Forming device and process for magnetic core preparation

Abstract

The invention relates to the technical field of magnetic core forming devices, and discloses a forming device and process for magnetic core preparation, and the forming device comprises a shell, the inner side of which is sequentially provided with a main mold and a bottom mold block in an attached manner from top to bottom; and sliding blocks fixedly installed on the two sides of the main mold are embedded in the inner side of the shell in a sliding mode, an upper vibration structure used for vibrating and pushing materials is embedded in the inner side of the top of the main mold, and two-way transmission mechanisms used for driving the vibration structure to operate are embedded in the two sides of the main mold in a sliding mode. According to the forming device and technology for magnetic core preparation, the device adopts an extrusion block structure with pre-buried powder, the extrusion block is isolated from external air through the powder so that air can be prevented from entering powder gaps in the extrusion process, vibration exhaust structures are arranged on the upper side and the lower side of the forming cavity of the device correspondingly, gas in the powder can be effectively reduced, and the production efficiency is improved. The structural strength of the formed magnetic core is improved, and meanwhile, the upper vibration structure also has an auxiliary material pushing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic core forming devices, and specifically to a forming device and process for preparing magnetic cores. Background Art

[0002] During the production process of magnetic cores, it is necessary to extrude and form the powder through a forming device, and then sinter the magnetic core at a high temperature through a sintering device to further enhance the structural strength of the magnetic core. After that, post-treatment operations such as polishing can be carried out. However, there are still some problems with the existing magnetic core forming devices: For the magnetic core forming devices on the market, during their use, it is difficult to effectively remove the gas in the gaps between the powders. After the device extrudes and forms, there is a risk of defects at the corners of the magnetic core. At the same time, the residual gas inside the magnetic core may also cause cracks in the internal structure, resulting in a low structural strength of the magnetic core after subsequent sintering.

[0003] In view of the above problems, there is an urgent need to innovate and design on the basis of the original magnetic core forming device. Summary of the Invention

[0004] The purpose of the present invention is to provide a forming device and process for preparing magnetic cores to solve the following problems existing in the existing magnetic core forming devices in the above background art: during the use of the device, it is difficult to effectively remove the gas in the gaps between the powders. After the device extrudes and forms, there is a risk of defects at the corners of the magnetic core. At the same time, the residual gas inside the magnetic core may also cause cracks in the internal structure, resulting in a low structural strength of the magnetic core after subsequent sintering.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A forming device for preparing magnetic cores, comprising: A housing, inside which a main mold and a bottom module are sequentially and fittingly installed from top to bottom; further comprising: sliders fixedly installed on both sides of the main mold are slidably embedded inside the housing. An upper vibration structure for vibration and material pushing is embedded inside the top of the main mold. A bidirectional transmission mechanism for driving the operation of the vibration structure is slidably embedded on both sides of the main mold. And the bidirectional transmission mechanism includes a driving toothed plate, the upper end of the driving toothed plate is fixedly connected with a force-bearing plate, and the convex shaft at the end of the force-bearing plate is slidably embedded in a guiding groove opened on the inner wall of the housing: a convex block at the top of the bottom module is fittingly embedded at the bottom of the main mold, and a wave vibration module for vibrating the bottom of the main mold is installed inside the bottom module.

[0006] Preferably, a thrust electric cylinder is horizontally and fixedly installed through one side of the outer shell. The moving end of the thrust electric cylinder is vertically and fixedly installed on the side wall of the main mold. A support frame is fixedly installed at the bottom of the main mold. A lifting electric cylinder is fixedly installed through the bottom of the support frame. The moving end of the lifting electric cylinder is vertically and fixedly connected to the center of the bottom of the bottom module. A contact plate for pushing out the magnetic core product is fixedly installed on the inner wall of the side of the outer shell away from the thrust electric cylinder, and the contact plate is below the plane where the bottom surface of the main mold is located, so that the lifting electric cylinder can drive the bottom module to move.

[0007] Preferably, a feed hopper is fixedly installed on the top bracket of the main mold. The lower port of the feed hopper faces the top opening of the main mold vertically. A forming cavity is formed through the lower part of the main mold. The bottom module is fitted and embedded at the bottom of the forming cavity. A horizontal extrusion block is arranged directly above the forming cavity, so that the bottom module can move at the bottom of the forming cavity.

