A sintered neodymium-iron-boron permanent magnet material manufacturing cast piece feeding device and method

Abstract

The application belongs to the technical field of magnet manufacturing, and particularly relates to a sintered neodymium-iron-boron permanent magnet material manufacturing casting piece feeding device and method. The sintered neodymium-iron-boron permanent magnet material manufacturing casting piece feeding device has the functions of stable conveying and convenient pouring. The device comprises a linear motor capable of rotating and swinging to adjust the conveying angle, a clamping assembly and the like. The linear motor is provided with a clamping assembly for clamping the upper port flange of a material bucket. During the gradual oblique upward movement of the lifting arm driven by the linear motor, the lifting arm can be cooperated with the turned limiting seat through the meshing transmission of the rack and pinion, so that the circumferential and up-down side clamping and limiting of the flange of the material bucket are realized, and then the slipping or shaking during the conveying and pouring can be effectively prevented, which is beneficial to significantly improving the operation safety and stability. In addition, the automatic turning and pouring function and the auxiliary supporting structure with the clamping hook hung on the bottom of the material bucket are integrated, which is beneficial to ensuring the stable conveying and convenient unloading of the casting piece material.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of magnet manufacturing, and particularly relates to a casting piece feeding device and method for sintered neodymium-iron-boron permanent magnet material manufacturing. BACKGROUND

[0002] In the hydrogen decrepitation process of the neodymium-iron-boron casting piece material, the casting piece material needs to be fed into a hydrogen decrepitation furnace for hydrogen decrepitation treatment. During the feeding process, workers usually use a travelling crane to hoist a material bucket containing the casting piece material to the feeding hopper of the hydrogen decrepitation furnace for addition. In order to facilitate the pouring of the casting piece material, the workers need to hoist the material bucket by binding the lifting belt of the travelling crane to the middle part of the material bucket in advance.

[0003] At present, during the hoisting process, the position and direction of the material bucket containing the casting piece material often need to be controlled by the workers in real time. The material bucket may shake during hoisting, which may cause the casting piece material or the material bucket to fall, thereby causing certain safety hazards to the workers below. In addition, after the casting piece material is hoisted to the designated position, the casting piece material in the material bucket needs to be poured into the feeding hopper of the hydrogen decrepitation furnace by manual assistance. The overall efficiency of this unloading method is low.

[0004] Therefore, the application provides a casting piece feeding device and method for sintered neodymium-iron-boron permanent magnet material manufacturing, which has the functions of stable conveying and convenient pouring, so as to improve the automation level, operation safety and production efficiency of the sintered neodymium-iron-boron material production process. SUMMARY

[0005] In order to overcome the shortcomings of certain safety hazards and low unloading efficiency when the casting piece material is transported and unloaded by using the existing hoisting method, the application provides a casting piece feeding device and method for sintered neodymium-iron-boron permanent magnet material manufacturing, which has the functions of stable conveying and convenient pouring.

[0006] In order to achieve the above object, the application adopts the following technical scheme: A casting piece feeding device for manufacturing sintered Nd-Fe-B permanent magnet material, comprising a rack, a feeding seat and a linear motor capable of rotating and swinging to adjust the conveying angle, the linear motor having a moving seat, further comprising a turnover assembly and a clamping assembly, the moving seat is provided with the clamping assembly for clamping the upper port flange of the material bucket, the clamping assembly comprises a lifting frame, a connecting shaft, a lifting arm and a rotating arm, the moving seat is fixedly connected with the lifting frame, the lifting frame is symmetrically connected with the connecting shaft on the lower side, the lifting arm is fixedly connected between the two connecting shafts, and the rotating arm is sleeved on the two connecting shafts, the turnover assembly for controlling the rotating angle of the lifting arm is arranged between the lifting frame and the rotating arm, the turnover assembly comprises a fixed shaft, a hydraulic cylinder and a rotating limiting piece, the fixed shaft is arranged on the upper part of the lifting frame, the hydraulic cylinder is rotatably connected on the fixed shaft, and the telescopic shaft end of the hydraulic cylinder is rotatably connected with one end of the rotating arm away from the connecting shaft, the lifting arm is further provided with the rotating limiting piece capable of turning and swinging, which is used for clamping the other side of the port flange of the material bucket in cooperation with the lifting arm.

