A magnetic core forming die

Abstract

This utility model relates to the field of magnetic core mold technology, and more particularly to a magnetic core forming mold, including a support frame for placing a lower mold and an upper mold. A middle mold extending into the lower mold is provided on the upper mold. A traction mechanism for driving the upper mold toward the lower mold is provided on the support frame. An extension plate is integrally connected to the outer wall of the lower mold. A driven piston component, movably connected to the extension plate, is fixedly connected to the upper mold. A mold-separating mechanism for separating the lower mold and the upper mold and achieving demolding is provided on the support frame via the extension plate and the driven piston component. This utility model utilizes a load-bearing base, a load-bearing support rod, and a load-bearing top plate to form the support frame. The upper mold is vertically raised and lowered by traction, and a communicating cavity is opened in the extension plate for the movable assembly of the driving piston component and the driven piston component. Furthermore, a reciprocating swing rod is provided in the extension plate for traction of the driving piston component, allowing the lower mold and the upper mold to separate smoothly, avoiding violent pulling that could affect the quality of the formed magnetic core.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core mold technology, and in particular to a magnetic core forming mold. Background Technology

[0002] The magnetic core mold consists of an upper mold, a middle mold, and a lower mold. The upper mold typically includes an upper molding module and upper punches arrayed on the upper molding module. The middle mold has a forming cavity in which the magnetic core completes the forming process. The lower mold includes a lower molding module and lower punches arrayed on the lower molding module. The lower punches correspond one-to-one with the upper punches and work together to extrude magnetic powder to form a magnetic core.

[0003] Existing magnetic core molds use demolding methods similar to traditional molds. For example, the EFD type magnetic core forming mold disclosed in CN209000749U changes the left-right mold opening method to the top-bottom mold opening method, which is suitable for the pressing and forming method of magnetic cores with tapered winding columns, improving pressing accuracy and production efficiency. The tapered forming cavity is easy to open. However, in order to overcome the mutual attraction between the upper and lower molds, a strong driving method is used. The single pulling method is very easy to cause violent tearing between the upper and lower molds, which can easily cause structural damage to the formed magnetic core, affect the forming quality of the formed magnetic core, and may even cause structural damage to both the upper and lower molds. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that it is difficult to demold the magnetic core mold smoothly, which affects the molding quality of the mold, and to propose a magnetic core molding mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnetic core forming mold includes a fixture support for placing a lower mold and an upper mold. An intermediate mold extending into the lower mold is provided on the upper mold. A traction mechanism for driving the upper mold toward the lower mold is provided on the fixture support. An extension plate is integrally connected to the outer wall of the lower mold. A driven piston component movably connected to the extension plate is fixedly connected to the upper mold. A mold-separating mechanism for separating the lower mold and the upper mold to achieve demolding is provided on the fixture support through the extension plate and the driven piston component.

[0007] Preferably, the appliance support includes a load-bearing base, and four load-bearing support rods are fixedly connected to the top of the load-bearing base, with a load-bearing top plate fixedly installed on the four load-bearing support rods.

[0008] Preferably, the lower mold is fixedly mounted on the load-bearing base, and the upper mold is mounted above the lower mold via a load-bearing support rod and a load-bearing top plate.

[0009] Preferably, the traction mechanism includes a right-angle guide rod integrally connected to the load-bearing support rod and slidably fitted in the upper mold, and a drive cylinder fixedly connected to the upper mold is fixedly installed on the load-bearing top plate.

[0010] Preferably, the mold-separating mechanism includes a guide flange integrally connected to the load-bearing base, a spiral lifting cover threaded onto the guide flange, a reciprocating rocker arm with its lower end movably abutting against the spiral lifting cover rotatably mounted in the extension plate, a communicating cavity with one end of which is slidably fitted with a driven piston, a driving piston being slidably fitted into the other end of the communicating cavity, and a lifting frame movably pulled by the reciprocating rocker arm fixedly connected to the driving piston.

[0011] Preferably, the guide flange and the lower mold are concentrically arranged on the load-bearing base, and the extension plate is a c-shaped structure with an opening in the middle.

[0012] Preferably, the communicating cavity is a U-shaped structure with both ends opening vertically upwards.

[0013] Preferably, a traction hole is provided at the upper end of the reciprocating swing arm, and a traction bolt is integrally connected to the lifting frame and slidably fitted into the driven piston.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model utilizes a load-bearing base, load-bearing support rods, and load-bearing top plate to form an appliance support, so as to facilitate the setting of corresponding upper and lower molds. By pulling the upper mold vertically up and down, the upper mold and the lower mold can be smoothly connected.