[0008] Preferably, the cross-section of the extrusion block is the same as that of the forming cavity. The extrusion block is arranged away from the inner wall of the main mold and is in the middle of the main mold. The bottom surface of the extrusion block faces the top of the forming cavity. Symmetrically distributed guide frames are fixedly connected to both sides of the extrusion block. The top of the guide frame vertically slides through the guide rod at the top of the main mold. The top of the side of the guide frame away from the extrusion block is fixedly connected to the moving end of a pressure electric cylinder, and the pressure electric cylinder is fixedly installed through the side wall of the main mold, so that the guide frame can drive the extrusion block to move.

[0009] Preferably, the driving toothed plate slides through the bottom of the main mold. The axis of the force-bearing plate is perpendicular to the axis of the driving toothed plate. The side of the guiding groove close to the convex shaft of the force-bearing plate is in a wavy structure, and the other side of the guiding groove is horizontally arranged. The convex shaft of the force-bearing plate slides through the vertical groove opened on the side wall of the main mold. A moving block is fixedly connected to the side of the force-bearing plate away from the driving toothed plate. Both the moving block and the force-bearing plate are slidably installed on the side wall of the main mold. The end of the moving block is rotatably connected to the upper end of the rotating arm, and the lower end of the rotating arm is rotatably connected to the end of the loading plate. The loading plate is slidably embedded in the main mold, so that the guiding groove can drive the driving toothed plate and the moving block to move synchronously through the force-bearing plate.

[0010] Preferably, the upper vibration structure includes two horizontally arranged cross bars. The outer walls of the cross bars are slidably attached to the inner wall of the main mold. The cross bars are horizontally arranged on the side of the forming cavity. One end of the cross bar is fixedly connected to the outer wall of the loading plate, and a positive pushing block is fixedly installed at the other end of the cross bar. The positive pushing block faces the forming cavity, so that the loading plate can drive the cross bars to move synchronously.

[0011] Preferably, side plate frames are symmetrically arranged on both sides of the cross bar. Guide rails are slidably and penetratively installed at the bottoms of both sides of the side plate frames, and the guide rails are arranged parallel to each other. The bottom surface of the guide rail is fixedly connected to the inner wall of the main mold. Symmetrically distributed traction plates are fixedly connected to the middle of the cross bar. The inclination directions of the traction plates and the guide rails are opposite, and the traction plates are slidably inserted into the middle of the side walls of the side plate frames. The cross section of the traction plate is a rectangular structure, so that the traction plate can drive the side plate frame to move.

[0012] Preferably, the wave vibration module includes a rotating rod rotatably penetrating through the middle of the bottom module. A transmission gear is coaxially fixedly connected to the end of the rotating rod, and the transmission gear is attached to the outer wall of the bottom module. A driving toothed plate tooth is meshed on the side of the transmission gear. The bumps on both sides of the bottom module are slidably embedded in the side walls of the support frame. Five cam members are fixedly installed on the rod body of the rotating rod, and the distal points of the cam members are all at different positions, so that the rotating rod can drive the cam members to rotate.

[0013] Preferably, the wave vibration module further includes an outer frame slidably embedded in the inner wall of the bottom module. Corresponding cam members are arranged inside the outer frame to form a transmission structure. The inner side of the outer frame is a rectangular structure. An impact plate is slidably embedded at the top of the outer frame. The upper surface of the impact plate faces the top of the inner wall of the bottom module. Symmetrically distributed limiting rods are fixedly installed on the bottom surface of the impact plate. The lower ends of the limiting rods are slidably inserted into the through holes at the bottom of the outer frame, and a return spring is sleeved on the outer side of the limiting rod. The return spring is fixedly connected between the bottom surface of the impact plate and the inner wall of the outer frame, so that the cam member can drive the outer frame to move.