[0007] As a further improvement of the above technical scheme, the rotating limiting piece comprises a rotating shaft, a connecting arm, a limiting seat and a pushing piece, the rotating shaft is rotatably connected on the upper side of the lifting arm, one end of the rotating shaft is fixedly connected with the connecting arm, one end of the connecting arm away from the rotating shaft is connected with the limiting seat, and the pushing piece is further arranged between the lifting arm and the rotating shaft for driving the limiting seat to turn to one side of the material bucket.

[0008] As a further improvement of the above technical scheme, the pushing piece comprises a gear, a guide rod, a pushing arm, a rack and a spring, the other end of the rotating shaft is sleeved with the gear through a spline, the lifting arm is slidably sleeved with the guide rod on one side, one end of the guide rod is connected with the pushing arm, one end of the pushing arm is connected with the rack meshing with the gear, the guide rod is further sleeved with the spring, one end of the spring is connected to the pushing arm, and the other end is connected to the lifting arm, when the guide rod is extruded to move, the pushing arm and the rack can be synchronously moved to enable the gear to drive the connecting arm and the limiting seat to synchronously turn to clamp the material bucket through the rotating shaft.

[0009] As a further improvement of the above technical scheme, further comprising a moving arm, a pull rod and a hook, the lifting arm is provided with the moving arm capable of horizontally sliding to adjust the position, and the moving arm and the guide rod are kept at the same horizontal position, when the moving arm is extruded to move to one side of the guide rod by the material bucket, the guide rod can be synchronously moved, the pull rod is movably arranged in the middle of the moving arm, and the lower end of the pull rod is provided with the hook for hooking the bottom flange of the material bucket to assist the material bucket to stably turn and pour.

[0010] As a further improvement of the above technical scheme, the feeding seat is provided with an inclined chute which is wide at the top and narrow at the bottom for positioning the material bucket, and an opening is formed on one side of the inclined chute for accommodating the hook.

[0011] As a further improvement of the above technical scheme, the electric slide rail, the adjusting frame and the supporting arm are further included, the one side of the discharging area of the linear motor is provided with the electric slide rail, the sliding seat of the electric slide rail is provided with the adjusting frame, the one side of the linear motor close to the electric slide rail is further rotationally connected with the supporting arm, the supporting arm is provided with the adjusting groove, and the lower end of the adjusting frame is movably sleeved in the adjusting groove.

[0012] As a further improvement of the above technical scheme, the electric slide rail, the adjusting frame and the supporting arm are further included, the electric slide rail, the adjusting frame and the supporting arm are further included, the one side of the discharging area of the linear motor is provided with the electric slide rail, the sliding seat of the electric slide rail is provided with the adjusting frame, the one side of the linear motor close to the electric slide rail is further rotationally connected with the supporting arm, the supporting arm is provided with the adjusting groove, and the lower end of the adjusting frame is movably sleeved in the adjusting groove.

[0013] A cast piece feeding method for manufacturing sintered neodymium iron boron permanent magnet material, comprising the following steps:

[0014] S1, the material bucket is placed on the discharging seat with the upper wide and lower narrow inclined groove at the bottom of the rack;

[0015] S2, the lifting frame is driven to rise by controlling the linear motor, so that the lifting arm can move obliquely upward and be clamped at the flange of the upper port of the material bucket, thereby realizing stable lifting and conveying of the material bucket obliquely upward;

[0016] S3, the driving shaft drives the connecting arm and the limiting seat to overturn to one side of the material bucket through the meshing transmission of the rack and the pinion under the pushing of the pushing piece, so that the limiting seat can be pressed on the other side of the upper end flange of the material bucket, thereby realizing double-sided clamping and clamping of the end of the material bucket, and ensuring stable and reliable clamping;

[0017] S4, as the lifting arm is gradually lifted, the pull rod can be tightened to hook and limit the bottom of the material bucket, thereby further improving the stability of the material bucket overturning and conveying process;

[0018] S5, when the material bucket is conveyed to the discharging area, the extension shaft of the hydraulic cylinder is shortened, the rotating arm, the connecting shaft and the lifting arm are synchronously overturned as a whole, so as to realize pouring of the cast piece material in the material bucket into the feed hopper of the hydrogen crusher.

