A low voltage transformer casting mold assembly

Abstract

The present application relates to a low-voltage transformer pouring mold assembly, comprising a mold body and a side mold, one side of the mold body is connected with the side mold, and a cavity is formed in the inside of the mold body. The device is provided with a degassing vibration assembly and a connection separation assembly. The transmission rod in the degassing vibration assembly drives the movement of the push block. The push block cooperates with the impact block on the movable block to form an elastic impact with the transmission block in the sliding groove through the spring to generate vibration. The connection separation assembly cooperates with the vibration adjustment assembly to make the side mold vibrate synchronously. The vibration is transmitted to the mixed material in the cavity, effectively loosening and driving the wrapped bubbles and the air trapped in the cavity. The device can vibrate and discharge the bubbles in the mixed material and the corners of the cavity through multi-point vibration, solving the problem of residual bubbles in the traditional mold affecting the production quality.

Description

Technical Field

[0001] This invention relates to the field of instrument transformer casting mold technology, and more specifically to a low-voltage instrument transformer casting mold assembly. Background Technology

[0002] Low-voltage instrument transformer casting mold assembly is a tooling used in the production of low-voltage instrument transformers. By casting insulating materials such as epoxy resin, the insulating shell, winding encapsulation and other structures of the instrument transformer are formed. It usually includes mold body, positioning parts, casting channels, etc. It can ensure the dimensional accuracy and electrical insulation performance of the formed parts and is a key tool in instrument transformer manufacturing.

[0003] In actual production, although traditional low-voltage transformer casting mold assemblies are equipped with vents, they still cannot effectively remove air bubbles generated during the casting of epoxy resin mixtures, as well as air trapped inside the mold cavity. When the mixture rapidly fills the cavity, some air bubbles are easily trapped inside the resin. At the same time, air is difficult to completely expel from the complex corners, small gaps, and mating gaps between components. As the mixture gradually solidifies, these air bubbles that cannot be expelled in time will eventually form a large number of micron-sized, irregularly distributed air gaps inside the solidified epoxy resin, affecting the production quality of the casting mold assembly. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a low-voltage transformer casting mold assembly, which can effectively solve the problem of air bubbles that are difficult to completely expel and form air gaps in the mold cavity in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a low-voltage transformer casting mold assembly, comprising: a mold body and a side mold, one side of the mold body being inserted and connected to the side mold, the interior of the mold body having a cavity, and the top of the mold body being connected to an injection hopper, and further comprising; A degassing vibration assembly for removing air bubbles from a mold body includes two sets of transmission rods. Several sets of pushing blocks are fixedly connected to the surfaces of the two sets of transmission rods. Several sets of movable blocks are arranged inside the pushing blocks, and the movable blocks are fixedly connected inside a cavity. A sliding groove is provided on the outer side of each movable block. A collision block is slidably connected inside the sliding groove. A transmission block is fixedly connected inside the sliding groove, and the outer side of the transmission block is fixedly connected to the collision block via a spring. A connecting vibration assembly is fixedly connected to the bottom surface inside the cavity. A transmission adjustment assembly is slidably connected to one side of each transmission rod, and a connecting separation assembly is provided at the other end of each transmission rod. The connection and separation assembly includes a reciprocating screw, a reciprocating sleeve is threadedly connected to the surface of the reciprocating screw, a moving block is fixedly connected to the inner side of the reciprocating sleeve, a compression ring is fixedly connected to the bottom of the reciprocating sleeve, a vibration adjustment assembly is slidably connected to the surface of the compression ring, and two sets of connecting grooves are opened on the side of the side mold near the mold body, with the reciprocating screw and the reciprocating sleeve located inside the connecting grooves.

[0006] Furthermore, the vibration adjustment assembly includes a compression column, the compression end of which is connected to a one-way solenoid valve. The one-way solenoid valve is connected to an expansion box via a pipe, and one side of the expansion box is fixedly connected to the inside of the side mold. A vibration rod is slidably connected inside the expansion box, and the vibration rod is fixedly connected to the inside of the expansion box via a spring.

[0007] Furthermore, the connecting vibration assembly includes two sets of air storage boxes. The top of the air storage box is slidably connected to a compression tilting block via a pusher plate. The top of the air storage box is slidably connected to a collision ring via a moving plate. The top of the collision ring is provided with a vibration block, and the vibration block is fixedly connected to the cavity.