[0014] The processing technology of the core preparation forming device includes the following steps: S1: The external feeding device feeds the core powder into the top of the main mold through the feed hopper. The powder covers the extrusion block to achieve gas isolation, so as to prevent gas from being sent into the powder gap during the extrusion process of the extrusion block. S2: The thrust electric cylinder first drives the main mold to move reciprocally. The main mold will drive the slider to move synchronously on the outer shell. The main mold will drive the force receiving plate to move synchronously. At this time, the guiding groove on the outer shell will drive the driving toothed plate and the moving block to move synchronously through the convex shaft on the force receiving plate. The driving toothed plate will drive the transmission gear to rotate, and the moving block will drive the loading plate to move reciprocally through the rotating arm. S3: The transmission gear drives the five cam members to rotate through the rotating rod. Since the distal end points of the cam members are located at different positions, the cam members will push the corresponding outer frames in sequence, so that the impact plates on the top of the outer frames will impact the bottom module in sequence to generate continuous vibration. When the impact plates are compressed, they will drive the limit rod to move downward, and at the same time, the impact plates will compress the reset spring. When the impact plates are away from the inner wall of the bottom module, the reset spring will push the impact plates to reset, and the continuous vibration of the bottom module will reduce the gas in the powder in the main mold; S4: The reciprocating loading plate will drive the cross bar to move synchronously, the traction plates installed on both sides of the cross bar will move synchronously, and the positive push blocks at the ends of the cross bar will follow the movement. Since the traction plate slides and is obliquely inserted on the side plate frame, the traction plate will drive the side plate frame to slide along the fixed guide rail, and the cross bar and the side plate frame will be used to vibrate and exhaust the powder in the main mold. At the same time, the moving positive push blocks and side plate frames can accelerate the powder to enter the molding cavity. After the powder exhaust operation is completed, the pressure electric cylinder will drive the guide frame and the extrusion block to move downward. At this time, the extrusion block will move into the molding cavity for extrusion molding to complete the molding of the magnetic core. Then the thrust electric cylinder pushes the main mold to the farthest point. During this process, the lifting electric cylinder can perform auxiliary operations. After that, the lifting electric cylinder will drive the bottom module to move downward, so that the magnetic core product in the molding cavity can be moved out. At the same time, the horizontally moving main mold will drive the magnetic core on the bottom module to move toward the contact plate, so that the contact plate can push out the processed magnetic core.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the forming device and process for preparing the magnetic core adopts an extrusion block structure in which powder is pre-embedded, and the extrusion block is isolated from the outside air by powder to prevent air from entering the powder gap during the extrusion process, and the upper and lower sides of the forming cavity of the device are provided with a vibration exhaust structure, which can effectively reduce the gas in the powder and improve the strength of the magnetic core structure after forming. At the same time, the upper vibration structure also has an auxiliary pushing effect, and its specific contents are as follows: 1. The extrusion block is arranged away from the inner wall of the main mold. The extrusion block is in the middle of the main mold, and the bottom surface of the extrusion block is arranged toward the top of the molding cavity. The two sides of the extrusion block are fixedly connected with symmetrically distributed guide frames. The top of the guide frame vertically slides through the guide rod on the top of the main mold. When the main mold is full of powder, the powder will cover the extrusion block to form air isolation. The pressure electric cylinder can drive the extrusion block to move through the guide frame, so that the extrusion block can perform extrusion molding operation in an environment isolated from air, thereby reducing the gas in the powder; 2. An upper vibration structure for vibration and material pushing is embedded in the inner side of the top of the main mold. A bidirectional transmission mechanism for driving the operation of the vibration structure is slidably embedded on both sides of the main mold. A wave vibration module for vibrating the bottom of the main mold is installed inside the bottom module. The upper vibration structure and the wave vibration module are driven to operate synchronously by the bidirectional transmission mechanism. At this time, the cross bar in the upper vibration structure drives the side plate frame to move obliquely back and forth through the traction plate. The cross bar and the traction plate vibrate the powder material in the upper part of the forming cavity. At the same time, the cross bar and the traction plate push the powder material into the forming cavity. The wave vibration module operates in the bottom module, causing the bottom of the forming cavity of the main mold to vibrate synchronously to quickly exhaust air. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall external structure of the present invention; Figure 2 Schematic diagram of the installation structure of the main mold of the present invention; Figure 3 Schematic diagram of the installation structure of the force-bearing plate of the present invention; Figure 4 Schematic diagram of the installation structure of the support frame of the present invention; Figure 5 Schematic diagram of the installation structure of the extrusion block of the present invention; Figure 6 Schematic diagram of the installation structure of the driving tooth plate of the present invention; Figure 7 Schematic diagram of the installation structure of the bottom module of the present invention; Figure 8 Schematic diagram of the installation structure of the transmission gear of the present invention; Figure 9 Schematic diagram of the installation structure of the outer frame of the present invention; Figure 10 Schematic diagram of the installation structure of the cam member of the present invention; Figure 11 Schematic diagram of the installation structure of the impact plate of the present invention; Figure 12 Schematic diagram of the installation structure of the moving block of the present invention; Figure 13 Schematic diagram of the installation structure of the rotating arm of the present invention; Figure 14 Schematic diagram of the installation structure of the cross bar of the present invention; Figure 15 Schematic diagram of the installation structure of the traction plate of the present invention.

