Crushing and processing equipment for NdFeB thin strip alloy sheet and processing technology thereof

Abstract

The invention relates to the technical field related to the crushing of NdFeB thin strip alloy sheets, and discloses a crushing and processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof. The equipment comprises a box body, a furnace body is provided at the upper end of the box body, a control box is provided outside the box body, a crushing assembly is provided at the upper part of the box body, a discharge funnel is provided on the upper side of the inner part of the box body, a discharge pipe is provided on the lower side of the discharge funnel, and a cooling assembly is provided at the lower part of the box body. The equipment can guide and move the falling NdFeB thin strip alloy fragments to both sides through the inclined arrangement of the upper tip of the first guide block and the two paddles, so as to facilitate the diffusion of the NdFeB thin strip alloy fragments in ethanol. Then, the top plate is repeatedly moved up and down and cooperated with the sliding contact of the inclined surfaces on both sides of the upper end of the top plate and the two first protrusions close to each other, so that the two paddles are swung back and forth, which is conducive to paddle and disperse the falling NdFeB thin strip alloy fragments to both sides, thereby ensuring the cooling efficiency of the NdFeB thin strip alloy fragments.

Description

Technical Field

[0001] The present invention belongs to the technical field related to the crushing of NdFeB thin strip alloy sheets, and more specifically, relates to a crushing and processing device for NdFeB thin strip alloy sheets and a processing technology thereof. Background Art

[0002] Neodymium iron boron (NdFeB), a rare earth permanent magnet material, is an important magnetic material. It has excellent magnetic properties and is known as the "king of magnets". It is widely used in modern industry and electronic technology. In the production of NdFeB, it is first smelted to form NdFeB thin ribbon alloy fragments, and then the NdFeB thin ribbon alloy fragments are processed into powder. Finally, the NdFeB thin ribbon alloy powder is aggregated and formed, and then sintered, and finally cut into the required size. In the production process of NdFeB thin ribbon alloy fragments, the raw materials are usually first smelted into liquid alloy liquid, and then refined and cooled to form large alloy sheets. The alloy sheets are then crushed by two mutually cooperating crushing rollers to obtain fragmented NdFeB thin ribbon alloy fragments. However, the crushing of NdFeB thin ribbon alloy sheets in the existing technology has the following defects:

[0003] In the prior art, in the process of producing NdFeB thin ribbon alloy fragments using crushing processing equipment for NdFeB thin ribbon alloy sheets, argon protective gas is introduced into the furnace body to prevent the NdFeB thin ribbon alloy fragments from being oxidized. In order to prevent the high-temperature alloy sheets from being oxidized during the crushing process, the crushing rollers are also in a protective environment of argon. When the high-temperature alloy sheets are crushed into NdFeB thin ribbon alloy fragments, a small amount of alloy dust will be generated. This dust will be discharged with the argon gas and flow outward, easily causing environmental pollution.

[0004] In the prior art, when crushing NdFeB thin ribbon alloy sheets with crushing processing equipment, the temperature of the NdFeB thin ribbon alloy sheets is usually over 200°C, which causes the NdFeB thin ribbon alloy sheets discharged from the furnace to be in a high temperature state, which easily leads to oxidation of the NdFeB thin ribbon alloy sheets and causes the quality of the NdFeB thin ribbon alloy sheets to deteriorate. Therefore, it is necessary to cool the crushed NdFeB thin ribbon alloy sheets;

[0005] In the prior art, when crushing and processing equipment for NdFeB alloy ribbons, ethanol is typically used to cool the crushed NdFeB alloy ribbons. However, the crushed NdFeB alloy ribbons move directly downward under the influence of gravity. As a result, the contact points between the crushed NdFeB alloy ribbons and the ethanol are too concentrated, which easily causes the temperature of some of the ethanol to rise rapidly, thus affecting the cooling effect of the crushed NdFeB alloy ribbons.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a crushing processing equipment and processing technology for NdFeB thin strip alloy sheets are provided, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0007] The present invention provides a crushing and processing device for NdFeB thin strip alloy sheets and a processing technology thereof, which are used to overcome the above-mentioned defects in the prior art.

[0008] The purpose and effect of the crushing and processing equipment for NdFeB thin strip alloy sheets and the processing technology thereof of the present invention are achieved by the following specific technical means:

[0009] A crushing and processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof, comprising a box body, a furnace body is provided at the upper end of the box body, a control box is provided on the outside of the box body, a crushing assembly is provided on the upper part of the box body, a discharge funnel is fixedly provided on the upper side of the interior of the box body, a discharge pipe is provided on the lower side of the discharge funnel, a cooling assembly is provided on one side of the lower part of the box body, a collection box is provided on the other side of the lower part of the box body, a movable block is provided for sliding inside the box body, an electric telescopic rod is provided on the lower side of the movable block, and an electromagnet is provided on the protruding end of the electric telescopic rod; the cooling assembly comprises a processing box, which is located at the lower side of the interior of the box body, a first movable plate is provided obliquely inside the processing box, and the interior of the processing box is separated by the first movable plate. The cam is provided with a first end for camming the sliding door, and the second end for camming the sliding door is provided with a first end for camming the sliding door.

[0010] A further technical solution is that two first protrusions are fixed on the side where the two sliders are close to each other, and a number of second protrusions are spaced apart on the two inclined surfaces at the upper end of the top plate, and the outer side of each second protrusion is in sliding contact with the outer side of the first protrusion, and a solenoid valve is provided on one side of the processing tank.

[0011] A further technical solution is that a fixed frame is provided on the lower side of the interior of the first cooling chamber, a piston plate is provided vertically slidingly inside the fixed frame, a shell is provided on the upper side of the piston plate, the interior of the shell is connected to the lower side of the interior of the fixed frame and is provided with a first connecting port, the upper end of the shell is fixedly connected to the lower side of the first movable plate, and the interior of the shell is connected to the interior of the water bag and is provided with a second connecting port.

[0012] A further technical solution is that two pressure plates are respectively slidably provided on both sides of the interior of the shell, two first springs are provided between the sides of the two pressure plates that are close to each other, two push rods are respectively fixed with the sides of the two pressure plates that are away from each other, and two second guide blocks are respectively fixed with two sides of the upper part of the fixed frame, and the sides of the two second guide blocks that are close to each other are both inclined surfaces, and the ends of the two push rods that are away from each other are in sliding contact with the inclined surfaces of the two second guide blocks.

