A magnetic core processing and sintering equipment

Abstract

The present invention belongs to the field of magnetic core processing technology, specifically a magnetic core processing and sintering equipment, including a sintering furnace; the sintering furnace includes a furnace body; an annular bin is provided on the inner ring surface of the furnace body; the side of the annular bin close to the furnace cover is fixedly installed on the inner ring surface of the furnace body; the end of the annular bin away from the furnace cover is fixedly connected to a first heat insulation disk; an electric heating wire is installed in the heating chamber; two sets of guide rails are installed on the inner ring surface of the annular bin; a placement plate is slidably connected between the two opposite guide rails; two sets of guide assemblies are provided on the top of each placement plate; a sintering assembly is provided on the guide assembly; two sets of circulation assemblies are provided on the bottom of each placement plate; the present invention, by arranging the guide assembly and the sintering assembly, can make the gas enter the guide bin within a relatively uniform time and then be ejected from the through hole, so that the magnetic core can be uniformly sintered.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic core processing, in particular to a magnetic core processing and sintering device. Background Art

[0002] A magnetic core is a core component made of magnetic material, commonly used in transformers, inductors, and some specific electronic devices. Its main function is to provide a closed magnetic circuit so that the magnetic field can be effectively conducted in it, thereby improving the efficiency and performance of the device.

[0003] When making a magnetic core, the raw materials need to be pressed into the shape of the core through a mold, and then the formed core is placed in a sintering furnace for sintering. This is mainly to make the particles in the core combine with each other to form a dense structure and improve the overall performance of the core.

[0004] The sintering furnace is a technical equipment dedicated to magnetic core processing. It combines specific technical features and functions to ensure that the sintering process of magnetic core materials can be carried out efficiently and accurately. The design of the magnetic core sintering furnace is to achieve the sintering of magnetic core materials by controlling the temperature, atmosphere and other key parameters;

[0005] When sintering the magnetic core, the magnetic core needs to be placed in a placement tray, and then the placement tray is placed in a sintering furnace for sintering;

[0006] Since the magnetic cores are distributed at different positions in the sintering furnace, there is a time difference in the time it takes for the hot air flow in the sintering furnace to diffuse to each magnetic core position when the magnetic cores are heated and sintered, resulting in inconsistent heating time for the magnetic cores at different positions. This can easily lead to over-sintering of the magnetic cores that are heated early and insufficient sintering of the magnetic cores that are heated later. Summary of the Invention

[0007] In order to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems, the present invention proposes a magnetic core processing and sintering device. By providing a guide component and a sintering component, the gas can enter the guide chamber at a relatively uniform time and then be ejected from the through hole, thereby uniformly sintering the magnetic core. The specific structure is as follows;

[0008] A magnetic core processing and sintering device includes a sintering furnace; the sintering furnace includes a furnace body; a furnace cover is rotatably mounted on one end of the furnace body, and the other end is closed;

[0009] The inner ring surface of the furnace body is provided with an annular bin; the side of the annular bin close to the furnace cover is fixedly mounted on the inner ring surface of the furnace body;

[0010] A first heat-insulating plate is fixedly connected to the end of the annular bin away from the furnace cover; the cavity between the annular bin and the furnace body is the heating cavity; the cavity on the right side of the first heat-insulating plate is the air cavity;

[0011] An electric heating wire is installed in the heating chamber, and the electric heating wire is spirally arranged in the heating chamber;

[0012] Two sets of mirror-image guide rails are installed on the inner ring surface of the annular bin, and each set of guide rails has two guide rails, which are vertically distributed on the inner ring surface of the annular bin;

[0013] A placement plate is slidably connected between the two opposing guide rails; the two placement plates are provided with placement grooves that are evenly arranged; a placement disk is placed in each placement groove, and a magnetic core is placed in the placement disk;

[0014] The bottom of each placement plate is a mesh plate; the top of each placement plate is fixedly connected to a circular plate. When sintering the magnetic core, the placement plate is placed in the placement slot, the circular plate fits with the top of the placement plate, and the bottom of the placement plate is flush with the bottom of the placement plate;

[0015] Two sets of guide assemblies are provided on the top of each placement plate, and each set of guide assemblies is aligned with the placement plate below, and the guide assemblies are used to transmit hot air; a sintering assembly is provided on the guide assemblies, and the sintering assembly is used to sinter the magnetic core;

[0016] Two groups of circulation components are provided at the bottom of each placement plate, and each group of circulation components is aligned with the placement plate above, and the circulation components are used to control the circulation flow of hot air.