[0017] In the figure: 1. shell; 2. thrust electric cylinder; 3. main mold; 4. slider; 5. contact plate; 6. support frame; 7. lifting electric cylinder; 8. bottom module; 9. feed hopper; 10. pressure electric cylinder; 11. guide frame; 12. extrusion block; 13. two-way transmission mechanism; 1301. driving gear plate; 1302. force plate; 1303. moving block; 14. guide groove; 15. rotating arm; 16. loading plate; 17. upper vibration structure; 1701. cross bar; 1702. traction plate; 1703. side plate frame; 1704. guide rail; 1705. forward push block; 18. molding cavity; 19. transmission gear; 20. rotating rod; 21. cam member; 22. outer frame; 23. impact plate; 24. limit rod; 25. reset spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 - 15 The present invention provides a technical solution: a forming device for preparing a magnetic core, comprising: The outer shell 1 has a main mold 3 and a bottom module 8 fitted and installed in sequence on its inner side from top to bottom; it also includes: sliders 4 fixedly installed on both sides of the main mold 3 are slidably embedded in the inner side of the outer shell 1, an upper vibration structure 17 for vibration and pushing is embedded on the inner side of the top of the main mold 3, and a two-way transmission mechanism 13 for driving the vibration structure to operate is slidably embedded on both sides of the main mold 3, and the two-way transmission mechanism 13 includes a driving tooth plate 1301, the upper end of the driving tooth plate 1301 is fixedly connected to a force plate 1302, and the end convex shaft of the force plate 1302 is slidably embedded in a guide groove 14 opened on the inner wall of the outer shell 1: the top convex block of the bottom module 8 is fitted and embedded in the bottom of the main mold 3, and a wave vibration module for vibrating the bottom of the main mold 3 is installed inside the bottom module 8.

[0020] A feed hopper 9 is fixedly installed on the top bracket of the main mold 3. The lower port of the feed hopper 9 vertically faces the top opening of the main mold 3. A forming cavity 18 is formed through the lower part of the main mold 3. A bottom module 8 is fitted and embedded at the bottom of the forming cavity 18. A horizontal extrusion block 12 is arranged directly above the forming cavity 18. External powder can enter the top opening of the main mold 3 through the feed hopper 9. Since the cross-section of the extrusion block 12 is the same as that of the forming cavity 18, the extrusion block 12 is arranged away from the inner wall of the main mold 3. The extrusion block 12 is located in the middle of the main mold 3. The bottom surface of the extrusion block 12 faces the top of the forming cavity 18. Symmetrically distributed guide frames 11 are fixedly connected to both sides of the extrusion block 12. The top of the guide frame 11 vertically slides through a guide rod at the top of the main mold 3. The top of the side of the guide frame 11 away from the extrusion block 12 is fixedly connected to the moving end of a pressure electric cylinder 10. The pressure electric cylinder 10 is fixedly installed through the side wall of the main mold 3, so that the pressure electric cylinder 10 can push the extrusion block 12 to move through the guide frame 11. At this time, the extrusion block 12 will perform an extrusion molding operation on the powder in the forming cavity 18.