[0013] A further technical solution is that a number of grooves are provided on the inclined surfaces of the two second guide blocks that are close to each other, a motor is provided on one side of the interior of the first cooling chamber, an elliptical plate is provided at the output end of the motor, a round block is fixedly provided on one side of the elliptical plate, a push rod is fixedly provided on the lower side of the inclined upper end of the first movable plate, a movable frame is fixedly provided at the lower end of the push rod, and the round block slides horizontally inside the movable frame.

[0014] A further technical solution is that two cooling boxes are respectively provided on both sides of the processing box, and a second movable plate is provided vertically slidingly inside each cooling box. The interior of each cooling box is separated by the second movable plate into a hydraulic chamber and a second cooling chamber, and the interior of the hydraulic chamber is connected to the interior of the first cooling chamber by a third connection port.

[0015] A further technical solution is that a second spring is connected between the lower side of the second movable plate and the lower side of the interior of the hydraulic chamber, a plurality of first baffles are fixedly provided at intervals on the upper side of the interior of the second cooling chamber, a plurality of pairs of second baffles are provided at intervals on the upper side of the second movable plate, an S-shaped channel is formed inside the second cooling chamber by staggered distribution of a plurality of first baffles and a plurality of pairs of second baffles, an inlet valve is provided at one end of the S-shaped channel in the second cooling chamber, and an outlet valve is provided at the other end of the S-shaped channel in the second cooling chamber.

[0016] A further technical solution is that two T-shaped sliders are fixed at the lower end of each pair of the second baffles, each pair of the T-shaped sliders slides inside the second movable plate, a third spring is connected between each pair of the T-shaped sliders, and a number of guide plates are fixed on the upper side of the interior of the second cooling chamber, and the two sides of the lower end of each guide plate are in sliding contact with the inclined surface on one side of the upper end of each pair of the second baffles.

[0017] A further technical solution is that two first stepper motors are symmetrically provided at the lower part of the box body, and two screw rods are respectively provided at the output ends of the two first stepper motors, and the two ends of the movable block are respectively in contact with the outer threads of the two screw rods, and a foam plastic ball layer is provided on the upper side of the ethanol in the processing tank, and the lower end of the discharge pipe is located below the foam plastic ball layer. The lower end face of the electromagnet is an inclined surface, and the lower end face of the electromagnet is parallel to the upper surface of the first movable plate; the crushing assembly includes two rotating shafts, and the two rotating shafts are symmetrically distributed on the upper side of the interior of the box body, and two crushing rollers are respectively provided on the outside of the two rotating shafts. A second stepper motor is installed on one side of the outside of the box body, and the output end of the second stepper motor is connected to one end of one of the rotating shafts through a coupling, and two gears are respectively provided on the outside of the other end of the two rotating shafts, and the outsides of the two gears are meshed with each other.

[0018] A crushing process for NdFeB thin strip alloy sheets, comprising the following steps:

[0019] S1: Crushing: NdFeB thin strip alloy sheets are placed into the crushing assembly, and the NdFeB thin strip alloy sheets are crushed by the rotation of two crushing rollers. Argon protective gas is introduced into the crushing assembly to prevent the high-temperature alloy sheets from being oxidized during the crushing process.

[0020] S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. The ethanol not only washes the exhaust gas to prevent the alloy dust in the exhaust gas from being discharged into the air, but also cools the NdFeB alloy ribbon fragments and isolates them from the air, thereby effectively preventing the NdFeB alloy ribbon fragments from being oxidized.

[0021] S3: Dispersion, moving the iron-boron alloy ribbon fragments falling into the ethanol to both sides, so as to make the iron-boron alloy ribbon fragments spread in the ethanol and prevent some ethanol from heating up too quickly;

[0022] S4: heat exchange, using the coolant to pass into the cooling box to exchange heat with ethanol to reduce the temperature of the ethanol, thereby ensuring the cooling efficiency of the iron-boron thin strip alloy fragments;

[0023] S5: Transportation: Use the transportation mechanism to transport the cooled iron-boron thin strip alloy fragments in the processing box to the collection box for temporary storage, so as to facilitate subsequent centralized processing.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention discloses a crushing and processing device for NdFeB thin ribbon alloy sheets and a processing technology thereof. Through the arrangement of a first guide block and a paddle, NdFeB thin ribbon alloy fragments are dropped into a processing tank through a feed pipe. The upper tip of the first guide block and the two paddles are arranged obliquely, thereby guiding the dropped NdFeB thin ribbon alloy fragments to move in two directions, so as to facilitate the diffusion of the NdFeB thin ribbon alloy fragments in ethanol, prevent some ethanol from heating too quickly, and thus ensure the cooling efficiency of the NdFeB thin ribbon alloy fragments. Furthermore, through the arrangement of a slider, an elastic member, and a top plate, the top plate repeatedly moves up and down, and the top plate slides in contact with the inclined surfaces on both sides of the top plate that are close to the two first protrusions, respectively, so that the two paddles swing back and forth, which is conducive to dispersing the dropped NdFeB thin ribbon alloy fragments to both sides, thereby improving the effect of diffusing and dropping the NdFeB thin ribbon alloy fragments. Finally, through the arrangement of the first protrusion and the second protrusion, the top plate moves up and down, driving several pairs of second protrusions to move up and down. Through the sliding contact between the outer sides of the first protrusion and the outer sides of the second protrusion, under the contact and extrusion of the first protrusion and the second protrusion, the two paddles swing back and forth in a large range and in a small range at the same time, which is conducive to further paddle and disperse the fallen NdFeB thin strip alloy fragments to both sides, and stir the ethanol to avoid local ethanol heating too fast, so that the ethanol is heated evenly, thereby maintaining the cooling efficiency of the NdFeB thin strip alloy fragments.