[0017] Preferably, each of the guide components includes a fixed cylinder; two fixed cylinders are provided above the two placement plates;

[0018] The side of each of the fixed cylinders close to the furnace cover extends into the heating chamber, and the other end of the fixed cylinder extends toward the position of the first heat insulation disk; the side of the four fixed cylinders close to the first heat insulation disk is fixedly connected to the second heat insulation disk, and the second heat insulation disk is fixedly connected to the inside of the annular bin, and the fixed cylinder passes through the second heat insulation disk and is fixedly connected to the second heat insulation disk;

[0019] Each of the fixed cylinders has a bottom with uniformly arranged first air grooves; each of the first air grooves is mounted with a sintering assembly;

[0020] Each of the fixed cylinders is slidably connected to a sliding cylinder, and the sliding cylinder extends from the fixed cylinder and extends between the first insulation disk and the second insulation disk; the side of the sliding cylinder close to the first insulation disk is closed;

[0021] The bottom of the four slides is provided with evenly arranged second air grooves, and in an initial state, the second air grooves are staggered with the first air grooves;

[0022] The bottoms of the two upper slides are fixedly connected with extrusion blocks, and the extrusion blocks are in the shape of a right-angled trapezoid; the tops of the two lower slides are also fixedly connected with extrusion blocks, and the two upper extrusion blocks are mirror images of the two lower extrusion blocks; the opposite sides of the extrusion blocks located above and below are fixedly connected with stop blocks;

[0023] A rectangular plate is provided between the first insulation plate and the second insulation plate, and the extrusion block is located between the rectangular plate and the second insulation plate; two guide rods are fixedly connected between the first insulation plate and the second insulation plate, and both guide rods pass through the rectangular plate and are slidably connected to the rectangular plate; two springs are fixedly connected between the rectangular plate and the first insulation plate, and both guide rods pass through the two springs; one end of the slide close to the first insulation plate is fixedly connected to a spring, and the other end of the spring is fixedly connected to the first insulation plate;

[0024] Circular grooves are formed at the four corners of the rectangular plate, and the four slide cylinders pass through the circular grooves;

[0025] The bottom of the two circular grooves located above are provided with chutes; the top of the two circular grooves located below are also provided with chutes, and the two upper chutes are mirror images of the two lower chutes; the four chutes are all designed to pass through the rectangular plate, and when the extrusion block moves close to the rectangular plate, the extrusion block will enter the chutes;

[0026] Below the two upper chute, an L-shaped groove is provided in the inner wall of the rectangular plate; an L-shaped plate is slidably connected to the L-shaped groove via a spring, and the L-shaped plate extends from the top of the rectangular plate and extends to the inner ring surface of the annular bin; a slider is fixedly connected to the side of the L-shaped plate close to the chute, and the slider extends into the corresponding chute in the initial state;

[0027] An L-shaped groove is also provided above the two lower chutes, and an L-shaped plate is also slidably connected to the L-shaped groove through a spring. The L-shaped plate extends from the bottom of the rectangular plate and extends to the inner ring surface of the annular bin. Similarly, a slider is fixedly connected to the side of the L-shaped plate close to the chute, and the slider extends into the corresponding chute in the initial state;

[0028] A retaining ring is fixedly connected to the inner ring surface of the annular bin. In an initial state, the retaining ring blocks the L-shaped plate extending to the inner ring surface of the annular bin.

[0029] Preferably, each of the sintering components includes an air bin; each of the air bins is fixedly mounted on the bottom of the fixed cylinder, and the first air groove is located in the air bin at the bottom;

[0030] The bottom of each gas bin is fixedly connected to a diversion bin, and the diversion bin is rectangular; the diversion bin is located on the top of the placement tray;

[0031] The bottom of the diversion bin is provided with evenly arranged through holes.

[0032] Preferably, the circulation component includes a reflux bin;

[0033] Two return pipes are provided under the two placement plates, and one end of the return pipe close to the furnace cover is closed; the other end of the return pipe passes through the second insulation plate, the rectangular plate and the second insulation plate and extends into the air cavity;

[0034] An air pump is installed on one side of the four return pipes extending into the air cavity, and the air pumps are all installed on the first insulation plate;

[0035] The tops of the four reflux pipes are all fixedly connected with reflux bins which are evenly arranged, and the reflux bins are all located below the placement tray; and a transverse groove is provided on the reflux pipe in the reflux bin.