[0008] Furthermore, the transmission adjustment assembly includes several sets of moving slots. A plug-in ring is slidably connected inside each moving slot, and the plug-in ring is fixedly connected to the inside of the moving slot via a damping spring. A transmission ring is plugged into the other side of the plug-in ring. A pulley is driven through the surface of the transmission ring. A synchronizing rod is driven through the inside of the pulley, and the synchronizing rod is rotatably connected to the inside of the cavity. A drive source is fixedly connected to the other end of the synchronizing rod. A fixed rod is slidably connected inside the transmission rod. A sliding ring is slidably connected to the side of the fixed rod near the drive source, and the fixed rod and the sliding ring are fixedly connected via a spring. An electromagnetic block is provided on the other side of the sliding ring, and the electromagnetic block is fixedly connected to the inside of the cavity. The plug-in end of the sliding ring is located on the other side of the plug-in ring. The fixed rod is fixedly connected to a reciprocating screw, and the plug-in ring and the sliding ring are magnetically connected.

[0009] Furthermore, a fixed block is fixedly connected to the outer side of the collision block via a movable rod, and a vibration ring is provided on the inner side of the fixed block, with the vibration ring being fixedly connected to the interior of the cavity.

[0010] Furthermore, a sliding plate is fixedly connected to the outer side of the collision block, and a friction vibration rod is slidably connected to the inner side of the sliding plate. A friction plate is provided on the side of the friction vibration rod away from the driving source, and the friction plate is fixedly connected to the cavity.

[0011] Furthermore, a support plate is provided on the inner side of the friction vibration rod, and a guide plate is fixedly connected to the side of the support plate near the transmission ring.

[0012] Furthermore, a number of contact blocks are provided on the side of the transmission ring away from the transmission rod, and the contact blocks are inclined on the side closer to the transmission ring. The contact blocks are fixedly connected to the sliding ring. A number of strong magnetic blocks are fixedly connected inside the transmission ring, and the strong magnetic blocks are magnetically connected to the contact blocks.

[0013] Furthermore, one side of the gas storage box is connected to a one-way valve via a pipe, and the other end of the one-way valve is detachably connected to the expansion box.

[0014] Furthermore, a meshing ring is fixedly connected to the side of the fixed rod near the transmission ring, and the surface of the meshing ring is inserted into the interior of the insertion ring.

[0015] Beneficial effects The technical solution provided by this invention has the following advantages compared with the known prior art: I. This invention, by setting up a degassing vibration component and a connecting and separating component, uses a transmission rod in the degassing vibration component to drive a pushing block to move. The pushing block cooperates with a collision block on the movable block, causing the collision block to elastically collide with the transmission block in the sliding groove through a spring, generating vibration. At the same time, the connecting and separating component, in conjunction with the vibration adjustment component, causes the side mold to vibrate synchronously. These vibrations are transmitted to the mixture in the cavity, effectively loosening and expelling trapped air bubbles and air trapped in the cavity. Thus, this device can vibrate and expel air bubbles from the mixture and corners of the cavity through multi-part vibration, solving the problem of residual air bubbles in traditional molds affecting production quality.

[0016] II. This invention, by setting up a vibration adjustment component and connecting components such as the vibration adjustment component, uses the compression column, one-way solenoid valve and expansion box in the vibration adjustment component to adjust the vibration of the vibration rod. The air storage box in the connecting vibration component compresses the gas by squeezing the inclined block and pushes the collision ring to collide with the vibration block to generate vibration. This vibration can break the surface tension of small air bubbles and act on the trapped air in complex corners and gaps. In this way, the device can remove air bubbles of different positions and sizes in the mixture through vibration in different directions, thereby improving the casting quality.

