Crushing processing equipment for neodymium iron boron thin strip alloy sheet and processing technology of crushing processing equipment

Abstract

The invention relates to the related technical field of neodymium iron boron thin strip alloy sheet crushing, and discloses a neodymium iron boron thin strip alloy sheet crushing processing device and a processing technology thereof.The neodymium iron boron thin strip alloy sheet crushing processing device comprises a box body, a furnace body is arranged at the upper end of the box body, a control box is arranged outside the box body, a crushing assembly is arranged on the upper portion of the box body, and a discharging hopper is arranged on the upper side of the interior of the box body; a discharging pipe is arranged on the lower side of the discharging hopper, and a cooling assembly is arranged on the lower portion of the box body. According to the device, the tip of the upper portion of the first guide block and the two shifting plates are arranged in an inclined mode, so that falling neodymium iron boron ribbon alloy fragments are guided to move towards the two sides, and the neodymium iron boron ribbon alloy fragments are diffused in ethyl alcohol; and under the action of up-and-down repeated movement of the top plate and sliding contact matching between the two sides of the upper end of the top plate and the inclined surfaces of the sides, close to each other, of the two first convex blocks, the two stirring plates swing back and forth, falling neodymium iron boron ribbon alloy fragments can be stirred and dispersed towards the two sides, and therefore the cooling efficiency of the neodymium iron boron ribbon alloy fragments is guaranteed.

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, particularly relates to a crushing and processing equipment for NdFeB thin strip alloy sheets and a processing technology thereof. Background Art

[0002] The rare earth permanent magnet material NdFeB 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 into NdFeB thin strip alloy fragments, and then the NdFeB thin strip alloy fragments are processed into powders. Finally, the NdFeB thin strip alloy powders are aggregated and formed, and then sintered, and finally cut into the required size. In the production process of NdFeB thin strip alloy fragments, each raw material is usually first smelted into liquid alloy liquid, and then refined, cooled and cooled to form large alloy sheets, and then the alloy sheets are crushed by two mutually cooperating crushing rollers to obtain fragmented NdFeB thin strip alloy fragments. However, the crushing of NdFeB thin strip alloy sheets in the prior art has the following defects: In the prior art, in the process of producing NdFeB thin strip alloy fragments using crushing processing equipment for NdFeB thin strip alloy sheets, argon protective gas is introduced into the furnace body to prevent the NdFeB thin strip 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 strip alloy fragments, a small amount of alloy dust will be generated, and the dust will flow out along with the discharge of the argon gas, easily causing environmental pollution.

[0003] In the prior art, when the NdFeB thin strip alloy sheet crushing equipment is crushing the NdFeB thin strip alloy sheet, since the temperature of the NdFeB thin strip alloy sheet is usually over 200°C, the NdFeB thin strip alloy sheet discharged from the furnace is also in a high temperature state, which easily leads to oxidation of the NdFeB thin strip alloy sheet and causes the quality of the NdFeB thin strip alloy sheet to decrease, so it is necessary to cool the crushed NdFeB thin strip alloy sheet; In the prior art, when the crushing and processing equipment for NdFeB thin strip alloy sheets cools down the crushed NdFeB thin strip alloy sheets, ethanol is usually used to cool down the crushed NdFeB thin strip alloy sheets. However, the crushed NdFeB thin strip alloy sheets move directly downward under the action of gravity, so that the contact position between the crushed NdFeB thin strip alloy sheets and the ethanol is too concentrated, which easily causes the temperature of some ethanol to rise rapidly, thereby affecting the cooling effect of the crushed NdFeB thin strip alloy sheets.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a crushing and 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

[0005] 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.

