Magnet pressing equipment and preparation process

Abstract

The invention relates to the field of magnet pressing equipment, in particular to magnet pressing equipment and a preparation process, the magnet pressing equipment comprises a frame body, a lower mold and an upper mold, the lower mold is provided with a cavity and is arranged on the frame body, and the upper mold is located above the lower mold and is connected to the frame body in a vertical sliding mode; the frame body is provided with a driving part for driving the upper mold to move downwards, the upper mold is provided with a pressing block used for being inserted into a cavity, the two sides, distributed in the width direction of the cavity, of the lower mold are each provided with a material guide groove, the material guide grooves are communicated with the cavity, and the material guide grooves are obliquely formed in the direction close to the cavity from top to bottom. The method has the effect of improving the uniformity of the density of the pressed magnet.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of magnet pressing equipment, in particular to a magnet pressing equipment and a preparation process. BACKGROUND

[0002] In the prior art, when a magnet is manufactured, magnetic powder is placed in a magnet forming and pressing mold, the magnet is formed through pressing of a pressing block, and the magnet is demolded from the mold to complete the manufacture of the magnet.

[0003] When a magnet with large ends and a small middle is pressed, the powder is sprayed into the cavity of the lower mold by the powder spraying device, and then because the total amount of powder sprayed per unit area at each position by the powder spraying device is consistent and because the middle of the magnet is small, the middle volume of the cavity of the lower mold is small, which causes the density of the powder in the middle of the cavity to be large, and after pressing and forming, the density of the middle of the formed magnet is greater than that of the two ends, thereby affecting the uniformity of the density of the magnet. SUMMARY

[0004] In order to improve the uniformity of the density of the magnet after pressing, the present application provides a magnet pressing equipment and a preparation process.

[0005] The magnet pressing equipment and the preparation process provided by the present application adopt the following technical solutions: A magnet pressing equipment, comprising a frame body, a lower mold and an upper mold, the lower mold has a cavity and is arranged on the frame body, the upper mold is located above the lower mold and is connected to the frame body in vertical sliding mode, the frame body is provided with a driving member for driving the upper mold to move downward, the upper mold is provided with a pressing block for inserting into the cavity, guide grooves are arranged on both sides of the lower mold in the width direction of the cavity, the guide grooves are communicated with the cavity, and the guide grooves are arranged in an inclined manner from top to bottom along the direction close to the cavity.

[0006] By adopting the above technical solutions, the guide grooves are arranged on both sides of the cavity, when the pressing block is inserted into the cavity, the excess powder in the middle of the cavity will overflow the cavity through the guide grooves, so that the density of the powder at each position in the cavity is more uniform, thereby improving the uniformity of the density of the magnet after pressing.

[0007] Optionally, the frame body is provided with a first turntable, the lower mold is arranged on the first turntable, and the first turntable is provided with a uniform powder feeding assembly for feeding powder into the cavity; the uniform powder feeding assembly comprises a storage frame and a vibrating member, the storage frame is arranged on the frame body, a plurality of discharge holes are uniformly arranged on the bottom of the storage frame, and the vibrating member is used for vibrating the storage frame.

[0008] By adopting the technical scheme, the powder is uniformly fed into the cavity by the uniform feeding assembly, so that the uniformity of feeding is improved, and the uniformity of the density of the magnet after compression molding is improved; the storage frame is arranged, the storage frame is moved above the cavity during feeding, and then the storage frame is vibrated by the vibration piece, so that the powder in the storage frame is uniformly fed into the cavity.

[0009] Optionally, the frame body is hinged with a swing arm, the storage frame is arranged at the free end of the swing arm, the storage frame is provided with a closing plate for closing the discharge hole, the closing plate is slidingly connected to the storage frame, the discharge hole can be opened by sliding the closing plate, and the storage frame is provided with a driving assembly.

[0010] By adopting the technical scheme, the frame body is provided with a swing arm, under normal circumstances, the driving rod assembly drives the closing plate to close the discharge hole, when feeding is needed, the storage frame is moved above the cavity where feeding is needed by the swing arm, and then the swing arm is pressed down to move the storage frame above the lower mold, at this time, the driving assembly can drive the closing plate to slide to open the discharge hole, and then uniform feeding is performed by the storage frame.

