Compaction forming equipment for inductor magnetic core machining

Abstract

The invention discloses compaction molding equipment for inductor magnetic core processing, which comprises a support frame and a cylinder II fixedly arranged on the top side wall of the support frame, the output end of the cylinder II is fixedly provided with a circling rod, the inner side wall of the support frame is fixedly provided with a molding support table, and the circling rod is in sliding fit with the top of the molding support table; according to the invention, the air cylinder I is controlled to extend, namely, the resisting lantern ring pushes particles in the forming cavity to the upper part of the forming support table, so that the forming cavity is primarily cleaned, gas is sprayed onto the inner wall of the forming cavity through the spray pipe, the interior of the forming cavity is cleaned again, and the air cylinder is controlled to continuously extend upwards; liquid is discharged into the forming cavity through the spray pipe on the inner through pipe, the interior of the forming cavity is deeply washed and cleaned, the forming cavity is cleaned from the two aspects of the conventional situation and the situation after long-term use, and the compaction forming quality of the magnetic core is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic core production and processing equipment. More specifically, the present invention relates to a compaction and forming equipment for inductor magnetic core processing. Background Art

[0002] Before magnetic core sintering, it needs to be compacted and formed to press out the required shape and size, and then sintered. Most common magnetic core forming is by hydraulic one-time forming. There is a situation where it cannot be compacted firmly in one-time forming, which easily affects the sintering quality of the magnetic core. For this reason, Chinese Patent CN214672205U proposes a nickel-zinc ferrite magnetic core compaction and forming device, which drives a lower pressing curved block to rotate through a driving motor. The lower pressing curved block rotates to squeeze the support column to move up and down reciprocally, and the squeezing support column drives a shaping pressing block to repeatedly compact the forming material;

[0003] However, in the above patent document, the inside of the compaction groove is prone to residual powder or other impurities. The residual hard particles (such as metal chips) scratch the surface of the compaction groove under high pressure. After the magnetic core is formed, it is impossible to perform immediate mild cleaning on the compaction groove and deep cleaning on it after long-term use. Cleaning treatment is carried out on the compaction groove from two perspectives of the normal situation and the situation after long-term use to ensure the compaction and forming quality of the magnetic core;

[0004] At the same time, to facilitate the demolding process of the magnetic core, a demolding agent is often sprayed inside the compaction groove. When the demolding agent is sprayed excessively, there will be a small amount of demolding agent at the bottom of the magnetic core after demolding, which is also likely to cause defects in the magnetic core sintering process and affect the final forming quality of the magnetic core. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a compaction and forming equipment for inductor magnetic core processing.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A compaction and forming equipment for inductor magnetic core processing, including a support frame and a cylinder two fixedly arranged on its top side wall. The output end of the cylinder two is fixedly provided with a surrounding rod. The inner side wall of the support frame is fixedly installed with a forming support table, and the surrounding rod is slidably matched with the top of the forming support table. A plurality of forming cavities are opened above the forming support table. A limiting core is arranged inside the forming cavity. An inner ring cleaning component for cleaning the inside of the forming cavity is arranged below the forming support table;

[0007] The inner ring cleaning component includes a resisting sleeve ring and a disc sleeved on the outer wall of the limiting core. The resisting sleeve ring is arranged inside the forming cavity and the bottom of the resisting sleeve ring is aligned with the bottom of the forming cavity;

[0008] A bottom wiping component for wiping the bottom of the magnetic core is arranged on one side of the forming support table.

[0009] Further, the top of the limiting core is aligned with the top of the forming cavity, and the bottom of the limiting core is connected to the support frame. The resisting collar and the disc are connected by two sets of push rods.

[0010] Further, the bottom of the push rod extends below the disc, and the bottoms of multiple groups of the push rods are jointly connected to an H-shaped frame. The distance between the bottom of the resisting collar and the top of the disc is the same as the length of the forming cavity.