[0017] Third, this invention, by setting up components such as a transmission adjustment component and a connection / separation component, controls the connection switching between the transmission ring, sliding ring, and plug-in ring via an electromagnetic block in the transmission adjustment component. This achieves the conversion of power between degassing vibration and connection / separation functions. When disassembling, the connection / separation component generates high-intensity directional impact vibration through the cooperation of the compression ring and the vibration adjustment component, which directly acts on the side mold, mechanically destroying the adhesive force of the cured resin. This allows the device to both defoam and facilitate disassembly, thereby optimizing the use and maintenance process of the mold through flexible power switching and auxiliary vibration, and improving production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the split cross-section of the present invention; Figure 3 This is a partial schematic diagram of the degassing vibration assembly of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 5 This is a cross-sectional schematic diagram of the connecting vibration assembly of the present invention; Figure 6 This is a partial cross-sectional schematic diagram of the transmission adjustment component of the present invention; Figure 7 This is a schematic cross-sectional view of the connection and separation component of the present invention. Figure 8 For the present invention Figure 3 A partial side view diagram; Figure 9 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 10 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0020] Reference numerals: 1. Mold body; 2. Side mold; 3. Degassing vibration assembly; 31. Transmission rod; 32. Pushing block; 33. Moving block; 34. Collision block; 35. Transmission block; 36. Connecting vibration assembly; 361. Air storage box; 362. Extrusion tilting block; 363. Collision ring; 364. Vibration block; 37. Transmission adjustment assembly; 371. Insertion ring; 372. Transmission ring; 373. Pulley; 374. Synchronizing rod; 375. Fixed rod; 376. Sliding ring; 377. Electric... Magnetic block; 38. Connecting and separating assembly; 381. Reciprocating screw; 382. Reciprocating sleeve; 383. Moving block; 384. Compression ring; 385. Vibration adjustment assembly; 3851. Compression column; 3852. One-way solenoid valve; 3853. Expansion box; 3854. Vibration rod; 4. Fixing block; 5. Vibration ring; 6. Sliding plate; 7. Friction vibration rod; 8. Friction plate; 9. Support plate; 10. Guide plate; 11. Contact block; 12. Strong magnetic block; 13. One-way valve; 14. Engaging ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] See attached document Figure 1-10 A low-voltage transformer casting mold assembly includes: a mold body 1 and a side mold 2, one side of the mold body 1 is inserted and connected to the side mold 2, and is sealed and installed using an existing structure. The mold body 1 has an internal cavity, and the top of the mold body 1 is connected to an injection hopper. The degassing vibration assembly 3 is used to remove air bubbles from the mold body 1. The degassing vibration assembly 3 includes two sets of transmission rods 31. Several sets of pushing blocks 32 are fixedly connected to the surface of the two sets of transmission rods 31. Several sets of movable blocks 33 are provided on the inner side of the pushing blocks 32. The movable blocks 33 are fixedly connected to the inside of the cavity. A sliding groove is opened on the outer side of the movable blocks 33. A collision block 34 is slidably connected inside the sliding groove. A transmission block 35 is fixedly connected inside the sliding groove. The outer side of the transmission block 35 is fixedly connected to the collision block 34 by a spring. A connecting vibration assembly 36 is fixedly connected to the bottom surface inside the cavity. A transmission adjustment assembly 37 is slidably connected to one side of the transmission rod 31. A connecting separation assembly 38 is provided at the other end of the transmission rod 31. The connecting and separating assembly 38 includes a reciprocating screw 381, a reciprocating sleeve 382 threadedly connected to the surface of the reciprocating screw 381, a moving block 383 fixedly connected to the inner side of the reciprocating sleeve 382, ​​a compression ring 384 fixedly connected to the bottom of the reciprocating sleeve 382, ​​and a vibration adjustment assembly 385 slidably connected to the surface of the compression ring 384. Two sets of connecting grooves are provided on the side of the side mold 2 near the mold body 1. The reciprocating screw 381 and the reciprocating sleeve 382 are located inside the connecting grooves. The degassing vibration assembly 3, through the rotation of the two sets of transmission rods 31, drives the pushing block 32 on its surface to move synchronously. The pushing block 32 continuously acts on the collision block 34 inside the moving block 33, causing the collision block 34 to elastically collide with the transmission block 35 in the sliding groove through a spring, resulting in high-frequency vibration of the collision block 34 during movement. The vibration is directly transmitted to the mold cavity inside the mold body 1, effectively loosening the air bubbles trapped in the mixture. At the same time, when the reciprocating screw 381 of the connecting separation component 38 rotates in the connecting groove, it drives the reciprocating screw sleeve 382 to move the moving block 383 and the compression ring 384 at the bottom synchronously. The compression ring 384 cooperates with the vibration adjustment component 385 to adjust the vibration state. The moving block 383, through the synergistic effect with the vibration adjustment component 385, causes the side mold 2 to vibrate, thereby improving the air bubble discharge effect during use. Subsequently, when disassembling the mold body 1 and the side mold 2, the compression ring 384 cooperates with the vibration adjustment component 385 again for adjustment. Under the linkage of the moving block 383, it can also generate high-intensity low-frequency vibration, reducing the adhesion between the side mold 2 and the mold body 1, and improving the ease of disassembly.