[0036] Preferably, a spiral piece is fixedly connected to the heating chamber, and the electric heating wire and the spiral piece are arranged in an alternating manner.

[0037] Preferably, a heat insulation layer is fixedly connected to the surface of the spiral blades.

[0038] Preferably, the guide bin is located above the placement tray. When the placement plate is pushed into the furnace body, the guide bin located above the placement tray corresponds one-to-one with the placement tray.

[0039] Preferably, the reflux bin is located below the placement tray. When the placement plate is pushed into the furnace body, the reflux bin below the placement tray corresponds to the placement tray one-to-one.

[0040] The beneficial effects of the present invention are as follows:

[0041] 1. The magnetic core processing and sintering equipment described in the present invention controls the second gas grooves on the four sliding cylinders to coincide with the first gas grooves on the four fixed cylinders at the same time, so that the gas can enter the guide chamber at a relatively uniform time, and then be ejected from the through hole, and the magnetic cores can be uniformly sintered. Compared with the existing sintering furnace, it can avoid the time difference in the time for the hot gas in the sintering furnace to diffuse to each magnetic core position, resulting in inconsistent heating time of the magnetic cores at different positions, which can easily cause the magnetic cores heated in advance to be over-sintered and the magnetic cores heated later to be insufficiently sintered.

[0042] 2. The magnetic core processing and sintering equipment described in the present invention recovers the gas by utilizing the reflux bin, reheats the gas and introduces it into the slide cylinder, and ejects it from the through hole of the guide bin. In this process, the ejected hot gas can directly act on the magnetic core. At the same time, the gas after sintering the magnetic core will be recovered by the reflux bin, and the gas can circulate. The circulating gas can pass through the magnetic core position and then be recovered, avoiding heat loss caused by gas diffusion, thereby improving the sintering efficiency of the magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] Figure 1 is a perspective view of a sintering furnace of the present invention;

[0045] Figure 2 1. It is a diagram of the internal structure of the sintering furnace of the present invention;

[0046] Figure 3 It is a structural diagram of the sintering furnace in the present invention;

[0047] Figure 4 This invention Figure 3 A partial enlarged view of the middle part;

[0048] Figure 5 This is a structural diagram of the guide assembly, sintering assembly, circulation assembly and placement plate in the present invention;

[0049] Figure 6 It is a structural diagram of the guide assembly and the sintering assembly in the present invention;

[0050] Figure 7 is a side view of the sintering furnace of the present invention;

[0051] Figure 8 This invention Figure 7 Cross-sectional view at the middle BB;

[0052] Figure 9 This invention Figure 8 A partial enlarged view of point C in the middle;

[0053] Figure 10 This invention Figure 8 A partial enlarged view of point D in the middle;

[0054] Figure 11 This invention Figure 8 Cross-sectional view at EE.

[0055] In the figure: 1. furnace body; 11. furnace cover; 12. annular bin; 13. first insulation plate; 14. electric heating wire; 15. guide rail; 16. spiral sheet; 2. placement plate; 21. placement groove; 22. placement plate; 23. magnetic core; 24. circular plate; 3. fixing cylinder; 31. second insulation plate; 32. first air groove; 33. slide cylinder; 34. second air groove; 35. extrusion block; 36. stopper; 4. rectangular plate; 41. guide rod; 42. circular groove; 43. slide groove; 44. L-shaped groove; 45. L-shaped plate; 46. slider; 47. retaining ring; 5. air bin; 51. guide bin; 52. through hole; 6. reflux bin; 61. reflux pipe; 62. air pump; 63. transverse groove. DETAILED DESCRIPTION

[0056] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0057] Example 1: Figures 1 to 11 As shown, the magnetic core processing and sintering equipment of the present invention includes a sintering furnace; the sintering furnace includes a furnace body 1; a furnace cover 11 is rotatably mounted on one end of the furnace body 1, and the other end is closed;

[0058] The inner surface of the furnace body 1 is provided with an annular bin 12; the annular bin 12 is fixedly mounted on the inner surface of the furnace body 1 on the side close to the furnace cover 11;

[0059] The annular bin 12 is fixedly connected to a first heat-insulating plate 13 at one end thereof away from the furnace cover 11; the cavity between the annular bin 12 and the furnace body 1 is a heating cavity; the cavity to the right of the first heat-insulating plate 13 is an air cavity;

