Low temperature resistant ferrite manufacturing device and method

Abstract

The application relates to the field of ferrite, in particular to a low-temperature-resistant ferrite manufacturing device and method; the device comprises a U-shaped plate with a U-shaped groove formed inside, two extension pipes connected in the U-shaped groove, two limiting plates fixed at the inner ends of the two extension pipes respectively, a seat plate I and a seat plate II fixed at the inner ends of the two extension pipes respectively, a double-rod frame sliding through the seat plate II, a pressing plate fixed at the inner end of the double-rod frame, the pressing plate sliding in the corresponding extension pipe, a spring I arranged between the pressing plate and the seat plate II, the outer end of the double-rod frame pressing the seat plate II, the inner end surface of the pressing plate being in the same plane with the inner end of the corresponding extension pipe, a power telescopic rod fixed on the seat plate I, a pressing plate fixed at the inner end of the power telescopic rod, the pressing plate sliding in the corresponding extension pipe, and a sliding pipe fixed on the pressing plate and sliding in the extension pipe.

Description

Technical Field

[0001] This invention relates to the field of ferrites, and in particular to an apparatus and method for manufacturing low-temperature resistant ferrites. Background Technology

[0002] Ferrite is a metal oxide with subferromagnetic properties. Electrically, ferrite has a much higher resistivity than elemental metals or alloy magnetic materials, and also possesses high dielectric properties. Ferrite's magnetic properties are further demonstrated by its high permeability at high frequencies. Therefore, ferrite has become a widely used non-metallic magnetic material in high-frequency, low-voltage applications.

[0003] When ferrite is manufactured, it usually goes through the processes of raw material mixing, pre-firing, crushing, powdering, molding, sintering and polishing. However, during molding, the existing molding equipment is mostly inconvenient to remove the molded block after molding, which affects the manufacturing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a low-temperature resistant ferrite manufacturing apparatus and method that facilitates the removal of the molded block, thereby improving manufacturing efficiency.

[0005] A low-temperature ferrite manufacturing apparatus includes a U-shaped plate with an internally formed U-shaped groove, two extension tubes fitted and connected within the U-shaped groove, two limiting plates respectively fixed to the inner ends of the two extension tubes, a seat plate I and a seat plate II respectively fixed to the inner ends of the two extension tubes, a double-rod frame sliding through and on the seat plate II, a top clamping plate fixed to the inner end of the double-rod frame, the top clamping plate sliding within the corresponding extension tube, a spring I provided between the top clamping plate and the seat plate II, such that the outer end of the double-rod frame presses against the seat plate II and the inner end face of the top clamping plate is in the same plane as the inner end of the corresponding extension tube, a power telescopic rod fixed to the seat plate I, a pressure plate fixed to the inner end of the power telescopic rod, the pressure plate sliding within the corresponding extension tube, and when the power telescopic rod is retracted to its shortest length, the inner end face of the pressure plate is in the same plane as the inner end of the corresponding extension tube, and a sliding tube fixed to the pressure plate, the sliding tube fitting and sliding within the extension tube.

[0006] The upper end of the U-shaped plate has two inclined plates I that extend symmetrically. The upper ends of the two inclined plates I are fixed with a stabilizing frame. The upper ends of the two limiting plates have two inclined plates II that extend symmetrically. The side ends of the two inclined plates II are in contact with the inner walls of the two inclined plates I.

[0007] The stabilizing frame has a double screw shaft rotating in the middle, and two inclined plates II are threadedly connected to the two ends of the double screw shaft respectively.

[0008] It also includes a support frame and outriggers. The support frame is fitted on the outside of the stabilizing frame, and the twin screw shaft is rotatably connected to the support frame. Outriggers are fixed at both ends of the support frame.

[0009] A reciprocating groove shaft rotates between the two support legs, and a crossbar slides back and forth on the reciprocating groove shaft. Both ends of the U-shaped plate are fixed with long perforated plates, and the two ends of the crossbar slide in the two long perforated plates respectively.

[0010] A limiting rod slides on the seat plate I, and a central shaft is fixed on the limiting rod. The central shaft passes through the seat plate I, the pressure plate, and the top plate.