[0024] The vibration adjustment assembly 385 includes a compression column 3851. The compression end of the compression column 3851 is connected to a one-way solenoid valve 3852. The one-way solenoid valve 3852 is connected to an expansion box 3853 via a pipe. One side of the expansion box 3853 is fixedly connected to the inside of the side mold 2. A vibration rod 3854 is slidably connected inside the expansion box 3853. The vibration rod 3854 is fixedly connected to the inside of the expansion box 3853 by a spring. The expansion box 3853 and the vibration rod 3854 are sealed using a prior art sealing structure, allowing the vibration rod 3854 to slide normally and ensuring the expansion box 3853 remains sealed. To ensure a good sealing effect, in the vibration adjustment assembly 385, the compression column 3851 and the compression ring 384 cooperate to provide compressed gas. This gas is delivered to the expansion box 3853, which is equipped with a spring, after being controlled by the one-way solenoid valve 3852. When the gas pressure inside the expansion box 3853 increases, the gas thrust will cause one side of the expansion box 3853 to expand, which limits the vibration rod 3854. In the initial state, the expansion box 3853 will compress the vibration rod 3854. At this time, the expansion box 3853 no longer compresses the vibration rod 3854, leaving the spring in an uncompressed state. When the moving block 383 reciprocates with the reciprocating screw sleeve 382... During this process, the vibrating rod 3854 continuously collides with the expansion box 3853, causing it to move inward and compress the connected spring. Simultaneously, the vibrating rod 3854 collides with the inner wall of the expansion box 3853, generating vibration force. Then, under the spring's elasticity, the vibrating rod 3854 returns to its original position and collides with the inner wall of the expansion box 3853 again. This repetitive motion continuously generates high-frequency vibration force, effectively enhancing the ability to drive away air bubbles in the mixture. When it is necessary to disassemble the side mold 2, the one-way solenoid valve 3852 can be opened to release the air pressure inside the expansion box 3853. At this time, the expansion box 385... The expansion end inside 3 moves back to its original position under the action of the spring connected to it, and generates a compressive force on the vibrating rod 3854 and the spring connected to it, pushing the vibrating rod 3854 away from the mold body 1. That is, the vibrating rod 3854 is closer to the inside of the expansion box 3853. When the movable block 33 acts on the vibrating rod 3854, since the spring is in a compressed state, the vibrating rod 3854 will only produce a single collision vibration with the inside of the expansion box 3853 after being hit. This single vibration, combined with the reciprocating motion of the reciprocating screw sleeve 382, ​​can reduce the adhesion between the side mold 2 and the mold body 1, thereby facilitating disassembly.

[0025] The connecting vibration assembly 36 includes two sets of air storage boxes 361. A compression tilting block 362 is slidably connected to the top of each air storage box 361 via a pusher plate. A collision ring 363 is slidably connected to the top of each air storage box 361 via a moving plate. The side of the pusher plate closest to the moving plate is slidably connected to the interior of the air storage box 361 via a telescopic plate. A sliding seal is formed between the pusher plate and the moving plate via the telescopic plate, ensuring that the pusher plate can stably push the moving plate when moving compressed gas. A vibration block 364 is provided on the top of the collision ring 363, and the vibration block 364 is fixedly connected to the cavity. The air storage box 361 of the connecting vibration assembly 36 can store compressed gas. When the pusher block 32 rotates, it will compress... The top of the tilting block 362 generates a thrust, causing the squeezing tilting block 362 to move downwards. This, in turn, compresses the gas in the gas storage box 361 through the air pusher plate. At the same time, the air pusher plate is also connected to a telescopic sealing plate inside the gas storage box 361 to ensure its sealing when compressing the gas, ensuring that the internal gas can be effectively compressed. The compressed gas then pushes the moving plate to move, and the moving plate drives the collision ring 363 to slide synchronously. During the sliding process, the collision ring 363 will collide with the vibrating block 364 at the bottom of the cavity and generate vibration force. This vibration force will be transmitted to the mixture inside the cavity, which can act on the bubbles in the cavity, drive the bubbles to float, and significantly improve the thoroughness of bubble discharge.

