Waterproof structure for inverter die-casting cavity

Abstract

The utility model discloses a waterproof structure for an inverter die-casting cavity, which comprises a base, a supporting frame arranged on the rear side of the upper end of the base, a hydraulic cylinder arranged at the upper end of the interior of the supporting frame, an upper die arranged at the output end of the hydraulic cylinder, a lower die arranged in the middle of the upper end of the base, and a water gathering groove arranged in the middle of the upper end of the base. The water collecting grooves are formed in the two sides of the upper end of the base, water collecting cavities are formed in the lower side of the interior of the base, the water collecting grooves are connected with the water collecting cavities through connecting pipes, the upper mold further comprises a concentric-square-shaped groove, the concentric-square-shaped groove is formed in the upper end of the interior of the lower mold, and a concentric-square-shaped plate is welded to the lower end of the upper mold and matched with the concentric-square-shaped groove. According to the waterproof structure for the inverter die-casting cavity, water can be drained by the drainage pipe, erosion of the water to equipment is reduced through timely drainage, the service life of the die and the base is prolonged, and the replacement and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of inverter manufacturing technology, specifically a waterproof structure for the die-casting cavity of an inverter. Background Technology

[0002] The inverter die-casting cavity is an important component in the inverter manufacturing process. Specifically, it refers to the mold cavity used to form the internal metal structure of the inverter in the die-casting process. Die-casting is a casting method in which molten alloy is filled into the mold cavity under high pressure and high speed, and then cooled and solidified under high pressure. The design, manufacturing and use of the inverter die-casting cavity play a crucial role in the performance, quality and cost control of the inverter.

[0003] Chinese Patent CN212945365U discloses a cavity structure for a die-casting mold for a communication filter, including a base. A fixed mold is provided at the upper end of the base. Columns are provided through both sides of the fixed mold. A crossbeam is provided at the top of each column. A first hydraulic actuator is provided at the upper end of the crossbeam. Support rods are provided on both sides of the first hydraulic actuator near the crossbeam. A telescopic rod is connected below the end shaft of the first hydraulic actuator. A moving mold is provided at the bottom end of the telescopic rod. A flow divider is provided through the upper end of the moving mold. A feed port is provided at the top end of the flow divider. Exhaust ports are provided inside both sides of the fixed mold. The exhaust ports are connected to exhaust pipes. A solenoid valve is provided on the annular surface of the exhaust pipe. One end of the exhaust pipe is connected to an exhaust pump. Vibration mechanisms are provided on both outer sides of the fixed mold. A push groove is provided inside the fixed mold. A first push plate is provided inside the push groove. A ejector pin is provided through the base at the bottom end of the first push plate. The ejector pin is connected to the end shaft of a second hydraulic actuator.

[0004] While the above solution can facilitate the removal of the die-cast cavity structure, the outer wall of the mold needs to be cleaned and maintained regularly during the inverter die-casting process. Water or other liquids are used during the cleaning process and are not completely dried, which can easily leave moisture on the base. In addition, the die-casting cavity lacks an effective waterproof structure during cleaning, and water can easily enter the die-casting cavity, making it inconvenient to clean the water. Therefore, it does not meet the current requirements. To address this, we propose a waterproof structure for the inverter die-casting cavity. Utility Model Content

[0005] The purpose of this invention is to provide a waterproof structure for the die-casting cavity of an inverter, so as to solve the problems mentioned in the background art, such as the lack of effective waterproofing during the cleaning of the outer wall of the inverter die-casting cavity, which affects subsequent cleaning, and the easy residue of water on the base, which affects subsequent die-casting work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for an inverter die-casting cavity, including a base, a support frame provided on the rear side of the upper end of the base, a hydraulic cylinder provided at the upper end inside the support frame, an upper mold provided at the output end of the hydraulic cylinder, and a lower mold provided at the middle position of the upper end of the base.

[0007] It also includes water collection tanks, which are opened on both sides of the upper end of the base, and a water collection cavity is opened on the lower side inside the base. The water collection tanks and the water collection cavity are connected by connecting pipes.