[0060] An electric heating wire 14 is installed in the heating chamber, and the electric heating wire 14 is spirally arranged in the heating chamber;

[0061] Two sets of mirror-image guide rails 15 are installed on the inner ring surface of the annular bin 12, and each set of guide rails 15 has two guide rails 15, which are vertically distributed on the inner ring surface of the annular bin 12;

[0062] A placement plate 2 is slidably connected between the two opposing guide rails 15; the two placement plates 2 are provided with placement grooves 21 arranged evenly; a placement disk 22 is placed in each placement groove 21, and a magnetic core 23 is placed in the placement disk 22;

[0063] The bottom of each placement plate 22 is a mesh plate; the top of each placement plate 22 is fixedly connected to a circular plate 24. When sintering the magnetic core 23, the placement plate 22 is placed in the placement groove 21, the circular plate 24 is in contact with the top of the placement plate 2, and the bottom of the placement plate 22 is flush with the bottom of the placement plate 2.

[0064] Two sets of guide components are provided on the top of each placement plate 2, and each set of guide components is aligned with the placement plate 22 below, and the guide components are used to transmit hot air; a sintering component is provided on the guide component, and the sintering component is used to sinter the magnetic core 23;

[0065] Two sets of circulation components are provided at the bottom of each placement plate 2, and each set of circulation components is aligned with the placement plate 22 above, and the circulation components are used to control the circulation flow of hot air;

[0066] In this embodiment, each of the guide components includes a fixed cylinder 3; two fixed cylinders 3 are provided above the two placement plates 2;

[0067] The side of each of the fixed cylinders 3 close to the furnace cover 11 extends into the heating chamber, and the other end of the fixed cylinder 3 extends toward the position of the first heat insulation disk 13; the side of the four fixed cylinders 3 close to the first heat insulation disk 13 is fixedly connected to the second heat insulation disk 31, and the second heat insulation disk 31 is fixedly connected to the inside of the annular chamber 12, and the fixed cylinder 3 passes through the second heat insulation disk 31 and is fixedly connected to the second heat insulation disk 31;

[0068] Each of the fixed cylinders 3 has a first air groove 32 arranged evenly at the bottom; each of the first air grooves 32 is mounted with a sintering assembly;

[0069] Each of the fixed cylinders 3 is slidably connected to a slide cylinder 33, and the slide cylinder 33 extends from the fixed cylinder 3 and extends between the first insulation plate 13 and the second insulation plate 31; the side of the slide cylinder 33 close to the first insulation plate 13 is closed;

[0070] The bottom of the four slides 33 is provided with evenly arranged second air grooves 34 , and in an initial state, the second air grooves 34 and the first air grooves 32 are staggered.

[0071] The bottoms of the two upper slides 33 are fixedly connected with extrusion blocks 35, and the extrusion blocks 35 are in the shape of a right-angled trapezoid; the tops of the two lower slides 33 are also fixedly connected with extrusion blocks 35, and the two upper extrusion blocks 35 are mirror images of the two lower extrusion blocks 35; the opposite sides of the upper and lower extrusion blocks 35 are fixedly connected with stoppers 36;

[0072] A rectangular plate 4 is provided between the first insulation plate 13 and the second insulation plate 31, and an extrusion block 35 is located between the rectangular plate 4 and the second insulation plate 31; two guide rods 41 are fixedly connected between the first insulation plate 13 and the second insulation plate 31, and the guide rods 41 pass through the rectangular plate 4 and are slidably connected to the rectangular plate 4; two springs are fixedly connected between the rectangular plate 4 and the first insulation plate 13, and the two guide rods 41 pass through the two springs; a spring is fixedly connected to one end of the slide 33 close to the first insulation plate 13, and the other end of the spring is fixedly connected to the first insulation plate 13;

[0073] The four corners of the rectangular plate 4 are each provided with a circular groove 42 , and the four slide cylinders 33 pass through the circular groove 42 ;

[0074] The bottom of the two upper circular grooves 42 is provided with a chute 43; the top of the two lower circular grooves 42 is also provided with a chute 43, and the two upper chute 43 is mirrored with the two lower chute 43; the four chute 43 are designed to pass through the rectangular plate 4, and when the extrusion block 35 moves close to the rectangular plate 4, the extrusion block 35 will enter the chute 43;

[0075] Below the two upper chute grooves 43, an L-shaped groove 44 is formed in the inner wall of the rectangular plate 4. An L-shaped plate 45 is slidably connected to the L-shaped groove 44 via a spring. The L-shaped plate 45 extends from the top of the rectangular plate 4 and extends to the inner surface of the annular bin 12. A slider 46 is fixedly connected to the side of the L-shaped plate 45 close to the chute 43. In the initial state, the slider 46 extends into the corresponding chute 43.

