Accurate grinding device for magnetic material production

Abstract

The invention discloses a fine grinding device for magnetic material production, and belongs to the technical field of material fine grinding, the fine grinding device comprises a crushing device, the crushing device is used for preliminarily crushing a magnetic material, the crushing device is provided with a modification device, the modification device is used for changing the character of the magnetic material, the modification device is provided with a grinding device, and the grinding device is used for grinding the magnetic material. The grinding device is used for accurately grinding the modified brittle sheet-shaped magnetic material; the crushing device primarily crushes the magnetic material, and the property of the magnetic material is changed through the denaturation device, so that the magnetic material becomes brittle, subsequent grinding processing is facilitated, and the grinding effect is improved; a magnetic material is finely ground in a high-pressure hydrogen injection mode, meanwhile, the magnetic material can be prevented from being damaged in a physical grinding mode, and meanwhile through transverse air blowing and continuously moving longitudinal air blowing, the magnetic raw material is effectively ground under the dual effects of continuous inlet and outlet of hydrogen and mutual friction and extrusion of the raw material. And the magnetic raw materials are crushed into small spherical particles, and the fine grinding effect is good.

Description

Technical Field

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

[0002] Magnetic materials are composed of ferromagnetic or ferrimagnetic materials. Magnetic materials can respond to magnetic fields in some way. Magnetic materials can be divided into ferromagnetic materials, soft materials, hard magnetic materials and composite magnetic materials. The performance of magnetic materials is related to factors such as their alloy composition, particle size, and particle shape. In addition to the alloy composition that needs to be proportioned according to different scenarios, the particle size and shape need to be controlled in production to ensure the performance of magnetic materials. The grinding process of magnetic materials is not only an important step in material processing, but also directly affects the performance of the final product. When grinding magnetic materials, it is necessary to comprehensively consider factors such as grinding methods, processing parameters, cooling and lubrication to ensure the accuracy and efficiency of the processing effect. The magnetic material fine grinding device in the prior art does not modify the material, which is not conducive to subsequent processing. At the same time, physical grinding is used, and the grinding is insufficient. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is as follows: a fine grinding device for producing magnetic materials, comprising a crushing device, the crushing device comprising a feed box, the crushing device is used to preliminarily crush the magnetic material, the crushing device is provided with a modifying device, the modifying device comprises a smelting furnace, the modifying device is used to change the properties of the magnetic material, the modifying device is provided with a grinding device, the grinding device comprises an air duct, the air duct is fixedly installed with the smelting furnace, and the grinding device is used to finely grind the magnetic material that becomes brittle flakes after modification; The crushing device comprises a left crushing wheel and a right crushing wheel rotatably mounted on the feed box, an inner crushing gear is fixedly mounted on the left crushing wheel, and a slave crushing gear is fixedly mounted on the right crushing wheel, and the inner crushing gear meshes with the slave crushing gear; The modification device comprises a cooling chamber fixedly installed below the smelting furnace, a rotating gear is rotatably installed on the smelting furnace, a discharge pipe is rotatably installed on the cooling chamber, and an intermittent baffle is fixedly installed on the rotating gear; The grinding device comprises a fine grinding chamber fixedly mounted on the air duct, wherein two heat exchange plates are arranged on the fine grinding chamber, which are used for cooling and heating respectively, and a rotating gear ring is rotatably mounted on the fine grinding chamber, and a rotating elbow is eccentrically fixedly mounted on the rotating gear ring.

[0004] Furthermore, the crushing device also includes a crushing motor arranged next to the feed box, a motor gear is fixedly installed on the motor shaft of the crushing motor, an outer crushing gear is fixedly installed on the inner crushing gear, a crushing transmission belt is wound around the outer crushing gear and the motor gear, a middle gear is fixedly installed on the right crushing wheel, an inner middle gear and an outer middle gear are fixedly installed on the left crushing wheel, and the inner middle gear is meshed with the middle gear.

[0005] Furthermore, a lower transmission wheel is rotatably installed on the feed box, a bottom transmission wheel is fixedly installed on the lower transmission wheel, a vertical transmission belt is wrapped around the outer middle gear and the bottom transmission wheel, an upper transmission wheel is rotatably installed on the smelting furnace, a conveyor belt is wrapped around the upper transmission wheel and the lower transmission wheel, and a plurality of toggle bars are provided on the conveyor belt.