[0008] It also includes a spiral groove, which is formed at the upper end inside the lower mold, and a spiral plate is welded to the lower end of the upper mold, and the spiral plate is adapted to the spiral groove.

[0009] Preferably, a herringbone waterproof adhesive strip is bonded and fixed to the lower end of the herringbone groove, and an adhesive strip groove is opened at the lower end of the upper mold, and the adhesive strip groove is adapted to the herringbone waterproof adhesive strip.

[0010] Preferably, several equally spaced inclined baffles are welded to both sides inside the connecting pipe.

[0011] Preferably, each of the water collection tanks is provided with a guide rod on its outer side, and the upper and lower ends of the guide rods are welded and fixed to the support frame and the base, respectively. Slider blocks are welded to both sides of the upper mold, and the guide rods pass through the sliders and slide with the sliders.

[0012] Preferably, a buffer spring is fitted on the lower side of the guide rod, one end of the buffer spring is connected to the slider, and the other end of the buffer spring is connected to the base.

[0013] Preferably, a conical block is provided at the middle position of the lower end of the water-collecting cavity.

[0014] Preferably, drain pipes are provided on the lower sides of both sides of the base, and one end of each drain pipe is connected to the water collection cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model features water collection tanks on both sides of the upper end of the base. When cleaning the outer walls of the upper and lower molds, excess water on the base is collected in the water collection tanks and then transported to the inside of the water collection chamber through the connecting pipe. Finally, it can be discharged through the drain pipe. When the water passes through the connecting pipe, it is buffered by the inclined baffles on both sides inside the connecting pipe to avoid noise caused by direct falling. The water collection chamber is equipped with a conical block to allow the water to be discharged more effectively through the drain pipe. Timely drainage reduces the corrosion of the equipment by water, helps to extend the service life of the mold and the base, and reduces replacement and maintenance costs.

[0017] 2. This utility model uses a U-shaped plate at the lower end of the upper mold and a U-shaped groove at the upper end of the lower mold. When cleaning, the upper and lower molds can be closed. At this time, the U-shaped plate will be inserted into the U-shaped groove, which can improve the sealing effect. At the same time, the U-shaped waterproof strip will be inserted into the strip groove, thus preventing water from seeping into the interior of the upper and lower molds during cleaning. This ensures a dry environment for the upper and lower molds and avoids corrosion and rust caused by water intrusion, thereby extending the service life of the upper and lower molds.

[0018] 3. This utility model has guide rods welded to both sides of the upper end of the base. When the upper mold moves down to close with the lower mold, the upper mold will drive the slider to slide on the guide rod. The sliding of the slider will compress the buffer spring. Through the shock absorption effect of the buffer spring, wear and damage caused by direct impact between the upper and lower molds during mold closing are avoided, thereby extending the service life of the mold. At the same time, the smooth mold closing process also helps to maintain the accuracy and stability of the mold, and improves the quality and consistency of the product. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a top view of the upper structure of the base of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle;

[0023] Figure 5 For the present utility model Figure 2 Enlarged view of a portion of region B in the middle;

[0024] Figure 6 For the present utility model Figure 2 Enlarged view of a portion of region C.

[0025] In the diagram: 1. Base; 2. Support frame; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Water collection tank; 7. Connecting pipe; 8. Inclined baffle; 9. Water collection cavity; 10. Conical block; 11. Drain pipe; 12. Guide rod; 13. Slider; 14. Buffer spring; 15. U-shaped groove; 16. U-shaped plate; 17. U-shaped waterproof strip; 18. Strip groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 This utility model provides a technical solution: a waterproof structure for an inverter die-casting cavity, including a base 1, a support frame 2 is provided on the rear side of the upper end of the base 1, a hydraulic cylinder 3 is provided on the upper end inside the support frame 2, an upper mold 4 is provided on the output end of the hydraulic cylinder 3, and a lower mold 5 is provided at the middle position of the upper end of the base 1.