[0076] An L-shaped groove 44 is also provided above the two lower chute grooves 43, and an L-shaped plate 45 is also slidably connected to the L-shaped groove 44 through a spring. The L-shaped plate 45 extends from the bottom of the rectangular plate 4 and extends to the inner ring surface of the annular bin 12. Similarly, a slider 46 is fixedly connected to the side of the L-shaped plate 45 close to the chute 43, and the slider 46 initially extends into the corresponding chute 43.

[0077] A retaining ring 47 is fixedly connected to the inner surface of the annular bin 12. In the initial state, the retaining ring 47 blocks the L-shaped plate 45 extending to the inner surface of the annular bin 12.

[0078] In this embodiment, each of the sintering assemblies includes an air bin 5 ; each of the air bins 5 is fixedly mounted on the bottom of the fixed cylinder 3 , and the first air groove 32 is located in the air bin 5 at the bottom;

[0079] Each of the gas bins 5 is fixedly connected to a flow guide bin 51 at the bottom, and the flow guide bin 51 is rectangular; the flow guide bin 51 is located on the top of the placement tray 22;

[0080] The bottom of the diversion chamber 51 is provided with evenly arranged through holes 52;

[0081] In this embodiment, the circulation assembly includes a reflux bin 6; two reflux pipes 61 are provided under each of the two placement plates 2, and one end of the reflux pipe 61 close to the furnace cover 11 is closed; the other end of the reflux pipe 61 passes through the second insulation plate 31, the rectangular plate 4, and the second insulation plate 31 and extends into the air cavity;

[0082] An air pump 62 is installed on one side of the four return pipes 61 extending into the air cavity, and the air pumps 62 are all installed on the first insulation plate 13;

[0083] The tops of the four reflux pipes 61 are all fixedly connected with reflux bins 6 that are evenly arranged, and the reflux bins 6 are all located below the placement tray 22; a transverse groove 63 is opened on the reflux pipe 61 in the reflux bin 6;

[0084] Specifically, when sintering the magnetic core 23, the placement plate 2 is first pulled out from the guide rail 15, and then the placement tray 22 containing the magnetic core 23 is placed in the placement slot 21. The placement plate 2 is then pushed into the sintering furnace until the placement plate 2 is in contact with the second heat-insulating tray 31. After the placement plate 2 is in contact with the second heat-insulating tray 31, the furnace cover 11 is closed and the magnetic core 23 is sintered.

[0085] More specifically, when the magnetic core 23 is sintered, the electric heating wire 14 and the air pump 62 are started. After the electric heating wire 14 is started, the gas in the heating chamber will be heated. At the same time, when the air pump 62 is working, the gas in the furnace body 1 will first enter the reflux bin 6, and then enter the air chamber through the reflux pipe 61. Then, the gas entering the air chamber will enter the heating chamber. When the gas enters the heating chamber, the working electric heating wire 14 can heat the passing gas. The heated gas will enter the four fixed cylinders 3. Since a slide cylinder 33 slides inside the fixed cylinder 3, the gas will enter the slide cylinder 33. Since the side of the slide cylinder 33 close to the first insulation disk 13 is closed, the gas entering the slide cylinder 33 cannot be discharged. As the gas drawn into the air pump 62 gradually increases, the gas entering the slide cylinder 33 also gradually increases. When the air pressure in the slide cylinder 33 gradually increases, the gas will push When the stopper 36 fixed on the extrusion block 35 is in contact with the rectangular plate 4, the slide cylinder 33 no longer drives the extrusion block 35 to move in the slide groove 43, and the L-shaped plate 45 no longer retracts into the rectangular plate 4. At this time, the stopper 47 no longer blocks the L-shaped plate 45.

