A magnetic core pressing mold

Abstract

The utility model discloses a magnetic core pressing and forming mold, which belongs to the field of magnetic core molds. It comprises a workbench, a mold base is fixed at the center of the upper surface of the workbench, a lower mold groove is evenly opened on the upper surface of the mold base, an installation cavity is horizontally opened on the inner side of the workbench, the installation cavity is placed directly below the mold base, and storage holes are evenly opened on the inner upper surface of the installation cavity, the storage holes correspond one to one with the lower mold groove, a U-shaped rod is slidably installed on the upper inner side of the storage hole, push rods are symmetrically arranged on the top of the U-shaped rod, the upper surface of the push rod is flush with the lower surface of the lower mold groove, a convex ring is opened on the inner wall of the storage hole, the convex ring is placed below the U-shaped rod, and a push rod corresponding to the mold groove is arranged inside the lower mold base. Under normal conditions, the push rod is flush with the lower surface of the mold groove, which will not affect the molding of the magnetic core and ensures that the inner wall of the lower mold groove is flat. When material needs to be taken out after molding, a control handle on the front side can be rotated externally to simultaneously drive multiple push rods to move up.

Description

Technical Field

[0001] The utility model relates to the field of magnetic core molds, and more specifically, to a magnetic core pressing mold. Background Art

[0002] A magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. It is used as a basic functional material for electronic components. Magnetic products of different shapes, structures and functional requirements are usually completed by using molds of different shapes and structures and a pressing method using the mold. However, since the formed magnetic core will remain in the groove of the lower mold after pressing, it is difficult to discharge the magnetic core, which seriously affects production efficiency. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a magnetic core pressing and forming die, which can realize the simultaneous ejection of multiple pressed magnetic cores to facilitate material removal and improve material removal efficiency.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A magnetic core pressing and forming mold comprises a workbench, a mold base is fixed at the center of the upper surface of the workbench, a lower mold groove is evenly opened on the upper surface of the mold base, an installation cavity is horizontally opened on the inner side of the workbench, the installation cavity is placed directly below the mold base, and a receiving hole is evenly opened on the upper surface of the inner part of the installation cavity, the receiving hole corresponds to the lower mold groove one by one, a U-shaped rod is slidably installed on the upper inner side of the receiving hole, a push rod is symmetrically arranged on the top of the U-shaped rod, the upper surface of the push rod is flush with the lower surface of the lower mold groove, a convex ring is opened on the inner wall of the storage hole, the convex ring is placed below the U-shaped rod, a sliding rod is arranged at the bottom of the U-shaped rod, the sliding rod passes through the convex ring, and a limiting protrusion is symmetrically arranged below the outer surface of the sliding rod, and a spring is sleeved on the surface of the sliding rod, the spring is placed on the inner side of the storage hole, the top of the spring is in contact with the lower surface of the convex ring, and the bottom of the spring is in contact with the upper surface of the limiting protrusion.

[0008] Furthermore, an extrusion plate is slidably installed inside the installation cavity, the bottom of the slide rod is arranged in an arc shape, and the bottoms of the plurality of slide rods are in contact with the upper surface of the extrusion plate.

[0009] Furthermore, a control shaft is installed at the front center of the workbench through a bearing, and an eccentric wheel is arranged at the rear end of the control shaft. The eccentric wheel is placed at the bottom of the installation cavity, and the eccentric wheel contacts the lower surface of the extrusion plate.

[0010] Furthermore, a control handle is provided at the front end of the control shaft, and the control handle is placed on the front side of the outside of the workbench.

[0011] Furthermore, a column is vertically fixed on the rear side of the upper surface of the workbench, a suspended plate is arranged on the front side of the column, and a hydraulic mechanism is fixed on the front side of the upper surface of the suspended plate.

[0012] Furthermore, two track rods are provided on both sides of the upper surface of the workbench, and a lifting plate is slidably installed between the two groups of track rods. The lifting plate is placed above the mold base, and upper mold heads are evenly installed on the lower surface of the lifting plate. Multiple upper mold heads correspond to lower mold grooves, and the output end of the hydraulic mechanism is installed on the top of the lifting plate.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the utility model has the following advantages: the utility model provides a magnetic core pressing and forming mold, in which a push rod corresponding to the mold groove is arranged inside the lower mold base. Under normal conditions, the push rod is flush with the lower surface of the mold groove, which will not affect the forming of the magnetic core, and ensures that the inner wall of the lower mold groove is flat. When it is necessary to take the material after forming, the control handle on the front side can be rotated externally to drive multiple push rods to move up at the same time, and the formed magnetic core can be pushed out of the mold groove, which is convenient for the staff to centrally take the material and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the mold base of the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of area A;

[0018] Figure 4 It is a schematic diagram of the installation structure of the U-shaped rod and the sliding rod of the utility model.