[0006] Furthermore, a discharging electric cylinder is fixedly mounted on the feed box, a baffle plate is slidably mounted on the bottom of the feed box, and the baffle plate is fixedly mounted on the top of the discharging electric cylinder.

[0007] The rotation of the crushing motor drives the motor gear to rotate, which drives the outer crushing gear and the inner crushing gear to rotate through the crushing transmission belt, thereby driving the left crushing wheel to rotate. The inner crushing gear drives the slave crushing gear and the right crushing wheel to rotate. The left crushing wheel and the right crushing wheel rotate in opposite directions. The left crushing wheel drives the inner middle gear and the outer middle gear to rotate, and drives the bottom drive wheel to rotate through the vertical transmission belt, thereby driving the lower drive wheel to move.

[0008] Put the magnetic material in from the top of the feed box, and crush it by the left crushing wheel and the right crushing wheel. The crushed magnetic material falls onto the baffle plate. When a certain amount of magnetic material accumulates on the baffle plate, the discharge electric cylinder extends to drive the baffle plate to slide along the feed box. The magnetic material on the baffle plate falls onto the conveyor belt, and is transported to the smelting furnace through the conveyor belt.

[0009] Furthermore, the modification device also includes a transmission gear and an intermediate gear rotatably mounted on the cooling chamber, the transmission gear meshes with the intermediate gear, and the intermediate gear meshes with the rotating gear. A plurality of partition holes are arranged in the smelting furnace, and only liquid raw materials and small-sized raw materials are allowed to pass through. A scraper rod is fixedly mounted on the discharge pipe, and the tail of the discharge pipe is an oblique mouth, which slowly rotates relative to the cooling chamber when the raw materials in the discharge pipe flow out.

[0010] Furthermore, a push plate is slidably mounted on the cooling chamber, a push plate electric cylinder is fixedly mounted on the cooling chamber, and a push plate is fixedly mounted on the top of the push plate electric cylinder.

[0011] Furthermore, a heater is provided in the smelting furnace, and a cooler is provided in the cooling chamber.

[0012] The crushed raw materials enter the smelting furnace, and the magnetic material is heated by the heater in the smelting furnace to melt the magnetic material. Then the magnetic material enters the cooling chamber through the baffle hole, and the transmission gear rotates to drive the intermediate gear to rotate, thereby driving the rotating gear and the intermittent baffle to rotate. The intermittent baffle cooperates with the baffle hole to realize the gap of the magnetic material from the smelting furnace into the cooling chamber. When the liquid material flows out, the oblique mouth of the discharge pipe makes the discharge pipe and the scraper rotate slowly relative to the cooling chamber, so that the magnetic material enters the cooling chamber and is cooled in the cooling chamber, making the magnetic material brittle. Then the push plate electric cylinder contracts, driving the push plate to slide along the cooling chamber, and the cooled and reshaped magnetic material is pushed out by the push plate, and the push plate is pushed open, and the magnetic material enters the air duct.

[0013] Furthermore, the grinding device also includes a fan fixedly installed on the air duct, a push-open plate rotatably installed on the air duct, and the push-open plate closes the air duct under normal conditions, a motor is fixedly installed on the air duct, an output gear is fixedly installed on the motor shaft of the motor, a gear shaft is rotatably installed on the air duct, a lower gear and an upper gear are fixedly installed on the gear shaft, a horizontal transmission belt is wrapped around the lower gear and the transmission gear, a top transmission belt is wrapped around the upper gear and the rotating gear ring, the lower gear is meshed with the output gear, a pressure valve is provided on the fine grinding chamber, two side air jets are fixedly installed on the fine grinding chamber, a horizontal blowing air pipe is fixedly installed on the side air jet, an air inlet pipe is fixedly installed on the horizontal blowing air pipe, the air inlet pipe is connected to an external high-pressure air source, the air inlet pipe is rotatably installed with the rotating elbow, and the upper air jet is fixedly installed on the rotating elbow.