[0086] Furthermore, since the four slides 33 and the four L-shaped plates 45 exist independently, when the blocks 36 on the extrusion blocks 35 on the four slides 33 are all in contact with the rectangular plate 4, the four L-shaped plates 45 are no longer blocked by the retaining rings 47. Therefore, the four slides 33 will push the rectangular plate 4 to slide along the guide rod 41 toward the position of the first heat insulation disk 13 and compress the spring connecting the rectangular plate 4 and the first heat insulation disk 13. At the same time, the second air grooves 34 on the four slides 33 will gradually overlap with the first air grooves 32 on the four fixed cylinders 3 at the same time. When the first air grooves 32 overlap with the second air grooves 34, the gas in the four slides 33 will enter the air chamber 5, and then the gas will enter the guide chamber 51 and be ejected from the through hole 52. The ejected gas will act on the magnetic core 23, thereby sintering the magnetic core 23.

[0087] During this process, by controlling the second gas grooves 34 on the four slide cylinders 33 to coincide with the first gas grooves 32 on the four fixed cylinders 3 at the same time, the gas can enter the guide chamber 51 at a relatively uniform time, and then be ejected from the through hole 52 to sinter the magnetic core 23. Compared with the existing sintering furnace, this can avoid the time difference in the time for the hot gas in the sintering furnace to diffuse to each position of the magnetic core 23, resulting in inconsistent heating time for the magnetic cores 23 at different positions, which can easily cause the magnetic core 23 heated in advance to be over-sintered, and the magnetic core 23 heated later to be insufficiently sintered.

[0088] Furthermore, since the bottom of the placement plate 22 is a mesh plate, and since the reflux chamber 6 is located below the placement plate 22, when the gas ejected from the through hole 52 sinters the magnetic core 23, since the air pump 62 is in working condition, the gas after sintering the magnetic core 23 will be sucked into the reflux chamber 6, and then enter the reflux pipe 61 through the transverse groove 63, and then enter the air cavity again through the reflux pipe 61. The gas entering the air cavity will enter the heating chamber again for heating, and then the heated gas will enter the slide cylinder 33 again, thereby The hot gas can be circulated. During this process, the gas is recovered by using the reflux chamber 6, and the gas is heated again and introduced into the slide cylinder 33, and ejected from the through hole 52 of the guide chamber 51. During this process, the ejected hot gas can directly act on the magnetic core 23. At the same time, the gas after sintering the magnetic core 23 will be recovered by the reflux chamber 6, and the gas can be circulated. The circulating gas can be recycled after passing through the position of the magnetic core 23, thereby avoiding heat loss caused by gas diffusion, thereby improving the sintering efficiency of the magnetic core 23.

[0089] When the sintering of the magnetic core 23 is completed, the electric heating wire 14 and the air pump 62 are turned off, and then the placement plate 2 is slid out of the guide rail 15, and the placement disk 22 with the magnetic core 23 is removed from the placement plate 2. At the same time, since the air pump 62 stops working, the gas will not enter the slide 33. Under the thrust of the spring between the rectangular plate 4 and the first insulation disk 13, the rectangular plate 4 will be pushed to return to its initial state. At the same time, the spring connected to the slide 33 will also push the slide 33 to slide in the opposite direction and gradually return to its initial state. At the same time, the slide 33 will drive the extrusion block 35 to move. When the extrusion block 35 no longer squeezes the slider 46, the L-shaped plate 45 will return to its initial state under the push of the spring, and the retaining ring 47 will block the L-shaped plate 45 again.

[0090] Embodiment 2: The heating chamber is fixedly connected with a spiral piece 16, and the electric heating wire 14 and the spiral piece 16 are staggered. In this embodiment, the surface of the spiral piece 16 is fixedly connected with a heat insulation layer. Since the spiral piece 16 is fixedly connected to the heating chamber, when the gas in the gas cavity enters the heating chamber, the gas will flow in a spiral along the spiral piece 16. In this process, the contact time between the gas and the electric heating wire 14 can be increased, thereby improving the heating efficiency of the gas. At the same time, since the gas flows in a spiral, the gas can be evenly heated, avoiding the situation where some gas is heated unevenly.

[0091] More specifically, since the surfaces of the spiral blades 16 are all fixedly connected with a heat insulating layer, the heated gas can be insulated to prevent heat loss.

[0092] Embodiment 3: The guide bin 51 is located above the placement tray 22. When the placement plate 2 is pushed into the furnace body 1, the guide bin 51 located above the placement tray 22 corresponds one-to-one with the placement tray 22.

[0093] In this embodiment, the reflux bin 6 is located below the placement tray 22. When the placement plate 2 is pushed into the furnace body 1, the reflux bin 6 located below the placement tray 22 corresponds to the placement tray 22 one by one.

