Transformer iron core stamping die

Abstract

The utility model discloses a transformer iron core stamping die, which relates to the technical field of transformer iron core production and comprises a base plate, a mounting mechanism is arranged in the middle of the base plate, a lower die is mounted in the middle of the base plate through the mounting mechanism, and stamping notches are arranged at two ends of the rear side of the lower die. By the adoption of the structure, when the lower die needs to be replaced, the arrow guide plate is adjusted to slide, the inclined face of the arrow guide plate abuts against the arc face of the guide plate to open the guide plate, the sliding frame and the limiting arm are driven to move outwards to be separated from the limiting groove, and the lower die and the sliding plate can be pulled out; the sliding plate is inserted into the sliding groove and then inserted into the lower die, the limiting spring pushes the limiting arm to move inwards, and the limiting arm is inserted into the limiting groove to be clamped after the lower die is installed, so that the lower die can be quickly and adaptively installed and replaced, the adaptability of the device during use is improved, the production and processing requirements of different transformer iron cores can be met, and the device is more flexible and universal.

Description

Technical Field

[0001] This utility model belongs to the field of transformer core production technology, and specifically relates to a transformer core stamping die. Background Technology

[0002] The transformer core is one of the core components of a transformer. It is mainly made of magnetic materials with high permeability, such as silicon steel sheets, which are the most common materials. Its function is to provide a low magnetic resistance path for the alternating magnetic flux in the transformer, allowing the magnetic flux to concentrate and pass through the core. The core can effectively enhance the magnetic field, allowing almost all the magnetic flux generated by the primary winding to pass through the secondary winding, thereby achieving electromagnetic induction and ensuring that electrical energy is efficiently transmitted from the primary side to the secondary side. Structurally, the core is usually made of stacked silicon steel sheets. This is done to reduce eddy current losses in the core, because alternating magnetic flux induces an electromotive force in the core. If the core is a solid piece, it will generate a large eddy current. The stacked structure can increase the resistance of the eddy current path and reduce eddy current losses. Furthermore, the shape and size of the core are designed according to factors such as the transformer's capacity, voltage level, and specific application scenarios. Common shapes include E-type, C-type, and toroidal cores. Different core shapes have different characteristics in terms of magnetic field distribution and space utilization. For example, toroidal cores have less leakage flux and can provide better electromagnetic performance.

[0003] Currently, the production and processing of existing transformer cores typically requires the use of molds for stamping. For example, Chinese patent with publication number "CN217018253U" discloses a transformer core stamping mold. By designing a simple stamping positioning mechanism, stamping mechanism, and unloading mechanism, it can complete automatic stamping processing and flatten the stamped iron sheet, making the iron sheet flatter and eliminating the need for secondary processing, thus saving a lot of manpower and resources. At the same time, by designing a stamping mechanism with a built-in flattening structure, the stamping seat can flatten the iron sheet after the previous stamping while the iron sheet is being stamped, making the finished iron sheet flatter and improving work efficiency.

[0004] While the aforementioned mold forming device does demonstrate convenience during production, in practical applications, we find that transformers typically come in various sizes. If different sizes of transformers need to be produced, different upper and lower mold forming structures are required. However, current equipment often employs an integrated molding design or fixed installation, making it inconvenient to quickly disassemble and replace the upper and lower molds for different transformer sizes. Clearly, this situation presents certain defects and shortcomings in the overall production process. Therefore, we urgently need to improve its design to meet the needs of producing transformers of different sizes, improve production efficiency, reduce production costs, and enhance the flexibility and versatility of the equipment. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a transformer core stamping die to solve the problem of inconvenience in quickly replacing the corresponding upper and lower dies in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A transformer core stamping die includes a base plate, an mounting mechanism in the middle of the base plate, a lower die mounted in the middle of the base plate via the mounting mechanism, stamping slots at both ends of the rear side of the lower die, a support frame fixedly mounted on the rear top of the base plate, a stamping mechanism fixedly connected to the top of the support frame, and a pushing mechanism fixedly connected to the lower rear side of the support frame.

[0008] The pushing mechanism includes a fixed base, which is fixedly connected to the lower back of the support frame. A pushing cylinder is fixedly connected to the middle of the fixed base, and a pushing plate is fixedly connected to the output end of the pushing cylinder through the support frame.

[0009] The mounting mechanism includes a mounting groove and a limiting component. The mounting groove is located in the middle of the substrate. Sliding grooves are provided on both sides of the inside of the mounting groove. A sliding plate is slidably connected inside the sliding groove. The inner side of the sliding plate is fixedly connected to both sides of the lower mold. The limiting component is fixedly connected to the bottom front end of the substrate. The limiting component and the lower mold are engaged.