[0021] On one side of the outer shell 1, a thrust electric cylinder 2 is horizontally and fixedly installed through. The moving end of the thrust electric cylinder 2 is vertically and fixedly installed on the side wall of the main mold 3. And a support frame 6 is fixedly installed at the bottom of the main mold 3. A lifting electric cylinder 7 is fixedly installed through the bottom of the support frame 6. And the moving end of the lifting electric cylinder 7 is vertically and fixedly connected to the center of the bottom of the bottom module 8. On the inner wall of the side of the outer shell 1 away from the thrust electric cylinder 2, a resisting plate 5 for pushing out the magnetic core product is fixedly installed. And the resisting plate 5 is below the plane where the bottom surface of the main mold 3 is located. When the thrust electric cylinder 2 pushes the main mold 3 to move, the main mold 3 will slide along the inner wall of the outer shell 1. Since the driving tooth plate 1301 slides through the bottom of the main mold 3, the axis of the force receiving plate 1302 and the axis of the driving tooth plate 1301 are perpendicularly arranged. One side of the guiding groove 14 close to the convex shaft on the force receiving plate 1302 is in a wavy structure, and the other side of the guiding groove 14 is horizontally arranged. The convex shaft of the force receiving plate 1302 is slidably installed through a vertical groove opened on the side wall of the main mold 3. On the side of the force receiving plate 1302 away from the driving tooth plate 1301, a moving block 1303 is fixedly connected. And both the moving block 1303 and the force receiving plate 1302 are slidably installed on the side wall of the main mold 3. The end of the moving block 1303 is rotatably connected to the upper end of the rotating arm 15. And the lower end of the rotating arm 15 is rotatably connected to the end of the loading plate 16. The loading plate 16 is slidably embedded in the main mold 3. At this time, the main mold 3 will drive the force receiving plate 1302 to move synchronously. And the guiding groove 14 will drive the force receiving plate 1302 to reciprocate synchronously. The force receiving plate 1302 will drive the driving tooth plate 1301 and the moving block 1303 to move synchronously. At this time, the moving block 1303 will drive the rotating arm 15 to move. And the rotating arm 15 will drive the loading plate 16 to reciprocate. Since the upper vibration structure 17 includes two horizontally arranged cross bars 1701, the outer wall of the cross bar 1701 is slidably attached to the inner wall of the main mold 3. And the cross bar 1701 is horizontally arranged on the side of the forming cavity 18. One end of the cross bar 1701 is fixedly connected to the outer wall of the loading plate 16. And a positive pushing block 1705 is fixedly installed at the other end of the cross bar 1701. The positive pushing block 1705 faces the forming cavity 18. At this time, the loading plate 16 will drive the cross bar 1701 to reciprocate synchronously. Since on both sides of the cross bar 1701, there are symmetrically distributed side plate frames 1703. On both sides of the bottom of the side plate frame 1703, guide rails 1704 are slidably installed through. And the guide rails 1704 are arranged in parallel. And the bottom surface of the guide rail 1704 is fixedly connected to the inner wall of the main mold 3. In the middle of the cross bar 1701, symmetrically distributed traction plates 1702 are fixedly connected. The inclination direction of the traction plate 1702 is opposite to that of the guide rail 1704. And the traction plate 1702 is slidably inserted into the middle of the side wall of the side plate frame 1703. The cross section of the traction plate 1702 is in a rectangular structure. At this time, the cross bar 1701 will drive the side plate frame 1703 to move on the guide rail 1704 through the traction plate 1702.

