Magnetic material forming device and method

Abstract

The invention discloses a magnetic material forming device, and relates to the technical field of magnetic material forming processing, a driving assembly is used for starting before material pressing, so that a material distributing assembly is driven to intermittently move up and down within the range of a pressing mold, when a material distributing column moves downwards, the material can be slightly vibrated, and the material can be uniformly pressed. When the material distribution column moves upwards, the materials in the central area can flow towards the edge to be filled, the materials can be uniformly distributed before being pressed by repeating the process, and the material distribution efficiency is improved. Finally, the material distributing column and the pressing die are combined into a whole to fully press the materials, pressing force is evenly distributed, and therefore the forming quality of the magnetic materials is high.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic material processing, and more specifically to a magnetic material forming device. Background Art

[0002] With the rapid development of modern industrial technology, magnetic materials are widely used in various fields of life and industry; magnetic materials are materials that can respond to magnetic fields in some way; according to the strength of the magnetism exhibited by the material in the external magnetic field, it can be divided into diamagnetic materials, paramagnetic materials, ferromagnetic materials, antiferromagnetic materials and ferrimagnetic materials; most materials are diamagnetic or paramagnetic, and they react weakly to external magnetic fields; ferromagnetic materials and ferrimagnetic materials are strongly magnetic materials, and the magnetic materials usually referred to refer to strongly magnetic materials. Special molding equipment is required during the production of magnetic materials.

[0003] At present, there are many magnetic material molding devices on the market, such as die-casting machines, injection molding machines, extruders, etc. In the molding process, the raw materials need to be loaded into the molding cavity. Since the raw materials are in powder form, there are large gaps between the powders. After loading, the raw materials are compacted, and then compacted again. This process is repeated many times to achieve the required specifications.

[0004] As a result, the pressing cycle of magnetic materials is long and the yield rate is low. Due to the uneven distribution of materials during pressing, the stress distribution during pressing is also uneven, resulting in low strength of the finished product as a whole or in part, or even internal porosity, which greatly reduces the effect of the magnetic material in the later use.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a magnetic material forming device. Summary of the invention

[0006] The object of the present invention is to provide a magnetic material forming device to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0008] A magnetic material forming device includes a workbench, a pressing assembly and a hydraulic drive component, wherein a protective cover is fixedly installed on the upper end of the workbench, a pressing groove is opened on the upper end of the workbench, and the pressing groove is located on the inner side of the protective cover, and the pressing assembly is located above the pressing groove. The pressing assembly includes a top plate, a transfer plate, a pressing mold and a plurality of conduction rods, and the top plate, the transfer plate and the pressing mold are distributed in sequence from top to bottom, the transfer plate is fixedly connected to the upper end of the pressing mold, and a plurality of conduction rods are evenly fixedly connected between the top plate and the transfer plate, the pressing mold matches the pressing groove, the hydraulic drive component is fixedly installed on the upper end of the protective cover, the output end of the hydraulic drive component is fixedly connected to the top plate, a plurality of guide rails are fixedly installed on the inner end of the protective cover, and the top plate and the plurality of guide rails are slidably connected.

[0009] As a further improvement of the present invention, a material distribution component is installed between the top plate and the transfer plate, and the material distribution component includes a synchronization ring, a plurality of evenly distributed material distribution columns are fixedly connected to the synchronization ring, a detection cap is fixedly connected to the upper end of the material distribution column, and the transfer plate and the pressing mold are jointly provided with moving holes matching the material distribution columns, and a plurality of detection grooves matching the detection caps are provided at the lower end of the top plate. The synchronization ring can drive the plurality of material distribution columns to move up and down as a whole. When the material distribution columns move downward, they will slightly vibrate the materials in the pressing grooves, especially at the edges, to eliminate any larger pores that may exist inside. When the material distribution columns move upward, they will rely on the fluidity of the magnetic material, generally the magnetic powder itself, to distribute them evenly, and then eliminate some smaller pores that may exist. After repeated several times, the fluidity and distribution uniformity of the magnetic material can be significantly improved, and the yield rate can be improved in the subsequent pressing and molding process, and defects are less likely to occur.

[0010] As a further improvement of the present invention, a driving assembly is installed on the inner side of the synchronization ring, and the driving assembly is used to drive the material distribution assembly to move up and down.