[0026] The present invention provides a crushing and processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof. Through the arrangement of a piston plate, a shell, a water bag and a rotating plate, the piston plate moves downward to squeeze the coolant on the lower side of the fixed frame into the pressure plate through the first connecting port, so that the coolant in the pressure plate enters the water bag through the second connecting port. The expansion of the water bag pushes the rotating plate to swing, so as to increase the inclination angle of the rotating plate, which is beneficial for the NdFeB thin strip alloy fragments that fall onto the rotating plate to move downward and tilted, and is beneficial for collecting and storing the cooled NdFeB thin strip alloy fragments; and the up and down movement of the first movable plate drives the up and down movement of the shell and the piston plate, so that the rotating plate swings back and forth, so as to shake the NdFeB thin strip alloy fragments and move them downward and tilted, and increase the swing amplitude of the two paddle plates, so as to fully cool the NdFeB thin strip alloy fragments. Then, through the arrangement of the second guide block, the groove and the pressure plate, the shell moves downward, driving the two push rods to move downward. The two push rods move away from each other and slide into the inclined surfaces on one side of the two second guide blocks that are close to each other. Under the guidance of the two second guide blocks, the two push rods and the pressure plate are brought close to each other. The two pressure plates are close to each other, and the coolant in the shell enters the water bag through the second connecting port. The water bag continues to expand, further increasing the inclination angle of the rotating plate, which is conducive to making the iron-boron thin strip alloy fragments falling on the rotating plate move downward in an inclined manner. Finally, through the arrangement of the grooves and the first spring, under the guiding action of several pairs of grooves and the elastic force of the first spring, the two pressure plates are made to approach and move away from each other alternately, so that the two pressure plates are made to approach each other by a large amplitude and move away from each other by a small amplitude at the same time, so that the rotating plate is made to change its angle by a large amplitude and shake up and down by a small amplitude at the same time, so as to shake and tilt the iron-boron thin strip alloy fragments downward; and further, the two shifting plates are made to swing back and forth by a large amplitude and swing back and forth by a small amplitude at the same time, which is conducive to shifting and dispersing the NdFeB thin strip alloy fragments that fall to the sides, and further improving the effect of diffusing and falling the NdFeB thin strip alloy fragments.

[0027] The present invention provides a crushing and processing device for NdFeB thin strip alloy flakes and a processing technology thereof. Coolant enters the second cooling chamber through an inlet valve by means of a first baffle and a second baffle. The plurality of first baffles and a plurality of pairs of second baffles are staggered, thereby forming an S-shaped channel in the second cooling chamber. This extends the travel of the coolant in the second cooling chamber, facilitating heat exchange and cooling of ethanol in the processing tank by the coolant in the second cooling chamber, thereby maintaining the cooling effect of the ethanol on the NdFeB thin strip alloy flakes. Furthermore, by means of a second movable plate and a guide plate, the first movable plate moves up and down, and under the elastic force of a second spring, the second movable plate moves up and down, thereby promoting the flow of coolant in the second cooling chamber. Furthermore, under the elastic force of a third spring, the two second baffles are alternately moved away from and toward each other, thereby stirring the coolant in the second cooling chamber, promoting uniformity of the coolant temperature in the second cooling chamber, and utilizing the coolant in the second cooling chamber to exchange heat and cool the ethanol, thereby reducing the temperature of the ethanol and ensuring cooling efficiency of the NdFeB thin strip alloy flakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] The present invention will be further described below with reference to the accompanying drawings and examples.

[0030] Figure 1 It is a first isometric structural schematic diagram of the present invention;

[0031] Figure 2 It is a second isometric structural diagram of the present invention;

[0032] Figure 3 It is a front view structural schematic diagram of the present invention;

[0033] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0034] Figure 5 for Figure 4 A schematic diagram of the structure of the partial enlarged view at C in the middle;

[0035] Figure 6 for Figure 5 The schematic diagram of the structure of the local enlarged view at E in the middle;

[0036] Figure 7 for Figure 4The schematic diagram of the structure of the local enlarged view at D in the middle;

[0037] Figure 8 for Figure 7 The schematic diagram of the structure of the partial enlarged view at F in the middle;

[0038] Figure 9 3 is a schematic diagram of the cross-sectional structure at BB;

[0039] Figure 10 for Figure 9 A schematic diagram of the structure of the local enlarged view at G in the middle;

[0040] Figure 11 for Figure 9 Schematic diagram of the structure of the local enlarged view at H in the middle.

[0041] Description of reference numerals:

[0042] Box body 10, furnace body 11, control box 13, second stepper motor 14, rotating shaft 15, crushing roller 16, gear 17, discharge funnel 18, discharge pipe 19, processing box 20, first movable plate 21, processing tank 22, first cooling chamber 23, foam plastic ball layer 24, solenoid valve 25, collection box 26, first stepper motor 27, screw rod 28, movable block 29, electric telescopic rod 30, electromagnet 31, first guide block 32, dial plate 33, slider 34, elastic member 35, top plate 36, elastic block 37, first protrusion 38, second protrusion 39, rotating Movable plate 40, water bag 41, motor 42, elliptical plate 43, round block 44, movable frame 45, push rod 46, fixed frame 47, piston plate 48, housing 49, first connecting port 50, pressure plate 51, first spring 52, second connecting port 53, push rod 54, second guide block 55, groove 56, cooling box 57, inlet valve 58, outlet valve 59, second movable plate 60, second cooling chamber 61, hydraulic chamber 62, first baffle 63, second baffle 64, second spring 65, T-shaped slider 66, third spring 67, guide plate 68, third connecting port 69. DETAILED DESCRIPTION

[0043] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0044] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] As attached Figure 1 To the attached Figure 11 As shown:

[0047] The present invention provides crushing processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof.