[0016] 2. In this utility model, a driven piston and an extension plate are connected to the upper mold and the lower mold respectively. A connecting cavity for moving the driven piston and the driven piston is opened in the extension plate. A reciprocating rocker arm for traction and driving the piston is set in the extension plate so that the lower mold and the upper mold can be separated smoothly, avoiding violent pulling that would affect the forming quality of the magnetic core. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a magnetic core forming mold proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the support structure for a magnetic core forming mold proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of a magnetic core forming mold proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the mold-separation mechanism of a magnetic core forming mold proposed in this utility model.

[0021] In the picture:

[0022] 1. Equipment bracket; 11. Load-bearing base; 12. Load-bearing support rod; 13. Load-bearing top plate;

[0023] 2. Lower mold; 3. Upper mold;

[0024] 4. Traction mechanism; 41. Right-angle guide rod; 42. Drive cylinder;

[0025] 5. Mold parting mechanism; 51. Guide flange; 52. Spiral lifting cover; 53. Extension plate;

[0026] 54. Reciprocating pendulum; 541. Traction elongated hole;

[0027] 55. Communicating cavity; 56. Driving piston component;

[0028] 57. Lifting frame; 571. Traction bolt;

[0029] 58. Driven piston component. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figures 1-4 A magnetic core forming mold includes an instrument support 1 for placing a lower mold 2 and an upper mold 3. The upper mold 3 is provided with a middle mold extending into the lower mold 2. By connecting the upper mold 3 and the lower mold 2, the middle mold is located in the space between the upper mold 3 and the lower mold 2. The upper mold 3 is provided with a feed port that penetrates the middle mold. The magnetic core corresponding to the middle mold is poured into the space between the upper mold 3 and the lower mold 2 through the feed port.

[0032] The fixture support 1 is equipped with a traction mechanism 4 for driving the upper mold 3 toward the lower mold 2. See the attached instruction manual for details. Figure 1 With appendix Figure 3 The traction mechanism 4 includes a right-angle guide rod 41 integrally connected to the load-bearing support rod 12 and slidably fitted in the upper mold 3. A drive cylinder 42 fixedly connected to the upper mold 3 is fixedly installed on the load-bearing top plate 13. The drive cylinder 42 can make the upper mold 3 vertically rise and fall along the right-angle guide rod 41, ensuring that the upper mold 3 can accurately dock with the lower mold 2 when it moves down to the lowest position.

[0033] An extension plate 53 is integrally connected to the outer wall of the lower mold 2, and a driven piston 58 that is fixedly connected to the upper mold 3 and movably connected to the extension plate 53 is fixedly connected to it.

[0034] The fixture support 1 is equipped with a mold-separating mechanism 5 via an extension plate 53 and a driven piston 58 for separating the lower mold 2 and the upper mold 3 to achieve demolding. See the attached instruction manual for details. Figure 1 With appendix Figure 3 Appendix Figure 4 The mold-separating mechanism 5 includes a guide flange 51 integrally connected to the load-bearing base 11. A spiral lifting cover 52 is threaded onto the guide flange 51. It should be noted that by driving the spiral lifting cover 52 to rotate on the guide flange 51, the spiral lifting cover 52 can perform a spiral lifting motion. A reciprocating rocker arm 54 with its lower end moving against the spiral lifting cover 52 is rotatably installed in the extension plate 53. A connecting cavity 55 is opened in the extension plate 53, with a driven piston 58 slidably mounted at one end. A driving piston 56 is slidably mounted at the other end of the connecting cavity 55. A lifting frame 57, which is movably pulled by the reciprocating rocker arm 54, is fixedly connected to the driving piston 56. Because the top of the spiral lifting cover 52 has sufficient width, it can continuously apply pressure to the reciprocating rocker arm 54, which performs lever-like motion, thereby driving the driving piston 56 to retract into the connecting cavity 55. Hydraulic oil located between the driving piston 56 and the driven piston 58 can be poured into the connecting cavity 55 to further reduce the vibration effect of the extension and retraction of the driving piston 56 and the driven piston 58.

[0035] The equipment support 1 includes a load-bearing base 11, and four load-bearing support rods 12 are fixedly connected to the top of the load-bearing base 11. A load-bearing top plate 13 is fixedly installed on the four load-bearing support rods 12 to form a stable frame structure that supports the lower mold 2 and the upper mold 3.

[0036] The lower mold 2 is fixedly mounted on the load-bearing base 11, and the upper mold 3 is mounted above the lower mold 2 via the load-bearing support rod 12 and the load-bearing top plate 13.