[0022] The wave vibration module includes a rotating rod 20 rotatably penetrating through the middle of the bottom module 8. A transmission gear 19 is coaxially and fixedly connected to the end of the rotating rod 20, and the transmission gear 19 is attached to the outer wall of the bottom module 8. Tooth teeth of a driving tooth plate 1301 are meshed on the side of the transmission gear 19. The bumps on both sides of the bottom module 8 are slidably embedded in the side walls of the support frame 6. Five cam members 21 are fixedly installed on the rod body of the rotating rod 20, and the distal points of the cam members 21 are all at different positions, so that the driving tooth plate 1301 can drive the rotating rod 20 to rotate through the transmission gear 19, and the rotating rod 20 will drive the cam members 21 to rotate synchronously. Since the wave vibration module further includes an outer frame 22 slidably embedded in the inner wall of the bottom module 8, corresponding cam members 21 are arranged on the inner sides of the outer frame 22 to form a transmission structure, and the inner side of the outer frame 22 is in a rectangular structure. An impact plate 23 is slidably embedded at the top of the outer frame 22. The upper surface of the impact plate 23 faces the top of the inner wall of the bottom module 8. Symmetrically distributed limiting rods 24 are fixedly installed on the bottom surface of the impact plate 23. The lower ends of the limiting rods 24 are slidably inserted into the through holes at the bottom of the outer frame 22, and a return spring 25 is sleeved on the outer side of the limiting rods 24. The return spring 25 is fixedly connected between the bottom surface of the impact plate 23 and the inner wall of the outer frame 22. At this time, the cam members 21 will drive the outer frame 22 to move synchronously. At this time, the impact plate 23 at the top of the outer frame 22 will collide with the inner wall of the bottom module 8.

[0023] The processing technology of the molding device for magnetic core preparation includes the following steps: S1: The external feeding device feeds the magnetic core powder into the top of the main mold 3 through the feed hopper 9. The powder covers the extrusion block 12 to achieve gas isolation, so as to prevent gas from being sent into the powder gap during the extrusion process of the extrusion block 12. S2: The thrust electric cylinder 2 first drives the main mold 3 to reciprocate. The main mold 3 will drive the slider 4 to move synchronously on the housing 1. The main mold 3 will drive the force receiving plate 1302 to move synchronously. At this time, the guiding groove 14 on the housing 1 will drive the driving tooth plate 1301 and the moving block 1303 to move synchronously through the convex shaft on the force receiving plate 1302. The driving tooth plate 1301 will drive the transmission gear 19 to rotate, and the moving block 1303 will drive the loading plate 16 to reciprocate through the rotating arm 15. S3: The transmission gear 19 drives the five cam members 21 to rotate through the rotating rod 20. Since the positions of the distal points of the cam members 21 are different, the cam members 21 will sequentially push the corresponding outer frames 22, so that the impact plates 23 at the tops of the outer frames 22 will sequentially impact the bottom module 8 to generate continuous vibration. When the impact plate 23 is pressed, it will drive the limiting rod 24 to move downward. At the same time, the impact plate 23 will compress the return spring 25. When the impact plate 23 moves away from the inner wall of the bottom module 8, the return spring 25 will push the impact plate 23 to reset, and the continuous vibration of the bottom module 8 will reduce the gas in the powder in the main mold 3. S4: The reciprocating loading plate 16 will drive the cross bar 1701 to move synchronously, and the traction plates 1702 installed on both sides of the cross bar 1701 will move synchronously, and the positive push block 1705 at the end of the cross bar 1701 will follow the movement. Since the traction plate 1702 slides and obliquely inserts on the side plate frame 1703, the traction plate 1702 will drive the side plate frame 1703 to slide along the fixed guide rail 1704. The cross bar 1701 and the side plate frame 1703 are used to vibrate and exhaust the powder in the main mold 3. At the same time, the moving positive push block 1705 and the side plate frame 1703 can speed up the powder to enter the molding cavity 18 In the process, when the powder exhaust operation is completed, the pressure electric cylinder 10 will drive the guide frame 11 and the extrusion block 12 to move downward. At this time, the extrusion block 12 will move into the molding cavity 18 to perform the extrusion molding operation to complete the molding of the magnetic core. Then the thrust electric cylinder 2 pushes the main mold 3 to the farthest point. During this process, the lifting electric cylinder 7 can perform auxiliary operations. After that, the lifting electric cylinder 7 will drive the bottom module 8 to move downward, so that the magnetic core product in the molding cavity 18 can be moved out. At the same time, the horizontally moving main mold 3 will drive the magnetic core on the bottom module 8 to move toward the contact plate 5, so that the contact plate 5 can push out the processed magnetic core.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forming device for preparing a magnetic core, comprising: A shell (1) has a main mold (3) and a bottom module (8) fitted and installed in sequence from top to bottom on its inner side; the invention is characterized in that it also includes: sliders (4) fixedly installed on both sides of the main mold (3) are slidably embedded in the inner side of the shell (1); an upper vibration structure (17) for vibrating and pushing is embedded on the inner side of the top of the main mold (3); a two-way transmission mechanism (13) for driving the vibration structure to operate is slidably embedded on both sides of the main mold (3); and the two-way transmission mechanism (13) includes a driving tooth plate (1301); the upper end of the driving tooth plate (1301) is fixedly connected to a force-bearing plate (1302); and the end convex shaft of the force-bearing plate (1302) is slidably embedded in a guide groove (14) provided on the inner wall of the shell (1); the top convex block of the bottom module (8) is fitted and embedded in the bottom of the main mold (3); and a wave vibration module for vibrating the bottom of the main mold (3) is installed inside the bottom module (8).