[0011] As a further improvement of the present invention, the driving assembly includes a rotating shaft, a rotating plate, a plurality of extrusion rods and a stepper motor. The stepper motor is fixedly installed on the inner side of the pressing mold. A rotating hole is opened at the upper end of the pressing mold, and the rotating shaft is rotatably installed on the inner side of the rotating hole. The output end of the stepper motor is fixedly connected to the rotating shaft. The rotating plate is fixedly connected to the upper end of the rotating shaft. A plurality of the extrusion rods are evenly fixedly connected to the outer side wall of the rotating plate, and the extrusion rods extend to the lower side of the synchronous ring. When the stepper motor starts to drive the rotating shaft to rotate, the extrusion rods on the outer side of the rotating plate will also rotate synchronously along the synchronous ring, thereby applying different pressures to the synchronous ring, forcing the synchronous ring to move up and down.

[0012] As a further improvement of the present invention, an annular surface groove is opened on the inner wall of the synchronization ring, and the extrusion rod is located at the lower side of the material distribution column. The annular surface groove is wavy in shape. When the wavy annular surface groove cooperates with the extrusion rod, it can not only squeeze the synchronization ring to move up and down intermittently, but also minimize wear.

[0013] As a further improvement of the present invention, an air pump is fixedly installed on the outer end of the protective cover, a heating cavity is provided in the pressing mold, a hose is connected between the pressing mold and the air pump, a heating element is installed in the heating cavity, and air can be introduced into the heating cavity through the air pump. Relying on the heating effect of the heating element, the molding quality of the magnetic material can be promoted.

[0014] As a further improvement of the present invention, a plurality of evenly distributed ventilation grooves are provided at the lower end of the distribution column, and the length of the lower side of the ventilation groove from the lower end of the distribution column is less than the depth of the depression of the annular surface groove, and the overall length of the ventilation groove is greater than the depth of the depression of the annular surface groove. When the distribution column moves downward, the ventilation groove begins to span the inner and outer sides of the pressing mold. At this time, part of the hot air can be blown into the pressing groove through the lower side of the ventilation groove. The hot air can not only preheat the magnetic material and maintain temperature uniformity, but also improve the fluidity of the magnetic material powder and further eliminate possible pores.

[0015] As a further improvement of the present invention, a pressure sensor is installed in the detection tank, and the pressure sensor signal is connected to an external display device. The pressure sensor is used to monitor the pressure between the top plate and the material distribution assembly, which can ensure that the pressure can be fully transmitted to the material through the material distribution column. At the same time, after the final pressing and molding is completed, it can also monitor whether the pressing strength of different areas is consistent.

[0016] As a further improvement of the present invention, the top plate, transfer plate, conduction rod, detection cap, rotating plate and extrusion rod are all made of high-strength heat-insulating materials, and the pressing mold and distribution column are all made of high-strength heat-conductive materials. The high-strength materials can ensure the long-term operation of the device and reduce wear.

[0017] A molding method of a magnetic material molding device comprises the following steps:

[0018] S1. Weigh an appropriate amount of magnetic materials and other materials and put them into the pressing tank;

[0019] S2, start the driving assembly to drive the whole material distribution assembly to move up and down intermittently, and the material distribution column continuously vibrates the material in the pressing groove, especially at the edge, during the synchronous up and down movement, so as to make the material evenly distributed in the pressing groove and eliminate the pores;

[0020] S3, then start the hydraulic drive component to push the pressing assembly downward as a whole to press and shape the material in the pressing groove.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) This solution uses a driving component to start before the material is pressed, thereby driving the distribution component to move up and down intermittently within the range of the pressing die. When the distribution column moves downward, the material can be slightly vibrated to eliminate the larger pores that may exist in the material in the pressing groove, and promote the flow of the material itself to fill the uneven area. When the distribution column moves upward, the material in the center area will also flow to the edge to fill. Repeating the above process can achieve uniform distribution of the material before pressing. Finally, the distribution column and the pressing die are combined into a whole to fully press the material, and the pressing force is evenly distributed, so that the molding quality of the magnetic material is higher.

[0023] (2) This solution utilizes the up and down movement of the material distribution column to make the ventilation slot open intermittently, so that part of the hot air can enter the pressing slot to preheat the material. The flow distribution of the magnetic material makes the temperature distribution more uniform. At the same time, the hot air can also promote the further flow of the magnetic material and eliminate possible smaller pores, which can not only improve the uniformity of the distribution of the magnetic material, but also ensure that the material is pressed and formed at a relatively uniformly distributed temperature.