[0011] Optionally, the driving assembly comprises a driving rod and a first spring, the driving rod is slidingly connected to the storage frame in the thickness direction of the storage frame, the upper end of the driving rod, and one side of the closing plate is provided with a second guide surface matched with a first guide surface, when the driving rod slides, the driving rod forces the closing plate to slide through the first guide surface and the second guide surface, so that the through hole on the closing plate corresponds to the discharge hole to open the discharge hole.

[0012] By adopting the technical scheme, when the swing arm is pressed down, the driving rod abuts against the upper surface of the first turntable, when the swing arm continuously moves downward, the driving rod is forced to slide, so that the closing plate opens the discharge hole, and then feeding is facilitated by the storage frame.

[0013] Optionally, the storage frame is slidingly connected to the swing arm in the length direction of the swing arm, the vibration piece is arranged on the storage frame to drive the storage frame to vibrate, and the end of the driving rod away from the storage frame is rotatably connected with a steel ball.

[0014] By adopting the technical scheme, the steel ball is arranged on the driving rod, so as to reduce the friction between the driving rod and the upper surface of the first turntable, and then the storage frame is facilitated to vibrate by the vibration piece.

[0015] Optionally, the swing arm is provided with a sliding plate along the length direction, the storage frame is arranged on the sliding plate, the swing arm is provided with a scraping assembly, the scraping assembly comprises a scraping plate and a second spring, the scraping plate is arranged on the lower surface of the sliding plate, and the second spring can force the sliding plate to slide away from the free end of the swing arm.

[0016] By adopting the above technical scheme, the swing arm is provided with the scraping assembly, when the blanking is completed, the second sliding plate forces the sliding plate to slide, so that the scraping plate scrapes off the excess powder on the upper part of the cavity, thereby facilitating the control of the density of the pressed magnet.

[0017] Optionally, the lower mold is provided with a guide groove on one side, the guide groove has an inclined third guide surface and a horizontal fourth guide surface, when the swing arm is pressed down, the third guide surface guides the driving rod, so that the sliding plate slides and forces the driving rod to move to the fourth guide surface; when the driving rod abuts against the fourth guide surface, the storage frame is located above the cavity.

[0018] By adopting the above technical scheme, when the swing arm is pressed down, the third guide surface guides the driving rod, so that the sliding plate can slide to drive the driving rod to slide to the position of the fourth guide surface, so that the storage frame moves to the upper part of the corresponding cavity, thereby facilitating the vibration of the storage frame to discharge the powder into the cavity.

[0019] Optionally, the lower mold is provided with a first blanking groove at the third guide surface of the guide groove, and the first rotating disc is provided with a second blanking groove, and the first blanking groove and the second blanking groove are communicated.

[0020] By adopting the above technical scheme, during the blanking process, part of the powder is prone to falling into the guide groove, thereby affecting the movement of the driving rod in the guide groove, therefore, the first blanking groove and the second blanking groove are arranged, thereby facilitating the cleaning of the powder in the guide groove.

[0021] Optionally, the lower mold is provided with a push plate located in the guide groove, the push plate is slidably connected to the guide groove along the length direction of the guide groove, and the driving rod is provided with a suction cup on the side close to the push plate at the lower end, when the driving rod is attached to the push plate, the suction cup is attached to the push plate.

[0022] By adopting the above technical scheme, when the swing arm moves upward, the driving rod can drive the push plate to slide through the suction cup, thereby pushing the powder in the guide groove to the first blanking groove, so as to facilitate the cleaning of the powder in the guide groove.

[0023] A magnet preparation process comprises the following steps, S1: powder is blanked into the cavity of the lower mold, and then the powder in the cavity is pressed by the upper mold; S2: the pressed magnet in the cavity is ejected; S3: the magnet is put into the sintering device for sintering; S4: put into the sorting equipment for automatic sorting.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: Both sides of the cavity are provided with material guide grooves, when the pressing block is inserted into the cavity, the excess powder in the middle of the cavity will overflow the mold groove through the material guide groove, so that the density of the powder at each position in the cavity is more uniform, thereby improving the uniformity of the density of the pressed magnet; Because part of the powder is easy to fall into the guide groove during the discharging process, affecting the movement of the driving rod in the guide groove, therefore, the first and second discharging grooves are arranged, when the swing arm moves up, the driving rod can drive the push plate to slide through the suction cup, thereby pushing the powder in the guide groove to the first discharging groove, so as to clean the powder in the guide groove. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of example 1; Figure 2 is a structural schematic diagram of the lower mold in example 1; Figure 3 is a structural schematic diagram of the material guide groove in example 1; Figure 4 is a structural schematic diagram of the magnet in example 1; Figure 5 is a structural schematic diagram of example 2; Figure 6 is a structural schematic diagram of the uniform discharging assembly in example 2; Figure 7 is a structural schematic diagram of the storage frame in example 2; Figure 8 is a structural schematic diagram of the closing plate in example 2; Figure 9 is a structural schematic diagram of the guide groove in example 2.