[0048] Refer to the attached Figure 1 To the attached Figure 11, including a box body 10, a furnace body 11 is provided at the upper end of the box body 10, a control box 13 is provided on the outside of the box body 10, a crushing assembly is provided on the upper part of the box body 10, a discharge funnel 18 is fixedly provided on the upper side of the interior of the box body 10, a discharge pipe 19 is provided on the lower side of the discharge funnel 18, a cooling assembly is provided on one side of the lower part of the box body 10, a collecting box 26 is provided on the other side of the lower part of the box body 10, a movable block 29 is provided for sliding inside the box body 10, an electric telescopic rod 30 is provided on the lower side of the movable block 29, and an electromagnet 31 is provided on the protruding end of the electric telescopic rod 30; the cooling assembly includes a processing box 20, the processing box 20 is located on the lower side of the interior of the box body 10, and a first movable plate 21 is provided inside the processing box 20, and the interior of the processing box 20 is separated by the first movable plate 21 with a processing tank 22 and a first cooling chamber 23. The interior of the processing tank 22 is filled with ethanol, and the lower end of the discharge pipe 19 extends into the interior of the processing tank 22. A first guide block 32 is fixed between the two side walls of the processing tank 22, and two dial plates 33 are rotatably provided on both sides of the first guide block 32. A rotating plate 40 is rotatably provided on the upper side of the first movable plate 21, and an elastic block 37 is provided on the upper side of the rotating plate 40. A top plate 36 is provided on the upper side of the elastic block 37. Two sliders 34 are respectively slidably provided in the two side walls of the first guide block 32, and two elastic members 35 are respectively connected between the ends of the two sliders 34 away from each other and one side of the two dial plates 33. The sides of the two sliders 34 approaching each other are respectively in sliding contact with the inclined surfaces on both sides of the upper end of the top plate 36, and a water bag 41 is connected between the lower side of the inclined upper end of the rotating plate 40 and the first movable plate 21.

[0049] Preferably, refer to the attached Figure 4 To the attached Figure 6 Two first protrusions 38 are fixed on the side where the two sliders 34 are close to each other, and a number of second protrusions 39 are spaced apart on the two inclined surfaces at the upper end of the top plate 36. The outer side of each second protrusion 39 is in sliding contact with the outer side of the first protrusion 38. A solenoid valve 25 is provided on one side of the processing tank 22.

[0050] Preferably, refer to the attached Figure 7 To the attached Figure 8 A fixed frame 47 is provided on the lower side of the interior of the first cooling chamber 23, and a piston plate 48 is provided vertically slidingly inside the fixed frame 47. A shell 49 is provided on the upper side of the piston plate 48. The interior of the shell 49 is connected to the lower side of the interior of the fixed frame 47 and is provided with a first connecting port 50. The upper end of the shell 49 is fixedly connected to the lower side of the first movable plate 21, and the interior of the shell 49 is connected to the interior of the water bag 41 and is provided with a second connecting port 53.

[0051] Preferably, refer to the attached Figure 7 To the attached Figure 8Two pressure plates 51 are slidingly provided on both sides of the interior of the shell 49, two first springs 52 are provided between the sides of the two pressure plates 51 that are close to each other, two push rods 54 are fixedly provided on the sides of the two pressure plates 51 that are away from each other, and two second guide blocks 55 are fixedly provided on both sides of the upper part of the fixed frame 47. The sides of the two second guide blocks 55 that are close to each other are both inclined surfaces, and the ends of the two push rods 54 that are away from each other are in sliding contact with the inclined surfaces of the two second guide blocks 55.

[0052] Preferably, refer to the attached Figure 7 To the attached Figure 8 A plurality of grooves 56 are provided on the inclined surfaces of the two second guide blocks 55 that are close to each other. A motor 42 is provided on one side of the interior of the first cooling chamber 23. An elliptical plate 43 is provided at the output end of the motor 42. A round block 44 is fixedly provided on one side of the elliptical plate 43. A push rod 46 is fixedly provided on the lower side of the inclined upper end of the first movable plate 21. A movable frame 45 is fixedly provided at the lower end of the push rod 46. The round block 44 slides horizontally inside the movable frame 45.

[0053] Preferably, refer to the attached Figure 9 To the attached Figure 10 Two cooling boxes 57 are respectively provided on both sides of the processing box 20. A second movable plate 60 is vertically slidably provided inside each cooling box 57. The interior of each cooling box 57 is separated by the second movable plate 60 to form a hydraulic chamber 62 and a second cooling chamber 61. The interior of the hydraulic chamber 62 is connected to the interior of the first cooling chamber 23 by a third connecting port 69.

[0054] Preferably, refer to the attached Figure 9 To the attached Figure 11 A second spring 65 is connected between the lower side of the second movable plate 60 and the lower side of the interior of the hydraulic chamber 62. A plurality of first baffles 63 are fixedly provided at intervals on the upper side of the interior of the second cooling chamber 61. A plurality of pairs of second baffles 64 are provided at intervals on the upper side of the second movable plate 60. An S-shaped channel is formed inside the second cooling chamber 61 by staggered distribution of the plurality of first baffles 63 and the plurality of pairs of second baffles 64. An inlet valve 58 is provided at one end of the S-shaped channel in the second cooling chamber 61, and an outlet valve 59 is provided at the other end of the S-shaped channel in the second cooling chamber 61.

[0055] Preferably, refer to the attached Figure 9 To the attached Figure 11 Two T-shaped sliders 66 are fixed to the lower end of each pair of second baffles 64, and each pair of T-shaped sliders 66 slides inside the second movable plate 60. A third spring 67 is connected between each pair of T-shaped sliders 66. A plurality of guide plates 68 are fixed to the upper side of the interior of the second cooling chamber 61, and the two sides of the lower end of each guide plate 68 are in sliding contact with the inclined surface of one side of the upper end of each pair of second baffles 64.

[0056] Preferably, refer to the attached Figure 1To the attached Figure 4 , Attachment Figure 9 , two first stepper motors 27 are symmetrically provided at the lower part of the box body 10, and two screw rods 28 are respectively provided at the output ends of the two first stepper motors 27, and the two ends of the movable block 29 are respectively in contact with the outer threads of the two screw rods 28, and a foam plastic ball layer 24 is provided on the upper side of the ethanol in the processing tank 22, and the lower end of the discharge pipe 19 is located below the foam plastic ball layer 24. The lower end face of the electromagnet 31 is an inclined surface, and the lower end face of the electromagnet 31 is parallel to the upper surface of the first movable plate 21; the crushing assembly includes two rotating shafts 15, which are symmetrically distributed on the upper side of the interior of the box body 10, and two crushing rollers 16 are respectively provided on the outer sides of the two rotating shafts 15. A second stepper motor 14 is installed on one side of the outside of the box body 10, and the output end of the second stepper motor 14 is connected to one end of one of the rotating shafts 15 through a coupling. Two gears 17 are respectively provided on the outer sides of the other ends of the two rotating shafts 15, and the outer sides of the two gears 17 are meshed with each other.