[0024] (3) This solution utilizes the characteristic that the material distribution component can move up and down, and integrates a pressure sensor to monitor the pressure of the material distribution component and the pressing component. This can not only ensure that the pressure of the magnetic material remains consistent during the pressing process, but also detect multiple areas after the pressing is completed. If the pressure is too high or too low, it indicates that the pressing effect is not good, so additional pressure or other operations are performed to ensure the final molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the pressing assembly of the present invention;

[0027] Figure 3 The explosion of the pressing component part of the present invention Figure 1 ;

[0028] Figure 4 The explosion of the pressing component part of the present invention Figure 2 ;

[0029] Figure 5 It is a partial cross-sectional view of the material distribution assembly of the present invention;

[0030] Figure 6 A cross-sectional view of a compression mold of the present invention;

[0031] Figure 7 It is a front view of the pressing assembly of the present invention before and after the stepper motor is started.

[0032] Description of the numbers in the figure:

[0033] 1. Workbench; 2. Protective cover; 3. Hydraulic drive; 4. Pressing assembly; 41. Top plate; 42. Transfer plate; 43. Pressing mold; 44. Conducting rod; 45. Moving hole; 46. Detection slot; 5. Air pump; 6. Pressing slot; 7. Guide rail; 8. Material distribution assembly; 81. Synchronous ring; 82. Detection cap; 83. Material distribution column; 84. Ventilation slot; 85. Annular surface slot; 9. Driving assembly; 91. Rotating shaft; 92. Rotating plate; 93; Extrusion rod; 94. Stepper motor; 10. Heating element. DETAILED DESCRIPTION

[0034] An implementation of the present application is described in detail below with reference to the accompanying drawings.

[0035] The first implementation method:

[0036] See also Figure 1-7 A magnetic material forming device includes a workbench 1, a pressing assembly 4 and a hydraulic drive component 3. A protective cover 2 is fixedly installed on the upper end of the workbench 1. A pressing groove 6 is opened on the upper end of the workbench 1, and the pressing groove 6 is located on the inner side of the protective cover 2. The pressing assembly 4 is located above the pressing groove 6. The pressing assembly 4 includes a top plate 41, a transfer plate 42, a pressing mold 43 and a plurality of conduction rods 44. The top plate 41, the transfer plate 42 and the pressing mold 43 are distributed in sequence from top to bottom. The transfer plate 42 is fixedly connected to the upper end of the pressing mold 43. A plurality of conduction rods 44 are evenly fixedly connected between the top plate 41 and the transfer plate 42. The pressing mold 43 matches the pressing groove 6. The hydraulic drive component 3 is fixedly installed on the upper end of the protective cover 2. The output end of the hydraulic drive component 3 is fixedly connected to the top plate 41. A plurality of guide rails 7 are fixedly installed on the inner end of the protective cover 2. The top plate 41 and the plurality of guide rails 7 are slidably connected.

[0037] A material distribution component 8 is installed between the top plate 41 and the transfer plate 42. The material distribution component 8 includes a synchronization ring 81, on which are fixedly connected a plurality of evenly distributed material distribution columns 83, and on the upper ends of the material distribution columns 83, a detection cap 82 is fixedly connected. The transfer plate 42 and the pressing mold 43 are jointly provided with moving holes 45 matching the material distribution columns 83, and on the lower end of the top plate 41 are provided a plurality of detection grooves 46 matching the detection caps 82. The synchronization ring 81 can drive the plurality of material distribution columns 83 to move up and down as a whole. When the material distribution columns 83 move downward, they will slightly vibrate the material in the pressing groove 6, especially at the edge, to eliminate any larger pores that may exist inside. When the material distribution columns 83 move upward, they rely on the fluidity of the magnetic material, generally the magnetic powder itself, to distribute it evenly, and then eliminate some smaller pores that may exist. After repeated several times, the fluidity and distribution uniformity of the magnetic material can be significantly improved, and the yield rate can be improved in the subsequent pressing and molding process, and defects are less likely to occur.

[0038] A driving assembly 9 is installed inside the synchronization ring 81, and the driving assembly 9 is used to drive the material distribution assembly 8 to move up and down.