[0006] The purpose and effect of the crushing and processing equipment for NdFeB thin strip alloy sheet and the processing technology thereof of the present invention are achieved by the following specific technical means: 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 outside the box body, a crushing assembly is provided at the upper part of the box body, a feeding hopper is fixedly provided on the upper side of the interior of the box body, a feeding pipe is provided on the lower side of the feeding hopper, a cooling assembly is provided on one side of the lower part of the box body, a collecting box is provided on the other side of the lower part of the box body, a movable block is provided inside the box body for sliding, an electric telescopic rod is provided on the lower side of the movable block, and an electromagnet is provided on the extended end of the electric telescopic rod; the cooling assembly comprises a processing box, the processing box is located at the lower side of the interior of the box body, a first movable plate is provided inside the processing box in an inclined manner, and the interior of the processing box is divided by the first movable plate A processing tank and a first cooling chamber, wherein ethanol is filled in the processing tank, and the lower end of the discharge pipe extends into the processing tank, and a first guide block is fixedly provided between the two side walls of the processing tank, and two paddle plates are rotatably provided on both sides of the first guide block, and a rotating plate is rotatably provided on the upper side of the first movable plate, and an elastic block is provided on the upper side of the rotating plate, and a top plate is provided on the upper side of the elastic block, and two sliding blocks are respectively slidably provided in the two side walls of the first guide block, and two elastic members are respectively connected between the ends of the two sliding blocks away from each other and one side of the two paddle plates, and the sides of the two sliding blocks close to each other are respectively in sliding contact with the inclined surfaces on both sides of the upper end of the top plate, and a water bag is connected between the lower side of the inclined upper end of the rotating plate and the first movable plate.

[0007] According to a further technical solution, two first protrusions are fixedly provided on the sides of the two sliding blocks close to each other, a number of second protrusions are spaced apart on the two inclined surfaces at the upper end of the top plate, 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.

[0008] A further technical solution is that a fixed frame is provided on the lower inner side of the first cooling chamber, a piston plate is provided inside the fixed frame for vertical sliding, a shell is provided on the upper side of the piston plate, a first connecting port is provided inside the shell and connected to the lower inner side of the fixed frame, the upper end of the shell is fixedly connected to the lower side of the first movable plate, and a second connecting port is provided inside the shell and connected to the inner side of the water bag.

[0009] According to a further technical solution, two pressure plates are slidably provided on both sides of the interior of the shell, two first springs are provided between the sides where the two pressure plates are close to each other, two push rods are fixedly provided on the sides where the two pressure plates are away from each other, two second guide blocks are fixedly provided on both sides of the upper part of the fixed frame, the sides where the two second guide blocks are close to each other are both inclined surfaces, and the ends of the two push rods away from each other are in sliding contact with the inclined surfaces of the two second guide blocks.

[0010] A further technical solution is that a plurality of grooves are provided on the inclined surfaces on one side where the two second guide blocks are close to each other, a motor is provided on one side inside 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.

[0011] 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 vertically slidably provided inside each cooling box. A hydraulic chamber and a second cooling chamber are separated inside each cooling box by the second movable plate, and a third connecting port is provided to connect the interior of the hydraulic chamber with the interior of the first cooling chamber.

[0012] 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 inner upper side 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 the first baffles and a plurality of pairs of the 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.

[0013] A further technical solution is that two T-shaped sliders are fixedly provided at the lower end of each pair of the second baffles, each pair of the T-shaped sliders slide inside the second movable plate, a third spring is connected between each pair of the T-shaped sliders, and a plurality of guide plates are fixedly provided on the upper side of the interior of the second cooling chamber, and both 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.

[0014] 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, 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 outer sides of the two rotating shafts, and 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 outer sides of the other ends of the two rotating shafts, and the outer sides of the two gears are meshed with each other.

[0015] A crushing process for NdFeB thin strip alloy sheets, comprising the following steps: S1: Crushing: Put the NdFeB thin strip alloy sheet into the crushing assembly, and crush the NdFeB thin strip alloy sheet by rotating two crushing rollers, and introduce argon protective gas into the crushing assembly to prevent the high-temperature alloy sheet from being oxidized during the crushing process; S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. Ethanol not only washes the tail gas to prevent the alloy dust in the tail 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: Dispersing, 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.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The crushing and processing equipment and processing technology for NdFeB thin strip alloy sheets of the present invention, through the arrangement of the first guide block and the paddle plate, the NdFeB thin strip alloy fragments fall into the processing tank through the feeding pipe, and the upper tip of the first guide block and the two paddle plates are arranged obliquely, so as to guide and move the NdFeB thin strip alloy fragments falling to both sides, so as to make the NdFeB thin strip alloy fragments diffuse in ethanol, avoid excessive heating of some ethanol, and thus ensure the cooling efficiency of the NdFeB thin strip alloy fragments. Then, through the arrangement of the slider, the elastic member, and the top plate, the top plate repeatedly moves up and down and the upper ends of the top plate are respectively in sliding contact with the inclined surfaces of one side close to the two first protrusions, so that the two paddle plates swing back and forth, which is conducive to paddle and disperse the falling NdFeB thin strip alloy fragments to both sides, and improve the effect of diffusion and falling of the NdFeB thin strip alloy fragments. Finally, through the arrangement of the first protrusion and the second protrusion, the top plate moves up and down to drive several pairs of second protrusions to move up and down, and the outer side of the first protrusion is in sliding contact with the outer side of the second protrusion. Therefore, under the contact and extrusion of the first protrusion and the second protrusion, the two paddles swing back and forth with a large amplitude and swing back and forth with a small amplitude at the same time, which is beneficial to further disperse the fallen NdFeB thin strip alloy fragments to both sides and stir the ethanol to avoid the local ethanol heating up too fast, so that the ethanol is heated evenly, thereby maintaining the cooling efficiency of the NdFeB thin strip alloy fragments.