[0010] As a preferred technical solution, the limiting component includes a limiting block and a guide rail. The guide rail is fixedly connected to the bottom front end of the substrate, and the limiting block is fixedly connected to the bottom front end of the lower mold. Limiting springs are fixedly connected to both ends of the guide rail. A sliding frame is welded to the outer end of the limiting spring. A limiting arm is fixedly connected to the front of the sliding frame. Limiting grooves are formed on both sides of the limiting block, and the end of the limiting arm is inserted into the limiting groove.

[0011] As a preferred technical solution, a side rail is fixedly connected to the bottom center of the guide rail, a movable plate is slidably connected inside the side rail, an arrow guide plate is fixedly connected to the bottom of the movable plate, a guide plate is fixedly connected to the bottom of the slide frame, and the arrow guide plate and the guide plate are connected in a transmission manner.

[0012] As a preferred technical solution, the front end of the arrow guide plate is arranged in an isosceles triangle shape, the inner end of the guide plate is arranged in an arc shape, and the inclined surface of the arrow guide plate and the inner arc surface of the guide plate are fitted and connected.

[0013] As a preferred technical solution, support arms are welded and installed on both sides of the bottom of the substrate. The cross-sectional shape of the support arm is L-shaped, and mounting holes are provided on both the front and rear sides of the outer end of the support arm. The mounting holes are countersunk holes.

[0014] As a preferred technical solution, the stamping mechanism includes a stamping cylinder, which is fixedly installed on the top front side of the support frame. The bottom output end of the stamping cylinder is fixedly connected to an installation component through the support frame. An upper mold is installed on the bottom of the stamping cylinder through the installation component, and a flattening block is fixedly connected to the bottom front end of the upper mold.

[0015] As a preferred technical solution, the mounting assembly includes a frame base, which is fixedly connected to the bottom output end of the stamping cylinder. An mounting plate is slidably connected to the inner side of the frame base. The bottom of the mounting plate is fixedly connected to the top of the upper mold. A hand-tightening screw is threadedly connected to the top front end of the frame base. The end of the hand-tightening screw passes through the frame base and is threadedly connected to the mounting plate.

[0016] In summary, the present invention has the following main advantages:

[0017] First, this device, through the installation mechanism, allows for the adjustment of the arrow guide plate to slide when the lower mold needs to be replaced. The inclined surface of the arrow guide plate abuts against the arc surface of the guide plate, opening the guide plate and causing the sliding frame and the limiting arm to move outward and disengage from the limiting groove. The lower mold and the sliding plate can then be pulled out. When installing the lower mold, the sliding plate is inserted into the sliding groove and then the lower mold is inserted. The limiting spring pushes the limiting arm inward. After the lower mold is installed, the limiting arm is inserted into the limiting groove and locked in place. This design facilitates quick adaptation and installation of the lower mold, improves the adaptability of the device during use, meets the production and processing needs of different transformer cores, and makes the device more flexible and versatile.

[0018] Secondly, this device features a stamping mechanism. During operation, an iron sheet is placed on top of the lower die, and the stamping cylinder is activated to engage the upper and lower dies for stamping and forming. Material is discharged through the stamping groove. After stamping, a pusher cylinder pushes the push plate to discharge the formed material. A flattening block assists in leveling and flattening, improving production quality. Changing the upper die only requires turning the hand screw to pull out the mounting plate, making operation convenient and quick. Therefore, this device facilitates rapid disassembly and replacement of the upper and lower dies, improving adaptability and facilitating the production and processing of different transformer cores. It provides convenience for rapid prototyping and improves overall production efficiency and quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the disassembled structure of this utility model;

[0021] Figure 3 This is a top-view structural diagram of the disassembled state of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0023] Reference numerals: 1. Base plate; 2. Mounting mechanism; 21. Mounting groove; 22. Limiting component; 221. Limiting block; 222. Guide rail; 223. Limiting spring; 224. Sliding frame; 225. Limiting arm; 226. Limiting groove; 227. Side rail; 228. Movable plate; 229. Arrow guide plate; 2210. Guide guide plate; 23. Sliding groove; 24. Slide plate; 3. Lower mold; 4. Stamping slot; 5. Support frame; 6. Stamping mechanism; 61. Stamping cylinder; 62. Mounting component; 621. Frame base; 622. Mounting plate; 623. Hand screw; 63. Upper mold; 64. Flattening block; 7. Pushing mechanism; 71. Fixed base; 72. Pushing cylinder; 73. Pushing plate; 8. Support arm; 9. Mounting hole. Detailed Implementation