[0011] Further, the lower part of the H-shaped frame is fixedly connected to the support frame through a first cylinder; air tanks are arranged at the bottoms of both sides of the H-shaped frame, a piston plate is slidably arranged inside the air tank, and a piston rod is fixedly arranged on the top wall of the piston plate;

[0012] Further, the top of the piston rod movably penetrates above the air tank and is fixedly connected to the bottom of the H-shaped frame, and a thrust spring is sleeved on the outer wall of the piston rod located inside the air tank.

[0013] Further, an inner through pipe is arranged inside the limiting core, multiple spray pipes are arranged on the top side wall of the inner through pipe, and adjacent two inner through pipes are communicated through a connecting pipe.

[0014] Further, the bottom of the connecting pipe is communicated with the output end of the air tank through an intake pipe; a selection inlet part is arranged at the output end of the air tank; the selection inlet part includes a selection inlet pipe communicated with the input end of the air tank, an intake pipe is inserted on the side wall of the selection inlet pipe, and a filtering tooling is arranged at the input end of the selection inlet pipe.

[0015] Further, the bottom wiping assembly includes a cleaning pool arranged above the support frame, collection boxes are fixedly connected to both sides of the cleaning pool, three groups of conveying rollers are arranged above the cleaning pool, two groups of the conveying rollers are respectively rotatably arranged on both sides of the forming support table, and one group of the conveying rollers is rotatably arranged above the inner wall of the cleaning pool. A wiping belt is jointly driven on the outer walls of the three groups of conveying rollers.

[0016] Further, upper baffles are arranged above the inner walls on both sides of the wiping belt, and lower scraping plates are arranged above the outer walls on both sides of the wiping belt.

[0017] Further, the upper baffles and the lower scraping plates are arranged oppositely, the upper baffles are fixedly connected to the forming support table, the lower scraping plates are fixedly connected to the collection boxes, and the filtering tooling is located inside the cleaning pool.

[0018] The technical effects and advantages of the present invention:

[0019] 1. In the present invention, the first cylinder is controlled to extend, pushing the H-shaped frame upward, causing the push rod to synchronously drive the disc and the resisting collar upward until the top of the resisting collar is pushed to align with the top of the forming support table. Then, the second cylinder is controlled to extend to the blanking position, pushing the encircling rod to one side, first pushing the magnetic core above the forming support table above the wiping belt, and completing the wiping of the release agent at the bottom of the magnetic core through the transmission of the wiping belt, avoiding the influence of the release agent at the bottom of the magnetic core on its subsequent calcination and forming quality.

[0020] 2. During the extension of the first cylinder in the present invention, the resisting collar pushes the particles inside the forming cavity above the forming support table, completing the preliminary cleaning of the forming cavity. The piston rod moves upward, squeezing the gas above the piston plate into the intake pipe and spraying it onto the inner wall of the forming cavity through the spray pipe to clean the inside of the forming cavity again. Thus, after the magnetic core is formed, the compaction groove is randomly and mildly cleaned. By moving the bottom of the resisting collar to align with the top of the forming support table, at this time, the liquid enters the selection pipe through the cleaning pool and is discharged into the forming cavity through the spray pipe on the inner through pipe to deeply flush and clean the inside of the forming cavity. The forming cavity is cleaned from two perspectives, namely the normal situation and the situation after long-term use, to ensure the compaction and forming quality of the magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional external view of the overall structure in the present invention.

[0022] Figure 2 It is a three-dimensional view of the encircling rod and the second cylinder in the present invention.

[0023] Figure 3 It is a three-dimensional side view of the bottom wiping assembly in the present invention.

[0024] Figure 4 It is a three-dimensional view of the bottom wiping assembly in the present invention.

[0025] Figure 5 It is a three-dimensional view of the inner ring cleaning assembly in the present invention.

[0026] Figure 6 It is an enlarged three-dimensional view of the structure of the inner ring cleaning assembly in the present invention.

[0027] Figure 7 It is a three-dimensional view of the resisting collar and the limiting core in the present invention.

[0028] Figure 8 It is a three-dimensional view of the connecting pipe and the intake pipe in the present invention.

[0029] Figure 9 It is a three-dimensional view of the selection part in the present invention.

