Shell core pressing and forming device and equipment for the production of high current shielded power inductors

Abstract

The present invention discloses a shell magnetic core pressing and forming device for the production of high-current shielded power inductors, a support frame, a first support platform and a second support platform, the first support platform and the second support platform are arranged in parallel and spaced apart; a die driving member installed on the first support platform; an upper die installed on the bottom of the first support platform and connected to the die driving member by transmission; and a lower die installed on the second support platform in a sliding manner corresponding to the upper die. The present invention has the characteristics of being able to press and form a shell magnetic core applied to high currents at one time.

Description

Technical Field

[0001] The invention relates to a shell magnetic core pressing and forming device for producing a large current shielded power inductor. Background Art

[0002] With the improvement of productivity, electronic products are updated quickly. The components that can produce inductance in electronic products are collectively called inductance components, often simply referred to as inductors. Inductors are electromagnetic induction components wound with insulated wires (such as enameled wires, sand-wrapped wires, etc.), and are commonly used components. The role of inductors: pass DC and block AC. This is a simple statement, isolating AC signals, filtering, or forming a resonant circuit with capacitors, resistors, etc.

[0003] It can be seen that the change of inductance following current is: when the current becomes larger, the magnetic field will become stronger, and the direction of the magnetic field change is the same as the original magnetic field. According to the left-hand screw rule, the generated induced current is opposite to the original current, and the inductor current decreases; when the current becomes smaller, the magnetic field will become weaker, and the direction of the magnetic field change is opposite to the original magnetic field. According to the left-hand screw rule, the generated induced current is the same as the original current, and the inductor current increases.

[0004] In addition, during the production process, some high currents are required to obtain high current inductors. High current inductors have high stability and can withstand high currents. Therefore, high current inductors will affect surrounding equipment. However, the existing technology does not provide effective magnetic shielding. Summary of the invention

[0005] The purpose of the present invention is to provide a shell core pressing and forming device for producing high-current shielded power inductors in view of the defects of the prior art.

[0006] In order to achieve the above-mentioned purpose of the present invention, the following technical scheme is adopted:

[0007] A shell magnetic core pressing and forming device for producing high-current shielded power inductors, comprising a support frame, a first support platform and a second support platform, wherein the first support platform and the second support platform are arranged in parallel and spaced apart; a die driving component installed on the first support platform; an upper die component installed on the bottom of the first support platform and connected to the die driving component by transmission; and a lower die component, which is slidably installed on the second support platform corresponding to the upper die component.

[0008] Furthermore, the shell core pressing and forming device for the production of high-current shielded power inductors of the present invention also includes a guide rail, a first positioning sensor, a second positioning sensor, a discharge port, a push-pull drive and a controller; a guide rail is installed on each side of the lower mold; a second positioning sensor is installed at one end of the guide rail, and a first positioning sensor is installed at the other end; and a discharge port is provided on the second support platform near the first positioning sensor; the push-pull drive is installed on the second support platform near the second positioning sensor, and is transmission-connected to the lower mold; the controller is installed on the first support platform or the second support platform; wherein the first positioning sensor, the second positioning sensor, the push-pull drive, and the die drive are all electrically connected to the controller. As common knowledge in the art, the controller used in this scheme and the motion control of the devices connected thereto belong to mature single-chip microcomputer technology, which can be easily purchased on the market and can be used after simple debugging.

[0009] Furthermore, the shell core pressing and forming device for producing high-current shielded power inductors of the present invention also includes a demolding drive and a pushing member; the demolding drive is installed on the first supporting platform corresponding to the discharge port; the pushing member is installed on the top of the discharge port and is transmission-connected to the demolding drive; wherein the push-pull drive is electrically connected to the controller.

[0010] Furthermore, the shell magnetic core pressing and forming device for producing high-current shielded power inductors of the present invention also includes a conveyor; and the conveyor is installed at the bottom of the discharge port.

[0011] Furthermore, the lower mold is provided with an open accommodating space.

[0012] Furthermore, the upper mold component includes a first pressing component, a second pressing component, a hole-making column and an arc-shaped component; the first pressing component is superimposed and installed on the second pressing component, and protrudes from the edge of the second pressing component to form an eaves structure, and multiple hole-making columns are installed on the eaves structure; an arc-shaped component is provided at each end of the second pressing component.