[0024] Example

[0025] refer to Figures 1 to 4 The transformer core stamping die of this embodiment includes a base plate 1, an installation mechanism 2 is provided in the middle of the base plate 1, a lower die 3 is installed in the middle of the base plate 1 through the installation mechanism 2, stamping slots 4 are opened at both ends of the rear side of the lower die 3, a support frame 5 is fixedly installed on the rear side of the top of the base plate 1, a stamping mechanism 6 is fixedly connected to the top of the support frame 5, and a pushing mechanism 7 is fixedly connected to the lower rear side of the support frame 5.

[0026] The pushing mechanism 7 includes a fixed seat 71, which is fixedly connected to the lower back of the support frame 5. A pushing cylinder 72 is fixedly connected to the middle of the fixed seat 71, and a pushing plate 73 is fixedly connected to the output end of the pushing cylinder 72 through the support frame 5.

[0027] The mounting mechanism 2 includes a mounting groove 21 and a limiting component 22. The mounting groove 21 is located in the middle of the substrate 1. Sliding grooves 23 are provided on both sides of the interior of the mounting groove 21. A sliding plate 24 is slidably connected inside the sliding groove 23. The inner side of the sliding plate 24 is fixedly connected to both sides of the lower mold 3. The limiting component 22 is fixedly connected to the bottom front end of the substrate 1 and is engaged with the lower mold 3. In the pushing mechanism 7, the fixing seat 71 is connected to the lower end of the back of the support frame 5. The middle part of the fixing seat 71 is connected to the pushing cylinder 72, and the output end of the pushing cylinder 72 passes through. The support frame 5 is connected to the pusher plate 73, which can push the formed material out after stamping. In the installation mechanism 2, the base plate 1 has an installation groove 21 in the middle. There are sliding grooves 23 on both sides inside the installation groove 21. The sliding grooves 23 are slidably connected to the sliding plates 24 on both sides of the lower mold 3, which facilitates the installation and removal of the lower mold 3. The limiting component 22 is fixed at the bottom front end of the base plate 1 and is engaged with the lower mold 3. The whole device is easy to quickly disassemble and replace the upper and lower molds 3, meet the production and processing needs of different transformer cores, improve production efficiency and quality, and enhance the flexibility and versatility of the device.

[0028] refer to Figures 2-4The limiting component 22 includes a limiting block 221 and a guide rail 222. The guide rail 222 is fixedly connected to the bottom front end of the base plate 1, and the limiting block 221 is fixedly connected to the bottom front end of the lower mold 3. Limiting springs 223 are fixedly connected to both ends of the guide rail 222. A sliding frame 224 is welded to the outer end of the limiting spring 223. A limiting arm 225 is fixedly connected to the front of the sliding frame 224. Limiting grooves 226 are formed on both sides of the limiting block 221, and the limiting arm 225... The end of the guide rail 222 is inserted into the limiting groove 226. A side rail 227 is fixedly connected to the bottom middle of the guide rail 222. A movable plate 228 is slidably connected inside the side rail 227. An arrow guide plate 229 is fixedly connected to the bottom of the slide plate 24. A guide plate 2210 is fixedly connected to the bottom of the slide frame 224. The arrow guide plate 229 and the guide plate 2210 are connected by a transmission. The front end of the arrow guide plate 229 is set in an isosceles triangle shape, and the inner end of the guide plate 2210 is set in an arc shape. The arrow guide plate 229 is fitted with the inner arc surface of the guide plate 2210. The guide rail 222 is fixed to the bottom front end of the base plate 1. The limiting block 221 is fixed to the bottom front end of the lower mold 3. The guide rail 222 has limiting springs 223 at both ends that connect to the slide frame 224. The slide frame 224 has limiting arms 225 on the front that can be inserted into the limiting grooves 226 on both sides of the limiting block 221. The guide rail 222 has a side rail 227 in the middle of the bottom. The movable plate 228 in the side rail 227 is connected to the arrow guide plate 229. The head guide plate 229 and the bottom of the sliding frame 224 are connected to the guide plate 2210. The arrow guide plate 229 and the guide plate 2210 are connected by transmission. The front end of the arrow guide plate 229 is set as an isosceles triangle. The inner end of the guide plate 2210 is set as an arc and is attached to the inclined surface of the arrow guide plate 229. This limiting component 22 can realize the quick installation and disassembly of the lower mold 3, meet the production and processing needs of different transformer cores, improve production efficiency and quality, and enhance the flexibility and versatility of the device.