[0026] The transmission adjustment assembly 37 includes several sets of moving slots. A connecting ring 371 is slidably connected to the inside of each moving slot via a connecting rod. The connecting rod end of the connecting ring 371 is fixedly connected to the inside of the moving slot via a damping spring. A transmission ring 372 is connected to the other side of the connecting ring 371. A pulley 373 is drivenly connected to the surface of the transmission ring 372. A synchronizing rod 374 is drivenly connected inside the pulley 373 and is rotatably connected to the inside of the cavity. A drive source is fixedly connected to the other end of the synchronizing rod 374. A fixed rod 375 is slidably connected inside the transmission rod 31. A sliding ring 376 is slidably connected to the side of the fixed rod 375 closest to the drive source. The moving rings 376 are fixedly connected by springs. An electromagnetic block 377 is provided on the other side of the sliding ring 376 and is fixedly connected to the cavity. The insertion end of the sliding ring 376 is located on the other side of the insertion ring 371. The fixed rod 375 is fixedly connected to the reciprocating screw 381. The insertion ring 371 and the sliding ring 376 are magnetically connected. In the transmission adjustment assembly 37, the drive source first drives the pulley 373 to rotate via the synchronizing rod 374, which in turn drives the transmission ring 372 to rotate. At this time, the insertion ring 371, located in the moving groove, maintains an insertion connection with the transmission ring 372 through a damping spring. Under the rotation of the transmission ring 372, the insertion ring 371 will drive the transmission rod 31 to move synchronously forward. The drive ring rotates, and the electromagnetic block 377 can control the position of the sliding ring 376 through magnetic force. When the electromagnetic block 377 is energized, the sliding ring 376 will be repelled by magnetic force and move towards the drive ring 372 and enter the drive ring 372. Due to the action of the meshing ring 14, the insertion ring 371 will drive the fixed rod 375 and the sliding ring 376 to rotate synchronously through the meshing ring 14. Therefore, the sliding ring 376 will be smoothly pushed into the drive ring 372. At the same time, the sliding ring 376 will push the insertion ring 371, which was originally inserted into the drive ring 372, out of the drive ring 372, so that the insertion ring 371 is disconnected from the drive ring 372. At this time, the rotational power of the drive ring 372 is no longer transmitted. Instead of driving the transmission rod 31, it only drives the fixed rod 375 to rotate. The rotation of the fixed rod 375 will further drive the reciprocating screw 381 to rotate synchronously, realizing the precise switching of the power transmission path. When the electromagnetic block 377 is closed, the plug ring 371 will gradually return to its original position under the action of the damping spring. The plug ring 371 will first engage with the meshing ring 14. During the engagement process, the plug ring 371 will gradually engage with the meshing ring 14 under the action of the damping spring, avoiding rigid collision. After the meshing ring engages with the plug ring 371, the plug ring 371 can move with the rotation of the transmission ring 372, thereby stably inserting into the interior of the transmission ring 372 and realizing stable path switching.

[0027] A fixed block 4 is fixedly connected to the outer side of the collision block 34 via a movable rod. A vibration ring 5 is provided on the inner side of the fixed block 4. The vibration ring 5 is fixedly connected to the inside of the cavity. When the collision block 34 slides back and forth in the sliding groove, it will drive the fixed block 4 to reciprocate through the movable rod. During the movement, the fixed block 4 continuously collides with the inner vibration ring 5, thereby causing the vibration ring 5 to generate high-frequency vibration. This vibration is transmitted to the inner wall and surrounding area of ​​the cavity through the vibration ring 5, effectively expanding the vibration coverage area and accelerating the escape speed of the bubbles inside the mixture to the top of the cavity or the exhaust channel.

[0028] A sliding plate 6 is fixedly connected to the outer side of the collision block 34, and a friction vibration rod 7 is slidably connected to the inner side of the sliding plate 6. A friction plate 8 is provided on the side of the friction vibration rod 7 away from the driving source, and the friction plate 8 is fixedly connected to the cavity. When the collision block 34 slides back and forth in the sliding groove, it will synchronously drive the sliding plate 6 on its outer side to reciprocate. The friction vibration rod 7 on the inner side of the sliding plate 6 will slide relative to the plate surface as the sliding plate 6 moves. During this process, the friction vibration rod 7 and the friction plate 8 fixed in the cavity will continuously rub against each other, thereby generating high-frequency fine friction vibration. This friction vibration can be transmitted to the surface of the bubbles through the mixture. With the help of continuous frictional impact, the fluidity of the material is improved, the resistance of bubble flow is reduced, and the bubbles wrapped in the mixture are caused to break. At the same time, the upward thrust generated by the vibration accelerates the bubbles to float to the top of the cavity. It complements the vibration directly generated by the collision block 34 in terms of action mode and coverage, further improving the overall defoaming efficiency.