[0026] Explanation of reference signs: 1, first rotary disc; 11, second blanking groove; 2, second rotary disc; 3, third rotary disc; 31, jacking piece; 4, frame body; 41, main shaft; 42, moving seat; 43, hydraulic cylinder; 44, swing arm; 441, first mounting groove; 442, first sliding groove; 45, driving motor; 46, sliding plate; 461, second mounting groove; 5, lower mold; 51, cavity; 52, material guide groove; 53, guide groove; 531, third guide surface; 532, fourth guide surface; 54, first blanking groove; 55, push plate; 6, upper mold; 61, pressing block; 7, uniform blanking assembly; 71, storage frame; 711, discharge hole; 712, boss; 713, third spring; 714, second sliding groove; 72, vibrating piece; 73, closing plate; 731, through hole; 74, driving assembly; 741, driving rod; 742, first spring; 743, first guide surface; 744, second guide surface; 745, steel ball; 746, suction cup; 8, troweling assembly; 81, troweling plate; 82, second spring;. DETAILED DESCRIPTION

[0027] The following will be described in detail below with reference to the accompanying drawings. Figures 1-9 The present application is further described in detail. EMBODIMENT

[0028] The embodiment of the present application discloses a magnet pressing equipment. Referring to Figure 1 , comprising a frame body 4, the frame body 4 is sequentially provided with a first rotary disc 1, a second rotary disc 2 and a third rotary disc 3, the first rotary disc 1, the second rotary disc 2 and the third rotary disc 3 are all rotationally connected to the frame body 4, the second rotary disc 2 is located above the first rotary disc 1, the third rotary disc 3 is located below the first rotary disc 1, and the first rotary disc 1, the second rotary disc 2 and the third rotary disc 3 are coaxially fixedly connected with each other. The frame body 4 is fixedly provided with a main shaft 41, the main shaft 41 is fixedly connected with the second rotary disc 2, and the first rotary disc 1, the second rotary disc 2 and the third rotary disc 3 can be simultaneously driven to rotate through the main shaft 41.

[0029] Referring to Figure 1 and Figure 2 , further comprising a lower mold 5, a plurality of mounting grooves are formed in the upper surface of the first rotary disc 1 around an axis, the lower mold 5 is provided with a plurality of mounting grooves and is mounted in the mounting grooves, respectively, the upper surface of the lower mold 5 is flush with the upper surface of the first rotary disc 1, and a cavity 51 is formed in the middle of the lower mold 5.

[0030] Referring to Figure 1 and Figure 2The third rotating disc 3 is fixedly provided with a plurality of jacking members 31 corresponding to the lower molds 5, the jacking members 31 are hydraulic jacking devices, which are prior art and will not be described in detail in the embodiment. The driving end of the jacking member 31 is provided with a jacking block, which is normally slidably clamped in the cavity 51, and the jacking member 31 can drive the jacking block to continue to jacking upward to push the magnet pressed in the cavity 51 out of the cavity 51.

[0031] With reference to Figure 1 and Figure 2 , the upper mold 6 is provided with a plurality of upper molds 6 and is arranged on the second rotating disc 2, the plurality of upper molds 6 correspond to the plurality of lower molds 5, the upper mold 6 is slidably connected to the second rotating disc 2 in the vertical direction, and the upper mold 6 moves up and down through a hydraulic member, which is prior art and will not be described in detail in the embodiment. The lower surface of the upper mold 6 is fixedly provided with a pressing block 61, which is slidably clamped in the cavity 51 by the downward movement of the upper mold 6, so as to press the powder in the cavity 51.

[0032] With reference to Figure 2 , Figure 3 and Figure 4 , the lower mold 5 is provided with a material guide groove 52 on both sides of the width direction of the cavity 51, the material guide groove 52 is communicated with the cavity 51, and the material guide groove 52 is inclinedly arranged from top to bottom along the direction close to the cavity 51.