[0014] Furthermore, an outlet cavity is fixedly installed below the fine grinding chamber, a discharge filter plate is fixedly installed in the fine grinding chamber, a plurality of holes are arranged on the discharge filter plate, an outlet plate is slidably installed on the outlet cavity, an outlet electric cylinder is fixedly installed on the fine grinding chamber, the top of the outlet electric cylinder is fixedly installed on the outlet plate, a vertical electric cylinder is fixedly installed on the air duct, a door opening plate is slidably installed on the air duct, and the door opening plate is fixedly installed on the top of the vertical electric cylinder.

[0015] When the push plate pushes out the denatured magnetic material, the vertical electric cylinder contracts to control the door plate to lift up at the same time, the fan starts, and the raw materials in the air duct are blown into the fine grinding chamber, then the vertical electric cylinder extends, driving the door plate to descend, closing the air duct, turning off the fan, and then the air inlet pipe starts to supply high-pressure gas, mainly hydrogen. The two heat exchange plates perform cooling and heating respectively, and the two side jets provide lateral wind force, and the upper jet provides vertical wind force. The rotation of the motor drives the output gear to rotate, thereby driving the lower gear, gear shaft and upper gear to rotate, and the transmission gear is driven to rotate through the horizontal transmission belt, and the upper The gear drives the rotating gear ring to rotate through the top transmission belt, thereby driving the upper air jet to rotate, and finally causing the magnetic raw materials in the inner cavity of the fine grinding chamber to rub and squeeze each other. In the heating area, hydrogen can enter the gap between the raw material molecules, forcing the gap between the molecular raw materials to increase. Then the magnetic raw materials enter the cooling area, and hydrogen is separated from the raw material molecules. Under the continuous in and out of hydrogen and the mutual friction and squeezing of the raw materials, the raw materials are broken into small spherical particles and fall into the outlet cavity through the holes of the discharge filter plate; the outlet electric cylinder contracts to make the outlet plate leave the bottom of the outlet cavity, allowing the finely ground raw materials to fall out.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) the crushing device provided in the present invention first performs preliminary crushing on the magnetic material, and then changes the properties of the magnetic material through the denaturing device, so that the magnetic material becomes brittle, which is convenient for subsequent grinding processing and improves the grinding effect; (2) the grinding device provided in the present invention performs fine grinding on the magnetic material by means of high-pressure hydrogen injection, thereby improving the grinding effect of the magnetic material and preventing the physical grinding method from causing damage to the magnetic material. At the same time, through lateral blowing and continuous longitudinal blowing, the magnetic raw material is broken into spherical small particles under the dual effects of the continuous inflow and outflow of hydrogen and the mutual friction and extrusion of the raw material, and the fine grinding effect is good; (3) when the grinding device provided in the present invention is working, the pressure in the fine grinding chamber is monitored by the pressure valve, and when the pressure is too high, the pressure is released to ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 The structure of the crushing device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 3 The structure of the crushing device of the present invention is shown in FIG. Figure 2 .

[0020] Figure 4 The structure of the crushing device of the present invention is shown in FIG. Figure 3 .

[0021] Figure 5 The structure of the modification device of the present invention is shown in FIG. Figure 1.

[0022] Figure 6 The structure of the modification device of the present invention is shown in FIG. Figure 2 .

[0023] Figure 7 The structure of the modification device of the present invention is shown in FIG. Figure 3 .

[0024] Figure 8 The structure of the grinding device of the present invention is shown in FIG. Figure 1 .

[0025] Fig. 9 The structure of the grinding device of the present invention is shown in FIG. Figure 2 .

[0026] Fig.10 The structure of the grinding device of the present invention is shown in FIG. Figure 3 .