[0039] The driving assembly 9 includes a rotating shaft 91, a rotating plate 92, a plurality of extrusion rods 93 and a stepper motor 94. The stepper motor 94 is fixedly installed on the inner side of the pressing mold 43. A rotating hole is opened at the upper end of the pressing mold 43, and the rotating shaft 91 is rotatably installed on the inner side of the rotating hole. The output end of the stepper motor 94 is fixedly connected to the rotating shaft 91. The rotating plate 92 is fixedly connected to the upper end of the rotating shaft 91. A plurality of extrusion rods 93 are evenly and fixedly connected to the outer side wall of the rotating plate 92, and the extrusion rods 93 extend to the lower side of the synchronous ring 81. When the stepper motor 94 starts to drive the rotating shaft 91 to rotate, the extrusion rods 93 on the outer side of the rotating plate 92 will also rotate synchronously along the synchronous ring 81, thereby applying different pressures to the synchronous ring 81, forcing the synchronous ring 81 to move up and down.

[0040] An annular surface groove 85 is provided on the inner wall of the synchronization ring 81, and the extrusion rod 93 is located at the lower side of the dividing column 83. The annular surface groove 85 is wavy in shape. When the wavy annular surface groove 85 cooperates with the extrusion rod 93, it can not only squeeze the synchronization ring 81 to move up and down intermittently, but also minimize wear.

[0041] An air pump 5 is fixedly installed on the outer end of the protective cover 2, a heating cavity is provided in the pressing mold 43, a hose is connected between the pressing mold 43 and the air pump 5, a heating element 10 is installed in the heating cavity, and air can be introduced into the heating cavity through the air pump 5. Relying on the heating effect of the heating element 10, the molding quality of the magnetic material can be promoted.

[0042] It is worth noting that the stepper motor 94 is installed inside the motor box to reduce external high temperature interference as much as possible. The motor box can be made of insulating material. If conditions permit, the motor box can be connected to external cooling equipment to provide temperature reduction protection for the stepper motor 94.

[0043] The heating element 10 may be any component capable of achieving heating, such as an electric heating wire or an electric heating plate, and the specific structure and heating principle will not be described in detail herein.

[0044] A number of evenly distributed ventilation grooves 84 are provided at the lower end of the dividing column 83. The length of the lower side of the ventilation groove 84 from the lower end of the dividing column 83 is less than the depth of the depression of the annular surface groove 85. The overall length of the ventilation groove 84 is greater than the depth of the depression of the annular surface groove 85. When the dividing column 83 moves downward, the ventilation groove 84 begins to span the inner and outer sides of the pressing mold 43. At this time, part of the hot air can be blown into the pressing groove 6 through the lower side of the ventilation groove 84. The hot air can not only preheat the magnetic material and maintain the temperature uniformity, but also improve the fluidity of the magnetic material powder and further eliminate possible pores.

[0045] A pressure sensor is installed in the detection groove 46, and the pressure sensor signal is connected to an external display device. The pressure sensor is used to monitor the pressure between the top plate 41 and the material distribution component 8. It can ensure that the pressure can be fully transmitted to the material through the material distribution column 83. At the same time, after the final pressing and molding is completed, it can also monitor whether the pressing strength of different areas is consistent.

[0046] The external display device may be an ordinary display screen or an intelligent touch screen with an integrated controller, both of which are prior arts and will not be described in detail here.

[0047] The top plate 41, transfer plate 42, conduction rod 44, detection cap 82, rotating plate 92 and extrusion rod 93 are all made of high-strength heat-insulating materials, and the pressing mold 43 and the distribution column 83 are all made of high-strength heat-conductive materials. The high-strength materials can ensure the long-term operation of the device and reduce wear.