[0033] The embodiment also discloses a magnet preparation process, which comprises the following steps: S1: powder is discharged into the cavity 51 of the lower mold 5, and then the powder in the cavity 51 is pressed by the upper mold 6; S2: the magnet pressed in the cavity 51 is pushed out by the jacking member 31; S3: the magnet is put into a sintering device for sintering; S4: put into a sorting equipment for automatic sorting.

[0034] The implementation principle of the embodiment 1 is that the material guide grooves 52 are arranged on both sides of the cavity 51, when the pressing block 61 is inserted into the cavity 51, the excess powder in the middle of the cavity 51 will overflow the cavity through the material guide grooves 52, so that the density of the powder at each position in the cavity 51 is relatively uniform, thereby improving the uniformity of the density of the magnet after pressing. Embodiment

[0035] The difference between the embodiment 2 and the embodiment 1 is that Figure 5 and Figure 6The side of the frame body 4 is slidably connected with a moving seat 42 in the direction of approaching the first rotary table 1, and the moving seat 42 is driven to slide by a hydraulic cylinder 43. The moving seat 42 is hingedly connected with a swing arm 44, and the swing arm 44 is driven to rotate by a driving motor 45. The free end of the swing arm 44 is provided with the uniform blanking assembly 7. When blanking, the moving seat 42 moves, the uniform blanking assembly 7 is moved to above the cavity 51, and the uniform blanking assembly 7 is driven to move downward by the driving motor 45 to approach the cavity 51, and then the uniform blanking assembly 7 is used for blanking.

[0036] With reference to Figure 5 and Figure 6 , the upper surface of the swing arm 44 at the free end is provided with a first mounting groove 441 in the vertical direction, the side walls of the first mounting groove 441 distributed along the width direction of the swing arm 44 are provided with first sliding grooves 442, the length direction of the first sliding grooves 442 is parallel to the length direction of the swing arm 44, the swing arm 44 is provided with a sliding plate 46 located at the first mounting groove 441, and the two ends of the sliding plate 46 are slidably connected to the first sliding grooves 442.

[0037] With reference to Figure 6 and Figure 7 , the uniform blanking assembly 7 comprises a storage frame 71 and a vibrating piece 72, the middle part of the sliding plate 46 is provided with a second mounting groove 461, the storage frame 71 is located in the second mounting groove 461, the two sides of the storage frame 71 are fixedly connected with bosses 712, the bosses 712 are fixedly installed on the upper surface of the sliding plate 46 through third springs 713, and the vibrating piece 72 is a vibrating motor, and the vibrating motor is fixedly installed on the upper surface of the boss 712. The bottom of the storage frame 71 is uniformly provided with a plurality of discharge holes 711, and the storage frame 71 is vibrated by the vibrating piece 72, so that the storage frame 71 discharges.

[0038] With reference to Figure 7 and Figure 8 , the bottom of the storage frame 71 is provided with a second sliding groove 714, and the storage frame 71 is provided with a closing plate 73 slidably connected to the second sliding groove 714. A plurality of through holes 731 corresponding to the discharge holes 711 are formed in the closing plate 73, and the discharge holes 711 are opened by sliding the closing plate 73, so as to facilitate blanking. The storage frame 71 is provided with a driving assembly 74, and when the swing arm 44 is pressed to move the storage frame 71 above the cavity 51, the driving assembly 74 drives the closing plate 73 to slide.

[0039] With reference to Figure 7 and Figure 8The driving assembly 74 comprises a driving rod 741 and a first spring 742. The driving rod 741 is slidably connected to the storage frame 71 in the vertical direction of the storage frame 71. The lower end of the driving rod 741 is rotatably connected with a steel ball 745. The upper end of the driving rod 741 is provided with a first guide surface 743. One side of the closing plate 73 is provided with a second guide surface 744 matched with the first guide surface 743. When the lower end of the driving rod 741 abuts against the lower mold 5 and the swing arm 44 continuously moves downward, the driving rod 741 is forced to slide upward. The driving rod 741 forces the closing plate 73 to slide through the first guide surface 743 and the second guide surface 744, so that the through hole 731 on the closing plate 73 corresponds to the discharging hole 711 to open the discharging hole 711.