[0011] A support shaft is fixed on the seat plate II. A spring II is provided between the seat plate I and the limiting rod frame, so that the limiting rod frame is pressed against the support shaft, and the end of the central axis away from the seat plate I is in the same plane as the outer end of the extension tube on the opposite side.

[0012] A transmission sleeve rotates on the central shaft, and a rotating plate is fixed on the transmission sleeve. The rotating plate has an arc-shaped hole, and the top plate slides in the arc-shaped hole.

[0013] A rack is fixed on the top plate, and a gear shaft rotates on the seat plate II. The gear shaft meshes with the rack for transmission, and a transmission wheel rotates on the gear shaft. The transmission wheel meshes with the transmission sleeve for transmission. A torsion spring is provided between the gear shaft and the transmission wheel.

[0014] The method for manufacturing a low-temperature resistant ferrite using the aforementioned apparatus includes the following steps:

[0015] S1. Weigh the raw materials according to the proportions and mix them evenly;

[0016] S2. The uniformly mixed material is pre-sintered, then crushed and powdered;

[0017] S3. Add the raw material powder into the U-shaped groove and fill the space between the two limiting plates;

[0018] S4. Start the extension rod to extend, so that the pressing plate presses the raw material powder against the pressing plate and enters the extension tube where the pressing plate is located, so that the raw material powder is gradually formed by the extrusion pressure.

[0019] S5. After the pressing plate pushes the molding material out of the extension tube, the rotating plate, which is rotated by the spring force of the torsion spring, pushes the molding material away from the pressing plate and the top plate through the arc hole.

[0020] S6. Retract the power telescopic rod and repeat S3-S5 to form a continuous manufacturing process for the molding material.

[0021] S7. The molding raw material is sintered, polished and cleaned to obtain low-temperature resistant ferrite. Attached Figure Description

[0022] Figure 1 and Figure 2 This is a schematic diagram of a low-temperature ferrite manufacturing device.

[0023] Figure 3This is a structural schematic diagram of the support frame;

[0024] Figure 4 This is a schematic diagram of the U-shaped plate structure;

[0025] Figure 5 This is a schematic diagram of the extension tube structure;

[0026] Figure 6 This is a partial structural diagram of a low-temperature ferrite manufacturing device;

[0027] Figure 7 yes Figure 6 Schematic diagram of local structure Figure 1 ;

[0028] Figure 8 yes Figure 6 Schematic diagram of local structure Figure 2 ;

[0029] Figure 9 This is a structural schematic diagram of seat plate II;

[0030] Figure 10 This is a structural diagram of the top clamping plate.

[0031] In the picture:

[0032] Support frame 101; Leg bracket 102; Twin screw shaft 103; Reciprocating groove shaft 104; Crossbar bracket 105;

[0033] Stabilizing frame 201; Inclined plate I 202; U-shaped plate 203; Long perforated plate 204;

[0034] Inclined plate II 301; Limiting plate 302; Extension tube 303;

[0035] Seat plate I 401; Pressure plate 402; Slide tube 403; Central shaft 404; Limiting rod 405; Spring II 406;

[0036] Seat plate II 501; Support shaft 502; Gear shaft 503; Transmission wheel 504;

[0037] Top plate 601; Double rod frame 602; Spring I 603; Rack and pinion 604;

[0038] Transmission sleeve 701; rotating plate 702; arc-shaped hole 703. Detailed Implementation

[0039] like Figure 1-10 As shown:

[0040] A low-temperature resistant ferrite manufacturing apparatus includes a U-shaped plate 203, extension tubes 303, limiting plates 302, seat plate I 401, clamping plate 402, sliding tube 403, seat plate II 501, top clamping plate 601, double rod frame 602, and spring I 603. The U-shaped plate 203 has a U-shaped groove formed inside, and the two extension tubes 303 are fitted and connected within the U-shaped groove. The two limiting plates 302 are respectively fixed to the inner ends of the two extension tubes 303. Seat plate I 401 and seat plate II 501 are respectively fixed to the inner ends of the two extension tubes 303. The double rod frame 602 slides through and on seat plate II 501. The top clamping plate 601 is fixed to the inner end of the double rod frame 602. 601 slides within the extension tube 303 on the corresponding side. Spring I 603 is positioned between the top plate 601 and the seat plate II 501, causing the outer end of the double rod 602 to press against the seat plate II 501, and the inner end face of the top plate 601 to be in the same plane as the inner end of the corresponding extension tube 303. The power telescopic rod is fixed on the seat plate I 401, and the pressure plate 402 is fixed on the inner end of the power telescopic rod. The pressure plate 402 slides within the extension tube 303 on the corresponding side, and when the power telescopic rod is retracted to its shortest length, the inner end face of the pressure plate 402 is in the same plane as the inner end of the corresponding extension tube 303. The slide tube 403 is fixed on the pressure plate 402 and slides within the extension tube 303.