2. A forming device for preparing a magnetic core according to claim 1, characterized in that: A thrust electric cylinder (2) is fixedly installed horizontally through one side of the shell (1), the movable end of the thrust electric cylinder (2) is fixedly installed vertically on the side wall of the main mold (3), and a support frame (6) is fixedly installed at the bottom of the main mold (3), a lifting electric cylinder (7) is fixedly installed through the bottom of the support frame (6), and the movable end of the lifting electric cylinder (7) is vertically fixedly connected to the bottom center of the bottom module (8), and a resistance plate (5) for pushing out the magnetic core product is fixedly installed on the inner wall of the side of the shell (1) away from the thrust electric cylinder (2), and the resistance plate (5) is below the plane where the bottom surface of the main mold (3) is located.

3. A forming device for preparing a magnetic core according to claim 1, characterized in that: A feed hopper (9) is fixedly mounted on the top bracket of the main mold (3), and the lower port of the feed hopper (9) is vertically opened toward the top of the main mold (3). A molding cavity (18) is provided through the lower part of the main mold (3), a bottom module (8) is fitted and embedded in the bottom of the molding cavity (18), and a horizontal extrusion block (12) is provided directly above the molding cavity (18).

4. A forming device for preparing a magnetic core according to claim 3, characterized in that: The cross section of the extrusion block (12) is the same as the cross section of the molding cavity (18). The extrusion block (12) is arranged away from the inner wall of the main mold (3), and the extrusion block (12) is located in the middle of the main mold (3). The bottom surface of the extrusion block (12) is arranged toward the top of the molding cavity (18). The two sides of the extrusion block (12) are fixedly connected to symmetrically distributed guide frames (11), and the top of the guide frame (11) vertically slides through a guide rod on the top of the main mold (3). The top of the side of the guide frame (11) away from the extrusion block (12) is fixedly connected to the moving end of the pressure electric cylinder (10), and the pressure electric cylinder (10) is fixedly installed on the side wall of the main mold (3).

5. A forming device for preparing a magnetic core according to claim 1, characterized in that: The driving tooth plate (1301) is slidably installed through the bottom of the main mold (3), the axis of the force-bearing plate (1302) and the axis of the driving tooth plate (1301) are arranged perpendicular to each other, the side of the guide groove (14) close to the convex shaft on the force-bearing plate (1302) is in a wavy structure, and the other side of the guide groove (14) is arranged horizontally, and the convex shaft of the force-bearing plate (1302) is slidably installed in the vertical groove opened on the side wall of the main mold (3). A moving block (1303) is fixedly connected to a side of the force-bearing plate (1302) away from the driving tooth plate (1301), and the moving block (1303) and the force-bearing plate (1302) are both slidably mounted on the side wall of the main mold (3), the end of the moving block (1303) is rotatably connected to the upper end of the rotating arm (15), and the lower end of the rotating arm (15) is rotatably connected to the end of a loading plate (16), and the loading plate (16) is slidably embedded in the interior of the main mold (3).