[0019] Explanation of the numbers in the figure: 1. Workbench; 2. Column; 3. Suspension plate; 4. Hydraulic mechanism; 5. Track rod; 6. Lifting plate; 601. Upper die head; 7. Die base; 8. Lower die groove; 9. Mounting cavity; 10. Storage hole; 11. Convex ring; 12. U-shaped rod; 13. Push rod; 14. Sliding rod; 15. Spring; 16. Limiting bump; 17. Extrusion plate; 18. Control shaft; 19. Eccentric wheel; 20. Control handle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-Figure 4 As shown, a magnetic core pressing and forming mold comprises a workbench 1, a mold base 7 is fixed at the center of the upper surface of the workbench 1, and lower mold grooves 8 are evenly opened on the upper surface of the mold base 7 to realize the simultaneous molding of multiple magnetic cores. An installation cavity 9 is horizontally opened on the inner side of the workbench 1, and the installation cavity 9 is opened horizontally. The installation cavity 9 is placed directly below the mold base 7, and receiving holes 10 are evenly opened on the upper surface of the inner part of the installation cavity 9. The receiving holes 10 are opened vertically, and the receiving holes 10 correspond to the lower mold grooves 8 one by one. A U-shaped rod 12 is slidably installed on the upper inner side of the receiving hole 10, and a push rod 13 is symmetrically arranged on the top of the U-shaped rod 12. The upper surface of the push rod 13 is flush with the lower surface of the lower mold groove 8 to ensure that the magnetic core will not be affected during the pressing work. To ensure the flatness of the surface of the lower die groove 8, a convex ring 11 is opened on the inner wall of the storage hole 10, and the convex ring 11 is placed below the U-shaped rod 12. A slide bar 14 is set at the bottom of the U-shaped rod 12, and the slide bar 14 passes through the convex ring 11. The slide bar 14 is fixedly connected to the U-shaped rod 12 to achieve synchronous movement. A limiting protrusion 16 is symmetrically arranged below the outer surface of the slide bar 14. A spring 15 is sleeved on the surface of the slide bar 14, and the spring 15 is placed on the inner side of the storage hole 10. The top of the spring 15 contacts the lower surface of the convex ring 11, and the bottom of the spring 15 contacts the upper surface of the limiting protrusion 16. The elastic force of the spring 15 is used to make the slide bar 14 be placed at the bottom of the stroke when not subject to external force, thereby ensuring that the push rod 13 is flush with the lower surface of the lower die groove 8.

[0023] Please refer to Figure 2 and Figure 4 As shown, an extrusion plate 17 is slidably installed inside the installation cavity 9, and the bottom of the slide rod 14 is set in an arc shape. The bottoms of multiple slide rods 14 are in contact with the upper surface of the extrusion plate 17, so that the multiple slide rods 14 can be pushed to move by pushing the extrusion plate 17 at the same time, thereby pushing up the magnetic cores in multiple lower mold grooves 8.

[0024] Please refer to Figure 1 and Figure 2As shown, a control shaft 18 is installed at the front center of the workbench 1 through a bearing, an eccentric wheel 19 is arranged at the rear end of the control shaft 18, the eccentric wheel 19 is placed at the lower part of the installation cavity 9, the eccentric wheel 19 is in contact with the lower surface of the extrusion plate 17, and a control handle 20 is arranged at the front end of the control shaft 18, and the control handle 20 is placed at the front side of the outside of the workbench 1, so that the eccentric wheel 19 can be controlled externally to rotate, and then the extrusion plate 17 can be pushed upward to realize the pushing out of multiple formed magnetic cores.

[0025] Please refer to Figure 1 As shown, a column 2 is vertically fixed on the rear side of the upper surface of the workbench 1, a suspended plate 3 is arranged on the front side of the column 2, a hydraulic mechanism 4 is fixed on the front side of the upper surface of the suspended plate 3, two track rods 5 are arranged on both sides of the upper surface of the workbench 1, a lifting plate 6 is slidably installed between the two sets of track rods 5, the track rods 5 can ensure the stability of the up and down movement of the lifting plate 6, the lifting plate 6 is placed above the die base 7, and upper die heads 601 are evenly installed on the lower surface of the lifting plate 6, and multiple upper die heads 601 correspond to the lower die groove 8. The output end of the hydraulic mechanism 4 is installed on the top of the lifting plate 6, and the vertical movement of the lifting plate 6 is controlled by the hydraulic mechanism 4, and then the extrusion molding work is realized by the cooperation of the upper die head 601 and the lower die groove 8.