[0017] The crushing and processing equipment for NdFeB thin strip alloy sheets of the present invention and its processing technology are as follows: 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, and the water bag expands to push the rotating plate to swing, so as to increase the tilt angle of the rotating plate, which is beneficial for the NdFeB thin strip alloy fragments that fall onto the rotating plate to tilt and move downward, and is beneficial for collecting and storing the cooled NdFeB thin strip alloy fragments; and the first movable plate moves up and down to drive the shell and the piston plate to move up and down, so that the rotating plate swings back and forth, so as to shake the NdFeB thin strip alloy fragments and tilt and move them downward, and increase the swing amplitude of the two paddle plates, so as to fully cool the NdFeB thin strip alloy fragments. 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 in contact with 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 brought close to each other to allow the coolant in the shell to enter 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 that fall onto 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 greatly and move away from each other slightly alternately, so that the rotating plate is made to change its angle greatly and shake up and down slightly at the same time, so as to shake and tilt the NdFeB strip alloy fragments downward; and further, the two paddle plates are made to swing back and forth greatly and swing back and forth slightly at the same time, which is conducive to paddle and disperse the NdFeB strip alloy fragments that fall to the two sides, and further improve the effect of diffusing and falling the NdFeB strip alloy fragments.

[0018] The invention discloses a crushing and processing equipment for NdFeB thin strip alloy sheet and a processing technology thereof. Through the arrangement of the first baffle plate and the second baffle plate, the coolant enters the second cooling chamber through the inlet valve, and the first baffle plates and the second baffle plates are staggered and distributed, so that the second cooling chamber forms an S-shaped channel, so as to extend the travel of the coolant in the second cooling chamber, which is conducive to the heat exchange and cooling effect of the coolant in the second cooling chamber on the ethanol in the processing tank, so as to maintain the cooling effect of the ethanol on the NdFeB thin strip alloy fragments. Through the arrangement of the second movable plate and the guide plate, the first movable plate moves up and down and under the elastic force of the second spring, the second movable plate moves up and down, so as to promote the flow of the coolant in the second cooling chamber, and under the elastic force of the third spring, the two second baffle plates are alternately moved away from and close to each other, so as to stir the coolant in the second cooling chamber, promote the coolant in the second cooling chamber to have the same temperature, so as to utilize the coolant in the second cooling chamber to exchange heat and cool the ethanol, so as to reduce the temperature of the ethanol, so as to ensure the cooling efficiency of the NdFeB thin strip alloy fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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.

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a first isometric structural schematic diagram of the present invention; Figure 2 It is a second isometric structural schematic diagram of the present invention; Figure 3 It is a front view structural schematic diagram of the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 for Figure 4 A schematic diagram of the structure of the partial enlarged view at C in the middle; Figure 6 for Figure 5 The structural schematic diagram of the local enlarged view at E in the middle; Figure 7 for Figure 4 A schematic diagram of the structure of the local enlarged view at D in the middle; Figure 8 for Figure 7 The structural schematic diagram of the local enlarged view at F in the middle; Fig. 9 It is a schematic diagram of the cross-sectional structure at BB in 3; Fig.10 for Fig. 9 A schematic diagram of the structure of the local enlarged view at G in the middle; Fig.11 for Fig. 9 Schematic diagram of the structure of the local enlarged view at H in the middle.