[0057] A crushing process for NdFeB thin strip alloy sheets, comprising the following steps:

[0058] S1: Crushing: NdFeB thin strip alloy sheets are placed into the crushing assembly, and the NdFeB thin strip alloy sheets are crushed by the rotation of two crushing rollers. Argon protective gas is introduced into the crushing assembly to prevent the high-temperature alloy sheets from being oxidized during the crushing process.

[0059] S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. The ethanol not only washes the exhaust gas to prevent the alloy dust in the exhaust gas from being discharged into the air, but also cools the NdFeB alloy ribbon fragments and isolates them from the air, thereby effectively preventing the NdFeB alloy ribbon fragments from being oxidized.

[0060] S3: Dispersion, moving the iron-boron alloy ribbon fragments falling into the ethanol to both sides, so as to make the iron-boron alloy ribbon fragments spread in the ethanol and prevent some ethanol from heating up too quickly;

[0061] S4: heat exchange, using the coolant to pass into the cooling box to exchange heat with ethanol to reduce the temperature of the ethanol, thereby ensuring the cooling efficiency of the iron-boron thin strip alloy fragments;

[0062] S5: Transportation: Use the transportation mechanism to transport the cooled iron-boron thin strip alloy fragments in the processing box to the collection box for temporary storage, so as to facilitate subsequent centralized processing.

[0063] Specific use of the present invention:

[0064] The staff member moves the NdFeB alloy ribbon flakes from the furnace body 11 into the interior of the housing 10. The control system activates the second stepper motor 14, which drives one of the rotating shafts 15 to rotate. The two rotating shafts 15 engage the outer sides of the two gears 17, which in turn rotate the two rotating shafts 15. The rotation of the two rotating shafts 15 drives the two crushing rollers 16 to rotate. The two crushing rollers 16 rotate and crush the NdFeB alloy ribbon flakes, producing fragmented NdFeB alloy ribbon fragments. Under the action of gravity, the NdFeB alloy ribbon fragments fall into the discharge hopper 18, and then through the discharge pipe 19 into the processing tank 22. The alloy dust inside the furnace body 11, along with the argon gas, passes through the discharge hopper 18 and the discharge pipe 19 and enters the processing tank 22. Because the lower end of the discharge pipe 19 is located within the ethanol in the treatment tank 22, the ethanol not only scrubs the exhaust gas, preventing alloy dust in the exhaust gas from being discharged into the air, but also cools the NdFeB ribbon alloy fragments and isolates them from the air, thereby effectively preventing the NdFeB ribbon alloy fragments from being oxidized. The NdFeB ribbon alloy fragments fall into the treatment tank 22 through the discharge pipe 19. The upper tip of the first guide block 32 and the two shift plates 33 are arranged at an angle, thereby guiding the falling NdFeB ribbon alloy fragments to both sides, so that the NdFeB ribbon alloy fragments can be diffused in the ethanol, preventing some of the ethanol from heating up too quickly, and thus ensuring the cooling efficiency of the NdFeB ribbon alloy fragments.

[0065] Next, the control system activates the motor 42, which drives the elliptical plate 43 to rotate. The rotation of the elliptical plate 43 drives the circular block 44 to rotate. The circular block 44 slides horizontally within the movable frame 45, thereby driving the movable frame 45 and the push rod 46 to move up and down. The push rod 46 repeatedly moves up and down, driving the first movable plate 21 to move up and down repeatedly. The first movable plate 21 moves upward, driving the elastic block 37 and the top plate 36 upward. The top end of the top plate 36 slides in contact with the inclined surfaces of the two first protrusions 38, respectively, on the sides. As a result, the top plate 36 moves upward, pushing the two sliders 34 away from each other. The moving away of the two sliders 34 drives the two elastic members 35 away from each other. The moving away of the two elastic members 35 drives the two paddles 33 to swing.

[0066] Again, the first movable plate 21 moves downward, driving the elastic block 37 and the top plate 36 to move downward, and the two paddles 33 swing back and forth under the action of gravity. As a result, the top plate 36 repeatedly moves up and down and the two sides of the upper end of the top plate 36 are in sliding contact with the inclined surfaces on one side close to the two first protrusions 38, respectively. The two paddles 33 swing back and forth, which is conducive to paddle and disperse the falling NdFeB thin ribbon alloy fragments to both sides, thereby improving the effect of diffusing and falling the NdFeB thin ribbon alloy fragments.

[0067] At the same time, the top plate 36 moves up and down, driving several pairs of second protrusions 39 to move up and down. Through the sliding contact between the outer side of the first protrusion 38 and the outer side of the second protrusion 39, under the contact and extrusion of the first protrusion 38 and the second protrusion 39, the two paddles 33 swing back and forth in a large range while swinging back and forth in a small range, which is beneficial to further disperse the fallen NdFeB thin strip alloy fragments to both sides and stir the ethanol to avoid local ethanol heating too fast, so that the ethanol is heated evenly, thereby maintaining the cooling efficiency of the NdFeB thin strip alloy fragments.

[0068] Then, the first movable plate 21 moves up and down, driving the shell 49 and the piston plate 48 to move up and down. The piston plate 48 moves downward to squeeze the coolant on the lower side of the fixed frame 47 into the pressure plate 51 through the first connecting port 50, so that the coolant in the pressure plate 51 enters the water bag 41 through the second connecting port 53. The expansion of the water bag 41 pushes the rotating plate 40 to swing, so as to increase the inclination angle of the rotating plate 40, which is conducive to the iron-boron ribbon alloy fragments falling onto the rotating plate 40 to tilt downward and to collect and store the cooled iron-boron ribbon alloy fragments; and the first movable plate 21 moves up and down, driving the shell 49 and the piston plate 48 to move up and down, so that the rotating plate 40 swings back and forth, so as to shake the iron-boron ribbon alloy fragments and tilt them downward, and increase the swinging amplitude of the two dial plates 33, so as to fully cool the iron-boron ribbon alloy fragments.