[0019] The beneficial effects of the present application are: during the gradual oblique upward movement of the lifting arm driven by the linear motor, the lifting arm can cooperate with the overturned limiting seat through the meshing transmission of the rack and the pinion, realize the circumferential and upper and lower clamping and limiting of the flange of the material bucket, thereby effectively preventing slipping or shaking during conveying and pouring, and being conducive to significantly improving the operation safety and stability; and by integrating the automatic overturning and pouring function and the auxiliary supporting structure with the hook on the bottom of the material bucket, the stable conveying and convenient discharging of the cast piece material are ensured, thereby reducing manual intervention, improving production efficiency and safety. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the three-dimensional structure of the present application.

[0021] Figure 2 is a schematic view of the three-dimensional structure of the present application.

[0022] Figure 3 is a schematic view of the three-dimensional structure of the present application.

[0023] Figure 4 is a schematic view of the three-dimensional structure of the present application.

[0024] Figure 5 is a schematic view of the three-dimensional structure of the present application.

[0025] Figure 6 is a schematic view of the three-dimensional structure of the present application.

[0026] Figure 7 is a schematic view of the three-dimensional structure of the present application.

[0027] Figure 8 is a schematic view of the three-dimensional structure of the present application.

[0028] Figure 9 is a schematic view of the three-dimensional structure of the present application.

[0029] Figure 10 is a schematic view of the three-dimensional structure of the present application.

[0030] The marks in the drawings: 1- rack, 2- material placing seat, 3- linear motor, 30- moving seat, 31- air cylinder, 32- grooved swing arm, 33- adjusting rod, 4- lifting frame, 40- fixed shaft, 5- connecting shaft, 6- lifting arm, 7- rotating arm, 8- hydraulic cylinder, 9- moving arm, 10- pull rod, 11- hook, 12- inclined groove, 13- opening, 14- rotating shaft, 15- connecting arm, 16- limiting seat, 17- gear, 18- guide rod, 19- push arm, 20- rack, 21- spring, 22- electric sliding rail, 23- adjusting frame, 24- supporting arm, 25- adjusting groove, a- material bucket. DETAILED DESCRIPTION

[0031] First embodiment: the present application provides a casting piece feeding device for manufacturing sintered neodymium iron boron permanent magnet material, which comprises Figures 1 to 9As shown, including organic frame 1, discharge seat 2, linear motor 3, turnover assembly and clamping assembly, the bottom rear side of the frame 1 is provided with a discharge seat 2 for placing the material barrel a, and the discharge seat 2 is provided with an upper wide and lower narrow inclined chute 12 for positioning the material barrel a, through the inclined chute 12, the material barrel a can be quickly positioned, ensuring that the loading position is consistent every time, which is beneficial to improve the operation consistency; the upper part of the frame 1 is provided with a linear motor 3 capable of rotating and swinging to adjust the conveying angle through a rotating shaft, the linear motor 3 has a moving seat 30, wherein the side of the linear motor 3 away from the frame 1 is the discharge area; the moving seat 30 is provided with a clamping assembly for clamping the upper port flange of the material barrel a, the clamping assembly comprises a lifting frame 4, a connecting shaft 5, a lifting arm 6 and a rotating arm 7, the moving seat 30 is fixedly connected with the lifting frame 4, the lifting frame 4 is symmetrically connected with the connecting shaft 5 at the lower side, and the U-shaped lifting arm 6 is fixedly connected between the two connecting shafts 5, wherein the distance between the two arms of the U-shaped lifting arm 6 is slightly larger than the outer diameter of the barrel body of the material barrel a and smaller than the outer diameter of the flange; the rotating arm 7 is further sleeved with the connecting shaft 5 through the spline, and the lifting frame 4 and the rotating arm 7 are provided with a turnover assembly for controlling the rotation angle of the lifting arm 6, the turnover assembly comprises a fixed shaft 40, a hydraulic cylinder 8 and a rotation limiting piece, the upper part of the lifting frame 4 is provided with the fixed shaft 40, the hydraulic cylinder 8 is rotatably connected to the fixed shaft 40, and the telescopic shaft end of the hydraulic cylinder 8 is rotatably connected to the end of the rotating arm 7 away from the connecting shaft 5, the lifting arm 6 is further provided with a rotating limiting piece capable of turning and swinging, which is used for clamping the other side of the port flange of the material barrel a in cooperation with the lifting arm 6; through the double cooperation of the U-shaped lifting arm 6 and the rotating limiting piece, the stability of the material barrel a during conveying and turning can be ensured.