[0022] Description of reference numerals: Box body 10, furnace body 11, control box 13, second stepper motor 14, rotating shaft 15, crushing roller 16, gear 17, feeding hopper 18, feeding pipe 19, processing box 20, first movable plate 21, processing tank 22, first cooling chamber 23, foam plastic ball layer 24, solenoid valve 25, collecting 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 convex block 38, second convex block 39, rotating Moving 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 plate 63, second baffle plate 64, second spring 65, T-shaped slider 66, third spring 67, guide plate 68, third connecting port 69. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with 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.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As attached Figure 1 To Attachment Fig.11 As shown: The invention provides a crushing and processing device for NdFeB thin strip alloy sheets and a processing technology thereof.

[0027] Refer to the attached Figure 1 To Attachment Fig.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 outside the box body 10, a crushing assembly is provided at the upper part of the box body 10, a feeding hopper 18 is fixedly provided on the upper side of the inner part of the box body 10, a feeding pipe 19 is provided on the lower side of the feeding hopper 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 slidably provided 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 inner part of the box body 10, a first movable plate 21 is tilted inside the processing box 20, and a processing tank 22 and a first cooling chamber are separated from the processing box 20 by the first movable plate 21 23. The interior of the processing tank 22 is filled with ethanol. The lower end of the discharge pipe 19 extends into the interior of the processing tank 22. A first guide block 32 is fixedly provided 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. A rotating plate 40 is rotatably provided on the upper side of the first 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. Two sliders 34 are slidably provided in the two side walls of the first guide block 32 respectively. Two elastic members 35 are connected between the ends of the two sliders 34 that are away from each other and one side of the two dial plates 33 respectively. 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 respectively. 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.

[0028] Preferably, see Attachment Figure 4 To Attachment Figure 6 Two first protrusions 38 are fixedly provided on the side where the two sliders 34 are 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. 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.

[0029] Preferably, see Attachment Figure 7 To Attachment Figure 8 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 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 a first connecting port 50 is provided, 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 a second connecting port 53 is provided.

[0030] Preferably, see Attachment Figure 7 To Attachment Figure 8 Two pressure plates 51 are 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, 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, and 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.

[0031] Preferably, see Attachment Figure 7 To Attachment Figure 8 A plurality of grooves 56 are provided on the inclined surfaces of the two second guide blocks 55 which 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 on 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 on the lower end of the push rod 46. The round block 44 slides horizontally inside the movable frame 45.

[0032] Preferably, see Attachment Fig. 9 To Attachment Fig.10 Two cooling boxes 57 are respectively provided on both sides of the processing box 20, and a second movable plate 60 is vertically slidably provided inside each cooling box 57. A hydraulic chamber 62 and a second cooling chamber 61 are separated inside each cooling box 57 by the second movable plate 60, and the interior of the hydraulic chamber 62 is connected to the interior of the first cooling chamber 23 by a third connecting port 69.

[0033] Preferably, see Attachment Fig. 9 To Attachment Fig.11A 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 arranged at intervals on the upper side of the interior of the second cooling chamber 61, a plurality of pairs of second baffles 64 are arranged at intervals on the upper side of the second movable plate 60, and an S-shaped channel is formed inside the second cooling chamber 61 through the staggered distribution of the plurality of first baffles 63 and the plurality of pairs of second baffles 64, an inlet valve 58 is arranged at one end of the S-shaped channel in the second cooling chamber 61, and an outlet valve 59 is arranged at the other end of the S-shaped channel in the second cooling chamber 61.

[0034] Preferably, see Attachment Fig. 9 To Attachment Fig.11 Two T-shaped sliders 66 are fixedly provided at 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 fixedly provided 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 on one side of the upper end of each pair of second baffles 64.

[0035] Preferably, see Attachment Figure 1 To Attachment Figure 4 , Attachment Fig. 9 Two first stepper motors 27 are symmetrically arranged at the lower part of the box body 10, and two screw rods 28 are respectively arranged 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 arranged 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, and the lower end surface of the electromagnet 31 is an inclined surface, and the lower end surface of the electromagnet 31 is parallel to the upper surface of the first movable plate 21; the crushing assembly includes two rotating shafts 15, and the two rotating shafts 15 are symmetrically distributed on the upper side of the inner part of the box body 10, and two crushing rollers 16 are respectively arranged on the outer side of the two rotating shafts 15, and a second stepper motor 14 is installed on one side of the outer side 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, and two gears 17 are respectively arranged 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.