[0030] Figure 10 This is a three-dimensional view of the internal structure of the molding cavity in the present invention.

[0031] The reference numerals are: 1, conveyor; 2, support frame; 3, molding support table; 4, bottom wiping assembly; 5, inner ring cleaning assembly; 6, molding cavity; 7, limiting core; 8, resisting collar; 9, enclosing rod; 10, cylinder two; 41, wiping belt; 42, conveying roller; 43, collection box; 44, cleaning pool; 45, support plate; 46, upper baffle; 47, lower scraper; 51, air box; 52, piston plate; 53, cylinder one; 54, H-shaped frame; 55, push rod; 56, disc; 571, selecting inlet pipe; 572, inlet pipe; 573, filtering tooling; 58, piston rod; 59, connecting pipe; 510, inlet pipe; 511, inner through pipe. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: Please refer to Figures 1 - 10 As shown, for the problem that the inside of the compaction groove in the prior art is likely to remain with powder or other impurities, and the residual hard particles scratch the surface of the compaction groove under high pressure, the following solutions can be adopted;

[0034] In this embodiment, a compaction and molding device for manufacturing an inductor magnetic core includes a support frame 2 and a cylinder two 10 fixedly arranged on its top side wall. The output end of the cylinder two 10 is fixedly provided with an enclosing rod 9. An inner side wall of the support frame 2 is fixedly installed with a molding support table 3, and the enclosing rod 9 is slidably matched with the top of the molding support table 3; it should be noted here that: a rubber pad is provided at the bottom of the enclosing rod 9, and the release agent and dust above the molding support table 3 are all scraped clean through the rubber pad;

[0035] Above the forming support platform 3, multiple forming cavities 6 are provided, and a limiting core 7 is arranged inside the forming cavity 6; below the forming support platform 3, an inner ring cleaning assembly 5 for cleaning the inside of the forming cavity 6 is arranged; the inner ring cleaning assembly 5 includes a resisting collar 8 and a disc 56 sleeved on the outer wall of the limiting core 7. The resisting collar 8 is arranged inside the forming cavity 6, and the bottom of the resisting collar 8 is aligned with the bottom of the forming cavity 6. The top of the limiting core 7 is aligned with the top of the forming cavity 6. Two groups of push rods 55 are connected between the resisting collar 8 and the disc 56. The bottom of the push rod 55 extends below the disc 56, and the bottoms of multiple push rods 55 are commonly connected with an H-shaped frame 54. The distance between the bottom of the resisting collar 8 and the top of the disc 56 is the same as the length of the forming cavity 6;

[0036] And the bottom of the limiting core 7 is connected with the support frame 2, and the bottoms of the two outermost limiting cores 7 are connected with the top of the air box 51;

[0037] Then: Control the first cylinder 53 to extend, push the H-shaped frame 54 upward, and let the push rod 55 drive the disc 56 and the resisting collar 8 to move upward synchronously until the top of the resisting collar 8 is pushed to be aligned with the top of the forming support platform 3. Then control the second cylinder 10 to extend to the blanking position, push the encircling rod 9 to one side, push the magnetic core above the forming support platform 3 to above the wiping belt 41 first, and complete the wiping of the release agent at the bottom of the magnetic core through the transmission of the wiping belt 41 to avoid the release agent at the bottom of the magnetic core affecting its subsequent calcination and forming quality; by the way, push the particles above the forming support platform 3 to above the wiping belt 41 for recovery and removal;

[0038] The bottom of the H-shaped frame 54 is fixedly connected with the support frame 2 through the first cylinder 53; air boxes 51 are arranged at the bottoms on both sides of the H-shaped frame 54. A piston plate 52 is slidably arranged inside the air box 51. A piston rod 58 is fixedly arranged on the top wall of the piston plate 52. The top of the piston rod 58 movably penetrates above the air box 51 and is fixedly connected with the bottom of the H-shaped frame 54; a thrust spring is sleeved on the outer wall of the piston rod 58 located inside the air box 51;