[0026] Working principle: The hydraulic mechanism 4 at the top drives the lifting plate 6 to move up and down, and then the upper die head 601 and the lower die groove 8 are closed and separated. The track rods 5 on both sides can ensure that the lifting plate 6 moves up and down to be stable, and the magnetic core powder is placed inside the lower die groove 8. At the same time, due to the existence of the spring 15, the slide bar 14 is placed at the bottom of the stroke. At this time, the upper surface of the push rod 13 is flush with the lower surface of the lower die groove 8, so it will not affect the pressing and forming of the magnetic core. The lifting plate 6 is controlled to move downward, and the upper die head 601 is controlled by the hydraulic mechanism 4 to enter the inner side of the lower die groove 8 to perform The pressing and molding work is carried out, and then the lifting plate 6 is lifted. When discharging the material, the control handle 20 is rotated on the front side to drive the control shaft 18 to rotate, and then the eccentric wheel 19 at the rear end is driven to rotate, and the extrusion plate 17 is pushed up. At this time, multiple slide bars 14 can be pushed up at the same time to drive the U-shaped rod 12 to move up, and the top of the pressed magnetic core is pushed up by the push rod 13 to facilitate the operator to take the material. In the process of pushing the slide bar 14, the spring 15 can be squeezed and stored. Therefore, after releasing the control handle 20, the slide bar 14 can move back to its position to facilitate the next pressing.

[0027] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A magnetic core pressing mold, comprising a workbench (1), characterized in that: A mold base (7) is fixed at the center of the upper surface of the workbench (1), and a lower mold groove (8) is evenly opened on the upper surface of the mold base (7). A mounting cavity (9) is horizontally opened on the inner side of the workbench (1), and the mounting cavity (9) is placed directly below the mold base (7). Receiving holes (10) are evenly opened on the inner upper surface of the mounting cavity (9), and the receiving holes (10) correspond one to one with the lower mold groove (8). A U-shaped rod (12) is slidably installed on the upper inner side of the receiving hole (10), and a push rod (13) is symmetrically arranged on the top of the U-shaped rod (12), and the upper surface of the push rod (13) is symmetrical with the lower surface of the lower mold groove (8). The receiving hole (10) is flush with the surface, the inner wall of the receiving hole (10) is provided with a convex ring (11), the convex ring (11) is placed below the U-shaped rod (12), a sliding rod (14) is provided at the bottom of the U-shaped rod (12), the sliding rod (14) passes through the convex ring (11), and a limiting protrusion (16) is symmetrically provided below the outer surface of the sliding rod (14), a spring (15) is sleeved on the surface of the sliding rod (14), the spring (15) is placed inside the receiving hole (10), the top of the spring (15) is in contact with the lower surface of the convex ring (11), and the bottom of the spring (15) is in contact with the upper surface of the limiting protrusion (16).

2. A magnetic core pressing mold according to claim 1, characterized in that: An extrusion plate (17) is slidably installed inside the installation cavity (9), the bottom of the slide rod (14) is arranged in an arc shape, and the bottoms of the plurality of slide rods (14) are in contact with the upper surface of the extrusion plate (17).

3. A magnetic core pressing mold according to claim 2, characterized in that: A control shaft (18) is installed at the front center of the workbench (1) through a bearing, and an eccentric wheel (19) is arranged at the rear end of the control shaft (18). The eccentric wheel (19) is placed at the lower part of the installation cavity (9), and the eccentric wheel (19) is in contact with the lower surface of the extrusion plate (17).

4. A magnetic core pressing mold according to claim 3, characterized in that: A control handle (20) is provided at the front end of the control shaft (18), and the control handle (20) is placed on the front side of the outside of the workbench (1).

5. The magnetic core pressing mold according to claim 1, characterized in that: A column (2) is vertically fixed on the rear side of the upper surface of the workbench (1), a suspended plate (3) is arranged on the front side of the column (2), and a hydraulic mechanism (4) is fixed on the front side of the upper surface of the suspended plate (3).

6. A magnetic core pressing mold according to claim 5, characterized in that: Two track rods (5) are arranged on both sides of the upper surface of the workbench (1); a lifting plate (6) is slidably installed between the two groups of track rods (5); the lifting plate (6) is placed above the die base (7); upper die heads (601) are evenly installed on the lower surface of the lifting plate (6); a plurality of upper die heads (601) correspond to the lower die grooves (8); and the output end of the hydraulic mechanism (4) is installed on the top of the lifting plate (6).

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