[0036] A crushing process for NdFeB thin strip alloy sheets, comprising the following steps: S1: Crushing: Put the NdFeB thin strip alloy sheet into the crushing assembly, and crush the NdFeB thin strip alloy sheet by rotating two crushing rollers, and introduce argon protective gas into the crushing assembly to prevent the high-temperature alloy sheet from being oxidized during the crushing process; S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. Ethanol not only washes the tail gas to prevent the alloy dust in the tail 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: Dispersing, 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.

[0037] Specific use of the present invention: The staff member's NdFeB thin strip alloy sheet in the furnace body 11 enters the interior of the box body 10, and the control system controls the second stepper motor 14 to start, and the second stepper motor 14 starts to drive one of the rotating shafts 15 to rotate, and the two rotating shafts 15 are engaged through the outer sides of the two gears 17, so that the two rotating shafts 15 rotate, and the rotation of the two rotating shafts 15 drives the two crushing rollers 16 to rotate, and the two crushing rollers 16 rotate to crush the NdFeB thin strip alloy sheet to obtain fragmented NdFeB thin strip alloy fragments. Under the action of gravity, the NdFeB thin strip alloy fragments fall into the feeding funnel 18, and fall into the processing tank 22 through the feeding pipe 19, and the alloy dust inside the furnace body 11 enters the processing tank 22 together with the argon gas through the feeding funnel 18 and the feeding pipe 19. Since the lower end of the feed pipe 19 is located in the ethanol in the processing tank 22, the ethanol not only washes the tail gas to prevent the alloy dust in the tail gas from being discharged into the air, but also cools the NdFeB thin ribbon alloy fragments and isolates the air, thereby effectively preventing the NdFeB thin ribbon alloy fragments from being oxidized. Among them, the NdFeB thin ribbon alloy fragments fall into the processing tank 22 through the feed pipe 19, and the upper tip of the first guide block 32 and the two dial plates 33 are arranged obliquely, so that the falling NdFeB thin ribbon alloy fragments are guided to move to both sides, so as to make the NdFeB thin ribbon alloy fragments diffuse in the ethanol, and avoid the excessive heating of some ethanol, thereby ensuring the cooling efficiency of the NdFeB thin ribbon alloy fragments.

[0038] Secondly, the control system starts the motor 42, and the motor 42 starts to drive the elliptical plate 43 to rotate. The rotation of the elliptical plate 43 drives the round block 44 to rotate, and the round block 44 slides horizontally in the movable frame 45, thereby driving the movable frame 45 and the push rod 46 to move up and down. The push rod 46 moves up and down repeatedly to drive the first movable plate 21 to move up and down repeatedly; the first movable plate 21 moves upward to drive the elastic block 37 and the top plate 36 to move upward, and the upper ends of the top plate 36 are respectively in sliding contact with the inclined surfaces of the two first protrusions 38 that are close to each other, so that the top plate 36 moves upward to push the two sliders 34 away from each other, and the two sliders 34 move away from each other to drive the two elastic members 35 to move away from each other, and the two elastic members 35 move away from each other to push the two dial plates 33 to swing.

[0039] Again, the first movable plate 21 moves downward, driving the elastic block 37 and the top plate 36 to move downward, and the two paddle plates 33 swing back and forth under the action of gravity, so that the top plate 36 moves up and down repeatedly and the two sides of the upper end of the top plate 36 are in sliding contact with the inclined surfaces on one side that are close to the two first protrusions 38 respectively, so that the two paddle plates 33 swing back and forth, which is beneficial to disperse the falling NdFeB thin strip alloy fragments to both sides, thereby improving the effect of diffusing and falling the NdFeB thin strip alloy fragments.

[0040] At the same time, the top plate 36 moves up and down, driving several pairs of second protrusions 39 to move up and down, and the outer side of the first protrusion 38 slides in contact with the outer side of the second protrusion 39, so that 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 and in a small range at the same time, 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.

[0041] 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 drives the rotating plate 40 to swing, so as to increase the inclination angle of the rotating plate 40, which is beneficial for the iron-boron thin strip alloy fragments falling on the rotating plate 40 to tilt and move downward, and is beneficial for collecting and storing the cooled iron-boron 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 iron-boron thin strip alloy fragments and tilt and move them downward, and increase the swing amplitude of the two dial plates 33, so as to fully cool the iron-boron thin strip alloy fragments.

