and evenly, preventing the magnetic material from depositing at the bottom of the grinding jar 1. With proper stirring, the magnetic particles and the dispersant can be fully mixed, resulting in a more significant dispersion effect and improved grinding effect.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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 apparatus for the production of magnetic materials, characterized in that, include: Grinding jar (1), with two connecting brackets (101) symmetrically installed on the upper end face of the grinding jar (1), and a feed inlet (102) fixedly installed on one side of the outer wall of the grinding jar (1). The pulverizing component (2) includes a rotating column (201) disposed inside a grinding tank (1), a storage tank (211) disposed above the grinding tank (1), a crushing gap being formed between the rotating column (201) and the inner wall of the grinding tank (1), and a plurality of crushing columns (204) for crushing magnetic materials being arranged in a circumferential array on the outer wall of the rotating column (201), and the storage tank (211) intermittently discharging dry dispersant to mix with the magnetic material during the crushing process of the crushing column (204); The grinding assembly (3) includes a grinding roller (301) disposed inside the grinding tank (1) and below the rotating column (201). The upper end face of the grinding roller (301) is fixedly equipped with a spiral tooth (310). Above the grinding roller (301) is a fan-shaped auxiliary feeding workpiece (304) that is driven to rise and fall. The fan-shaped auxiliary feeding workpiece (304) discharges wet dispersant and mixes with 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 fall. A rotary drive component (202) is fixedly installed on the upper end face of the grinding jar (1). The output end of the rotary drive component (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 end of the grinding jar (1). The lower end of the main shaft (218) extends through the grinding jar (1) to its lower end. The outer wall of the main shaft (218) is fixedly connected to a rotating column (201). The outer wall of the rotating column (201) is provided with a circumferential array of slots (203). The top end of the slots (203) is provided with a groove. Multiple locking blocks (208) are fixedly installed in a circular array on the lower end face of (201). The upper and lower ends of the crushing column (204) are rotatably installed with joints (205). A sliding rod (206) is fixedly installed 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 locking block (208). A first spring (207) is fixedly installed between each joint (205) and the slot and locking block (208). A stop bar (209) is fixedly installed on the upper end face of the joint (205). During the rotation of the main shaft (218), the grinding roller (301) will be driven to rotate; 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). A collar (316) is provided on the outer wall of the reciprocating thread groove. A ball is fixedly connected to the inner surface of the collar (316) and the ball is limited to rolling in the reciprocating thread groove. Multiple linkage rods (317) are fixedly installed in a circumferential array on the outer wall of the collar (316). An external box (320) is fixedly installed at the upper end of the linkage rod (317). The external box (320) passes through the grinding jar (1) and communicates with the fan-shaped auxiliary feeding workpiece (304). The external box (320) is slidably connected to the grinding jar (1). Multiple baffles (313) are embedded in the circumferential array on the outer wall of the fan-shaped auxiliary feeding workpiece (304). A first one-way valve (314) is embedded in the baffle (313). An annular liquid storage tube (318) is fixedly installed on the outer wall of the grinding tank (1) and above the external connection box (320). The annular liquid storage tube (318) is filled with wet dispersant. The lower part of the annular liquid storage tube (318) is connected to the outlet box (319) in a circular array. The upper part of the external connection box (320) is connected to the telescopic box (321). The telescopic box (321) passes through the outlet box (319) and is limited and slidably connected to it. The upper end face of the telescopic box (321) is fitted with a second one-way valve (322).

2. The grinding equipment for producing magnetic materials according to claim 1, characterized in that, A base (210) is fixedly installed on the upper end face of the grinding tank (1). The upper end face of the base (210) is fixedly connected to the storage box (211). The storage box (211) is filled with dry dispersant. Multiple first discharge holes (217) are opened at the bottom inner end of the storage box (211) at the position corresponding to the feed inlet (102). A frame (212) is fixedly installed on the lower end face of the storage box (211) at the position corresponding to the first discharge hole (217). A sealing plate (213) is slidably installed on the inner wall of the 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 face of the grinding tank (1) 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).

3. A grinding apparatus for producing magnetic materials according to claim 2, characterized in that, 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). Multiple lower clamps (307) are fixedly installed in a circumferential array on the upper end face of the lower ring (306). A liquid injection cavity (311) is opened in the fan-shaped auxiliary feeding workpiece (304). A liquid outlet hole (312) is evenly opened at the bottom of the inner end of the liquid injection cavity (311). Multiple vertical rods are fixedly installed in a circumferential array on the upper end face of the fan-shaped auxiliary feeding workpiece (304). An upper ring (308) is fixedly installed on the upper end of the vertical rods. Multiple upper clamps (309) are fixedly installed in a circumferential array on the lower end face of the upper ring (308). The upper clamps (309) are slidably connected to the lower clamps (307).

4. A grinding apparatus for producing magnetic materials according to claim 3, characterized in that, A feeding plate (302) is fixedly installed on the inner wall of the grinding tank (1) and below the grinding roller (301). The inner wall of the feeding plate (302) is provided with a plurality of second feeding holes (303). The feeding plate (302) is rotatably connected to the main shaft (218). The grinding roller (301), the inner wall of the grinding tank (1), and the upper end face of the feeding plate (302) form a grinding gap.

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