[0041] During manufacturing, the power telescopic rod is first retracted to its shortest state. At this time, the clamping plate 402, the end of the corresponding extension tube 303, and the limiting plate 302 are on the same plane. The top clamping plate 601 on the other side is limited by the spring I 603, the seat plate II 501, and the double rod frame 602, so that the top clamping plate 601, the end of the corresponding extension tube 303, and the limiting plate 302 are on the same plane. This makes both ends of the U-shaped groove in the U-shaped plate 203 vertical plane blocked. At this time, the raw material powder is added into the U-shaped groove, so that the raw material powder fills the space between the two limiting plates 302, ensuring the uniform axial distribution of the raw material powder between the clamping plate 402 and the top clamping plate 601.

[0042] Then, the power telescopic rod is extended, pushing the pressure plate 402 towards the top pressure plate 601 to compress the raw material powder. The top pressure plate 601, under pressure, continues to compress the spring I 603, thus forcing the raw material powder into the extension tube 303 where the top pressure plate 601 is located. As the elastic force of the spring I 603 gradually increases, the raw material powder is compressed into shape until the top pressure plate 601 and the shaped raw material slide out of the extension tube 303 in sequence. At this point, the shaped raw material is moved away from between the pressure plate 402 and the top pressure plate 601, thus obtaining the shaped raw material. As the power telescopic rod retracts, the pressing plate 402 returns to its original position, and the top plate 601 gradually slides back to its original position under the influence of the spring force of spring I 603. During this process, the slide tube 403 slides with the pressing plate 402, thereby ensuring that the remaining raw material powder in the U-shaped groove does not enter the extension tube 303. After both the pressing plate 402 and the top plate 601 return to their original positions, the remaining raw material powder will automatically fall to fill the gap, preparing for the next compression. Then, by repeating the above steps, the efficient processing operation of raw material compression can be carried out continuously.

[0043] Among them, the power telescopic rod is a power-driven device with telescopic function, such as a hydraulic telescopic cylinder or an electric telescopic rod.

[0044] like Figure 1-10 As shown:

[0045] Two inclined plates I 202 extend symmetrically to the upper end of the U-shaped plate 203. The stabilizing frame 201 is fixed to the upper end of the two inclined plates I 202. Two inclined plates II 301 extend symmetrically to the upper end of the two limiting plates 302. The side ends of the two inclined plates II 301 are in contact with the inner wall of the two inclined plates I 202.

[0046] By setting up two inclined plates I202 and two inclined plates II301, the space above the U-shaped groove is increased and extended, which can hold a large amount of raw material powder and support the multiple extrusion molding operations of the device without the need to add raw material powder after each extrusion.

[0047] like Figure 1-10 As shown:

[0048] The twin-screw shaft 103 rotates in the middle of the stabilizing frame 201, and the two inclined plates II 301 are threadedly connected to the two ends of the twin-screw shaft 103 respectively.

[0049] By rotating the twin screw shaft 103, the two inclined plates II 301 are simultaneously driven by the screw thread, causing the two inclined plates II 301 to move closer or further away at the same time. This changes the distance between the two limiting plates 302, thereby adjusting the amount of raw material powder between the pressing plate 402 and the top pressing plate 601, thus adjusting the thickness of the extruded block while ensuring the extrusion effect.

[0050] like Figure 1-10 As shown:

[0051] It also includes a support frame 101 and a leg bracket 102. The support frame 101 is sleeved on the outside of the stabilizing frame 201. The double screw shaft 103 is rotatably connected to the support frame 101. Both ends of the support frame 101 are fixed with the leg bracket 102.