[0029] A support plate 9 is provided on the inner side of the friction vibration rod 7. A guide plate 10 is fixedly connected to the side of the support plate 9 near the transmission ring 372. The guide plate 10 can guide the sliding trajectory of the friction vibration rod 7 and strictly limit its range of motion to ensure that it is always within the preset friction area. At the same time, the guide plate 10 guides the friction vibration rod 7 to slide along the oblique trajectory through a preset tilt angle. Within the effective stroke range, this tilting movement can increase the contact area between the friction vibration rod 7 and the fixed friction plate 8, thereby ensuring that the friction vibration is generated continuously and evenly. The stable friction vibration will transmit the continuous force evenly to the mixture, continuously impacting and driving away the encapsulated air bubbles, ensuring the stability and reliability of the defoaming effect.

[0030] A plurality of contact blocks 11 are provided on the side of the transmission ring 372 away from the transmission rod 31, and the contact blocks 11 are inclined on the side closer to the transmission ring 372. The contact blocks 11 are fixedly connected to the sliding ring 376. A plurality of strong magnetic blocks 12 are fixedly connected inside the transmission ring 372. The strong magnetic blocks 12 are magnetically connected to the contact blocks 11. The strong magnetic blocks 12 inside the transmission ring 372 and the contact blocks 11 on the sliding ring 376 are magnetically attracted. When the sliding ring 376 moves and needs to be inserted into the interior of the transmission ring 372, it will first push the contact blocks 11 to move. The contact block 11 is magnetically connected to the strong magnet 12 in the slot of the transmission ring 372. The side of the contact block 11 closest to the transmission ring 372 is inclined to serve as a guide, making it easier for the contact block 11 to be inserted into the slot of the transmission ring 372. This guides the sliding ring 376 to be inserted into the transmission ring 372, avoiding the situation where the sliding ring 376 is difficult to insert into the transmission ring 372 during use. This effectively avoids the situation where the sliding ring 376 is stuck or difficult to insert due to misalignment during the insertion process, ensuring the smoothness and stability of the component connection.

[0031] One side of the gas storage box 361 is connected to a one-way valve 13 via a pipe. The other end of the one-way valve 13 is detachably connected to the expansion box 3853. The one-way valve 13 restricts the gas flow to flow only from the expansion box 3853 to the gas storage box 361, preventing the compressed gas in the gas storage box 361 from leaking back. In actual use, the gas pressure in the gas storage box 361 can be detected in real time by the gas pressure sensor installed on the gas storage box 361. When the gas pressure in the gas storage box 361 is insufficient, the one-way valve 13 can be connected to the expansion box 3853. At this time, the control valve of the expansion box 3853 is opened, and the compressed gas stored in the expansion box 3853 will be introduced into the gas storage box 361 through the one-way valve 13 to replenish its gas pressure. The detachable connection design not only ensures the flexibility of the gas replenishment operation, but also ensures the stability of the gas pressure in the gas storage box 361 through the one-way conduction characteristic of the one-way valve 13, thereby ensuring the continuous and effective operation of the connected vibration component 36.

[0032] A meshing ring 14 is fixedly connected to the side of the fixed rod 375 near the transmission ring 372. The surface of the meshing ring 14 is inserted into the inside of the insertion ring 371. The insertion ring 371 is inserted into the meshing ring 14. When the insertion ring 371 rotates, it can drive the fixed rod 375 to rotate. However, when the sliding ring 376 is inserted into the transmission ring 372 and the insertion ring 371 is pushed out of the transmission ring 372, the rotation of the sliding ring 376 and the transmission ring 372 will only drive the fixed rod 375 to rotate, and will not drive the transmission rod 31 to rotate.