[0027] Figure numerals: 101-feeding box; 102-crushing motor; 103-motor gear; 104-crushing transmission belt; 105-lower transmission wheel; 106-conveyor belt; 107-sliding bar; 108-bottom transmission wheel; 109-vertical transmission belt; 110-outer crushing gear; 111-inner crushing gear; 112-slave crushing gear; 113-outer middle gear; 114-inner middle gear; 115-slave middle gear; 116-left crushing wheel; 117-right crushing wheel; 118-discharging electric cylinder; 119-blocking plate; 120-upper transmission wheel; 201-smelting furnace; 202-cooling chamber; 203-push plate electric cylinder; 204-push plate; 205-transmission gear; 206-intermediate gear; 207-rotating gear Wheel; 208-partition hole; 209-discharge pipe; 210-scraper rod; 211-intermittent baffle; 301-air duct; 302-push plate; 303-fan; 304-motor; 305-output gear; 306-fine grinding chamber; 307-heat exchange plate; 308-gear shaft; 309-upper gear; 310-lower gear; 311-horizontal transmission belt; 312-vertical electric cylinder; 313-door opening plate; 314-inlet pipe; 315-horizontal blowing pipe; 316-rotating gear ring; 317-top transmission belt; 318-rotating elbow; 319-upper jet port; 320-side jet port; 321-pressure valve; 322-export electric cylinder; 323-export plate; 324-discharge filter plate; 325-export cavity. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Example: Reference Figure 1-Figure 10A fine grinding device for producing magnetic materials, comprising a crushing device, the crushing device comprising a feed box 101, the crushing device is used for preliminary crushing of magnetic materials, the crushing device is provided with a modifying device, the modifying device comprises a smelting furnace 201, the modifying device is used for changing the properties of the magnetic material, the modifying device is provided with a grinding device, the grinding device comprises an air duct 301, the air duct 301 is fixedly installed with the smelting furnace 201, and the grinding device is used for fine grinding the magnetic material that becomes brittle flakes after modification; The crushing device includes a left crushing wheel 116 and a right crushing wheel 117 rotatably mounted on the feed box 101, an inner crushing gear 111 is fixedly mounted on the left crushing wheel 116, and a slave crushing gear 112 is fixedly mounted on the right crushing wheel 117, and the inner crushing gear 111 meshes with the slave crushing gear 112; The modification device includes a cooling chamber 202 fixedly installed below the smelting furnace 201, a rotating gear 207 is rotatably installed on the smelting furnace 201, a discharge pipe 209 is rotatably installed on the cooling chamber 202, and an intermittent baffle 211 is fixedly installed on the rotating gear 207; The grinding device includes a fine grinding chamber 306 fixedly mounted on the air duct 301 , on which two heat exchange plates 307 are provided for cooling and heating respectively, a rotating ring gear 316 is rotatably mounted on the fine grinding chamber 306 , on which a rotating elbow 318 is eccentrically fixedly mounted.

[0030] like Figure 2-Figure 4 As shown, the crushing device also includes a crushing motor 102 arranged next to the feed box 101, a motor gear 103 is fixedly installed on the motor shaft of the crushing motor 102, an outer crushing gear 110 is fixedly installed on the inner crushing gear 111, a crushing transmission belt 104 is wound around the outer crushing gear 110 and the motor gear 103, a middle gear 115 is fixedly installed on the right crushing wheel 117, an inner middle gear 114 and an outer middle gear 113 are fixedly installed on the left crushing wheel 116, and the inner middle gear 114 is meshed with the middle gear 115.

[0031] like Figure 2-Figure 4 As shown, a lower transmission wheel 105 is rotatably mounted on the feed box 101, a bottom transmission wheel 108 is fixedly mounted on the lower transmission wheel 105, a vertical transmission belt 109 is wound around the outer middle gear 113 and the bottom transmission wheel 108, an upper transmission wheel 120 is rotatably mounted on the smelting furnace 201, a conveyor belt 106 is wound around the upper transmission wheel 120 and the lower transmission wheel 105, and a plurality of toggle bars 107 are arranged on the conveyor belt 106.

[0032] like Figure 2-Figure 4 As shown, a discharging electric cylinder 118 is fixedly installed on the feed box 101 , and a baffle plate 119 is slidably installed on the bottom of the feed box 101 , and the baffle plate 119 is fixedly installed on the top of the discharging electric cylinder 118 .

[0033] The rotation of the crushing motor 102 drives the motor gear 103 to rotate, and drives the outer crushing gear 110 and the inner crushing gear 111 to rotate through the crushing transmission belt 104, thereby driving the left crushing wheel 116 to rotate, and the inner crushing gear 111 drives the slave crushing gear 112 and the right crushing wheel 117 to rotate. The left crushing wheel 116 and the right crushing wheel 117 rotate in opposite directions. The left crushing wheel 116 drives the inner middle gear 114 and the outer middle gear 113 to rotate, and drives the bottom transmission wheel 108 to rotate through the vertical transmission belt 109, thereby driving the lower transmission wheel 105 to move.