[0039] An inner through pipe 511 is arranged inside the limiting core 7. Multiple spray pipes are arranged on the top side wall of the inner through pipe 511. The multiple spray pipes are circularly arranged relative to the center line of the limiting core 7. Adjacent two inner through pipes 511 are communicated through a communicating pipe 59;

[0040] The bottom of the communicating pipe 59 is communicated with the output end of the air box 51 through an intake pipe 510. A selection inlet part is arranged at the output end of the air box 51; the selection inlet part includes a selection inlet pipe 571 communicated with the input end of the air box 51. An intake pipe 572 is inserted on the side wall of the selection inlet pipe 571. A filtering tooling 573 is arranged at the input end of the selection inlet pipe 571;

[0041] During the extension of cylinder 1 53, control valve 2 is in the open state at this time: the resistance collar 8 pushes the particles above the forming cavity 6 to above the forming support table 3, completing the preliminary cleaning of the forming cavity 6. At the same time, the piston rod 58 moves upward, squeezing the gas above the piston plate 52 into the intake pipe 510, entering the inner through pipe 511 through the connecting pipe 59, and finally spraying onto the inner wall of the forming cavity 6 through the nozzle, cleaning the inside of the forming cavity 6 again. Thus, after the magnetic core is formed, the compaction groove is randomly and mildly cleaned to ensure the compaction and forming quality of the magnetic core;

[0042] It should be supplemented here that: control valve 1 and control valve 2 are respectively arranged on the outer walls of the intake pipe 571 and the air inlet pipe 572. The filtering tooling 573 is a functional device in the prior art that has the function of filtering the cleaning water inside the cleaning pool 44, which belongs to the prior art and will not be elaborated here too much. It only needs to have the filtering function for the above-mentioned cleaning water; a one-way valve is arranged on the outer wall of the intake pipe 510;

[0043] Secondly, after the inside of the forming cavity 6 is deeply cleaned, there is a small amount of moisture inside the air tank 51, which does not affect its subsequent mild cleaning of the inside of the forming cavity 6; and there are air holes at the bottom of the air tank 51 to ensure the stability of the reciprocating movement of the piston plate 52;

[0044] Embodiment 2: Please refer to Figures 1 - 4 As shown, for the problem that there is a small amount of release agent at the bottom of the magnetic core after demolding, which is also likely to cause defects in the magnetic core sintering process and affect the final forming quality of the magnetic core, the following solutions can be adopted;

[0045] A bottom wiping assembly 4 for wiping the release agent at the bottom of the magnetic core is arranged on one side of the forming support table 3; the bottom wiping assembly 4 includes a cleaning pool 44 arranged above the support frame 2. Collection boxes 43 are fixedly connected to both sides of the cleaning pool 44. Three groups of conveying rollers 42 are arranged above the cleaning pool 44. Two groups of conveying rollers 42 are respectively rotatably arranged on both sides of the forming support table 3, and one group of conveying rollers 42 is rotatably arranged above the inner wall of the cleaning pool 44. A wiping belt 41 is commonly driven on the outer walls of the three groups of conveying rollers 42;

[0046] A support plate 45 is arranged on the outer wall of the support frame 2 directly below the wiping belt 41 for the purpose of supporting the magnetic core;

[0047] Upper baffles 46 are arranged above the inner walls on both sides of the wiping belt 41, and lower scraping plates 47 are arranged above the outer walls on both sides of the wiping belt 41. The upper baffles 46 and the lower scraping plates 47 are arranged opposite to each other. The upper baffles 46 are fixedly connected to the forming support table 3, and the lower scraping plates 47 are fixedly connected to the collection boxes 43. The filtering tooling 573 is located inside the cleaning pool 44;

[0048] Please refer toFigures 1 - 3 As shown in the figure, a conveyor 1 is provided on the other side of the support frame 2, and the top of the conveying tooling is aligned with the top of the wiping belt 41; it should be noted here that the conveyor 1 is a functional device in the prior art that has the function of conveying the formed magnetic core, which belongs to the prior art and will not be elaborated here too much, as long as it has the function of conveying the above-mentioned formed magnetic core;