[0032] As shown in Figures 5 to 9 The rotating limiting piece comprises a rotating shaft 14, a connecting arm 15, a limiting seat 16 and a pushing piece, the rotating shaft 14 is rotatably connected to the upper side of the lifting arm 6, one end of the rotating shaft 14 is fixedly connected with the connecting arm 15, the connecting arm 15 is connected with the U-shaped limiting seat 16 away from the rotating shaft 14, and the inner side of the limiting seat 16 is designed as an L-shaped structure, which is beneficial to clamp and limit the flange at the upper end of the material barrel a; the pushing piece is further arranged between the lifting arm 6 and the rotating shaft 14, which is used to drive the limiting seat 16 to turn to one side of the material barrel a; through the cooperation of the lifting arm 6 and the rotating limiting piece, the material barrel a can be effectively prevented from slipping or shaking during conveying, thereby improving the operation safety.

[0033] As shown in Figures 5 to 9As shown, the pushing member includes a gear 17, a guide rod 18, a pushing arm 19, a rack 20 and a spring 21, the other end of the rotating shaft 14 is sleeved with the gear 17 through a spline, the lifting arm 6 is sleeved with the guide rod 18 on one side, the guide rod 18 is connected with the pushing arm 19 on one end, the pushing arm 19 is connected with the rack 20 engaged with the gear 17 on one end, the guide rod 18 is further sleeved with the spring 21, one end of the spring 21 is connected to the pushing arm 19, and the other end is connected to the lifting arm 6, the spring 21 is a tension spring, which is used for resetting the guide rod 18, the pushing arm 19 and the rack 20; when the guide rod 18 is extruded and moved, the pushing arm 19 and the rack 20 can be driven to move synchronously, so that the gear 17 can drive the connecting arm 15 and the limiting seat 16 to overturn synchronously to clamp the material barrel a.

[0034] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9 , further comprising a moving arm 9, a pull rod 10 and a hook 11, the lifting arm 6 is provided with the moving arm 9 capable of sliding horizontally to adjust the position, and the moving arm 9 and the guide rod 18 are kept at the same horizontal position, when the moving arm 9 is extruded by the material barrel a to move to one side of the guide rod 18, the guide rod 18 can be pushed to move synchronously, the pull rod 10 is movably arranged in the middle of the moving arm 9, the pull rod 10 is provided with the hook 11 for hooking the convex ring at the bottom of the material barrel a, and the inclined chute 12 is provided with the opening 13 for accommodating the hook 11 on one side, the pull rod 10 and the hook 11 can be pushed to the side of the material barrel a when the material barrel a is placed, so that the hook 11 can be accommodated in the opening 13, which is conducive to hanging the hook 11 in the inside of the convex ring at the bottom of the material barrel a; through the auxiliary support structure of the integrated overturning assembly, the pull rod 10 and the hook 11, the material barrel a can be automatically and smoothly poured, manual intervention is reduced, and the degree of automation and production efficiency are improved.