[0069] At the same time, the shell 49 moves downward, driving the two push rods 54 to move downward, and the ends of the two push rods 54 that are away from each other are respectively in sliding contact with the inclined surfaces of the two second guide blocks 55 that are close to each other. Therefore, under the guidance of the two second guide blocks 55, the two push rods 54 and the pressure plate 51 are brought close to each other. The two pressure plates 51 are brought close to each other, and the coolant in the shell 49 enters the water bag 41 through the second connecting port 53. The water bag 41 continues to expand, further increasing the tilt angle of the rotating plate 40, which is conducive to causing the iron-boron thin strip alloy fragments falling onto the rotating plate 40 to tilt downward. The two pressing plates 51 are moved closer to each other, compressing the two first springs 52 to generate elastic force. When the ends of the two push rods 54 that are away from each other correspond to the two grooves 56 respectively, the two pressing plates 51 and the push rods 54 are moved away from each other under the elastic force of the first springs 52. As a result, under the guiding action of the several pairs of grooves 56 and the elastic force of the first springs 52, the two pressing plates 51 are alternately moved closer to and away from each other, so that the two pressing plates 51 are moved closer to and away from each other by a small amount at the same time, so that the rotating plate 40 is moved up and down by a small amount at the same time with a large angle change, so as to shake the iron-boron thin strip alloy fragments downwardly; and further, the two shifting plates 33 are moved back and forth by a large amount at the same time with a small amount, which is conducive to shifting and dispersing the falling neodymium iron boron thin strip alloy fragments to both sides, thereby further improving the effect of diffusing and falling the neodymium iron boron thin strip alloy fragments.

[0070] Next, the control system operates the inlet valve 58 to open, allowing the coolant to enter the second cooling chamber 61 through the inlet valve 58. The coolant is then staggered between the plurality of first baffles 63 and the plurality of pairs of second baffles 64, forming an S-shaped channel in the second cooling chamber 61. This extends the coolant's travel within the second cooling chamber 61, facilitating heat exchange and cooling of the ethanol in the processing tank 22 by the coolant in the second cooling chamber 61, thereby maintaining the ethanol's cooling effect on the NdFeB alloy ribbon fragments. The coolant is then discharged through the outlet valve 59, circulating within the second cooling chamber 61. The downward movement of the first movable plate 21 allows the coolant in the first cooling chamber 23 to enter the hydraulic chamber 62 through the third connection port 69, thereby pushing the second movable plate 60 upward. The upward movement of the second movable plate 60 drives the pairs of second baffles 64 upward. The lower ends of the guide plates 68 respectively come into sliding contact with the inclined surfaces on the upper ends of the two second baffles 64. Guided by the guide plates 68, the two second baffles 64 move away from each other. This movement of the two second baffles 64 drives the two T-shaped sliders 66 away from each other. This movement of the two T-shaped sliders 66 stretches the third spring 67, generating an elastic force. The upward movement of the second movable plate 60 stretches the second spring 65, generating an elastic force. The upward movement of the first movable plate 21 allows the coolant in the hydraulic chamber 62 to enter the hydraulic chamber 62 through the third connection port 69, allowing the second movable plate 60 to move downward under the elastic force of the second spring 65. The downward movement of the second movable plate 60, under the elastic force of the third spring 67, forces the two T-shaped sliders 66 and the second baffles 64 away from each other. The first movable plate 21 moves up and down, and under the elastic force of the second spring 65, the second movable plate 60 moves up and down, thereby promoting the flow of coolant in the second cooling chamber 61. The second baffles 64 are alternately moved away from and toward each other under the elastic force of the third spring 67, thereby stirring the coolant in the second cooling chamber 61 and promoting the consistency of the coolant temperature in the second cooling chamber 61. The coolant in the second cooling chamber 61 is then exchanged with ethanol for heat and cooling, thereby reducing the temperature of the ethanol and preventing increased ethanol evaporation due to high temperature, thereby ensuring efficient cooling of the NdFeB ribbon alloy fragments. Furthermore, the foam plastic ball layer 24 covering the upper side of the ethanol in the treatment tank 22 significantly reduces ethanol consumption due to evaporation. Furthermore, the spherical foam plastic ball layer 24 is not attracted by the electromagnet 31, thereby preventing it from affecting the handling of the NdFeB ribbon alloy fragments by the electromagnet 31.

[0071] Finally, the control system activates the two first stepper motors 27. These motors rotate the two lead screws 28, which in turn engage the outer threads of the lead screws 28 at both ends of the movable block 29, causing the movable block 29 to move horizontally. The movement of the movable block 29 drives the electric telescopic rod 30 and electromagnet 31, which then moves to the top of the processing box 20. The electric telescopic rod 30 extends, driving the electromagnet 31 downward. Power is applied to the electromagnet 31, generating a magnetic force that attracts the NdFeB ribbon alloy fragments on the upper side of the first movable plate 21 to the electromagnet 31. The electric telescopic rod 30 retracts, driving the electromagnet 31 upward. The rotation of the two lead screws 28 drives the movable block 29 and the electric telescopic rod 30. This movement drives the electromagnet 31 to the top of the collection box 26. The electromagnet 31 then de-energizes, allowing the NdFeB ribbon alloy fragments to fall into the collection box 26 for storage and subsequent centralized processing.

[0072] The present invention provides a crushing and processing device for NdFeB thin ribbon alloy sheets and a processing process thereof. Through the arrangement of a first guide block 32 and a paddle 33, NdFeB thin ribbon alloy fragments are dropped through a feed pipe 19 into a processing tank 22. The upper tip of the first guide block 32 and the two paddles 33 are arranged at an angle, thereby guiding the falling NdFeB thin ribbon alloy fragments to the sides, thereby facilitating their diffusion within the ethanol, preventing some ethanol from heating too quickly, and thus ensuring efficient cooling of the NdFeB thin ribbon alloy fragments. Furthermore, through the arrangement of a slider 34, an elastic member 35, and a top plate 36, the two paddles 33 swing back and forth due to the repeated up and down movement of the top plate 36 and the sliding contact of the inclined surfaces on both sides of the top plate 36, which are adjacent to the two first protrusions 38, thereby facilitating the diversion and dispersion of the falling NdFeB thin ribbon alloy fragments, thereby improving the effect of diffusing and dropping the NdFeB thin ribbon alloy fragments. Finally, through the arrangement of the first protrusions 38 and the second protrusions 39, the top plate 36 moves up and down, driving several pairs of second protrusions 39 to move up and down. Through the sliding contact between the outer sides of the first protrusions 38 and the outer sides of the second protrusions 39, under the contact and extrusion of the first protrusions 38 and the second protrusions 39, the two paddles 33 swing back and forth in a large range while swinging back and forth in a small range, which is conducive to further prying and dispersing the fallen NdFeB thin strip alloy fragments to both sides, and stirring the ethanol to avoid local ethanol heating too fast, so that the ethanol is heated evenly, thereby maintaining the cooling efficiency of the NdFeB thin strip alloy fragments.