[0094] Specifically, since the placement tray 22 corresponds one-to-one with the guide chamber 51 above and the reflux chamber 6 below, when the gas is ejected from the through hole 52, it can be directly sprayed into the magnetic core 23 of the placement tray 22, thereby avoiding the deviation between the ejected gas and the magnetic core 23, thereby reducing the sintering effect of the magnetic core 23; since the reflux chamber 6 below the placement tray 22 corresponds one-to-one with the placement tray 22, the gas flowing out of the placement tray 22 can directly flow into the reflux chamber 6, thereby avoiding the gas from diffusing into the furnace body 1.

[0095] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0096] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic core processing and sintering device, comprising a sintering furnace; the sintering furnace comprises a furnace body (1); a furnace cover (11) is rotatably mounted on one end of the furnace body (1), and the other end is closed; Its characteristics are: The inner ring surface of the furnace body (1) is provided with an annular bin (12); the annular bin (12) is fixedly mounted on the inner ring surface of the furnace body (1) on a side close to the furnace cover (11); A first heat-insulating plate (13) is fixedly connected to the end of the annular bin (12) away from the furnace cover (11); the cavity between the annular bin (12) and the furnace body (1) is a heating cavity; the cavity on the right side of the first heat-insulating plate (13) is an air cavity; An electric heating wire (14) is installed in the heating chamber, and the electric heating wire (14) is spirally arranged in the heating chamber; Two sets of guide rails (15) mirroring each other are installed on the inner ring surface of the annular bin (12), and each set of guide rails (15) has two guide rails, which are vertically distributed on the inner ring surface of the annular bin (12); A placement plate (2) is slidably connected between the two opposing guide rails (15); the two placement plates (2) are provided with placement grooves (21) that are evenly arranged; a placement disk (22) is placed in each placement groove (21), and a magnetic core (23) is placed in the placement disk (22); The bottom of each placement plate (22) is a mesh plate; the top of each placement plate (22) is fixedly connected with a circular plate (24); when the magnetic core (23) is sintered, the placement plate (22) is placed in the placement groove (21), the circular plate (24) is fitted with the top of the placement plate (2), and the bottom of the placement plate (22) is flush with the bottom of the placement plate (2); Two sets of flow guide components are provided on the top of each placement plate (2), and each set of flow guide components is aligned with the placement plate (22) below, and the flow guide components are used to transmit hot air; a sintering component is provided on the flow guide component, and the sintering component is used to sinter the magnetic core (23); Two sets of circulation components are provided at the bottom of each placement plate (2), and each set of circulation components is aligned with the placement plate (22) above, and the circulation components are used to control the circulation flow of hot air; each of the guide components includes a fixed cylinder (3); two fixed cylinders (3) are provided above the two placement plates (2); Each of the sintering assemblies comprises an air bin (5); each of the air bins (5) is fixedly mounted on the bottom of the fixed cylinder (3), and the first air groove (32) is located in the air bin (5) at the bottom; The bottom of each gas bin (5) is fixedly connected to a flow guide bin (51), and the flow guide bin (51) is rectangular; the flow guide bin (51) is located on the top of the placement tray (22); The bottom of the diversion chamber (51) is provided with evenly arranged through holes (52); The circulation assembly includes a reflux bin (6); two reflux pipes (61) are provided below the two placement plates (2), and one end of the reflux pipe (61) close to the furnace cover (11) is closed; the other end of the reflux pipe (61) passes through the second heat insulation plate (31), the rectangular plate (4) and the second heat insulation plate (31) and extends into the air cavity; An air pump (62) is installed on one side of the four return pipes (61) extending into the air cavity, and the air pumps (62) are all installed on the first heat insulation plate (13); The tops of the four reflux pipes (61) are all fixedly connected with reflux bins (6) that are evenly arranged, and the reflux bins (6) are all located below the placement tray (22); a transverse groove (63) is provided on the reflux pipes (61) in the reflux bins (6).