[0035] First, the material bucket a containing the casting piece material is placed on the material placing seat 2 at the bottom of the frame 1, the bottom of the material bucket a is embedded in the chute 12 of the material placing seat 2, and rapid positioning is realized; then the linear motor 3 is started to drive the moving seat 30 to rise; because the U-shaped lifting arm 6 is located at one side below the material bucket a at the initial time, and the distance between the two arms of the U-shaped lifting arm 6 is slightly greater than the outer diameter of the barrel body of the material bucket a and less than the outer diameter of the flange above the material bucket a, when the clamping assembly moves obliquely upward along the linear motor 3 to the flange of the material bucket a, the U-shaped lifting arm 6 is just clamped into the lower side of the flange; as the linear motor 3 continues to lift, the moving arm 9 is pressed by the material bucket a and moves to one side of the guide rod 18, at the same time, the moving arm 9 also gradually moves upward along the pull rod 10 with the lifting of the lifting arm 6, and the guide rod 18 drives the pushing arm 19 and the rack 20 to move synchronously, and the spring 21 is stretched; through the meshing transmission of the rack 20 and the gear 17, the driving rotating shaft 14 drives the connecting arm 15 and the limiting seat 16 to overturn to one side of the material bucket a, so that the limiting seat 16 tightly presses the other side of the flange, and forms a closed clamping structure with the lifting arm 6, realizes bilateral clamping of the end of the material bucket a, ensures firm and stable clamping, and is beneficial to stable overturning; at the same time, the clamping hook 11 is hung in the inner side of the flange at the bottom of the material bucket a, and as the lifting arm 6 lifts, when the upper end of the pull rod 10 is completely hung on the moving arm 9, the clamping hook 11 will be pulled tight and can realize auxiliary hooking and limiting of the bottom of the material bucket a, which is beneficial to further improve the overturning stability; when the material bucket a is conveyed to the unloading area, the telescopic shaft of the hydraulic cylinder 8 is controlled to shorten, the rotary arm 7, the connecting shaft 5 and the lifting arm 6 are pulled to overturn as a whole, and the casting piece material is poured into the hydrogen crusher feed hopper; after the pouring of the casting piece material is completed, the moving seat 30 is controlled to reset; when the material bucket a is returned to the chute 12 of the material placing seat 2, the lifting arm 6 gradually separates from the flange during the obliquely downward movement, under the resetting action of the spring 21, the pushing arm 19 and the guide rod 18 retreat, through the transmission of the rack 20 and the gear 17, the limiting seat 16 is driven to rotate reversely and reset, and the moving arm 9, the pull rod 10 and the clamping hook 11 also return to the initial position, preparing for the next feeding and realizing continuous operation; the device can significantly reduce the labor intensity of workers and improve the overall operation efficiency and stability.

[0036] Second specific embodiment: on the basis of the first specific embodiment, as Figure 1 , Figure 8 and Figure 10As shown, it also includes electric slide rail 22, adjusting frame 23 and support arm 24, the discharge area side of linear motor 3 is provided with electric slide rail 22, the sliding seat of electric slide rail 22 is provided with adjusting frame 23, the side close to electric slide rail 22 of linear motor 3 is also rotationally connected with support arm 24, adjusting groove 25 is opened on support arm 24, and the lower end of adjusting frame 23 is movably sleeved in adjusting groove 25; it also includes cylinder 31 for adjusting the conveying angle of linear motor 3, slotted swing arm 32 and adjusting rod 33, cylinder 31 is installed on the front side of the bottom of rack 1, the telescopic shaft end of cylinder 31 is provided with adjusting rod 33, the both ends of the rotating shaft on the upper part of rack 1 are respectively provided with slotted swing arm 32, and adjusting rod 33 is movably arranged on slotted swing arm 32; by controlling the lifting of cylinder 31, the conveying angle of linear motor 3 can be adjusted, and by controlling electric slide rail 22 to drive support arm 24 to swing and adjust the angle, the discharge area of linear motor 3 can be supported, the conveying and discharging requirements under different working conditions can be met, and the flexibility is high.

[0037] In addition, during the pouring of the cast piece material, the adjusting frame 23 can be moved by controlling the electric slide rail 22 to drive the support arm 24 to abut against the feed hopper, so as to provide additional stable support force for the discharge area, so as to ensure stable and reliable pouring during the pouring process; at the same time, by controlling the cylinder 31 to drive the adjusting rod 33 to push the slotted swing arm 32 and the rotating shaft to rotate, the inclination angle of the linear motor 3 can be flexibly adjusted, which is conducive to adapting to the conveying requirements of different heights. The overall structure of the device has high integration, smooth linkage of each action, is suitable for continuous and automatic operation of the sintered neodymium-iron-boron production line, is conducive to reducing labor intensity and improving production efficiency.