[0033] Working principle: When using this low-voltage transformer to cast the mold assembly, firstly, the low-voltage transformer is installed into the mold body 1. Then, the side plate is inserted and fixed to the mold body 1. During installation, by moving the side plate, the reciprocating sleeve 382 and the reciprocating screw 381 and their corresponding connected components are inserted into the interior of the side plate. After the connection is completed, epoxy resin mixture is injected into the cavity of the mold body 1 through the injection bucket. Then, the drive source is started. The drive source drives the pulley 373 to rotate through the synchronous rod 374, which in turn drives the transmission ring 372 to rotate. At this time, the insertion ring 371 is pushed by the damping spring to maintain the insertion with the transmission ring 372. Under the rotation of the transmission ring 372, the insertion ring 371 drives the transmission rod 31 to rotate synchronously, starting the degassing vibration process. When the transmission rod 31 rotates, the pushing block 32 on its surface moves along with it, continuously acting on the collision block 34 that is slidably connected in the movable block 33 in the cavity. This causes the collision block 34 to slide back and forth in the sliding groove of the movable block 33. The collision block 34 and the transmission block 35 in the sliding groove form an elastic collision through the spring. With the force of the spring, they move back and forth, generating high-frequency vibration. This vibration is directly transmitted to the mixture in the mold body 1, loosening the air bubbles trapped within. At the same time, the collision block 34 drives the fixed block 4 to move back and forth through the movable rod. The fixed block 4 continuously collides with the vibration ring 5, causing the vibration ring 5 to generate high-frequency vibration and expand the vibration coverage area, accelerating the air bubbles to escape to the top of the cavity or through the exhaust channel. In addition, the collision block 34 also drives the sliding plate 6 to move back and forth. The friction vibration rod 7 on the inner side of the sliding plate 6 then continuously rubs against the fixed friction plate 8 under the guidance of the support plate 9 and the guide plate 10, generating high-frequency fine friction vibration. The friction impact force breaks the surface tension of the air bubbles, causing them to burst and accelerate upward with the vibration thrust. This complements the vibration of the collision block 34, improving the defoaming efficiency. Simultaneously, when the push block 32 on the transmission rod 31 rotates, it also generates a thrust on the top of the extrusion tilt block 362, causing the extrusion tilt block 362 to compress the gas in the air storage box 361 through the air pusher plate. The compressed gas pushes the moving plate to drive the collision ring 363 to slide. The collision ring 363 collides with the vibration block 364 at the bottom of the cavity to generate vibration force. This vibration force acts on the small gaps at the bottom of the cavity and the gaps between parts, areas where air bubbles are easily trapped, effectively breaking up trapped air bubbles and improving the thoroughness of defoaming. At the same time, the air storage box 361 passes through the one-way valve 13 It can be connected to the expansion box 3853. When the air pressure in the air storage box 361 is insufficient, the compressed gas in the expansion box 3853 can be supplemented to the air storage box 361 through the one-way valve 13. When supplementing the air pressure in the expansion box 3853 to the inside of the air storage box 361, the air pressure in the expansion box 3853 must be ensured first. Then, the valve connecting the expansion box 3853 and the one-way valve 13 can be opened. Under the reciprocating action of the compression ring 384 driven by the reciprocating screw sleeve 382, ​​the air pressure inside the expansion box 3853 can be supplemented in conjunction with the compression column 3851. When the transmission rod 31 rotates, it also drives the reciprocating screw 381 to rotate. The rotation of the reciprocating screw 381 can drive the reciprocating screw sleeve 382 and the compression ring 384 at the bottom to move back and forth in the connecting groove of the side mold 2. The reciprocating movement of the compression ring 384 cooperates with the compression column 3851 to provide compressed gas. The gas enters the expansion box 3853 through the one-way solenoid valve 3852, causing the expansion box 3853 to expand and no longer compress the spring connected to the vibrating rod 3854. At this time, the moving block 383 on the reciprocating screw sleeve 382 continues to collide with the vibrating rod 3854 with the reciprocating motion, causing the vibrating rod 3854 to move into the expansion box 3853 and compress the spring. Then, under the action of the spring force, it reverses and resets and collides again, continuously generating high-frequency vibration force, which enhances the ability to drive away air bubbles in the mixture. When the side mold 2 needs to be disassembled, the electromagnetic block 377 is energized to generate a magnetic repulsive force, which pushes the sliding ring 376 to move towards the transmission ring 372 and insert it into the transmission ring 372. At the same time, the insertion ring 371 is pushed out of the transmission ring 372, so that the rotational power of the transmission ring 372 is transmitted only to the fixed rod 375, which drives the reciprocating screw 381 to rotate alone. At this time, the one-way solenoid valve 3852 is opened to release the air pressure in the expansion box 3853. The spring in the expansion box 3853 is reset and compresses and pushes the spring connected to the vibration rod 3854 inward. When the moving block 383 collides with the vibration rod 3854, only a single vibration is generated. The reciprocating motion of the reciprocating screw sleeve 382 reduces the adhesion between the side mold 2 and the mold body 1, improves the ease of disassembly, and the strong magnetic block 12 inside the transmission ring 372 is magnetically connected to the inclined contact block 11 on the sliding ring 376, which can guide the sliding ring 376 to smoothly insert into the transmission ring 372, avoid jamming, and ensure the stability of the switching process. Through the coordinated operation of its components, this mold assembly can effectively remove air bubbles from the mixture during the casting process by vibrating at multiple angles, thereby improving product quality. It can also facilitate the separation of the side mold 2 by adjusting the vibration during disassembly, thereby improving production efficiency.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-voltage transformer casting mold assembly, comprising a mold body and side molds, characterized in that: One side of the mold body is connected to a side mold, the interior of the mold body has a cavity, the top of the mold body is connected to an injection hopper, and it also includes; A degassing vibration assembly for removing air bubbles from a mold body includes two sets of transmission rods. Several sets of pushing blocks are fixedly connected to the surfaces of the two sets of transmission rods. Several sets of movable blocks are arranged inside the pushing blocks, and the movable blocks are fixedly connected inside a cavity. A sliding groove is provided on the outer side of each movable block. A collision block is slidably connected inside the sliding groove. A transmission block is fixedly connected inside the sliding groove, and the outer side of the transmission block is fixedly connected to the collision block via a spring. A connecting vibration assembly is fixedly connected to the bottom surface inside the cavity. A transmission adjustment assembly is slidably connected to one side of each transmission rod, and a connecting separation assembly is provided at the other end of each transmission rod. The connection and separation assembly includes a reciprocating screw, a reciprocating sleeve is threadedly connected to the surface of the reciprocating screw, a moving block is fixedly connected to the inner side of the reciprocating sleeve, a compression ring is fixedly connected to the bottom of the reciprocating sleeve, a vibration adjustment assembly is slidably connected to the surface of the compression ring, and two sets of connecting grooves are opened on the side of the side mold near the mold body, and the reciprocating screw and the reciprocating sleeve are located inside the connecting grooves. The vibration adjustment assembly includes a compression column, the compression end of which is connected to a one-way solenoid valve. The one-way solenoid valve is connected to an expansion box through a pipe, and one side of the expansion box is fixedly connected to the inside of the side mold. A vibration rod is slidably connected inside the expansion box, and the vibration rod is fixedly connected to the inside of the expansion box through a spring. The connecting vibration assembly includes two sets of air storage boxes. The top of the air storage box is slidably connected to a compression tilting block via a push plate. The top of the air storage box is slidably connected to a collision ring via a moving plate. The top of the collision ring is provided with a vibration block, and the vibration block is fixedly connected to the cavity. The transmission adjustment assembly includes several sets of moving slots. A plug-in ring is slidably connected inside each moving slot, and the plug-in ring is fixedly connected to the inside of the moving slot via a damping spring. A transmission ring is plugged into the other side of each plug-in ring. A pulley is driven through the surface of the transmission ring. A synchronizing rod is driven through the inside of the pulley, and the synchronizing rod is rotatably connected to the inside of the cavity. A drive source is fixedly connected to the other end of the synchronizing rod. A fixed rod is slidably connected inside the transmission rod. A sliding ring is slidably connected to the side of the fixed rod near the drive source, and the fixed rod and the sliding ring are fixedly connected by a spring. An electromagnetic block is provided on the other side of the sliding ring, and the electromagnetic block is fixedly connected to the inside of the cavity. The plug-in end of the sliding ring is located on the other side of the plug-in ring. The fixed rod is fixedly connected to a reciprocating screw. The plug-in ring and the sliding ring are magnetically connected.