[0013] Furthermore, the shell magnetic core pressing and forming device for producing high-current shielded power inductors of the present invention also includes a scraping piece; the scraping piece is installed on the top of the lower mold, and slides to scrape the material in the lower mold.

[0014] Furthermore, the scraping member includes a bracket, a slider, a scraper plate, a screw, a screw drive motor and a guide rod; a screw and a screw drive motor are installed on one side of the top of the bracket, and a guide rod is installed on the other side, and the screw drive motor is connected to the screw transmission; one end of the slider is connected to the screw transmission, and the other end is slidably connected to the guide rod; the scraper plate is installed on the slider for scraping the top material of the lower module.

[0015] Furthermore, the shell core pressing and forming device for producing high-current shielded power inductors of the present invention also includes a first shaft support and a second shaft support; one end of the screw is rotatably connected to the bracket through the first bearing seat, and the other end thereof passes through the second shaft support and is transmission-connected to the screw drive motor; and the second shaft support is placed on the top of the bracket.

[0016] Furthermore, the scraper plate is installed in an inclined manner.

[0017] A device uses the above-mentioned shell magnetic core pressing and molding device for producing high-current shielded power inductors.

[0018] The present invention has the following improvements over the prior art:

[0019] 1. The present invention has a shell magnetic core that can be pressed and formed at one time and applied to shielding large current inductors; the top and bottom of the lower mold are both open structures, and the second supporting platform supports the lower mold, which can achieve the bottom blocking of the lower mold, so that the lower mold can limit the material used for preparing the shell magnetic core therein; it is convenient for the die driving part to drive the upper mold to squeeze the material in the lower mold to press it into the shell magnetic core.

[0020] 2. The present invention adds installation guide rails, a first positioning sensor, a second positioning sensor, a discharge port, a push-pull drive member and a controller; the controller controls each component according to the data signals transmitted by the first positioning sensor and the second positioning sensor; the first positioning sensor and the second positioning sensor are combined to position the lower module, which can facilitate accurate positioning of the lower module during the sliding process, so that the upper module and the lower module can work in matching relationship with each other.

[0021] 3. The present invention adopts a demoulding driving member and a pushing member to realize demoulding of the lower mold. When the lower mold moves to the discharge port, the demoulding driving member drives the pushing member to move toward the lower mold while squeezing the outer shell magnetic core in the lower mold to demould; it can help improve the demoulding efficiency.

[0022] 4. The present invention is provided with a conveyor below the discharge port, and the conveyor promptly conveys the shell magnetic cores dropped from the discharge port to the outside, so as to prevent the shell magnetic cores from accumulating below the discharge port.

[0023] 5. The present invention adopts a scraping piece to smooth the material used to prepare the shell magnetic core contained in the lower mold, and the scraping piece includes a bracket, a slider, a scraper plate, a screw, a screw drive motor and a guide rod; the bracket supports the slider and the scraper plate and is located at the top of the lower mold, the screw drive motor drives the screw to rotate, the screw drives the slider to move along the guide rod, and the slider drives the scraper plate to move, so that the scraper plate scrapes the material on the top of the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a structural schematic diagram of a shell magnetic core pressing and forming device and equipment for producing high-current shielded power inductors of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the discharge port, the lower mold part and the scraping part in the present invention;

[0027] Figure 3 It is a schematic diagram of the structure between the upper mold and the lower mold in the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the shell magnetic core formed by pressing in the lower mold in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the upper module in the present invention;

[0030] Figure 6 for Figure 5 Schematic diagram of the structure of the middle hole column;

[0031] Figure 7 A schematic diagram of the structure of the shell magnetic core pressed and formed by the present invention;

[0032] Figure 8 It is a structural schematic diagram of the scraping member in the present invention;

[0033] Names and serial numbers of components in the figure:

[0034] 1-support frame, 2-first support platform, 3-demolding drive member, 4-pressing die drive member, 5-controller, 6-upper mold member, 61-first pressing member, 62-hole making column, 63-second pressing member, 64-arc member, 7-push-pull drive member, 8-second positioning sensor, 9-lower mold member, 91-accommodating space, 10-scraping member, 101-bracket, 102-first shaft support, 103-slider, 104-scraper plate, 105-screw, 106-second shaft support, 107-screw drive motor, 108-guide rod, 11-second support platform, 12-guide rail, 13-discharging port, 14-conveyor, 15-first positioning sensor, 16-pushing member, 17-shell magnetic core, 171-shell body, 172-coil accommodating space, 173-countersunk hole, 174-arc groove. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0036] like Figure 1-8 As shown, a shell core pressing and forming device for the production of high-current shielded power inductors comprises a supporting frame 1, which has a first supporting platform 2 and a second supporting platform 11, wherein the first supporting platform 2 and the second supporting platform 11 are arranged in parallel and spaced apart; a die driving member 4, which is installed on the first supporting platform 2; an upper die member 6, which is installed on the bottom of the first supporting platform 2 and is transmission-connected to the die driving member 4; and a lower die member 9, which is slidingly installed on the second supporting platform 11 corresponding to the upper die member 6.

[0037] Working method:

[0038] The material for preparing the shell magnetic core is placed in the lower mold 9, compacted and smoothed, and the die driving member 4 is started. The die driving member 4 drives the upper mold 6 to move toward the lower mold 9, while the upper mold 6 presses the material in the lower mold 9 into shape to obtain the shell magnetic core 17, and then the shell magnetic core is demolded from the lower mold 9.

[0039] The upper mold 6 and the lower mold 9 cooperate with each other, so that the material in the lower mold 9 is pressed and formed at one time.

[0040] In some embodiments, in order to facilitate the movement and demoulding of the lower mold, a guide rail 12, a first positioning sensor 15, a second positioning sensor 8, a discharge port 13, a push-pull drive member 7 and a controller 5 are additionally installed.

[0041] A guide rail 12 is installed on each side of the lower mold 9; a second positioning sensor 8 is installed on one end of the guide rail 12, and a first positioning sensor 15 is installed on the other end thereof; and a discharge port 13 is opened on the second support platform 12 near the first positioning sensor 15; the push-pull drive member 7 is installed on the second support platform 12 near the second positioning sensor 8, and is transmission-connected to the lower mold 9; the controller 5 is installed on the first support platform 2 or the second support platform 11; wherein, the first positioning sensor 15, the second positioning sensor 8, the push-pull drive member 7, and the die drive member 4 are all electrically connected to the controller 5.

[0042] Working method:

[0043] The controller 5 sets the telescopic stroke of the die driving member 4. When the die driving member completes a telescopic stroke, the controller 5 controls other devices to perform corresponding work.

[0044] The material used to prepare the shell magnetic core is placed in the lower mold 9 and compacted and smoothed. The die driving component 4 can be controlled by the controller 5 to start working. The die driving component 4 drives the upper mold 6 to move toward the lower mold 9 while squeezing the material in the lower mold 9. The die driving component 4 drives the upper mold 6 to move to the set stroke and then returns to reset, so that the shell magnetic core can be obtained in the lower mold 9.

[0045] After the die drive 4 is reset, the controller 5 controls the start of the push-pull drive 7. When the push-pull drive 7 pushes the lower mold 9 to move along the guide rail 12 until it touches the first positioning sensor 15, the first positioning sensor 15 sends a signal instruction to the controller 5. The controller 5 controls the push-pull drive 7 to pause for 5 to 10 seconds according to the signal instruction. At this time, the lower mold 9 spans the discharge port 13, and the pressed shell magnetic core in the lower mold 9 can be demolded and discharged into the discharge port 13. The shell magnetic core is discharged downward through the discharge port 13. After pausing for a set time, the controller 5 controls the push-pull drive 7 to return and reset. When the push-pull drive 7 touches the second positioning sensor 8, the second positioning sensor 8 sends an information instruction to the controller 5. The controller 5 controls the push-pull drive 7 to pause according to the signal instruction, and the push-pull drive 7 drives the lower mold 9 to reset.

[0046] The controller 5 sets the pause time to 40 to 120 seconds after the push-pull driving member 7 is reset; after the pause time reaches the set time, the controller 5 controls the die driving member 4 to work, thereby repeating the cycle work in sequence.