[0052] The support frame 101 and the support leg frame 102 form a support for the twin screw shaft 103, which in turn forms a support for the entire device. At the same time, the cavity containing the raw materials is suspended on the support frame 101 through the twin screw shaft 103, which allows the cavity containing the raw materials to swing around the twin screw shaft 103 as the axis, thereby facilitating the sliding of the raw material powder into the U-shaped groove and ensuring sufficient raw material powder between the pressing plate 402 and the top pressing plate 601.

[0053] like Figure 1-10 As shown:

[0054] The reciprocating groove shaft 104 rotates between the two support legs 102, and the crossbar frame 105 slides back and forth on the reciprocating groove shaft 104. The two elongated perforated plates 204 are respectively fixed at both ends of the U-shaped plate 203, and the two ends of the crossbar frame 105 slide within the two elongated perforated plates 204 respectively.

[0055] By starting the first motor installed on one of the support legs 102, the reciprocating groove shaft 104 is driven to rotate. The reciprocating groove shaft 104 moves back and forth through the reciprocating groove transmission crossbar 105 on it. The reciprocating crossbar 105 will slide within the two elongated perforated plates 204, thereby causing the U-shaped groove to swing back and forth around the double screw shaft 103. This allows the raw material powder in the cavity containing the raw material to slide quickly into the U-shaped groove, quickly ensuring sufficient raw material powder between the pressing plate 402 and the top pressing plate 601, thereby improving manufacturing efficiency.

[0056] like Figure 1-10 As shown:

[0057] The limiting rod 405 slides on the seat plate I 401, and the central shaft 404 is fixed on the limiting rod 405. The central shaft 404 passes through the seat plate I 401, the pressure plate 402 and the top plate 601.

[0058] By setting the central shaft 404, the center of the forming block squeezed by the pressing plate 402 and the top plate 601 has a hole that matches the central shaft 404. Combined with the circular inner wall of the extension tube 303, the forming block is an annular shape with a central hole.

[0059] like Figure 1-10 As shown:

[0060] The support shaft 502 is fixed on the seat plate II 501, and the spring II 406 is disposed between the seat plate I 401 and the limiting rod 405, so that the limiting rod 405 presses against the support shaft 502, and the end of the central shaft 404 away from the seat plate I 401 is in the same plane as the outer end of the extension tube 303 on the opposite side.

[0061] While ensuring that the central shaft 404 passes through the seat plate I 401, the pressure plate 402 and the top plate 601 to create an annular forming block with a central hole, the setting of the spring II 406 causes the limiting rod 405 to press against the support shaft 502, thereby ensuring that the end of the central shaft 404 away from the seat plate I 401 is on the same plane as the outer end of the extension tube 303 on the opposite side. That is, when the pressure plate 402 pushes the forming block away from the extension tube 303, the forming block is simultaneously separated from the central shaft 404, which makes it easy to move the forming block away between the pressure plate 402 and the top plate 601 and then remove the forming block.

[0062] Moreover, thanks to the spring II 406, when the positions of the two extension tubes 303 are adjusted by the twin screw shaft 103, the central shaft 404 can still pass through the seat plate I 401, the pressure plate 402 and the top plate 601, and the end of the central shaft 404 away from the seat plate I 401 is on the same plane as the outer end of the extension tube 303 on the opposite side, and is not affected by the distance between the two limiting plates 302.

[0063] like Figure 1-10 As shown:

[0064] The transmission sleeve 701 rotates on the central shaft 404, the rotating plate 702 is fixed on the transmission sleeve 701, the arc-shaped hole 703 is provided on the rotating plate 702, and the clamping plate 601 slides in the arc-shaped hole 703.

[0065] When the clamping plate 402 pushes the forming block away from the extension tube 303 and the forming block is simultaneously separated from the central shaft 404, the transmission sleeve 701 is rotated, causing the transmission sleeve 701 to drive the rotating plate 702 to rotate. The rotating plate 702 will drive the arc-shaped hole 703 to rotate. When the rotating plate 702 at the edge of the arc-shaped hole 703 contacts the forming block, it will push the forming block from the side, thereby causing the forming block to be pushed away between the clamping plate 402 and the top clamping plate 601. Then the forming block is removed. After the forming block is separated from the clamping plate 402 and the top clamping plate 601, the top clamping plate 601 is quickly slid into the arc-shaped hole 703 under the influence of the spring I 603, thereby pressing the clamping plate 402 until it returns to its original position.