[0040] With reference to Figure 6 and Figure 7 , the swing arm 44 is provided with a leveling assembly 8. The leveling assembly 8 comprises a leveling plate 81 and a second spring 82. The leveling plate 81 is fixedly installed on the lower surface of the sliding plate 46. The second spring 82 is located in the first sliding groove 442. One end of the first spring 742 is fixedly connected to the groove wall of the first sliding groove 442, and the other end is fixedly connected to the sliding plate 46. The first spring 742 can force the sliding plate 46 to slide in the direction away from the free end of the swing arm 44, thereby driving the leveling plate 81 to slide.

[0041] With reference to Figure 6 and Figure 7 , the leveling plate 81 is an elastic expansion plate, so that the lower end of the leveling plate 81 can always adhere to the upper surface of the first turntable 1 and the lower mold 5 during the upward movement of the swing arm 44. During the discharging process, the leveling plate 81 is located on the side of the lower mold 5 close to the axis of the first turntable 1. After discharging, the swing arm 44 moves upward. During the upward movement of the swing arm 44, the second spring 82 can force the sliding plate 46 to move from the side close to the axis of the first turntable 1 to the side away from the axis of the first turntable 1, thereby driving the leveling plate 81 to sweep over the upper surface of the lower mold 5 to remove the excess powder.

[0042] With reference to Figure 6 , Figure 7 and Figure 9The lower die 5 is provided with a guide groove 53 on one side of the cavity 51. The guide groove 53 has a third guide surface 531 and a fourth guide surface 532. The third guide surface 531 is located on the side of the fourth guide surface 532 away from the axis of the first turntable 1. When the swing arm 44 is pressed down, the third guide surface 531 guides the driving rod 741, so that the sliding plate 46 slides and forces the driving rod 741 to move to the fourth guide surface 532. In the process of moving the sliding plate 46, the storage frame 71 can be moved. When the driving rod 741 abuts against the fourth guide surface 532, the storage frame 71 is located above the cavity 51, so that the storage frame 71 can be conveniently discharged. At this time, the smoothing plate 81 is located on the side of the cavity 51 close to the axis of the first turntable 1.

[0043] Referring to Figure 6 , Figure 7 and Figure 9 , the lower die 5 is provided with a first discharge groove 54 at the lower part of the third guide surface 531 of the guide groove 53. The first turntable 1 is provided with a second discharge groove 11. One end of the second discharge groove 11 is communicated with the first discharge groove 54, and the other end of the second discharge groove 11 is communicated with the outer peripheral wall of the first turntable 1. The first discharge groove 54 and the second discharge groove 11 are inclinedly arranged. The lower die 5 is provided with a push plate 55 located in the guide groove 53. The push plate 55 is slidably connected to the guide groove 53 along the length direction of the guide groove 53. The powder in the guide groove 53 can be pushed to the first discharge groove 54 and the second discharge groove 11 by sliding the push plate 55.

[0044] Referring to Figure 6 , Figure 7 and Figure 9 , the push plate 55 includes two plate bodies. The two plate bodies are distributed along the length direction of the guide groove 53. The plate body away from the third guide surface 531 is slidably connected to the guide groove 53, and the plate body close to the third guide surface 531 is slidably connected to the other plate body in the vertical direction. The driving rod 741 is provided with a suction cup 746 on the side close to the push plate 55 at the lower end. When the driving rod 741 slides into the fourth guide surface 532, the suction cup 746 is attracted to the push plate 55. When the swing arm 44 moves up, the driving rod 741 can drive the push plate 55 to slide through the suction cup 746, so as to push the powder in the guide groove 53 to the first discharge groove 54.

[0045] The implementation principle of the embodiment 2 is that when discharging, the closing plate 73 opens the discharge hole 711, and then the storage frame 71 is vibrated to uniformly spread the powder into the cavity 51, so as to improve the uniformity of the powder, and then the uniformity of the density of the magnet after being pressed into shape can be improved. And since in the process of discharging, part of the powder is easy to fall into the guide groove 53, thereby affecting the movement of the driving rod 741 in the guide groove 53, therefore, the first discharging groove 54 and the second discharging groove 11 are arranged, when the swing arm 44 moves up, the driving rod 741 can drive the push plate 55 to slide through the suction cup 746, thereby pushing the powder in the guide groove 53 to the first discharging groove 54 to facilitate cleaning the powder in the guide groove 53.