2. The low-voltage transformer casting mold assembly according to claim 1, characterized in that, A fixed block is fixedly connected to the outside of the collision block via a movable rod, and a vibration ring is provided on the inside of the fixed block. The vibration ring is fixedly connected to the inside of the cavity.

3. The low-voltage transformer casting mold assembly according to claim 1, characterized in that, A sliding plate is fixedly connected to the outer side of the collision block, and a friction vibration rod is slidably connected to the inner side of the sliding plate. A friction plate is provided on the side of the friction vibration rod away from the driving source, and the friction plate is fixedly connected to the cavity.

4. The low-voltage transformer casting mold assembly according to claim 3, characterized in that, A support plate is provided on the inner side of the friction vibration rod, and a guide plate is fixedly connected to the side of the support plate near the transmission ring.

5. A low-voltage transformer casting mold assembly according to claim 1, characterized in that, The transmission ring has several sets of contact blocks on the side away from the transmission rod, and the contact blocks are inclined on the side closer to the transmission ring. The contact blocks are fixedly connected to the sliding ring. Several sets of strong magnetic blocks are fixedly connected inside the transmission ring, and the strong magnetic blocks are magnetically connected to the contact blocks.

6. The low-voltage transformer casting mold assembly according to claim 1, characterized in that, One side of the gas storage box is connected to a one-way valve via a pipe, and the other end of the one-way valve is detachably connected to the expansion box.

7. The low-voltage transformer casting mold assembly according to claim 1, characterized in that, A meshing ring is fixedly connected to the side of the fixed rod near the transmission ring, and the surface of the meshing ring is inserted into the inside of the insertion ring.

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