Inert gas air cooling device for neodymium iron boron sintering

Abstract

The utility model relates to an inert gas air cooling device for neodymium iron boron sintering. The inert gas air cooling device comprises a base, a box body, a feeding pipe, an inert gas conveyor, a spray pipe, an outer guide frame and the like, a box body is installed at the top of the base, a feeding pipe used for inputting neodymium iron boron into the box body is arranged on the box body, an inert gas conveyor is arranged on the box body, the inert gas conveyor is communicated with a spraying pipe arranged at the bottom of the inner side of the box body, spraying heads are evenly arranged on the spraying pipe at intervals, and gas sprayed out of the spraying heads is used for conducting air cooling on the neodymium iron boron. A motor is installed in the center of the top of the base, an output shaft of the motor is connected with a rotating frame, connecting blocks are evenly arranged on the circumferential outer wall of the rotating frame at intervals, and an arc-shaped material supporting plate is movably arranged between every two adjacent connecting blocks. The inert gas conveyor inputs inert gas into the spray pipe, the spray pipe directly blows the inert gas to the surface of neodymium iron boron through the spray head, and therefore the effect of efficient and sufficient air cooling of neodymium iron boron is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to neodymium iron boron sintering technical field, concretely relates to a kind of inert gas air cooling device for neodymium iron boron sintering. BACKGROUND

[0002] Neodymium iron boron is a kind of strong magnetic rare earth permanent magnet material, is widely used in motor, generator, sensor and other high-tech products.In the production process of neodymium iron boron, especially after sintering stage, it needs to be cooled.Neodymium iron boron sintering inert gas air cooling device is specially designed for the cooling stage of neodymium iron boron material in sintering process.

[0003] The existing inert gas air cooling device generally sends inert gas into the cooling box body by air supply device, to cool the neodymium iron boron inside the cooling box body, but this kind of air cooling mode cannot ensure that inert gas can uniformly and fully cover each part of the inside of cooling box, causing the cooling speed of neodymium iron boron inside the cooling box to be inconsistent, thus leading to the difference of magnet performance;And after the cooling of neodymium iron boron inside the cooling box is completed, it needs to stop and unload, causing the defect of poor continuity.

[0004] Therefore, it is necessary to design a neodymium iron boron sintering inert gas air cooling device with good continuity, high cooling efficiency and sufficient cooling of neodymium iron boron. UTILITY MODEL CONTENTS

[0005] Technical scheme is: a kind of inert gas air cooling device for neodymium iron boron sintering, including base, box, feed pipe, inert gas conveyor, spray pipe, outer guide frame, inner guide frame, motor, rotating frame, connecting block and arc material supporting plate, base top is equipped with box, box is equipped with the feed pipe for inputting neodymium iron boron to its inside, box is equipped with inert gas conveyor, inert gas conveyor is communicated with the spray pipe being set to the inside bottom of box, spray pipe is uniformly equipped with spray head, the gas for being sprayed to neodymium iron boron is used to air cooling cooling, the center of base top is equipped with motor, the output shaft of motor is connected with rotating frame, rotating frame is uniformly equipped with connecting block on the circumferential outer wall, arc material supporting plate is movably arranged between the two connecting blocks, arc material supporting plate is hinged with a connecting block, base is equipped with outer guide frame and inner guide frame of different diameters, outer guide frame, inner guide frame and the spray head on spray pipe are all arranged below arc material supporting plate.

[0006] Further, arc-shaped notches are formed on the outer guide frame and the inner guide frame.

[0007] Further, the arc-shaped material supporting plate is provided with rollers that roll with the top surfaces of the outer guide frame and the inner guide frame.

[0008] Further, the adjacent two connecting blocks are uniformly and spacedly provided with a poking rod, one end of the poking rod movably penetrating the rotating frame and extending into the rotating frame is connected with a wedge-shaped block, the first elastic member is arranged between the wedge-shaped block and the inner wall of the rotating frame, and the base is uniformly and spacedly provided with a contact rod.

[0009] Further, the outer wall of the poking rod is staggeredly provided with a protrusion.

[0010] Further, the base side wall opening is rotationally provided with an inclined plate, the inclined plate is arranged below the arc-shaped notch of the outer guide frame and the inner guide frame, and the second elastic member is arranged between the inclined plate bottom and the base.

[0011] Further, the outer guide frame and the inner guide frame are provided with a baffle, and the baffle is arranged on both sides of the arc-shaped notch.