[0046] The above are preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A magnet pressing device, comprising a frame (4), a lower mold (5), and an upper mold (6), wherein the lower mold (5) has a cavity (51) and is disposed on the frame (4), and the upper mold (6) is located above the lower mold (5) and is vertically slidably connected to the frame (4), the frame (4) is provided with a driving member for driving the upper mold (6) to move downward, and the upper mold (6) is provided with a pressing block (61) for inserting into the cavity (51), characterized in that: The lower mold (5) is provided with guide grooves (52) on both sides of the cavity (51) in the width direction. The guide grooves (52) are connected to the cavity (51) and are inclined from top to bottom along the direction close to the cavity (51).

2. The magnet pressing device according to claim 1, characterized in that: The frame (4) is provided with a first turntable (1), and the lower mold (5) is provided on the first turntable (1). The first turntable (1) is provided with a uniform feeding component (7) for feeding powder into the cavity (51). The uniform feeding component (7) includes a storage frame (71) and a vibrating element (72). The storage frame (71) is provided on the frame (4). The bottom of the storage frame (71) is uniformly provided with a plurality of discharge holes (711). The vibrating element (72) is used to vibrate the storage frame (71).

3. The magnet pressing device according to claim 2, characterized in that: A swing arm (44) is hinged to the frame (4). The storage frame (71) is located at the free end of the swing arm (44). The storage frame (71) is provided with a closing plate (73) for closing the discharge hole (711). The closing plate (73) is slidably connected to the storage frame (71). The discharge hole (711) can be opened by sliding the closing plate (73). The storage frame (71) is provided with a driving component (74). When the swing arm (44) presses down to move the storage frame (71) above the lower mold (5), the driving component (74) drives the closing plate (73) to slide.

4. The magnet pressing device according to claim 3, characterized in that: The drive assembly (74) includes a drive rod (741) and a first spring (742). The drive rod (741) is slidably connected to the storage frame (71) along the thickness direction of the storage frame (71). At the upper end of the drive rod (741), a second guide surface (744) is provided on one side of the closing plate (73) to cooperate with the first guide surface (743). When the drive rod (741) slides, the drive rod (741) forces the closing plate (73) to slide through the first guide surface (743) and the second guide surface (744), so that the through hole (731) and the discharge hole (711) on the closing plate (73) correspond to open the discharge hole (711).

5. A magnet pressing device according to claim 4, characterized in that: The vibrating element (72) is mounted on the storage frame (71) to drive the storage frame (71) to vibrate, and a steel ball (745) is rotatably connected to the end of the drive rod (741) away from the storage frame (71).

6. The magnet pressing equipment and manufacturing process according to claim 4, characterized in that: The swing arm (44) is provided with a sliding plate (46) along its length direction. The storage box (71) is provided on the sliding plate (46). The swing arm (44) is provided with a smoothing component (8). The smoothing component (8) includes a smoothing plate (81) and a second spring (82). The smoothing plate (81) is provided on the lower surface of the sliding plate (46). The second spring (82) can force the sliding plate (46) to slide away from the free end of the swing arm (44).

7. A magnet pressing device according to claim 6, characterized in that: The lower mold (5) has a guide groove (53) on one side. The guide groove (53) has an inclined third guide surface (531) and a horizontal fourth guide surface (532). When the swing arm (44) is pressed down, the third guide surface (531) guides the drive rod (741), causing the sliding plate (46) to slide and thus forcing the drive rod (741) to move to the fourth guide surface (532). When the drive rod (741) abuts against the fourth guide surface (532), the storage frame (71) is located above the cavity (51).

8. A magnet pressing device according to claim 7, characterized in that: The lower mold (5) has a first feeding groove (54) at the third guide surface (531) of the guide groove (53), and the first turntable (1) has a second feeding groove (11). The first feeding groove (54) and the second feeding groove (11) are connected.

9. A magnet pressing device according to claim 8, characterized in that: The lower mold (5) is provided with a push plate (55) located in the guide groove (53). The push plate (55) slides along the length direction of the guide groove (53) and is connected to the guide groove (53). The drive rod (741) is provided with a suction cup (746) on the side of its lower end close to the push plate (55). When the drive rod (741) is attached to the push plate (55), the suction cup (746) is attracted to the push plate (55).

10. A magnet manufacturing process, characterized in that: The process includes the following steps: S1: The powder is fed into the cavity (51) of the lower mold (5), and then the powder in the cavity (51) is pressed by the upper mold (6); S2: The pressed magnet in the cavity (51) is ejected; S3: The magnet is placed into the sintering device for sintering; S4: It is placed into the sorting equipment for automatic sorting.

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