[0034] The magnetic material is put into the feed box 101 from above, and is crushed by the left crushing wheel 116 and the right crushing wheel 117. The crushed magnetic material falls onto the baffle plate 119. When a certain amount of magnetic material accumulates on the baffle plate 119, the discharge electric cylinder 118 extends to drive the baffle plate 119 to slide along the feed box 101. The magnetic material on the baffle plate 119 falls onto the conveyor belt 106, and is transported to the smelting furnace 201 through the conveyor belt 106.

[0035] like Figure 5-Figure 7 As shown, the modification device also includes a transfer gear 205 and an intermediate gear 206 rotatably mounted on the cooling chamber 202, the transfer gear 205 is meshed with the intermediate gear 206, the intermediate gear 206 is meshed with the rotating gear 207, a plurality of baffle holes 208 are arranged in the smelting furnace 201, and only liquid raw materials and small-sized raw materials are allowed to pass through, a scraper rod 210 is fixedly mounted on the discharge pipe 209, the tail of the discharge pipe 209 is an oblique mouth, and the discharge pipe 209 slowly rotates relative to the cooling chamber 202 when the raw materials flow out.

[0036] like Figure 5-Figure 7 As shown, a push plate 204 is slidably mounted on the cooling chamber 202 , a push plate electric cylinder 203 is fixedly mounted on the cooling chamber 202 , and a push plate 204 is fixedly mounted on the top of the push plate electric cylinder 203 .

[0037] like Figure 5-Figure 7 As shown, a heater is provided in the smelting furnace 201 , and a cooler is provided in the cooling chamber 202 .

[0038] The crushed raw materials enter the smelting furnace 201, and the magnetic material is heated by the heater in the smelting furnace 201 to melt the magnetic material. Then, the magnetic material enters the cooling chamber 202 through the baffle hole 208. The transmission gear 205 rotates to drive the intermediate gear 206 to rotate, thereby driving the rotating gear 207 and the intermittent baffle 211 to rotate. The intermittent baffle 211 cooperates with the baffle hole 208 to achieve the gap of the magnetic material from the smelting furnace 201 to enter the cooling chamber 202. When the material liquid flows out, the oblique mouth of the discharge pipe 209 makes the discharge pipe 209 and the scraper 210 rotate slowly relative to the cooling chamber 202, so that the magnetic material enters the cooling chamber 202, and is cooled in the cooling chamber 202, making the magnetic material brittle. Then, the push plate electric cylinder 203 contracts, driving the push plate 204 to slide along the cooling chamber 202, and the cooled and reshaped magnetic material is pushed out by the push plate 204, and the push plate 302 is pushed open, and the magnetic material enters the air duct 301.

[0039] like Figure 8-Figure 10 As shown, the grinding device also includes a fan 303 fixedly mounted on the air duct 301, a push plate 302 is rotatably mounted on the air duct 301, and the push plate 302 closes the air duct 301 under normal conditions, a motor 304 is fixedly mounted on the air duct 301, an output gear 305 is fixedly mounted on the motor shaft of the motor 304, a gear shaft 308 is rotatably mounted on the air duct 301, a lower gear 310 and an upper gear 309 are fixedly mounted on the gear shaft 308, a horizontal transmission belt 311 is wound around the lower gear 310 and the transmission gear 205, and the upper gear 309 is fixedly mounted on the gear shaft 308. A top transmission belt 317 is wound around the wheel 309 and the rotating ring gear 316, the lower gear 310 is meshed with the output gear 305, a pressure valve 321 is provided on the fine grinding chamber 306, two side air jets 320 are fixedly installed on the fine grinding chamber 306, a transverse air pipe 315 is fixedly installed on the side air jets 320, an air intake pipe 314 is fixedly installed on the transverse air pipe 315, the air intake pipe 314 is connected to an external high-pressure air source, the air intake pipe 314 is rotatably installed with the rotating elbow 318, and an upper air jet 319 is fixedly installed on the rotating elbow 318.