[0012] The utility model discloses a beneficial effect: 1, inert gas conveyor imports inert gas into the spray pipe, and the spray pipe blows inert gas directly to the surface of the neodymium iron boron through the spray head, so as to realize the effect of high efficiency and sufficient air cooling of the neodymium iron boron.

[0013] 2, the motor drives the rotating frame to rotate counterclockwise, so as to drive the arc-shaped material supporting plate to move along the surface of the outer guide frame and the inner guide frame through the roller, when the roller moves to the arc-shaped notch of the outer guide frame and the inner guide frame, the arc-shaped material supporting plate is inclined to the arc-shaped notch, so as to unload the neodymium iron boron material on the arc-shaped material supporting plate to the space between the outer guide frame and the inner guide frame, and guide the material to the collecting space through the inclined plate for collection, so as to efficiently collect the neodymium iron boron material after cooling.

[0014] 3, the poking rod moves with the rotating frame, when the wedge-shaped block contacts the contact rod, under the blocking action of the contact rod, the wedge-shaped block drives the poking rod to move away from the rotating frame and extrudes the first elastic member, when the wedge-shaped block moves away from the contact rod, the poking rod and the wedge-shaped block reset, and the neodymium iron boron material on the arc-shaped material supporting plate is dispersed through the reciprocating movement of the poking rod, so as to avoid its accumulation, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a part of three-dimensional structure schematic view of the utility model.

[0017] Figure 3 It is a three-dimensional structure schematic view of the base, rotating frame, connecting block, arc-shaped material supporting plate and other parts of the utility model.

[0018] Figure 4 It is a three-dimensional structure schematic view of the outer guide frame, inner guide frame, baffle and arc-shaped material supporting plate of the utility model.

[0019] Figure 5 It is the three-dimensional structure schematic view of the inside parts of the box of the utility model.

[0020] Figure 6 It is the three-dimensional structure schematic view of the utility model's stirring rod, wedge and first elastic piece.

[0021] Figure 7 It is the three-dimensional structure schematic view of the utility model's inclined plate and second elastic piece.

[0022] Reference Signs: 1_base, 2_box, 3_feed pipe, 4_inert gas conveyor, 5_nozzle, 6_

[0023] Outer guide frame, 61_inner guide frame, 62_baffle, 7_motor, 8_rotary frame, 81_connection block, 9_arc-shaped material supporting plate, 10_roller, 11_stirring rod, 12_wedge, 121_contact rod, 13_first elastic piece,

[0024] 14_inclined plate, 15_second elastic piece. DETAILED DESCRIPTION

[0025] The utility model will be further explained below in combination with the drawings and examples.

[0026] Example: a kind of inert gas air cooling device for neodymium iron boron sintering, as shown in Figures 1-4As shown, including the base 1, box 2, feed pipe 3, inert gas conveyor 4, nozzle 5, outer guide frame 6, inner guide frame 61, motor 7, rotating frame 8, connecting block 81 and arc-shaped material plate 9, the base 1 top is provided with the box 2, the box 2 is bottom opening, hollow inside the circular arrangement, the box 2 is provided with the feed pipe 3 for the neodymium iron boron into its inside, the box 2 is provided with the inert gas conveyor 4, the inert gas conveyor 4 is used for collecting inert gas and its inside is provided with a fan, the inert gas conveyor 4 is communicated with the nozzle 5 provided in the inside bottom of the box 2, the fan inputs the nozzle 5 after compressing the inert gas, the nozzle 5 is uniformly provided with a spray head, the spray hole of the spray head is upwardly arranged, the gas sprayed by the spray head is used for air cooling of the neodymium iron boron, the base 1 top center is provided with the motor 7, the output shaft of the motor 7 is connected with the rotating frame 8, the rotating frame 8 includes a cross connected with the output shaft of the motor 7 and a circular tube connected with the cross, the circumferential outer wall of the circular tube in the rotating frame 8 is uniformly provided with the connecting block 81, the adjacent two connecting blocks 81 are movably provided with the arc-shaped material plate 9, the arc-shaped material plate 9 is arranged with a through hole, the arc-shaped material plate 9 is arranged below the feed pipe 3, the arc-shaped material plate 9 is used for placing the neodymium iron boron material input from the feed pipe 3, the arc-shaped material plate 9 is hinged with a connecting block 81, the base 1 is provided with the outer guide frame 6 and the inner guide frame 61 with different diameters, the outer guide frame 6 and the inner guide frame 61 are concentric circles, the outer guide frame 6, the inner guide frame 61 and the spray head on the nozzle 5 are all arranged below the arc-shaped material plate 9, in use, the inert gas sprayed by the spray head on the nozzle 5 acts on the neodymium iron boron material through the through hole of the arc-shaped material plate 9, thereby cooling the neodymium iron boron material.