[0042] 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 inclination angle of the rotating plate 40, which is conducive to making the iron-boron thin strip alloy fragments falling on the rotating plate 40 move downward in an inclined manner. The two pressing plates 51 are close to each other to compress 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 spring 52, so that under the guiding action of the plurality of pairs of grooves 56 and the elastic force of the first spring 52, the two pressing plates 51 are alternately moved close to and away from each other, so that the two pressing plates 51 are moved close to and away from each other by a large amplitude while being moved close to and away from each other by a small amplitude, so that the rotating plate 40 is moved up and down by a small amplitude while being changed by a large amplitude, so that the iron boron thin strip alloy fragments are shaken and tilted downward; and further, the two shifting plates 33 are swung 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 falling neodymium iron boron thin strip alloy fragments to both sides, and further improving the effect of diffusing and falling the neodymium iron boron thin strip alloy fragments.

[0043] Next, the control system controls the inlet valve 58 to open, so that the coolant enters the second cooling chamber 61 through the inlet valve 58, and is staggered by a plurality of first baffles 63 and a plurality of pairs of second baffles 64, so that the second cooling chamber 61 forms an S-shaped channel, so as to extend the travel of the coolant in the second cooling chamber 61, and facilitate the coolant in the second cooling chamber 61 to heat exchange and cool down the ethanol in the processing tank 22, thereby maintaining the cooling effect of the ethanol on the NdFeB thin strip alloy fragments. The coolant is then discharged through the outlet valve 59, so that the coolant circulates in the second cooling chamber 61. The first movable plate 21 moves downward to allow 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 to move upward. The second movable plate 60 moves upward to drive a plurality of pairs of second baffles 64 to move upward, and the lower ends of the guide plates 68 are respectively in sliding contact with the upper end inclined surfaces of the two second baffles 64, so that under the guidance of the guide plates 68, the two second baffles 64 are moved away from each other, and the two second baffles 64 move away from each other to drive the two T-shaped sliders 66 to move away from each other, and the two T-shaped sliders 66 move away from each other to stretch the third spring 67 to generate elastic force. The second movable plate 60 moves upward to stretch the second spring 65 to generate elastic force. The first movable plate 21 moves upward to allow the coolant in the hydraulic chamber 62 to enter the hydraulic chamber 62 through the third connection port 69, so that the second movable plate 60 moves downward under the elastic force of the second spring 65. The second movable plate 60 moves downward, and under the elastic force of the third spring 67, the two T-shaped sliders 66 and the second baffle 64 move away from each other. In order to facilitate the up and down movement of the first movable plate 21 and the elastic force of the second spring 65, the second movable plate 60 is moved up and down, so as to promote the flow of the 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 temperature in the second cooling chamber 61 to be the same, 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, avoid the aggravation of ethanol evaporation consumption caused by high temperature, thereby ensuring the cooling efficiency of the NdFeB thin strip alloy fragments. Among them, by covering the foam plastic ball layer 24 on the upper side of ethanol in the processing tank 22, the consumption of ethanol due to evaporation can be significantly reduced, and at the same time, the spherical foam plastic ball layer 24 will not be adsorbed by the electromagnet 31, and will not affect the electromagnet 31 to carry the NdFeB thin strip alloy fragments.

[0044] Finally, the control system controls the two first stepper motors 27 to start, and the two first stepper motors 27 start to drive the two screw rods 28 to rotate, and the two ends of the movable block 29 are respectively in contact with the outer threads of the two screw rods 28, so that the movable block 29 moves horizontally. The movable block 29 moves to drive the electric telescopic rod 30 and the electromagnet 31 to move, and the electromagnet 31 moves to the top of the processing box 20. The electric telescopic rod 30 extends to drive the electromagnet 31 to move downward, and the electromagnet 31 is energized to generate magnetic force to adsorb the NdFeB thin strip alloy fragments on the upper side of the first movable plate 21 on the electromagnet 31. The electric telescopic rod 30 contracts to drive the electromagnet 31 to move upward, and the two screw rods 28 rotate to drive the movable block 29 and the electric telescopic rod 30 to move. The electric telescopic rod 30 moves to drive the electromagnet 31 to move to the top of the collection box 26, and the electromagnet 31 is powered off to make the NdFeB thin strip alloy fragments fall into the collection box 26 for storage, which is convenient for subsequent centralized processing.