[0040] like Figure 8-Figure 10 As shown, an outlet cavity 325 is fixedly installed below the fine grinding chamber 306, a discharge filter plate 324 is fixedly installed in the fine grinding chamber 306, a plurality of holes are provided on the discharge filter plate 324, an outlet plate 323 is slidably installed on the outlet cavity 325, an outlet electric cylinder 322 is fixedly installed on the fine grinding chamber 306, the top of the outlet electric cylinder 322 is fixedly installed on the outlet plate 323, a vertical electric cylinder 312 is fixedly installed on the air duct 301, a door opening plate 313 is slidably installed on the air duct 301, and the door opening plate 313 is fixedly installed on the top of the vertical electric cylinder 312.

[0041] When the push plate 204 pushes out the denatured magnetic material, the vertical electric cylinder 312 contracts to control the door plate 313 to lift up at the same time, and the fan 303 starts to blow the raw materials in the air duct 301 into the fine grinding chamber 306. Then the vertical electric cylinder 312 extends, driving the door plate 313 to descend, closing the air duct 301, and the fan 303 is turned off. Then the air inlet pipe 314 starts to supply high-pressure gas, and the gas is mainly hydrogen. The two heat exchange plates 307 perform cooling and heating respectively. The two side jets 320 provide lateral wind force, and the upper jet 319 provides vertical wind force. The motor 304 rotates to drive the output gear 305 to rotate, thereby driving the lower gear 310, the gear shaft 308 and the upper gear 309 to rotate, and through the horizontal transmission The belt 311 drives the transmission gear 205 to rotate, and the upper gear 309 drives the rotating gear ring 316 to rotate through the top transmission belt 317, thereby driving the upper air jet 319 to rotate, and finally the magnetic raw materials in the inner cavity of the fine grinding chamber 306 are rubbed and squeezed against each other. In the heating area, hydrogen can enter the gap between the raw material molecules, forcing the gap between the molecular raw materials to increase. Then the magnetic raw materials enter the cooling area, and hydrogen is separated from the raw material molecules. Under the continuous in and out of hydrogen and the mutual friction and squeezing of the raw materials, the raw materials are broken into small spherical particles and fall into the outlet cavity 325 through the holes of the discharge filter plate 324; the outlet electric cylinder 322 contracts to make the outlet plate 323 leave the bottom of the outlet cavity 325, so that the finely ground raw materials fall out.