[0048] See also Figure 7When the magnetic material is pressed and formed, a proper amount of magnetic material and other materials are weighed and put into the pressing groove 6, and then the stepper motor 94 is started to drive the rotating shaft 91 and the rotating plate 92 to rotate, and the extrusion rod 93 is synchronously driven to perform a circular motion along the lower side of the synchronous ring 81. Due to the wavy annular surface groove 85 opened on the lower side of the synchronous ring 81, the extrusion rod 93 will give different pressures to the synchronous ring 81 during the movement. When it moves to the protrusion, it will squeeze the synchronous ring 81 upward to move it upward as a whole. At this time, the detection cap 82 enters the detection groove 46, and the lower end of the material distribution column 83 is kept flush with the lower end of the pressing die 43. When the pressing rod 93 continues to move and reaches the recessed position, the synchronous ring 81 as a whole can move downward under the action of gravity. At this time, the detection cap 82 opens the detection groove 46, and the material distribution column 83 extends downward to enter the material in the pressing groove 6 to perform slight vibration to eliminate possible larger pores. As the extrusion rod 93 continues to rotate, the material distribution column 83 will also move up and down intermittently. When the material distribution column 83 moves upward and resets, the magnetic material will also fill some smaller pores by relying on its own fluidity. In the process of repeated vibration and flow, the material in the pressing groove 6 will gradually be evenly distributed, and in the later pressing The stress distribution during molding will also be more uniform, which can significantly improve the pressing molding quality of the magnetic material. It is worth noting that when the stepper motor 94 is started, the material distribution column 83 will indirectly accompany the up and down movement. During this process, the hydraulic drive component 3 can be started or not. When starting the hydraulic drive component 3, pay attention to the descending speed to be slow enough. Relying on the slow downward movement of the pressing mold 43, pressure can be gradually applied to the material at the center, thereby dispersing it to the edge. In this way, the material in the pressing groove 6 will show a flow effect from the edge to the inside and from the inside to the edge, which can further improve the uniform distribution of the material. Finally, the hydraulic drive component 3 is started to press the material in the pressing groove 6 with appropriate pressure. When the rotating shaft 91 stops rotating, it is best to align the extrusion rod 93 with the protrusion of the annular surface groove 85. At this time, the detection cap 82 just enters the detection groove 46 and abuts against the top plate 41, which can better transmit the pressure. However, in theory, even if it is not aligned, the top plate 41 will gradually press against the dividing column 83 during the downward movement, but it is possible to cause certain pressure damage to the extrusion rod 93. Therefore, the technician can calculate the final stopping time according to the speed of the stepper motor 94 and the starting time.

[0049] During the whole process, the air pump 5 and the heating element 10 are started synchronously, and the appropriate temperature is selected according to the type of material to be formed, and then the material is heated by relying on the heat in the heating cavity. In the process of the distribution column 83 moving up and down, part of the hot air can enter the pressing groove 6 through the ventilation groove 84, which can not only preheat the material, but also promote the uniformity of the flow distribution of the material. Compared with the direct pressing molding in the prior art, the present invention can improve the distribution uniformity of the material through pre-vibration before pressing and promoting flow, which can significantly improve the pressing molding quality of the magnetic material and have a higher yield rate.

[0050] Secondly, the pressure sensor in the detection slot 46 can monitor the pressure during pressing. If the pressures of multiple pressure sensors are basically the same, it can be judged that the distribution component 8 is well combined with the pressing mold 43, and the pressing of the magnetic material is continuous and integrated. If there is a pressure abnormality, it can be judged that the magnetic material is unevenly distributed or a certain distribution column 83 is not sufficiently combined with the pressing mold 43, which is convenient for technicians to make adjustments. After the pressing is completed, the stepper motor 94 can be started to rotate a certain angle so that the extrusion rod 93 deviates from the protrusion of the annular surface groove 85. At this time, if the pressure sensor shows a decrease in pressure, it can be judged that the corresponding distribution column 83 may have a downward movement or trend, which means that the material is pressed unevenly and the pressing in other areas is not sufficient, and then adjustments to the pressure or other remedial measures are made.

[0051] In addition, the present invention is particularly suitable for the molding of annular magnets, cylindrical magnets, pancake magnets, and square magnets. The distribution of the distribution column 83 is more uniform. Magnets of other shapes such as bar magnets require structural and positional optimization of the distribution component 8 and the driving component 9. In theory, it is suitable for the molding of magnets of any shape.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A magnetic material forming device, characterized in that: include: A workbench (1), a protective cover (2) being fixedly mounted on the upper end of the workbench (1), a pressing groove (6) being provided on the upper end of the workbench (1), and the pressing groove (6) being located on the inner side of the protective cover (2); A pressing assembly (4) is located above the pressing groove (6), the pressing assembly (4) comprising a top plate (41), a transfer plate (42), a pressing die (43) and a plurality of conduction rods (44), wherein the top plate (41), the transfer plate (42) and the pressing die (43) are sequentially arranged from top to bottom, the transfer plate (42) is fixedly connected to the upper end of the pressing die (43), a plurality of conduction rods (44) are evenly fixedly connected between the top plate (41) and the transfer plate (42), and the pressing die (43) matches the pressing groove (6); A hydraulic drive component (3) is fixedly mounted on the upper end of the protective cover (2); an output end of the hydraulic drive component (3) is fixedly connected to a top plate (41); a plurality of guide rails (7) are fixedly mounted on the inner end of the protective cover (2); and the top plate (41) is slidably connected to the plurality of guide rails (7).