[0073] The crushing and processing equipment for NdFeB thin strip alloy sheets of the present invention and its processing technology, through the arrangement of the piston plate 48, the shell 49, the water bag 41, and the rotating plate 40, the piston plate 48 moves downward to squeeze the coolant on the lower side of the fixed frame 47 into the pressure plate 51 through the first connecting port 50, so that the coolant in the pressure plate 51 enters the water bag 41 through the second connecting port 53, and the expansion of the water bag 41 pushes the rotating plate 40 to swing, so as to increase the inclination angle of the rotating plate 40, which is conducive to causing the NdFeB thin strip alloy fragments falling onto the rotating plate 40 to move downward and tilt, and is conducive to collecting and storing the cooled NdFeB thin strip alloy fragments; and the first movable plate 21 moves up and down, driving the shell 49 and the piston plate 48 to move up and down, so that the rotating plate 40 swings back and forth, so as to shake the NdFeB thin strip alloy fragments and move them downward and tilt, and increase the swinging amplitude of the two dial plates 33, so as to fully cool the NdFeB thin strip alloy fragments. Then, through the arrangement of the second guide block 55, the groove 56, and the pressure plate 51, the shell 49 moves downward, driving the two push rods 54 to move downward, and the ends of the two push rods 54 that are away from each other are respectively in sliding contact with the inclined surfaces of the two second guide blocks 55 that are close to each other. Therefore, under the guidance of the two second guide blocks 55, the two push rods 54 and the pressure plate 51 are brought close to each other. The two pressure plates 51 are brought close to each other, and the coolant in the shell 49 enters the water bag 41 through the second connecting port 53. The water bag 41 continues to expand, further increasing the tilt angle of the rotating plate 40, which is conducive to causing the iron-boron thin strip alloy fragments falling onto the rotating plate 40 to tilt downward. Finally, through the arrangement of the grooves 56 and the first spring 52, under the guiding action of several pairs of grooves 56 and the elastic force of the first spring 52, the two pressure plates 51 are alternately moved closer to and farther away from each other, so that the two pressure plates 51 are moved closer to and farther away from each other by a large amplitude while being moved closer to and farther away from each other by a small amplitude, so that the rotating plate 40 is made to change its angle by a large amplitude while being shaken up and down by a small amplitude, so as to shake and tilt the Fe-B ribbon alloy fragments downward; and further, the two shifting plates 33 are made to swing back and forth by a large amplitude while being swung back and forth by a small amplitude, which is conducive to shifting and dispersing the NdFeB ribbon alloy fragments that fall to the sides, thereby further improving the effect of diffusing and falling the NdFeB ribbon alloy fragments.

[0074] The present invention provides crushing and processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof. Through the arrangement of a first baffle 63 and a second baffle 64, coolant enters the second cooling chamber 61 through an inlet valve 58. A plurality of first baffles 63 and a plurality of pairs of second baffles 64 are staggered and distributed, thereby forming an S-shaped channel in the second cooling chamber 61. This facilitates extending the travel of the coolant in the second cooling chamber 61, and is beneficial for the coolant in the second cooling chamber 61 to perform heat exchange and cooling on the ethanol in the processing tank 22, thereby maintaining the cooling effect of the ethanol on the NdFeB thin strip alloy fragments. Then, by setting the second movable plate 60 and the guide plate 68, the first movable plate 21 moves up and down and under the elastic force of the second spring 65, the second movable plate 60 moves up and down, so as to promote the flow of coolant in the second cooling chamber 61, and under the elastic force of the third spring 67, the two second baffles 64 are alternately moved away from and close to each other, so as to stir the coolant in the second cooling chamber 61, promote the coolant in the second cooling chamber 61 to have the same temperature, so as to utilize the coolant in the second cooling chamber 61 to exchange heat with ethanol and cool down, so as to reduce the temperature of ethanol, thereby ensuring the cooling efficiency of the iron-boron thin strip alloy fragments.

[0075] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A crushing and processing equipment for NdFeB thin strip alloy sheets, characterized by: The invention comprises a box body (10), wherein a furnace body (11) is provided at the upper end of the box body (10), a control box (13) is provided outside the box body (10), a crushing assembly is provided at the upper part of the box body (10), a discharge funnel (18) is fixedly provided on the upper side of the interior of the box body (10), a discharge pipe (19) is provided on the lower side of the discharge funnel (18), a cooling assembly is provided on one side of the lower part of the box body (10), a collecting box (26) is provided on the other side of the lower part of the box body (10), a movable block (29) is provided in a sliding manner inside the box body (10), an electric telescopic rod (30) is provided on the lower side of the movable block (29), and an electromagnet (31) is provided at the protruding end of the electric telescopic rod (30); The cooling assembly includes a processing box (20), the processing box (20) is located at the lower side of the interior of the box body (10), the interior of the processing box (20) is inclined and provided with a first movable plate (21) that slides vertically, the interior of the processing box (20) is separated by the first movable plate (21) into a processing tank (22) and a first cooling chamber (23), the interior of the processing tank (22) is filled with ethanol, the lower end of the discharge pipe (19) extends to the interior of the processing tank (22), a first guide block (32) is fixed between the two side walls of the processing tank (22), two dial plates (33) are rotatably provided on both sides of the first guide block (32), and the first movable plate (33) is provided on both sides of the processing tank (22). A rotating plate (40) is rotatably provided on the upper side of the movable plate (21), an elastic block (37) is provided on the upper side of the rotating plate (40), a top plate (36) is provided on the upper side of the elastic block (37), a slider (34) is slidably provided in the two side walls of the first guide block (32), an elastic member (35) is connected between the ends of the two sliders (34) that are away from each other and one side of the two shifting plates (33), and the sides of the two sliders (34) that are close to each other are in sliding contact with the inclined surfaces on both sides of the upper end of the top plate (36), and a water bag (41) is connected between the lower side of the inclined upper end of the rotating plate (40) and the first movable plate (21); A first protrusion (38) is fixedly provided on each side of the two sliders (34) close to each other, and a plurality of second protrusions (39) are spaced apart on the two inclined surfaces at the upper end of the top plate (36), and the outer side of each second protrusion (39) is in sliding contact with the outer side of the first protrusion (38). A solenoid valve (25) is provided on one side of the processing tank (22); A fixed frame (47) is provided on the lower side of the interior of the first cooling chamber (23), a piston plate (48) is provided in a vertically sliding manner inside the fixed frame (47), a shell (49) is provided on the upper side of the piston plate (48), the interior of the shell (49) is connected to the lower side of the interior of the fixed frame (47) and is provided with a first connecting port (50), the upper end of the shell (49) is fixedly connected to the lower side of the first movable plate (21), and the interior of the shell (49) is connected to the interior of the water bag (41) and is provided with a second connecting port (53); A pressure plate (51) is slidably provided on both sides of the interior of the shell (49), two first springs (52) are provided between the sides of the two pressure plates (51) that are close to each other, and a push rod (54) is fixedly provided on the sides of the two pressure plates (51) that are away from each other. A second guide block (55) is fixedly provided on both sides of the upper part of the fixed frame (47), and the sides of the two second guide blocks (55) that are close to each other are both inclined surfaces. The ends of the two push rods (54) that are away from each other are in sliding contact with the inclined surfaces of the two second guide blocks (55).