[0049] Please refer to Figure 1 As shown in the figure, a forming upper die set is provided above the forming support table 3. The forming upper die set is a device in the prior art that has the function of pressing the magnetic core raw material, which belongs to the prior art and will not be elaborated here too much;

[0050] In this embodiment: By controlling the rotation of the three groups of conveying rollers 42, the wiping belt 41 is driven to move. That is, the wiping belt 41 is composed of a conveyor belt and a sponge. After the wiping belt 41 wipes the release agent at the bottom of the magnetic core, it is first scraped and cleaned by the upper baffle 46 and the lower scraper 47 on one side, then enters the interior of the cleaning pool 44 for soaking, and finally is scraped clean again, and the water is scraped into the interior of the collection box 43. Then, the wiped belt 41 after cleaning is used to clean the bottom of the magnetic core again;

[0051] In the present invention, it can be seen from combining Embodiment 1 and Embodiment 2 that: By controlling the extension of the first cylinder 53, that is, the resisting collar 8 pushes the particles inside the forming cavity 6 to above the forming support table 3 to complete the preliminary cleaning of the forming cavity 6. The gas is sprayed onto the inner wall of the forming cavity 6 through the spray pipe to clean the inside of the forming cavity 6 again. Control the first cylinder 53 to continue to extend upward, and the liquid is discharged into the interior of the forming cavity 6 through the spray pipe on the inner through pipe 511 to perform a deep flushing and cleaning of the inside of the forming cavity 6. The forming cavity 6 is cleaned from two perspectives, namely the normal situation and the situation after long-term use, to ensure the compaction and forming quality of the magnetic core;

[0052] Working principle:

[0053] Step 1: After putting the magnetic core raw material into the compaction groove, the compaction groove is pressed by the forming upper die set to form a magnetic core;

[0054] Step 2: First, control the first cylinder 53 to extend, push the H-shaped frame 54 upward, so that the push rod 55 drives the disc 56 and the resisting collar 8 to move upward synchronously until the top of the resisting collar 8 is pushed to align with the top of the forming support table 3. Then, control the second cylinder 10 to extend to the blanking position, push the encircling rod 9 to one side, and first push the magnetic core above the forming support table 3 to above the wiping belt 41, and complete the wiping of the release agent at the bottom of the magnetic core through the movement of the wiping belt 41, so as to avoid the release agent at the bottom of the magnetic core affecting its subsequent calcination and forming quality;

[0055] During the extension of cylinder 1 53, control valve 2 is in the open state at this time: the retaining collar 8 pushes the particles above the forming cavity 6 to above the forming support table 3 to complete the preliminary cleaning of the forming cavity 6. At the same time, the piston rod 58 moves upward, squeezing the gas above the piston plate 52 into the intake pipe 510, entering the inner through pipe 511 through the connecting pipe 59, and finally spraying it onto the inner wall of the forming cavity 6 through the nozzle to clean the inside of the forming cavity 6 again, so as to achieve random mild cleaning of the compaction groove after the magnetic core is formed and ensure the compaction and forming quality of the magnetic core;

[0056] Step 3: Finally, the magnetic core is pushed above the conveyor 1 for conveying and subsequent processing;

[0057] When the forming cavity 6 is deeply cleaned: open control valve 2 and close control valve 1, control the extension of the extending end of cylinder 1 53 to move the bottom of the retaining collar 8 to align with the top of the forming support table 3. At this time, the liquid enters the selective intake pipe 571 from the cleaning pool 44 and is discharged into the forming cavity 6 through the nozzle on the inner through pipe 511 to deeply wash and clean the inside of the forming cavity 6, cleaning the compaction groove from the perspectives of both normal conditions and after long-term use to ensure the compaction and forming quality of the magnetic core;