6. A forming device for preparing a magnetic core according to claim 1, characterized in that: The upper vibration structure (17) comprises two horizontally arranged cross bars (1701), the outer walls of the cross bars (1701) are slidably fitted on the inner walls of the main mold (3), and the cross bars (1701) are horizontally arranged on the sides of the molding cavity (18), one end of the cross bars (1701) is fixedly connected to the outer wall of the loading plate (16), and the other end of the cross bars (1701) is fixedly mounted with a positive push block (1705), and the positive push block (1705) is arranged toward the molding cavity (18).

7. A forming device for preparing a magnetic core according to claim 6, characterized in that: Both sides of the cross bar (1701) are provided with symmetrically distributed side plate frames (1703), and guide rails (1704) are slidably installed on the bottoms of both sides of the side plate frames (1703), and the guide rails (1704) are arranged parallel to each other, and the bottom surfaces of the guide rails (1704) are fixedly connected to the inner wall of the main mold (3), and the middle part of the cross bar (1701) is fixedly connected with a symmetrically distributed pulling plate (1702), and the inclination directions of the pulling plate (1702) and the guide rail (1704) are opposite, and the pulling plate (1702) is slidably inserted in the middle part of the side wall of the side plate frame (1703), and the cross section of the pulling plate (1702) is a rectangular structure.

8. A forming device for preparing a magnetic core according to claim 1, characterized in that: The wave vibration module comprises a rotating rod (20) which is rotatably arranged through the middle of the bottom module (8), the end of the rotating rod (20) is coaxially fixedly connected with a transmission gear (19), and the transmission gear (19) is fitted on the outer wall of the bottom module (8), and the side of the transmission gear (19) is meshed with teeth of a driving toothed plate (1301), the protrusions on both sides of the bottom module (8) are slidably embedded in the side walls of the support frame (6), and five cam members (21) are fixedly mounted on the rod body of the rotating rod (20), and the distal ends of the cam members (21) are all at different positions.

9. A forming device for preparing a magnetic core according to claim 8, characterized in that: The wave vibration module also includes an outer frame (22) slidably embedded on the inner wall of the bottom module (8), the inner side of the outer frame (22) is provided with a corresponding cam member (21) to form a transmission structure, and the inner side of the outer frame (22) is in a rectangular structure, and an impact plate (23) is slidably embedded on the top of the outer frame (22), the upper surface of the impact plate (23) is arranged toward the top of the inner wall of the bottom module (8), and symmetrically distributed limiting rods (24) are fixedly installed on the bottom surface of the impact plate (23), the lower end of the limiting rod (24) is slidably inserted into a through hole at the bottom of the outer frame (22), and the outer side of the limiting rod (24) is sleeved with a return spring (25), and the return spring (25) is fixedly connected between the bottom surface of the impact plate (23) and the inner wall of the outer frame (22).

10. A processing technology of a forming device for preparing a magnetic core, using a forming device for preparing a magnetic core as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1: The external feeding equipment feeds the magnetic core powder into the top of the main mold (3) through the feeding hopper (9), and the powder covers the extrusion block (12) to achieve gas isolation, so as to prevent the extrusion block (12) from feeding gas into the powder gap during the extrusion process; S2: The thrust electric cylinder (2) first drives the main mold (3) to move back and forth. At this time, the guide groove (14) on the housing (1) drives the entire bidirectional transmission mechanism (13) to move back and forth through the convex shaft on the force-bearing plate (1302). The bidirectional transmission mechanism (13) drives the wave vibration module and the rotating arm (15) of the bottom module (8) to operate synchronously; S3: The transmission gear (19) in the wave vibration module drives the five cam members (21) to rotate through the rotating rod (20), and the cam members (21) will push the corresponding outer frames (22) in turn, so that the impact plates (23) on the top of the outer frames (22) impact the bottom module (8) in turn to generate continuous vibration. The vibration of the bottom module (8) will reduce the gas in the powder in the main mold (3); S4: The rotating arm (15) drives the upper vibration structure (17) to operate through the loading plate (16), so that the cross bar (1701) reciprocates, and the cross bar (1701) drives the side plate frame (1703) to move obliquely back and forth through the traction plate (1702). The cross bar (1701) and the side plate frame (1703) are used to vibrate and exhaust the powder in the main mold (3), and then the extrusion block (12) performs extrusion molding.

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