2. The magnetic core processing and sintering equipment according to claim 1, characterized in that: The side of each of the fixed cylinders (3) close to the furnace cover (11) extends into the heating chamber, and the other end of the fixed cylinder (3) extends toward the position of the first heat insulation disk (13); the side of the four fixed cylinders (3) close to the first heat insulation disk (13) is fixedly connected to the second heat insulation disk (31), and the second heat insulation disk (31) is fixedly connected to the inside of the annular bin (12), and the fixed cylinder (3) passes through the second heat insulation disk (31) and is fixedly connected to the second heat insulation disk (31); The bottom of each fixed cylinder (3) is provided with uniformly arranged first air grooves (32); and a sintering assembly is installed on each first air groove (32); Each of the fixed cylinders (3) is slidably connected to a slide cylinder (33), and the slide cylinder (33) extends from the fixed cylinder (3) and extends between the first heat insulation disk (13) and the second heat insulation disk (31); the side of the slide cylinder (33) close to the first heat insulation disk (13) is closed; The bottoms of the four slide cylinders (33) are provided with evenly arranged second air grooves (34), and in an initial state, the second air grooves (34) and the first air grooves (32) are arranged alternately; The bottoms of the two upper slides (33) are fixedly connected with extrusion blocks (35), and the extrusion blocks (35) are right-angled trapezoids; the tops of the two lower slides (33) are also fixedly connected with extrusion blocks (35), and the two upper extrusion blocks (35) are mirror-imaged with the two lower extrusion blocks (35); opposite sides of the extrusion blocks (35) located above and below are fixedly connected with stop blocks (36); A rectangular plate (4) is provided between the first heat-insulating plate (13) and the second heat-insulating plate (31), and the extrusion block (35) is located between the rectangular plate (4) and the second heat-insulating plate (31); two guide rods (41) are fixedly connected between the first heat-insulating plate (13) and the second heat-insulating plate (31), and the guide rods (41) pass through the rectangular plate (4) and are slidably connected to the rectangular plate (4); two springs are fixedly connected between the rectangular plate (4) and the first heat-insulating plate (13), and the two guide rods (41) pass through the two springs; one end of the slide cylinder (33) close to the first heat-insulating plate (13) is fixedly connected to a spring, and the other end of the spring is fixedly connected to the first heat-insulating plate (13); Circular grooves (42) are provided at the four corners of the rectangular plate (4), and the four slide cylinders (33) pass through the circular grooves (42); The bottoms of the two circular grooves (42) located above are provided with chutes (43); the tops of the two circular grooves (42) located below are also provided with chutes (43), and the two upper chutes (43) and the two lower chutes (43) are mirror-imaged; the four chutes (43) are all designed to penetrate the rectangular plate (4), and when the extrusion block (35) moves close to the rectangular plate (4), the extrusion block (35) will enter the chutes (43); Below the two upper chute grooves (43), an L-shaped groove (44) is provided in the inner wall of the rectangular plate (4); an L-shaped plate (45) is slidably connected to the L-shaped groove (44) via a spring, and the L-shaped plate (45) extends from the top of the rectangular plate (4) and extends to the inner ring surface of the annular bin (12); a slider (46) is fixedly connected to the side of the L-shaped plate (45) close to the chute (43), and the slider (46) extends into the corresponding chute (43) in the initial state; An L-shaped groove (44) is also provided above the two lower chute grooves (43), and an L-shaped plate (45) is also slidably connected to the L-shaped groove (44) through a spring, and the L-shaped plate (45) extends from the bottom of the rectangular plate (4) and extends to the inner ring surface of the annular bin (12). Similarly, a slider (46) is fixedly connected to the side of the L-shaped plate (45) close to the chute groove (43), and the slider (46) extends into the corresponding chute groove (43) in the initial state; A retaining ring (47) is fixedly connected to the inner ring surface of the annular bin (12). In an initial state, the retaining ring (47) blocks the L-shaped plate (45) extending to the inner ring surface of the annular bin (12).

3. The magnetic core processing and sintering equipment according to claim 1, characterized in that: A spiral piece (16) is fixedly connected in the heating chamber, and the electric heating wire (14) and the spiral piece (16) are arranged in an alternating manner.

4. The magnetic core processing and sintering equipment according to claim 3, characterized in that: The surfaces of the spiral sheets (16) are all fixedly connected with a heat insulation layer.

5. The magnetic core processing and sintering equipment according to claim 1, characterized in that: The guide bin (51) is located above the placement tray (22). When the placement plate (2) is pushed into the furnace body (1), the guide bin (51) located above the placement tray (22) corresponds one-to-one to the placement tray (22).

6. The magnetic core processing and sintering equipment according to claim 1, characterized in that: The reflux bin (6) is located below the placement tray (22). When the placement plate (2) is pushed into the furnace body (1), the reflux bin (6) located below the placement tray (22) corresponds one-to-one to the placement tray (22).

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