[0037] The guide flange 51 and the lower mold 2 are concentrically mounted on the load-bearing base 11. The extension plate 53 is a C-shaped structure with an opening in the middle, so as to facilitate the installation of a reciprocating swing rod 54 for lever-type deflection motion.

[0038] The connecting cavity 55 is a U-shaped structure with both ends opening vertically upwards, which allows the driving piston 56 and the driven piston 58 to move linearly back and forth in the vertical direction.

[0039] A traction hole 541 is provided at the upper end of the reciprocating swing rod 54. A traction bolt 571 is integrally connected to the lifting frame 57 and is slidably fitted in the traction hole 541. The reciprocating swing rod 54 is used to drive the driving piston 56 in both directions.

[0040] It should be noted that the specific model and specifications of the drive cylinder 42 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0041] The functional principle of this utility model can be explained through the following operation methods:

[0042] The upper mold 3 is driven by the drive cylinder 42 to move vertically downward along the right-angle guide rod 41 until it contacts and connects with the lower mold 2. After molding, the mold separation mechanism 5 is controlled to run.

[0043] Twist the spiral lifting cover 52 upward to apply pressure to the reciprocating swing rod 54, causing the reciprocating swing rod 54 to deflect and pull the lifting frame 57, driving the piston 56 to contract into the connecting cavity 55, thereby applying pressure to the driven piston 58 and supporting the upper mold 3 to move upward at a uniform speed.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnetic core forming die comprising an apparatus holder (1) for placing a lower die (2) and an upper die (3), the upper die (3) being provided with a middle die extending into the lower die (2), characterized in that, The tool support (1) is provided with a traction mechanism (4) for driving the upper mold (3) toward the lower mold (2). An extension plate (53) is integrally connected to the outer wall of the lower mold (2). A driven piston (58) is fixedly connected to the upper mold (3) and movably connected to the extension plate (53). The tool support (1) is provided with a mold separation mechanism (5) through the extension plate (53) and the driven piston (58) for separating the lower mold (2) and the upper mold (3) by rotating the spiral lifting cover (52) after the upper mold is driven to the lower mold by the traction mechanism (4) to complete the molding.

2. A core-forming die according to claim 1, wherein The appliance support (1) includes a load-bearing base (11), and four load-bearing support rods (12) are fixedly connected to the top of the load-bearing base (11). A load-bearing top plate (13) is fixedly installed on the four load-bearing support rods (12).

3. A core-forming die according to claim 2, wherein The lower mold (2) is fixedly mounted on the load-bearing base (11), and the upper mold (3) is mounted above the lower mold (2) via the load-bearing support rod (12) and the load-bearing top plate (13).

4. A core-forming die according to claim 3, wherein The traction mechanism (4) includes a right-angle guide rod (41) integrally connected to the load-bearing support rod (12) and slidably fitted in the upper mold (3), and a drive cylinder (42) fixedly connected to the upper mold (3) is fixedly installed on the load-bearing top plate (13).

5. A core-forming die according to claim 4, wherein The mold-separating mechanism (5) includes a guide flange (51) integrally connected to the load-bearing base (11), a spiral lifting cover (52) threadedly connected to the guide flange (51), and a reciprocating rocker arm (54) with its lower end moving to abut against the spiral lifting cover (52) rotatably installed in the extension plate (53); a connecting cavity (55) with a driven piston (58) slidingly fitted at one end is opened in the extension plate (53), a driving piston (56) slidingly fitted at the other end of the connecting cavity (55), and a lifting frame (57) movably pulled by the reciprocating rocker arm (54) is fixedly connected to the driving piston (56).

6. A core-forming die according to claim 5, wherein The guide flange (51) and the lower mold (2) are concentrically arranged on the load-bearing base (11), and the extension plate (53) is a c-shaped structure with an opening in the middle.

7. A magnetic core forming mold according to claim 6, characterized in that, The connecting cavity (55) is a U-shaped structure with both ends opening vertically upwards.

8. A magnetic core forming mold according to claim 7, characterized in that, The reciprocating swing arm (54) has a traction hole (541) at its upper end, and the lifting frame (57) is integrally connected with a traction bolt (571) that is slidably fitted into the traction hole (541).

9. A magnetic core forming mold according to claim 8, characterized in that, The mold separating mechanism (5) drives the upper mold (3) to the lower mold (2) after the traction mechanism (4) forms the magnetic core, and then drives the lower mold (2) and the upper mold (3) to separate smoothly through the screw lifting cover (52).

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