[0027] Further, as shown in Figure 3 and Figure 4 , the outer guide frame 6 and the inner guide frame 61 are correspondingly provided with arc-shaped notches, which facilitate the downward inclination of the arc-shaped material plate 9, thereby facilitating the unloading of the arc-shaped material plate 9.

[0028] Further, as shown in Figure 4 , the arc-shaped material plate 9 is provided with a roller 10 rolling with the top surface of the outer guide frame 6 and the inner guide frame 61, the arrangement of the roller 10 greatly reduces the friction between the arc-shaped material plate 9 and the top surface of the outer guide frame 6 and the inner guide frame 61, thereby facilitating the movement of the arc-shaped material plate 9 along the top surface of the outer guide frame 6 and the inner guide frame 61.

[0029] Further, as shown in Figure 1 andFigure 7 As shown, the base 1 side wall opening is provided with a slope plate 14, which is arranged below the arc-shaped notch of the outer guide frame 6 and the inner guide frame 61, and the top of the base 1 is provided with an opening between the arc-shaped notch of the outer guide frame 6 and the inner guide frame 61, the slope plate 14 is arranged directly below the opening of the top of the base 1, the slope plate 14 is inclined downward from inside to outside, and the second elastic element 15 is arranged between the outer side of the slope plate 14 and the base 1, which is a rubber element or a spring with elastic properties. In the initial state, the slope plate 14 covers the opening at the top of the base 1, when the material on the arc-shaped material plate 9 is discharged onto the slope plate 14, under the action of gravity, the slope plate 14 compresses the second elastic element 15 downward, so that the slope plate 14 is inclined downward, thereby guiding the material on the slope plate to the designated collection place.

[0030] Further, as shown in Figure 3 and Figure 4 The outer guide frame 6 and the inner guide frame 61 are provided with a baffle 62, which is arranged on both sides of the arc-shaped notch, and the baffle 62 is arranged on both sides of the arc-shaped notch, which is used to block the material discharged from the arc-shaped discharge plate 9, so that the material is conveyed to the slope plate 14 through the opening at the top of the base 1.

[0031] In use, neodymium iron boron material is input through the feeding pipe 3 into the arc-shaped material plate 9 inside the box 2, inert gas (such as argon or helium) is introduced from the inert gas conveyor 4 and sprayed through the spray pipe 5 and the spray head thereon, since the spray head is arranged below the arc-shaped material plate 9 and the spray port of the spray head faces the arc-shaped material plate 9, the inert gas sprayed by the spray head directly acts on the neodymium iron boron on the arc-shaped material plate 9, thereby cooling the neodymium iron boron by air cooling; the motor 7 is energized to drive the rotating frame 8 to rotate counterclockwise, the rotating frame 8 rotates to drive the connecting block 81 mounted on the outer wall thereof and the arc-shaped material plate 9 mounted on the connecting block 81 to rotate circumferentially around the motor 7, the roller 10 rolls along the top surface of the outer guide frame 6 and the inner guide frame 61, when the roller 10 rolls along the top surface of the outer guide frame 6 and the inner guide frame 61 to the arc-shaped notch, as the roller 10 enters the arc-shaped notch, the arc-shaped material plate 9 rotates downward around the hinge between the arc-shaped material plate 9 and the connecting block 81, so that the arc-shaped material plate 9 is inclined to the arc-shaped notch, and the neodymium iron boron material on the arc-shaped material plate 9 falls downward between the outer guide frame 6 and the inner guide frame 61 along the inclined arc-shaped material plate 9, and is collected by the slope plate 14, thereby efficiently collecting the cooled neodymium iron boron material.

[0032] Further, as Figure 5 and Figure 6 shown, the adjacent two connecting blocks 81 are uniformly spaced with a poking rod 11, the outer wall of the poking rod 11 is staggered with a conical protrusion, one end of the poking rod 11 movably penetrates the rotating frame 8 and extends into the inside of the rotating frame 8 and is connected with a wedge-shaped block 12, the first elastic member 13 is arranged between the wedge-shaped block 12 and the inner wall of the rotating frame 8, the base 1 is uniformly spaced with a contact rod 121, the contact rod 121 can be extruded with the wedge-shaped block 12, when the rotating frame 8 rotates, the wedge-shaped block 12 is extruded with the contact rod 121 through the blocking action of the contact rod 121, so that the poking rod 11 performs horizontal reciprocating motion, so as to disperse the material on the arc-shaped material supporting plate 9, so as to avoid material accumulation.