[0042] The working principle of a fine grinding device for magnetic material production disclosed in the present invention is as follows: the crushing motor 102 rotates to drive the motor gear 103 to rotate, and the outer crushing gear 110 and the inner crushing gear 111 are driven to rotate through the crushing transmission belt 104, thereby driving the left crushing wheel 116 to rotate, and the inner crushing gear 111 drives the slave crushing gear 112 and the right crushing wheel 117 to rotate, and the left crushing wheel 116 and the right crushing wheel 117 rotate in opposite directions, and the left crushing wheel 116 drives the inner middle gear 114 and the outer middle gear 113 to rotate, and drives the bottom transmission wheel 108 to rotate through the vertical transmission belt 109, thereby driving the lower transmission wheel 105 to move. The magnetic material is put into the feed box 101 from above, and is crushed by the left crushing wheel 116 and the right crushing wheel 117. The crushed magnetic material falls onto the baffle plate 119. When a certain amount of magnetic material accumulates on the baffle plate 119, the discharge electric cylinder 118 extends to drive the baffle plate 119 to slide along the feed box 101. The magnetic material on the baffle plate 119 falls onto the conveyor belt 106, and is transported to the smelting furnace 201 through the conveyor belt 106. The crushed raw materials enter the smelting furnace 201, and the magnetic material is heated by the heater in the smelting furnace 201 to melt the magnetic material. Then, the magnetic material enters the cooling chamber 202 through the baffle hole 208. The transmission gear 205 rotates to drive the intermediate gear 206 to rotate, thereby driving the rotating gear 207 and the intermittent baffle 211 to rotate. The intermittent baffle 211 cooperates with the baffle hole 208 to achieve the gap of the magnetic material from the smelting furnace 201 to enter the cooling chamber 202. When the material liquid flows out, the oblique mouth of the discharge pipe 209 makes the discharge pipe 209 and the scraper 210 rotate slowly relative to the cooling chamber 202, so that the magnetic material enters the cooling chamber 202, and is cooled in the cooling chamber 202, making the magnetic material brittle. Then, the push plate electric cylinder 203 contracts, driving the push plate 204 to slide along the cooling chamber 202, and the cooled and reshaped magnetic material is pushed out by the push plate 204, and the push plate 302 is pushed open, and the magnetic material enters the air duct 301.When the push plate 204 pushes out the denatured magnetic material, the vertical electric cylinder 312 contracts to control the door plate 313 to lift up at the same time, and the fan 303 starts to blow the raw materials in the air duct 301 into the fine grinding chamber 306. Then the vertical electric cylinder 312 extends, driving the door plate 313 to descend, closing the air duct 301, and the fan 303 is turned off. Then the air inlet pipe 314 starts to supply high-pressure gas, and the gas is mainly hydrogen. The two heat exchange plates 307 perform cooling and heating respectively. The two side jets 320 provide lateral wind force, and the upper jet 319 provides vertical wind force. The motor 304 rotates to drive the output gear 305 to rotate, thereby driving the lower gear 310, the gear shaft 308 and the upper gear 309 to rotate, and through the horizontal transmission The belt 311 drives the transmission gear 205 to rotate, and the upper gear 309 drives the rotating gear ring 316 to rotate through the top transmission belt 317, thereby driving the upper air jet 319 to rotate, and finally the magnetic raw materials in the inner cavity of the fine grinding chamber 306 are rubbed and squeezed against each other. In the heating area, hydrogen can enter the gap between the raw material molecules, forcing the gap between the molecular raw materials to increase. Then the magnetic raw materials enter the cooling area, and hydrogen is separated from the raw material molecules. Under the continuous in and out of hydrogen and the mutual friction and squeezing of the raw materials, the raw materials are broken into small spherical particles and fall into the outlet cavity 325 through the holes of the discharge filter plate 324; the outlet electric cylinder 322 contracts to make the outlet plate 323 leave the bottom of the outlet cavity 325, so that the finely ground raw materials fall out.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fine grinding device for producing magnetic materials, comprising a crushing device, characterized in that: The crushing device comprises a feed box (101), the crushing device is used to preliminarily crush the magnetic material, the crushing device is provided with a modifying device, the modifying device comprises a smelting furnace (201), the modifying device is used to change the properties of the magnetic material, the modifying device is provided with a grinding device, the grinding device comprises an air duct (301), the air duct (301) is fixedly installed with the smelting furnace (201), and the grinding device is used to finely grind the magnetic material that becomes brittle flakes after modification; The crushing device comprises a left crushing wheel (116) and a right crushing wheel (117) rotatably mounted on the feed box (101); an inner crushing gear (111) is fixedly mounted on the left crushing wheel (116); a secondary crushing gear (112) is fixedly mounted on the right crushing wheel (117); the inner crushing gear (111) meshes with the secondary crushing gear (112); The modification device comprises a cooling chamber (202) fixedly mounted below the smelting furnace (201); a rotating gear (207) is rotatably mounted on the smelting furnace (201); a discharge pipe (209) is rotatably mounted on the cooling chamber (202); and an intermittent baffle (211) is fixedly mounted on the rotating gear (207); The grinding device comprises a fine grinding chamber (306) fixedly mounted on the air duct (301); two heat exchange plates (307) are arranged on the fine grinding chamber (306) for cooling and heating respectively; a rotating gear ring (316) is rotatably mounted on the fine grinding chamber (306); and a rotating elbow (318) is eccentrically fixedly mounted on the rotating gear ring (316).

2. A fine grinding device for producing magnetic materials according to claim 1, characterized in that: The crushing device further comprises a crushing motor (102) arranged beside the feed box (101); a motor gear (103) is fixedly mounted on the motor shaft of the crushing motor (102); an outer crushing gear (110) is fixedly mounted on the inner crushing gear (111); a crushing transmission belt (104) is wound around the outer crushing gear (110) and the motor gear (103); a middle gear (115) is fixedly mounted on the right crushing wheel (117); an inner middle gear (114) and an outer middle gear (113) are fixedly mounted on the left crushing wheel (116); and the inner middle gear (114) meshes with the middle gear (115).