[0045] The crushing and processing equipment and processing technology for NdFeB thin strip alloy sheet of the present invention, through the arrangement of the first guide block 32 and the paddle plate 33, the NdFeB thin strip alloy fragments fall into the processing tank 22 through the feeding pipe 19, and the upper tip of the first guide block 32 and the two paddle plates 33 are arranged obliquely, so that the NdFeB thin strip alloy fragments falling are guided to move to both sides, so as to make the NdFeB thin strip alloy fragments diffuse in ethanol, avoid excessive heating of some ethanol, and thus ensure the cooling efficiency of the NdFeB thin strip alloy fragments. Then, through the arrangement of the slider 34, the elastic member 35, and the top plate 36, the top plate 36 repeatedly moves up and down and the upper ends of the top plate 36 are respectively in sliding contact with the inclined surfaces of one side close to the two first protrusions 38, so that the two paddle plates 33 swing back and forth, which is conducive to paddle and disperse the NdFeB thin strip alloy fragments falling to both sides, and improve the effect of diffusion and falling of the NdFeB thin strip alloy fragments. Finally, by setting the first protrusion 38 and the second protrusion 39, the top plate 36 moves up and down, driving several pairs of second protrusions 39 to move up and down. The outer side of the first protrusion 38 slides in contact with the outer side of the second protrusion 39. Therefore, 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 and in a small range at the same time, 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.

[0046] The crushing and processing equipment and processing technology for NdFeB thin strip alloy sheets of the present invention are as follows: through the arrangement of a piston plate 48, a shell 49, a water bag 41, and a 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 water bag 41 expands and pushes the rotating plate 40 to swing, so as to increase the inclination angle of the rotating plate 40, which is beneficial for the NdFeB thin strip alloy fragments falling onto the rotating plate 40 to move downward and tilt, and is beneficial for collecting and storing the cooled NdFeB thin strip alloy fragments; and the first movable plate 21 moves up and down to drive 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 tilt them downward, and increase the swing amplitude of the two dial plates 33, so as to fully cool the NdFeB thin strip alloy fragments. Through the arrangement of the second guide block 55, the groove 56 and the pressure plate 51, the shell 49 moves downward to drive 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 to allow the coolant in the shell 49 to enter the water bag 41 through the second connecting port 53. The water bag 41 continues to expand, further increasing the inclination angle of the rotating plate 40, which is beneficial for the iron-boron thin strip alloy fragments that fall onto the rotating plate 40 to move downward in an inclined manner. 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 made to approach and move away from each other alternately, so that the two pressure plates 51 are made to approach each other greatly and to approach and move away from each other slightly alternately, so that the rotating plate 40 is made to change its angle greatly and to shake up and down slightly at the same time, so as to shake and tilt the NdFeB strip alloy fragments downward; and further, the two shifting plates 33 are made to swing back and forth greatly and to swing back and forth slightly at the same time, which is conducive to shifting and dispersing the NdFeB strip alloy fragments that have fallen to the sides, and further improving the effect of diffusing and falling the NdFeB strip alloy fragments.

[0047] The crushing and processing equipment and processing technology for NdFeB thin strip alloy sheets of the present invention are as follows: through the arrangement of a first baffle 63 and a second baffle 64, the coolant enters the second cooling chamber 61 through an inlet valve 58, and is staggeredly distributed through a plurality of first baffles 63 and a plurality of pairs of second baffles 64, so that the second cooling chamber 61 forms an S-shaped channel, so as to extend the travel of the coolant in the second cooling chamber 61, which is beneficial to the heat exchange and cooling effect of the coolant in the second cooling chamber 61 on the ethanol in the processing tank 22, thereby maintaining the cooling effect of the ethanol on the NdFeB thin strip alloy fragments. 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 and 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 and cool down with ethanol, so as to reduce the temperature of ethanol, thereby ensuring the cooling efficiency of the iron-boron thin strip alloy fragments.