2. A magnetic material forming device according to claim 1, characterized in that: A material distribution component (8) is installed between the top plate (41) and the transfer plate (42), and the material distribution component (8) includes a synchronization ring (81), and a plurality of evenly distributed material distribution columns (83) are fixedly connected to the synchronization ring (81), and a detection cap (82) is fixedly connected to the upper end of the material distribution column (83), and the transfer plate (42) and the pressing mold (43) are jointly provided with a moving hole (45) matching the material distribution column (83), and the lower end of the top plate (41) is provided with a plurality of detection grooves (46) matching the detection cap (82).

3. A magnetic material forming device according to claim 2, characterized in that: A driving assembly (9) is installed inside the synchronization ring (81), and the driving assembly (9) is used to drive the material distribution assembly (8) to move up and down.

4. A magnetic material forming device according to claim 3, characterized in that: The driving assembly (9) comprises a rotating shaft (91), a rotating plate (92), a plurality of extrusion rods (93) and a stepping motor (94); the stepping motor (94) is fixedly mounted on the inner side of the pressing die (43); a rotating hole is provided at the upper end of the pressing die (43); the rotating shaft (91) is rotatably mounted on the inner side of the rotating hole; an output end of the stepping motor (94) is fixedly connected to the rotating shaft (91); the rotating plate (92) is fixedly connected to the upper end of the rotating shaft (91); a plurality of extrusion rods (93) are evenly fixedly connected to the outer side wall of the rotating plate (92); and the extrusion rods (93) extend to the lower side of the synchronization ring (81).

5. A magnetic material forming device according to claim 4, characterized in that: An annular surface groove (85) is provided on the inner side wall of the synchronization ring (81), and the extrusion rod (93) is located at the lower side of the material distribution column (83), and the annular surface groove (85) is wavy in shape.

6. A magnetic material forming device according to claim 5, characterized in that: An air pump (5) is fixedly mounted on the outer end of the protective cover (2), a heating cavity is arranged in the pressing mold (43), a hose is connected between the pressing mold (43) and the air pump (5), and a heating element (10) is installed in the heating cavity.

7. A magnetic material forming device according to claim 6, characterized in that: A plurality of evenly distributed ventilation grooves (84) are provided at the lower end of the material distribution column (83); the length of the lower side of the ventilation groove (84) from the lower end of the material distribution column (83) is less than the depth of the depression of the annular surface groove (85); and the overall length of the ventilation groove (84) is greater than the depth of the depression of the annular surface groove (85).

8. A magnetic material forming device according to claim 5, characterized in that: A pressure sensor is installed in the detection tank (46), and the pressure sensor signal is connected to an external display device.

9. A magnetic material forming device according to claim 6, characterized in that: The top plate (41), the transfer plate (42), the conduction rod (44), the detection cap (82), the rotating plate (92) and the extrusion rod (93) are all made of high-strength heat-insulating materials, and the pressing mold (43) and the material distribution column (83) are all made of high-strength heat-conducting materials.

10. A molding method of a magnetic material molding device according to any one of claims 3 to 9, characterized in that: The following steps are involved: S1, weighing an appropriate amount of magnetic material and other materials and putting them into the pressing tank (6); S2, starting the driving assembly (9) to drive the material distribution assembly (8) to intermittently move up and down as a whole, and the material distribution column (83) continuously vibrates the material in the pressing groove (6), especially at the edge, during the synchronous up and down movement, so as to make the material evenly distributed in the pressing groove (6) and eliminate pores; S3, then start the hydraulic drive component (3) to push the pressing assembly (4) to move downward as a whole to press and shape the material in the pressing groove (6).

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