[0029] refer to Figures 1-3 Support arms 8 are welded and installed on both sides of the bottom of the base plate 1. The cross-sectional shape of the support arm 8 is L-shaped. The front and rear sides of the outer end of the support arm 8 are provided with mounting holes 9, which are countersunk holes. The design of the support arm 8 and the mounting holes 9 facilitates the installation and fixation of the entire stamping die, meets different installation requirements, improves the stability and practicality of the device, provides reliable support and fixation for the stamping of transformer cores, and adapts to different production and processing environments.

[0030] refer to Figures 1-3The stamping mechanism 6 includes a stamping cylinder 61, which is fixedly mounted on the top front side of the support frame 5. The bottom output end of the stamping cylinder 61 passes through the support frame 5 and is fixedly connected to a mounting assembly 62. An upper die 63 is mounted on the bottom of the stamping cylinder 61 via the mounting assembly 62. A flattening block 64 is fixedly connected to the bottom front end of the upper die 63. The mounting assembly 62 includes a frame base 621, which is fixedly connected to the bottom output end of the stamping cylinder 61. A mounting plate 622 is slidably connected to the inner side of the frame base 621. The bottom of the mounting plate 622 is fixedly connected to the top of the upper die 63. A hand-tightening screw 623 is threadedly connected to the top front end of the frame base 621. The end of the hand-tightening screw 623 passes through the frame base 621 and is threadedly connected to the mounting plate 622. In this device, the stamping cylinder 61 is fixed to the top front side of the support frame 5, and the bottom output end is connected to the upper mold 63 through the mounting component 62. The bottom front end of the upper mold 63 has a flattening block 64. The frame seat 621 of the mounting component 62 is fixed to the bottom output end of the stamping cylinder 61, and the inner side is slidably connected to the mounting plate 622. The bottom of the mounting plate 622 is fixedly connected to the top of the upper mold 63. The top front end of the frame seat 621 is threadedly connected to the hand-tightening screw 623, and its end passes through the frame seat 621 and the mounting plate 622. This stamping mechanism 6 can realize the quick installation and disassembly of the upper mold 63, meet the production and processing needs of different transformer cores, improve production efficiency and quality, and enhance the flexibility and versatility of the device. The flattening block 64 can assist in flattening during the stamping process and improve the production and processing quality.

[0031] Operating principle and advantages: By setting the installation mechanism 2, when the lower mold 3 needs to be replaced during use, the arrow guide plate 229 at the bottom of the push guide rail 222 can be adjusted to slide. At this time, the arrow guide plate 229 will move towards the guide plate 2210 through the sliding of the movable plate 228. The two inclined surfaces at the end of the arrow guide plate 229 can forcefully abut against the arc surface of the guide plate 2210. Under this abutment, the pressure of the arrow guide plate 229 can successfully open the guide plate 2210. Once the guide plate 2210 is opened, it will drive the two sliding frames 224 to move to both sides. The outward movement of the sliding frames 224 will push the limiting arm 225 outward. When the limiting arm 225 moves outward, it will disengage from the limiting groove 226. Under these circumstances, the lower mold 3 can be easily pulled out. When the lower mold 3 is pulled out, it will cause the sliding plate 24 inside the sliding groove 23 in the mounting groove 21 to be pulled out, thereby assisting in quickly pulling the lower mold 3 out of the mounting groove 21. If the lower mold 3 needs to be installed, the sliding plates 24 on both sides of the lower mold 3 can be inserted into the sliding groove 23. Then, the lower mold 3 is inserted into the inner side of the mounting groove 21. At this time, through the reset action of the limit spring 223, the limit arm 225 can be pushed inward. After the lower mold 3 is fully inserted and installed, the limit arm 225 will contact the limit groove 226 of the limit block 221. The limit arm 225 is inserted into the limit groove 226, which can assist in quickly snapping and installing the lower mold 3. This design makes the device easy to quickly adapt and replace the lower mold 3, greatly improving the adaptability of the device during use.