[0058] Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A compaction molding device for processing an inductor core, comprising a support frame (2) and a cylinder 2 (10) fixedly arranged on the top side wall thereof, characterized in that: A locking rod (9) is fixedly provided at the output end of the second cylinder (10), a molding support platform (3) is fixedly installed on the inner side wall of the support frame (2), and the locking rod (9) is slidably matched with the top of the molding support platform (3), a plurality of molding cavities (6) are provided above the molding support platform (3), a limiting core (7) is provided inside the molding cavity (6), and an inner ring cleaning component (5) for cleaning the inside of the molding cavity (6) is provided below the molding support platform (3); The inner ring cleaning assembly (5) comprises a resisting collar (8) and a disc (56) sleeved on the outer wall of the limiting core (7); the resisting collar (8) is arranged in the molding cavity (6) and the bottom of the resisting collar (8) is aligned with the bottom of the molding cavity (6); A bottom wiping component (4) for wiping the bottom of the magnetic core is provided on one side of the forming support platform (3).

2. The compaction molding equipment for inductor core processing according to claim 1, characterized in that: The top of the limiting core (7) is aligned with the top of the molding cavity (6), and the bottom of the limiting core (7) is connected to the support frame (2). The resisting collar (8) and the disc (56) are connected via two sets of push rods (55).

3. The compaction molding equipment for processing an inductor core according to claim 2, characterized in that: The bottom of the push rod (55) extends to the bottom of the disc (56), and the bottoms of multiple groups of push rods (55) are commonly connected to an H-shaped frame (54). The distance between the bottom of the retaining ring (8) and the top of the disc (56) is the same as the length of the molding cavity (6).

4. The compaction molding equipment for processing an inductor core according to claim 3, characterized in that: The bottom of the H-shaped frame (54) is fixedly connected to the support frame (2) via a cylinder 1 (53); air boxes (51) are provided at the bottom of both sides of the H-shaped frame (54), a piston plate (52) is slidably provided inside the air box (51), and a piston rod (58) is fixedly provided on the top wall of the piston plate (52).

5. The compaction molding equipment for processing an inductor core according to claim 4, characterized in that: The top of the piston rod (58) movably penetrates the top of the air box (51) and is fixedly connected to the bottom of the H-shaped frame (54). The outer wall of the piston rod (58) located inside the air box (51) is sleeved with a thrust spring.

6. The compaction molding equipment for processing an inductor core according to claim 5, characterized in that: An inner through tube (511) is provided inside the limiting core (7), a plurality of nozzles are provided on the top side wall of the inner through tube (511), and two adjacent inner through tubes (511) are connected via a connecting tube (59).

7. The compaction molding equipment for processing an inductor core according to claim 6, characterized in that: The bottom of the connecting pipe (59) is connected to the output end of the air box (51) through an intake pipe (510), and the output end of the air box (51) is provided with an intake member; the intake member comprises an intake pipe (571) connected to the input end of the air box (51), an intake pipe (572) is inserted into the side wall of the intake pipe (571), and a filter tool (573) is provided at the input end of the intake pipe (571).

8. The compaction molding equipment for processing an inductor core according to claim 7, characterized in that: The bottom wiping assembly (4) comprises a cleaning pool (44) arranged above the support frame (2), and both sides of the cleaning pool (44) are fixedly connected with a collection box (43), and three groups of conveying rollers (42) are arranged above the cleaning pool (44), two groups of the conveying rollers (42) are rotatably arranged on both sides of the forming support platform (3), one group of the conveying rollers (42) is rotatably arranged above the inner wall of the cleaning pool (44), and the outer walls of the three groups of the conveying rollers (42) are jointly driven and provided with a wiping belt (41).

9. The compaction molding equipment for processing an inductor core according to claim 8, characterized in that: Upper baffles (46) are provided above the inner walls on both sides of the wiping belt (41), and lower scrapers (47) are provided above the outer walls on both sides of the wiping belt (41).

10. The compaction molding equipment for processing an inductor core according to claim 9, characterized in that: The upper baffle (46) and the lower scraper (47) are arranged opposite to each other, the upper baffle (46) is fixedly connected to the forming support platform (3), the lower scraper (47) is fixedly connected to the collection box (43), and the filtering tool (573) is located in the cleaning pool (44).

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