[0048] The embodiments of the present invention are given for the purpose 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 of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A crushing and processing equipment for NdFeB thin strip alloy sheet, characterized in that: 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 material discharge funnel (18) is fixedly provided at the upper side of the inner part of the box body (10), a material discharge pipe (19) is provided at the lower side of the material discharge funnel (18), a cooling assembly is provided at one side of the lower part of the box body (10), a collecting box (26) is provided at the other side of the lower part of the box body (10), a movable block (29) is slidably provided inside the box body (10), an electric telescopic rod (30) is provided at 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 comprises a processing box (20), wherein the processing box (20) is located at the lower side of the interior of the box body (10), and a first movable plate (21) is obliquely provided inside the processing box (20). The interior of the processing box (20) is divided into a processing tank (22) and a first cooling chamber (23) by the first movable plate (21). 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 fixedly provided between the two side walls of the processing tank (22), and two shift plates (33) are rotatably provided on both sides of the first guide block (32). The first movable plate A rotating plate (40) is rotatably provided on the upper side of the rotating plate (40), an elastic block (37) is provided on the upper side of the elastic block (37), a top plate (36) is provided on the upper side of the elastic block (37), two sliding blocks (34) are slidably provided in the two side walls of the first guide block (32), two elastic members (35) are connected between the ends of the two sliding blocks (34) that are away from each other and one side of the two shifting plates (33), and the sides of the two sliding blocks (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).

2. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 1, characterized in that: Two first protrusions (38) are fixedly provided on the sides 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).

3. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 1, characterized in that: A fixed frame (47) is provided on the lower inner side of the first cooling chamber (23); a piston plate (48) is provided inside the fixed frame (47) for vertical sliding; a shell (49) is provided on the upper side of the piston plate (48); a first connecting port (50) is provided inside the shell (49) and connected to the lower inner side of the fixed frame (47); the upper end of the shell (49) is fixedly connected to the lower side of the first movable plate (21); and a second connecting port (53) is provided inside the shell (49) and connected to the inner side of the water bag (41).

4. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 3, characterized in that: Two pressure plates (51) are 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, 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).

5. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 4, characterized in that: A plurality of grooves (56) are provided on the inclined surfaces of the two second guide blocks (55) which 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 on the lower end of the push rod (46). The round block (44) slides horizontally inside the movable frame (45).

6. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 1, characterized in that: Two cooling boxes (57) are respectively provided on both sides of the processing box (20), and a second movable plate (60) is vertically slidably provided inside each cooling box (57). A hydraulic chamber (62) and a second cooling chamber (61) are separated inside each cooling box (57) by the second movable plate (60), and a third connecting port (69) is provided inside the hydraulic chamber (62) and connected to the inside of the first cooling chamber (23).

7. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 6, 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 arranged at intervals on the upper side of the interior of the second cooling chamber (61); a plurality of pairs of second baffles (64) are arranged 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 arranged at one end of the S-shaped channel in the second cooling chamber (61); and an outlet valve (59) is arranged at the other end of the S-shaped channel in the second cooling chamber (61).

8. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 7, characterized in that: Two T-shaped sliders (66) are fixedly provided 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 fixedly provided 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).

9. The crushing and processing equipment for NdFeB thin strip alloy sheet according to claim 1, characterized in that: Two first stepper motors (27) are symmetrically arranged at the lower part of the box body (10), and two screw rods (28) are respectively arranged at the output ends of the two first stepper motors (27). The two ends of the movable block (29) are respectively in contact with the outer threads of the two screw rods (28). A foam plastic ball layer (24) is arranged 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 in contact with the upper surface of the first movable plate (21). The crushing assembly comprises two rotating shafts (15), the two rotating shafts (15) are symmetrically distributed on the upper side of the interior of the housing (10), two crushing rollers (16) are respectively arranged on the outer sides of the two rotating shafts (15), a second stepping motor (14) is installed on one side of the exterior of the housing (10), the output end of the second stepping motor (14) is connected to one end of one of the rotating shafts (15) through a coupling, two gears (17) are respectively arranged 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.

10. A crushing process for NdFeB thin strip alloy sheet, characterized in that: The following steps are involved: S1: Crushing: Put the NdFeB thin strip alloy sheet into the crushing assembly, and crush the NdFeB thin strip alloy sheet by rotating two crushing rollers, and introduce argon protective gas into the crushing assembly to prevent the high-temperature alloy sheet from being oxidized during the crushing process; S2: Cooling. The crushed NdFeB alloy ribbon pieces fall into ethanol for cooling. Ethanol not only washes the tail gas to prevent the alloy dust in the tail 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: Dispersing, 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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