[0033] When the motor 7 drives the rotating frame 8 to rotate, the poking rod 11 rotates with the rotating frame 8, when the inclined surface of the wedge-shaped block 12 on the poking rod 11 contacts the contact rod 121, with the continuous rotation of the rotating frame 8, under the blocking action of the contact rod 121, the inclined surface of the wedge-shaped block 12 moves along the surface of the contact rod 121, and the wedge-shaped block 12 pushes the poking rod 11 to move away from the motor 7 and compresses the first elastic member 13, with the rotating movement of the rotating frame 8, when the contact rod 121 no longer blocks the wedge-shaped block 12, under the action of the elasticity of the first elastic member 13, the poking rod 11 and the wedge-shaped block 12 reset, through the horizontal reciprocating motion of the poking rod 11, the neodymium iron boron material on the arc-shaped material supporting plate 9 is dispersed, so as to avoid the neodymium iron boron material to be piled up, so as to improve the air cooling effect.

[0034] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An inert gas air-cooling device for NdFeB sintering, comprising a base (1), a housing (2), a feed pipe (3), and an inert gas conveyor (4), wherein the housing (2) is mounted on the top of the base (1), the housing (2) is provided with a feed pipe (3) for feeding NdFeB into its inner side, and the housing (2) is provided with an inert gas conveyor (4), characterized in that, It also includes a nozzle (5), an outer guide frame (6), an inner guide frame (61), a motor (7), a rotating frame (8), a connecting block (81), and an arc-shaped material support plate (9). An inert gas conveyor (4) is connected to the nozzle (5) located at the bottom of the inner side of the housing (2). Nozzles are evenly spaced on the nozzle (5). The gas sprayed from the nozzles is used to air-cool the neodymium iron boron. A motor (7) is installed at the center of the top of the base (1). The output shaft of the motor (7) is connected to... A rotating frame (8) is connected. Connecting blocks (81) are evenly spaced on the outer circumferential wall of the rotating frame (8). An arc-shaped material support plate (9) is movably arranged between two adjacent connecting blocks (81). The arc-shaped material support plate (9) is hinged to a connecting block (81). An outer guide frame (6) and an inner guide frame (61) of different diameters are provided on the base (1). The nozzles on the outer guide frame (6), the inner guide frame (61) and the nozzle on the spray pipe (5) are all located below the arc-shaped material support plate (9).

2. The inert gas air-cooling device for NdFeB sintering according to claim 1, characterized in that, Arc-shaped notches are provided on the outer guide frame (6) and the inner guide frame (61) respectively.

3. The inert gas air-cooling device for NdFeB sintering according to claim 2, characterized in that, The arc-shaped material support plate (9) is provided with rollers (10) that roll in cooperation with the top surfaces of the outer guide frame (6) and the inner guide frame (61).

4. The inert gas air-cooling device for NdFeB sintering according to claim 3, characterized in that, A push rod (11) is evenly spaced between two adjacent connecting blocks (81). The push rod (11) moves through the rotating frame (8) and is connected to a wedge block (12) at one end that extends into the inner side of the rotating frame (8). A first elastic element (13) is provided between the wedge block (12) and the inner wall of the rotating frame (8). Contact rods (121) are evenly spaced on the base (1). The contact rods (121) can be pressed and engaged with the wedge block (12).

5. The inert gas air-cooling device for NdFeB sintering according to claim 4, characterized in that, The outer wall of the feeding rod (11) is provided with protrusions in a staggered manner.

6. The inert gas air-cooling device for NdFeB sintering according to claim 5, characterized in that, An inclined plate (14) is rotatably provided at the opening on the side wall of the base (1). The inclined plate (14) is located below the arc-shaped notch of the outer guide frame (6) and the inner guide frame (61). A second elastic element (15) is provided between the bottom of the inclined plate (14) and the base (1).

7. The inert gas air-cooling device for NdFeB sintering according to claim 6, characterized in that, A baffle (62) is provided between the outer guide frame (6) and the inner guide frame (61), with the baffle (62) located on both sides of the arc-shaped notch as the center.

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