[0047] In some embodiments, in order to improve the demoulding efficiency, a demoulding driving member 3 and a pushing member 16 are additionally installed.

[0048] The demoulding drive member 3 is installed on the first supporting platform 2 corresponding to the discharge port 13; the pushing member 16 is installed on the top of the discharge port 13 and is transmission-connected with the demoulding drive member 3; wherein the push-pull drive member 3 is electrically connected to the controller 5.

[0049] Working method:

[0050] After the push-pull driving component 7 pushes the lower mold 9 to touch the first positioning sensor 15, the first positioning sensor 15 sends a data signal to the controller 5, and the controller 5 controls the push-pull driving component 7 to stop working and the demolding driving component 3 to work according to the data signal; while the demolding driving component 3 drives the pushing component 16 to move toward the lower mold 9, the pushing component 16 squeezes the shell magnetic core out of the lower mold 9 and demolds it, and discharges it downward through the discharge port 13.

[0051] In some embodiments, in order to facilitate the external conveyance of the shell magnetic core discharged from the discharge port, a conveyor (14) is additionally installed. The conveyor 14 is installed at the bottom of the discharge port 13. The discharge port 13 discharges the shell magnetic core to the conveyor 14, and the conveyor 14 conveys the shell magnetic core to the outside in a timely manner to prevent the shell magnetic core from accumulating below the discharge port.

[0052] In some embodiments, a structural form of the lower mold is provided. The lower mold 9 is provided with an open accommodation space 91, which is convenient for placing materials on the lower mold for pressing and forming the shell magnetic core.

[0053] In some embodiments, a structural form of the upper mold is provided. The upper mold 6 includes a first pressing member 61 , a second pressing member 63 , a hole-making column 62 and an arc-shaped member 64 .

[0054] The first pressing member 61 is mounted on the second pressing member 63 and protrudes from the edge of the second pressing member 63 to form an eave structure, and a plurality of hole-making columns 62 are installed on the eave structure; an arc-shaped member 64 is respectively provided at both ends of the second pressing member 63 .

[0055] The arc-shaped member 64 squeezes the material in the lower mold member 9 to form an arc-shaped groove 174 of the shell magnetic core.

[0056] The second pressing member 63 presses the material in the lower mold member 9 to form a coil accommodating space 172 of the outer shell magnetic core.

[0057] The hole-making column 62 cooperates with the first pressing piece 61 and the second pressing piece 63 to press the material in the lower mold 9 into a countersunk hole 173 .

[0058] The first pressing member 61 and the second pressing member 63 jointly press the material in the lower mold 9 to form the outer shell 171 .

[0059] In some embodiments, in order to facilitate the flattening of the material on the top of the lower module, a scraper 10 is additionally installed; the scraper 10 is installed on the top of the lower module 9, and slides to scrape the material in the lower module 9 flat.

[0060] In the above embodiment, a structural form of the scraping member is further provided.

[0061] The scraping member 10 includes a bracket 101 , a slider 103 , a scraping plate 104 , a lead screw 105 , a lead screw driving motor 107 and a guide rod 108 .

[0062] A lead screw 105 and a lead screw drive motor 107 are installed on one side of the top of the bracket 101, and a guide rod 108 is installed on the other side thereof, and the lead screw drive motor 107 is transmission-connected to the lead screw 105; one end of the slider 103 is transmission-connected to the lead screw 105, and the other end thereof is slidingly connected to the guide rod 108; the scraper plate 104 is installed on the slider 103, and is used to scrape the top material of the lower module 9.

[0063] Working method:

[0064] After the material used to prepare the shell magnetic core is placed in the lower mold 9, the screw drive motor 107 can be started. The screw drive motor 107 drives the screw 105 to rotate. One end of the slider 103 is transmission connected to the screw 105, and the other end is slidingly connected to the guide rod 108. Therefore, the screw 105 drives the slider 103 to slide along the guide rod 108, and the slider 103 drives the scraper plate 104 to move. During the movement of the scraper plate 104, the top of the material in the lower mold 9 is smoothed.