[0032] By setting up the stamping mechanism 6, during the use of this device, the iron sheet to be formed can be placed on the top of the lower mold 3 first, and then the stamping cylinder 61 can be started. After the stamping cylinder 61 is running, it will drag the upper mold 63 down. At this time, the upper mold 63 can cooperate with the lower mold 3 to stamp and form. The stamping slot 4 can smoothly discharge the stamped material. After the stamping is completed, the pusher cylinder 72 is started to push the push plate, which drives the stamped material to move. This can help to quickly discharge the formed material, which provides convenience for the rapid forming process of the device. During the forming process, the flattening block 64 can also be used to assist in flattening, which further improves the overall production quality of this device. If the upper mold 63 needs to be replaced, simply turn the hand screw 623 to pull the mounting plate 622 out from the inside of the frame base 621. The operation is very convenient and quick. It can be seen that the device is easy to quickly disassemble and replace the upper mold 63 and the lower mold 3 during use, which improves the adaptability of the device during use and facilitates the production and processing according to different transformer cores.

Claims

1. A transformer core stamping die, comprising a base plate (1), characterized in that: The substrate (1) is provided with an installation mechanism (2) in the middle. The substrate (1) is provided with a lower mold (3) through the installation mechanism (2). The lower mold (3) has stamping slots (4) at both ends of its rear side. A support frame (5) is fixedly installed on the rear top side of the substrate (1). A stamping mechanism (6) is fixedly connected to the top of the support frame (5). A pushing mechanism (7) is fixedly connected to the lower rear side of the support frame (5). The pushing mechanism (7) includes a fixed seat (71), which is fixedly connected to the lower back of the support frame (5). A pushing cylinder (72) is fixedly connected to the middle of the fixed seat (71), and a pushing plate (73) is fixedly connected to the output end of the pushing cylinder (72) through the support frame (5). The mounting mechanism (2) includes a mounting groove (21) and a limiting component (22). The mounting groove (21) is located in the middle of the substrate (1). Sliding grooves (23) are provided on both sides of the mounting groove (21). A sliding plate (24) is slidably connected inside the sliding groove (23). The inner side of the sliding plate (24) is fixedly connected to both sides of the lower mold (3). The limiting component (22) is fixedly connected to the bottom front end of the substrate (1). The limiting component (22) and the lower mold (3) are engaged.

2. The transformer core stamping die according to claim 1, characterized in that: The limiting component (22) includes a limiting block (221) and a guide rail (222). The guide rail (222) is fixedly connected to the bottom front end of the substrate (1). The limiting block (221) is fixedly connected to the bottom front end of the lower mold (3). Limiting springs (223) are fixedly connected to both ends of the guide rail (222). A sliding frame (224) is welded to the outer end of the limiting spring (223). A limiting arm (225) is fixedly connected to the front of the sliding frame (224). Limiting grooves (226) are opened on both sides of the limiting block (221). The end of the limiting arm (225) is inserted into the inside of the limiting groove (226).

3. The transformer core stamping die according to claim 2, characterized in that: A side rail (227) is fixedly connected to the bottom center of the guide rail (222), and a movable plate (228) is slidably connected inside the side rail (227). An arrow guide plate (229) is fixedly connected to the bottom of the movable plate (228), and a guide plate (2210) is fixedly connected to the bottom of the slide frame (224). The arrow guide plate (229) and the guide plate (2210) are connected in a transmission manner.

4. A transformer core stamping die according to claim 3, characterized in that: The front end of the arrow guide plate (229) is arranged in an isosceles triangle, and the inner end of the guide plate (2210) is arranged in an arc shape. The inclined surface of the arrow guide plate (229) and the inner arc surface of the guide plate (2210) are fitted together.

5. A transformer core stamping die according to claim 1, characterized in that: Support arms (8) are welded and installed on both sides of the bottom of the substrate (1). The cross-sectional shape of the support arm (8) is L-shaped. Mounting holes (9) are opened on both the front and rear sides of the outer end of the support arm (8). The mounting holes (9) are countersunk holes.

6. A transformer core stamping die according to claim 1, characterized in that: The stamping mechanism (6) includes a stamping cylinder (61), which is fixedly installed on the top front side of the support frame (5). The bottom output end of the stamping cylinder (61) passes through the support frame (5) and is fixedly connected to an installation component (62). The bottom of the stamping cylinder (61) is mounted with an upper mold (63) through the installation component (62). The bottom front end of the upper mold (63) is fixedly connected to a flattening block (64).

7. A transformer core stamping die according to claim 6, characterized in that: The mounting assembly (62) includes a frame base (621), which is fixedly connected to the bottom output end of the stamping cylinder (61). A mounting plate (622) is slidably connected to the inner side of the frame base (621). The bottom of the mounting plate (622) is fixedly connected to the top of the upper mold (63). A hand-tightening screw (623) is threadedly connected to the front end of the top of the frame base (621). The end of the hand-tightening screw (623) passes through the frame base (621) and the mounting plate (622) and is threadedly connected.

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