[0066] The arc-shaped holes 703 are set over a large area on the rotating plate 702, providing time for the top plate 601 to quickly return to its original position and tighten the pressing plate 402, thus preventing the top plate 601 from being pressed tightly against the rotating plate 702 and unable to return to its original position, which would affect subsequent compression.

[0067] like Figure 1-10As shown:

[0068] The rack 604 is fixed on the top plate 601, the gear shaft 503 rotates on the seat plate II 501, the gear shaft 503 meshes with the rack 604 for transmission, the transmission wheel 504 rotates on the gear shaft 503, the transmission wheel 504 meshes with the transmission sleeve 701 for transmission, and a torsion spring is provided between the gear shaft 503 and the transmission wheel 504.

[0069] When the clamping plate 601 slides outward under pressure, it simultaneously drives the rack 604 to move. After the rack 604 contacts the gear shaft 503, it transmits power to the gear shaft 503, causing it to rotate. Simultaneously, the rotation of the gear shaft 503 drives the transmission wheel 504 to rotate via the torsion spring, which in turn drives the transmission sleeve 701 to rotate, thus causing the rotating plate 702 to rotate. After the edge of the arc-shaped hole 703 on the rotating plate 702 presses against the double-bar frame 602, the rotating plate 702 stops rotating, while the gear shaft 503 continues to rotate under the transmission of the rack 604, thereby compressing the torsion spring. This causes the force of the rotating plate 702 pressing against the double rod frame 602 to gradually increase until the forming block disengages from the extension tube 303 and the central shaft 404. Under the influence of the torsion spring, the rotating plate 702 will push the forming block away from the pressure plate 402 and the top plate 601. At the same time, the top plate 601, under the influence of the spring I 603, quickly slides into the arc-shaped hole 703 and presses against the pressure plate 402. After the rotating plate 702 rotates once, it presses against the top plate 601 again until the top plate 601 returns to its original position. Then, the rack 604 disengages from the gear shaft 503, and the gear shaft 503 automatically rotates back to release the force of the torsion spring, preparing for the next movement of the forming block.

[0070] like Figure 1-10 As shown:

[0071] The method for manufacturing a low-temperature resistant ferrite using the aforementioned apparatus includes the following steps:

[0072] S1. Weigh the raw materials according to the proportions and mix them evenly;

[0073] S2. The uniformly mixed material is pre-sintered, then crushed and powdered;

[0074] S3. Add the raw material powder into the U-shaped groove and fill the space between the two limiting plates 302;

[0075] S4. Start the extension rod to extend, so that the pressing plate 402 presses the raw material powder against the pressing plate 601 and enters the extension tube 303 where the pressing plate 601 is located, so that the raw material powder is gradually formed by the extrusion pressure.

[0076] S5. After the pressing plate 402 pushes the molding material out of the extension tube 303, the rotating plate 702, which is rotated by the torsion spring, pushes the molding material away from the pressing plate 402 and the pressing plate 601 through the arc hole 703.

[0077] S6. Retract the power telescopic rod and repeat S3-S5 to form a continuous manufacturing process for the molding material.

[0078] S7. The molding raw material is sintered, polished and cleaned to obtain low-temperature resistant ferrite.