[0065] In the above embodiment, a first shaft support 102 and a second shaft support 106 are further installed; one end of the screw 105 is rotatably connected to the bracket 101 through the first bearing seat 102, and the other end thereof passes through the second shaft support 106 and is transmission-connected to the screw drive motor 107; and the second shaft support 106 is placed on the top of the bracket 101.

[0066] In some embodiments, the scraper plate 104 is installed in an inclined manner to facilitate leveling the top material on the lower mold.

[0067] A device uses the shell magnetic core pressing and forming device for producing high-current shielded power inductors described in any of the above embodiments.

[0068] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A shell core pressing and forming device for the production of high current shielded power inductors, characterized in that: A support frame (1) comprises a first support platform (2) and a second support platform (11), wherein the first support platform (2) and the second support platform (11) are arranged in parallel and at intervals; A die driving member (4) mounted on the first supporting platform (2); An upper mold component (6) is mounted on the bottom of the first supporting platform (2) and is drivingly connected to the die driving component (4); and A lower mold member (9) is slidably mounted on a second supporting platform (11) corresponding to the upper mold member (6); and further comprises a guide rail (12), a first positioning sensor (15), a second positioning sensor (8), a discharge port (13), a push-pull driving member (7) and a controller (5); A guide rail (12) is installed on each side of the lower mold (9); A second positioning sensor (8) is installed at one end of the guide rail (12), and a first positioning sensor (15) is installed at the other end thereof; and a discharge port (13) is provided on the second supporting platform (12) near the first positioning sensor (15); The push-pull driving member (7) is installed on the second supporting platform (12) near the second positioning sensor (8) and is transmission-connected to the lower mold member (9); The controller (5) is installed on the first supporting platform (2) or the second supporting platform (11); Wherein, the first positioning sensor (15), the second positioning sensor (8), the push-pull driving component (7), and the die driving component (4) are all electrically connected to the controller (5).

2. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 1 is characterized in that: It also includes a demoulding driving member (3) and a pushing member (16); The demoulding drive member (3) is installed on the first supporting platform (2) corresponding to the discharge port (13); The pushing member (16) is installed at the top of the discharge port (13) and is transmission-connected to the demoulding driving member (3); wherein the push-pull driving member (3) is electrically connected to the controller (5).

3. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 1 is characterized in that: It also includes a conveyor (14); the conveyor (14) is installed at the bottom of the discharge port (13).

4. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 1 is characterized in that: The lower mold (9) is provided with an open accommodation space (91).

5. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 1 is characterized in that: The upper mold (6) comprises a first pressing piece (61), a second pressing piece (63), a hole-making column (62) and an arc-shaped piece (64); The first pressing member (61) is mounted on the second pressing member (63) and protrudes from the edge of the second pressing member (63) to form an eaves structure, and a plurality of hole-making columns (62) are installed on the eaves structure; An arc-shaped piece (64) is respectively provided at both ends of the second pressing piece (63).

6. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to any one of claims 1 to 5, characterized in that: Also includes a scraping member (10); The scraping member (10) is installed on the top of the lower mold member (9) and slides to scrape the material in the lower mold member (9) flat.

7. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 6, characterized in that: The scraping member (10) comprises a bracket (101), a slider (103), a scraping plate (104), a lead screw (105), a lead screw driving motor (107) and a guide rod (108); A lead screw (105) and a lead screw drive motor (107) are installed on one side of the top of the bracket (101), and a guide rod (108) is installed on the other side thereof, and the lead screw drive motor (107) is drivingly connected to the lead screw (105); One end of the slider (103) is drivingly connected to the lead screw (105), and the other end is slidably connected to the guide rod (108); the scraper plate (104) is installed on the slider (103) and is used to scrape the top material of the lower mold (9).

8. The shell magnetic core pressing and forming device for producing high current shielded power inductors according to claim 7, characterized in that: It also includes a first shaft support (102) and a second shaft support (106); One end of the lead screw (105) is rotatably connected to the bracket (101) via a first bearing seat (102), and the other end thereof passes through a second shaft support (106) and is transmission-connected to a lead screw drive motor (107); and the second shaft support (106) is placed on the top of the bracket (101).

9. A device, characterized in that: A shell magnetic core pressing and forming device for producing a large current shielded power inductor as described in any one of claims 1 to 8 is used.

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