[0038] A cast piece feeding method for manufacturing sintered neodymium-iron-boron permanent magnet material, comprising the following steps:

[0039] S1, place the bucket a on the discharging seat 2 with the upper wide and lower narrow chute 12 at the bottom of the rack 1, so as to realize accurate and rapid positioning;

[0040] S2, control the linear motor 3 to drive the lifting frame 4 to rise, so that the lifting arm 6 of the U-shaped structure can be moved obliquely upward and clamped at the flange above the port of the bucket a, so as to realize stable lifting and conveying of the bucket a obliquely upward;

[0041] S3, the pushing piece is pushed by the bucket a, is driven by the meshing transmission of the rack 20 and the gear 17, drives the rotating shaft 14 to drive the connecting arm 15 and the limiting seat 16 to overturn to one side of the bucket a, so that the limiting seat 16 can just press the other side of the upper flange of the bucket a, so as to realize double-sided clamping and clamping of the end of the bucket a, and ensure stable and reliable clamping;

[0042] S4, with the gradual lifting of the lifting arm 6, the pull rod 10 can be pulled tight to limit the hooking of the bottom of the bucket a, to further improve the stability of the overturning and conveying process of the bucket a;

[0043] S5, when conveying the bucket a to the unloading area, the extension shaft of the hydraulic cylinder 8 is shortened, the rotating arm 7, the connecting shaft 5 and the lifting arm 6 are pulled to overturn synchronously as a whole, so as to realize the pouring of the cast piece material in the bucket a into the feed hopper of the hydrogen crusher, that is, the stable and convenient directional conveying and automatic unloading of the cast piece material filled in the bucket a are completed.

Claims

1. A sintered neodymium-iron-boron permanent magnet material manufacturing strip feeding device, comprising a frame (1), a feeding seat (2) and a linear motor (3) capable of rotating and swinging to adjust the conveying angle, the linear motor (3) having a moving seat (30), characterized in that: The utility model also includes the turnover assembly and the clamping assembly, the mobile seat (30) is provided with the clamping assembly for clamping the upper end port flange of material bucket a, the clamping assembly includes the lifting frame (4), the connecting shaft (5), the lifting arm (6) and the rotary arm (7), the mobile seat (30) is fixedly connected with the lifting frame (4), the lifting frame (4) lower side symmetry type rotationally connected with the connecting shaft (5), two connecting shafts (5) between fixedly connected with the lifting arm (6), two connecting shafts (5) still have the rotary arm (7) of sleeve joint, the lifting frame (4) with rotary arm (7) between setting is used for controlling the rotation angle of lifting arm (6) turnover assembly, the turnover assembly includes the fixed shaft (40), the hydraulic cylinder (8) and the rotation limiting piece, the lifting frame (4) upper portion is provided with fixed shaft (40), the fixed shaft (40) rotationally connected with the hydraulic cylinder (8), and the telescopic axle end of hydraulic cylinder (8) is rotationally connected with rotary arm (7) away from one end of connecting shaft (5), the lifting arm (6) is also provided with the rotation limiting piece of the turnover swing, for clamping the other side of the port flange of material bucket a to lifting arm (6); The rotation limiting piece includes the rotation shaft (14), the connecting arm (15), the limiting seat (16) and the pusher, the lifting arm (6) upper side rotationally connected with the rotation shaft (14), the rotation shaft (14) one end fixedly connected with the connecting arm (15), the connecting arm (15) away from the one end of rotation shaft (14) is connected with the limiting seat (16), the lifting arm (6) with rotation shaft (14) between still being provided with the pusher, for driving the limiting seat (16) to the one side of material bucket a overturns; The pusher includes the gear (17), the guide rod (18), the push arm (19), the rack (20) and the spring (21), the other end of rotation shaft (14) is through the spline sleeve and is provided with gear (17), the one side of lifting arm (6) is slidably provided with guide rod (18), the one end of guide rod (18) is connected with push arm (19), the one end of push arm (19) is connected with the rack (20) engaged with gear (17), the guide rod (18) is also provided with the spring (21) of sleeve setting, the one end of spring (21) is connected on the push arm (19), the other end is connected on the lifting arm (6), when the guide rod (18) is extruded and moves, can drive push arm (19) and rack (20) synchronous movement, to make gear (17) can pass through rotation shaft (14) drive connecting arm (15) and limiting seat (16) synchronous overturning clamp material bucket a.