2. The crushing and processing equipment for NdFeB thin strip alloy sheets according to claim 1, characterized in that: A plurality of grooves (56) are provided on the inclined surfaces of the two second guide blocks (55) that are close to each other. A motor (42) is provided on one side of the interior of the first cooling chamber (23). An elliptical plate (43) is provided at the output end of the motor (42). A round block (44) is fixedly provided on one side of the elliptical plate (43). A push rod (46) is fixedly provided on the lower side of the inclined upper end of the first movable plate (21). A movable frame (45) is fixedly provided at the lower end of the push rod (46). The round block (44) slides horizontally inside the movable frame (45).

3. The crushing and processing equipment for NdFeB thin strip alloy sheets according to claim 1, characterized in that: A cooling box (57) is provided on each side of the processing box (20), and a second movable plate (60) is provided vertically slidingly inside each cooling box (57). The interior of each cooling box (57) is separated by the second movable plate (60) into a hydraulic chamber (62) and a second cooling chamber (61). The interior of the hydraulic chamber (62) is connected to the interior of the first cooling chamber (23) by a third connecting port (69).

4. The crushing and processing equipment for NdFeB thin strip alloy sheets according to claim 3, characterized in that: A second spring (65) is connected between the lower side of the second movable plate (60) and the lower side of the interior of the hydraulic chamber (62); a plurality of first baffles (63) are fixedly provided at intervals on the upper side of the interior of the second cooling chamber (61); a plurality of pairs of second baffles (64) are provided at intervals on the upper side of the second movable plate (60); an S-shaped channel is formed in the interior of the second cooling chamber (61) by staggered distribution of the plurality of first baffles (63) and the plurality of pairs of second baffles (64); an inlet valve (58) is provided at one end of the S-shaped channel in the second cooling chamber (61); and an outlet valve (59) is provided at the other end of the S-shaped channel in the second cooling chamber (61).

5. The crushing and processing equipment for NdFeB thin strip alloy sheets according to claim 4, characterized in that: A T-shaped slider (66) is fixed at the lower end of each pair of the second baffles (64), and each pair of the T-shaped sliders (66) slides inside the second movable plate (60). A third spring (67) is connected between each pair of the T-shaped sliders (66). A plurality of guide plates (68) are fixed on the upper side of the interior of the second cooling chamber (61), and both sides of the lower end of each guide plate (68) are in sliding contact with the inclined surface of one side of the upper end of each pair of the second baffles (64).

6. The crushing and processing equipment for NdFeB thin strip alloy sheets according to claim 1, characterized in that: Two first stepper motors (27) are symmetrically provided at the lower part of the box body (10), and a screw rod (28) is provided at the output end of each of the two first stepper motors (27). The two ends of the movable block (29) are in contact with the outer threads of the two screw rods (28) respectively. A foam plastic ball layer (24) is provided on the upper side of the ethanol in the processing tank (22), and the lower end of the discharge pipe (19) is located below the foam plastic ball layer (24). The lower end surface of the electromagnet (31) is an inclined surface, and the lower end surface of the electromagnet (31) is aligned with the upper surface of the first movable plate (21). Parallel to each other; the crushing assembly includes two rotating shafts (15), the two rotating shafts (15) are symmetrically distributed on the upper side of the interior of the box (10), and a crushing roller (16) is respectively provided on the outer side of the two rotating shafts (15). A second stepper motor (14) is installed on one side of the exterior of the box (10), and the output end of the second stepper motor (14) is connected to one end of one of the rotating shafts (15) through a coupling. A gear (17) is respectively provided on the outer side of the other end of the two rotating shafts (15), and the outer sides of the two gears (17) are meshed with each other.

7. A crushing process for NdFeB thin strip alloy sheets, comprising a crushing process for NdFeB thin strip alloy sheets according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Crushing: NdFeB thin strip alloy sheets are placed into the crushing assembly, and the NdFeB thin strip alloy sheets are crushed by the rotation of two crushing rollers. Argon protective gas is introduced into the crushing assembly to prevent the high-temperature alloy sheets from being oxidized during the crushing process. S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. The ethanol not only washes the exhaust gas to prevent the alloy dust in the exhaust gas from being discharged into the air, but also cools the NdFeB alloy ribbon fragments and isolates them from the air, thereby effectively preventing the NdFeB alloy ribbon fragments from being oxidized. S3: Dispersion, moving the iron-boron alloy ribbon fragments falling into the ethanol to both sides, so as to make the iron-boron alloy ribbon fragments spread in the ethanol and prevent some ethanol from heating up too quickly; S4: heat exchange, using the coolant to pass into the cooling box to exchange heat with ethanol to reduce the temperature of the ethanol, thereby ensuring the cooling efficiency of the iron-boron thin strip alloy fragments; S5: Transportation: Use the transportation mechanism to transport the cooled iron-boron thin strip alloy fragments in the processing box to the collection box for temporary storage, so as to facilitate subsequent centralized processing.

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