Claims

1. A low-temperature resistant ferrite manufacturing apparatus, characterized in that: The system includes a U-shaped plate (203) with an internally formed U-shaped groove, two extension tubes (303) fitted and connected within the U-shaped groove, two limiting plates (302) fixed to the inner ends of the two extension tubes (303), seat plate I (401) and seat plate II (501) fixed to the inner ends of the two extension tubes (303), a double rod frame (602) sliding through and on seat plate II (501), and a top clamping plate (601) fixed to the inner end of the double rod frame (602). The top clamping plate (601) slides within the extension tubes (303) on the corresponding side. A spring I (603) is provided between the top clamping plate (601) and seat plate II (501). The outer end of the double rod (602) is pressed against the seat plate II (501) and the inner end face of the pressing plate (601) is in the same plane as the inner end of the corresponding extension tube (303), and the power telescopic rod is fixed on the seat plate I (401), and the pressure plate (402) is fixed on the inner end of the power telescopic rod. The pressure plate (402) slides in the extension tube (303) on the corresponding side. When the power telescopic rod is retracted to its shortest length, the inner end face of the pressure plate (402) is in the same plane as the inner end of the corresponding extension tube (303), and the slide tube (403) is fixed on the pressure plate (402). The slide tube (403) slides in close contact with the extension tube (303). The seat plate I (401) slides on a limiting rod (405), and a central shaft (404) is fixed on the limiting rod (405). The central shaft (404) passes through the seat plate I (401), the pressure plate (402), and the top plate (601). A support shaft (502) is fixed on the seat plate II (501). A spring II (406) is provided between the seat plate I (401) and the limiting rod (405) so that the limiting rod (405) presses against the support shaft (502), and the end of the central shaft (404) away from the seat plate I (401) is in the same plane as the outer end of the extension tube (303) on the opposite side. A transmission sleeve (701) rotates on the central shaft (404), and a rotating plate (702) is fixed on the transmission sleeve (701). An arc-shaped hole (703) is provided on the rotating plate (702), and a top plate (601) slides in the arc-shaped hole (703). A rack (604) is fixed on the top plate (601), and a gear shaft (503) rotates on the seat plate II (501). The gear shaft (503) meshes with the rack (604) for transmission. A transmission wheel (504) rotates on the gear shaft (503), and the transmission wheel (504) meshes with the transmission sleeve (701) for transmission. A torsion spring is provided between the gear shaft (503) and the transmission wheel (504).

2. The low-temperature resistant ferrite manufacturing apparatus according to claim 1, characterized in that: The upper end of the U-shaped plate (203) has two inclined plates I (202) extending symmetrically. The upper ends of the two inclined plates I (202) are fixed with a stabilizing frame (201). The upper ends of the two limiting plates (302) have two inclined plates II (301) extending symmetrically. The side ends of the two inclined plates II (301) are in contact with the inner walls of the two inclined plates I (202).

3. The low-temperature resistant ferrite manufacturing apparatus according to claim 2, characterized in that: The middle of the stabilizing frame (201) has a double screw shaft (103) that rotates, and two inclined plates II (301) are threadedly connected to the two ends of the double screw shaft (103).

4. The low-temperature resistant ferrite manufacturing apparatus according to claim 3, characterized in that: It also includes a support frame (101) and a leg bracket (102). The support frame (101) is sleeved on the outside of the stabilizing frame (201). The double screw shaft (103) is rotatably connected to the support frame (101). Both ends of the support frame (101) are fixed with leg brackets (102).

5. The low-temperature ferrite manufacturing apparatus according to claim 4, characterized in that: A reciprocating groove shaft (104) rotates between the two support legs (102), and a crossbar frame (105) slides back and forth on the reciprocating groove shaft (104). Both ends of the U-shaped plate (203) are fixed with long hole plates (204), and both ends of the crossbar frame (105) slide in the two long hole plates (204) respectively.

6. A method for manufacturing ferrite using any one of the low-temperature resistant ferrite manufacturing apparatuses according to claims 1-5, characterized in that: Includes the following steps: S1. Weigh the raw materials according to the proportions and mix them evenly; S2. The uniformly mixed material is pre-sintered, then crushed and powdered; S3. Add the raw material powder into the U-shaped groove and fill the space between the two limiting plates (302); S4. Start the extension rod to extend, so that the pressing plate (402) presses the raw material powder against the pressing plate (601) and enters the extension tube (303) where the pressing plate (601) is located, so that the raw material powder is subjected to extrusion pressure and gradually formed. S5. After the pressing plate (402) pushes the molding material out of the extension tube (303), the rotating plate (702) rotated by the torsion spring force and pushes the molding material away from the pressing plate (402) and the top plate (601) through the arc hole (703). S6. Retract the power telescopic rod and repeat S3-S5 to form a continuous manufacturing process for the molding material. S7. The molding raw material is sintered, polished and cleaned to obtain low-temperature resistant ferrite.

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