3. A fine grinding device for producing magnetic materials according to claim 2, characterized in that: A lower transmission wheel (105) is rotatably mounted on the feed box (101), a bottom transmission wheel (108) is fixedly mounted on the lower transmission wheel (105), a vertical transmission belt (109) is wound around the outer middle gear (113) and the bottom transmission wheel (108), an upper transmission wheel (120) is rotatably mounted on the smelting furnace (201), a conveyor belt (106) is wound around the upper transmission wheel (120) and the lower transmission wheel (105), and a plurality of shifting bars (107) are arranged on the conveyor belt (106).

4. A fine grinding device for producing magnetic materials according to claim 2, characterized in that: A discharge electric cylinder (118) is fixedly mounted on the feed box (101), a baffle plate (119) is slidably mounted on the bottom of the feed box (101), and the baffle plate (119) is fixedly mounted on the top of the discharge electric cylinder (118).

5. The fine grinding device for producing magnetic materials according to claim 1, characterized in that: The modification device also includes a transmission gear (205) and an intermediate gear (206) rotatably mounted on the cooling chamber (202); the transmission gear (205) meshes with the intermediate gear (206); the intermediate gear (206) meshes with the rotating gear (207); a plurality of baffle holes (208) are provided in the smelting furnace (201) to allow only liquid raw materials and small-sized raw materials to pass through; a scraper rod (210) is fixedly mounted on the discharge pipe (209); the tail of the discharge pipe (209) is an oblique opening, and the discharge pipe (209) slowly rotates relative to the cooling chamber (202) when the raw materials flow out of the discharge pipe (209).

6. A fine grinding device for producing magnetic materials according to claim 1, characterized in that: A push plate (204) is slidably mounted on the cooling chamber (202), a push plate electric cylinder (203) is fixedly mounted on the cooling chamber (202), and a push plate (204) is fixedly mounted on the top of the push plate electric cylinder (203).

7. A fine grinding device for producing magnetic materials according to claim 1, characterized in that: A heater is provided in the smelting furnace (201), and a cooler is provided in the cooling chamber (202).

8. The fine grinding device for producing magnetic materials according to claim 1, characterized in that: The grinding device further comprises a fan (303) fixedly mounted on the air duct (301); a push plate (302) is rotatably mounted on the air duct (301); the push plate (302) closes the air duct (301) in a normal state; a motor (304) is fixedly mounted on the air duct (301); an output gear (305) is fixedly mounted on the motor shaft of the motor (304); a gear shaft (308) is rotatably mounted on the air duct (301); a lower gear (310) and an upper gear (309) are fixedly mounted on the gear shaft (308); a transverse transmission belt (311) is wound around the lower gear (310) and the transmission gear (205); and an output gear (305) is fixedly mounted on the motor shaft of the motor (304). A top transmission belt (317) is wound around the wheel (309) and the rotating gear ring (316); the lower gear (310) is meshed with the output gear (305); a pressure valve (321) is provided on the fine grinding chamber (306); two side air jets (320) are fixedly installed on the fine grinding chamber (306); a transverse air blowing pipe (315) is fixedly installed on the side air jets (320); an air intake pipe (314) is fixedly installed on the transverse air blowing pipe (315); the air intake pipe (314) is connected to an external high-pressure air source; the air intake pipe (314) is rotatably installed with a rotating bent pipe (318); and an upper air jet (319) is fixedly installed on the rotating bent pipe (318).

9. A fine grinding device for producing magnetic materials according to claim 8, characterized in that: An outlet cavity (325) is fixedly installed below the fine grinding chamber (306), a discharge filter plate (324) is fixedly installed in the fine grinding chamber (306), a plurality of holes are provided on the discharge filter plate (324), an outlet plate (323) is slidably installed on the outlet cavity (325), an outlet electric cylinder (322) is fixedly installed on the fine grinding chamber (306), the top of the outlet electric cylinder (322) is fixedly installed on the outlet plate (323), a vertical electric cylinder (312) is fixedly installed on the air duct (301), a door opening plate (313) is slidably installed on the air duct (301), and the door opening plate (313) is fixedly installed on the top of the vertical electric cylinder (312).

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