2. The strip feeding device for manufacturing sintered Nd-Fe-B permanent magnet according to claim 1, characterized in that: Also includes the moving arm (9), the pull rod (10) and the clamping hook (11), the lifting arm (6) is provided with the moving arm (9) that can horizontally slide and adjust position, and the moving arm (9) and guide rod (18) keep in the same horizontal position, when the moving arm (9) is extruded and moves to the one side of guide rod (18) by material bucket a, can push guide rod (18) synchronous movement, the pull rod (10) is movably provided in the middle of moving arm (9), the lower end of pull rod (10) is provided with the clamping hook (11) for hooking the bottom flange of material bucket a, to assist material bucket a steady overturning and dumping.

3. The strip feeding device for manufacturing sintered Nd-Fe-B permanent magnet according to claim 2, characterized in that: The feeding seat (2) is provided with an inclined chute (12) which is wide at the top and narrow at the bottom, used for positioning the material barrel a, and the inclined chute (12) is provided with an opening (13) on one side for accommodating the clasp (11).

4. The strip feeding device for manufacturing sintered Nd-Fe-B permanent magnet according to claim 1, characterized in that: Further comprising an electric slide rail (22), an adjusting frame (23) and a supporting arm (24), the discharge area of the linear motor (3) is provided with the electric slide rail (22), the slide seat of the electric slide rail (22) is provided with the adjusting frame (23), and the side close to the electric slide rail (22) of the linear motor (3) is further rotationally connected with the supporting arm (24), the supporting arm (24) is provided with an adjusting groove (25), and the lower end of the adjusting frame (23) is movably sleeved in the adjusting groove (25).

5. The strip feeding device for manufacturing sintered Nd-Fe-B permanent magnet according to claim 1, characterized in that: Further comprising a pneumatic cylinder (31), a slotted swing arm (32) and an adjusting rod (33), the other side of the bottom of the rack (1) is provided with the pneumatic cylinder (31), the telescopic shaft end of the pneumatic cylinder (31) is provided with the adjusting rod (33), and the two ends of the rotating shaft of the upper part of the rack (1) are respectively provided with the slotted swing arm (32), and the adjusting rod (33) is movably arranged on the slotted swing arm (32), used for adjusting and controlling the inclination angle of the linear motor (3).

6. A method for feeding a casting slab for manufacturing a sintered Nd-Fe-B permanent magnet material, based on the casting slab feeding apparatus according to claim 3, characterized by: The method comprises the following steps: S1, placing the material barrel a on the feeding seat (2) provided with the inclined chute (12) which is wide at the top and narrow at the bottom on the bottom of the rack (1); S2, lifting the lifting frame (4) by controlling the linear motor (3) to make the lifting arm (6) move obliquely upward and be clamped at the flange of the upper port of the material barrel a, so as to realize the stable lifting and conveying of the material barrel a obliquely upward; S3, driving the rotating shaft (14) to drive the connecting arm (15) and the limiting seat (16) to overturn to one side of the material barrel a through the meshing transmission of the rack (20) and the gear (17), so that the limiting seat (16) can be tightly pressed on the other side of the upper flange of the material barrel a, to realize the double-sided clamping and clamping of the end of the material barrel a, and ensure the stable and reliable clamping; S4, with the gradual lifting of the lifting arm (6), the tension rod (10) can be pulled tight to hook and limit the bottom of the material barrel a, to further improve the stability of the overturning and conveying process of the material barrel a; S5, when the material barrel a is conveyed to the discharge area, the telescopic shaft of the hydraulic cylinder (8) is shortened to pull the rotary arm (7), the connecting shaft (5) and the lifting arm (6) to overturn synchronously, so as to realize the pouring of the cast piece material in the material barrel a into the feeding hopper of the hydrogen crusher.

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