[0028] It also includes a water collection tank 6, which is located on both sides of the upper end of the base 1. A water collection cavity 9 is provided on the lower side inside the base 1. The water collection tank 6 and the water collection cavity 9 are connected by a connecting pipe 7.

[0029] It also includes a spiral groove 15, which is opened at the upper end inside the lower mold 5. A spiral plate 16 is welded to the lower end of the upper mold 4, and the spiral plate 16 is adapted to the spiral groove 15.

[0030] During use, the hydraulic cylinder 3 drives the upper mold 4 to move smoothly down along the guide rod 12. During this time, the slider 13 slides synchronously and compresses the buffer spring 14, effectively buffering the impact force of mold closing and protecting the upper mold 4 and lower mold 5 from damage. After mold closing, the return plate 16 is embedded in the return groove 15, and the return waterproof strip 17 is sealed in the strip groove 18 to ensure that the inside of the mold is dry. During cleaning, the water flow gathers in the water collection tank 6, and is guided by the inclined baffle 8 in the connecting pipe 7 into the water collection cavity 9. Finally, it is discharged by the drain pipe 11 with the conical block 10 to optimize drainage, reducing noise and water erosion, extending the service life of the mold and the base 1, and reducing maintenance costs.

[0031] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 A waterproof adhesive strip 17 is bonded and fixed to the lower end of the groove 15. The lower end of the upper mold 4 is provided with an adhesive strip groove 18, which is compatible with the waterproof adhesive strip 17. After the adhesive strip groove 18 and the waterproof adhesive strip 17 are connected, they can effectively seal the gap between the upper mold 4 and the lower mold 5, prevent water from seeping into the mold during cleaning or production, keep the mold environment dry, and thus improve the service life of the mold and the processing quality of the product.

[0032] Please see Figure 6Several equally spaced inclined baffles 8 are welded on both sides inside the connecting pipe 7. The inclined baffles 8 can guide the direction of water flow and prevent the water flow from directly impacting the bottom of the water collection chamber 9 and generating noise.

[0033] Please see Figure 1 , Figure 2 and Figure 3 Guide rods 12 are provided on the outer side of the water collection tank 6, and the upper and lower ends of the guide rods 12 are welded and fixed to the support frame 2 and the base 1 respectively. Sliders 13 are welded on both sides of the upper mold 4. The guide rods 12 pass through the sliders 13 and slide with the sliders 13. The guide rods 12 ensure the stability and directionality of the upper mold 4 during the movement process and prevent deviation. At the same time, the sliding cooperation between the sliders 13 and the guide rods 12 makes the movement of the upper mold 4 smoother and reduces friction and wear.

[0034] Please see Figure 1 , Figure 2 and Figure 3 Each guide rod 12 is fitted with a buffer spring 14 on its lower side. One end of each buffer spring 14 is connected to the slider 13, and the other end of each buffer spring 14 is connected to the base 1. The buffer spring 14 can play a buffering role when the upper mold 4 and the lower mold 5 are closed, reducing the impact force caused by direct impact, protecting the mold from damage, and extending the service life of the mold.

[0035] Please see Figure 2 A conical block 10 is provided at the middle position of the lower end inside the water collection cavity 9. The conical block 10 can guide the water flow to be discharged from the water collection cavity 9 more smoothly, improve the drainage efficiency, and at the same time reduce the accumulation of water in the water collection cavity 9, keeping the mold clean and dry.

[0036] Please see Figure 1 and Figure 2 Drain pipes 11 are provided on the lower sides of both sides of the base 1, and one end of each drain pipe 11 is connected to the water collection chamber 9. The drain pipes 11 can drain the water accumulated in the water collection chamber 9 in a timely manner, prevent moisture from corroding the equipment, keep the equipment dry and clean, and thus extend the service life of the equipment.

[0037] Working principle: During use, the hydraulic cylinder 3 is activated to move the upper mold 4 downwards. As the upper mold 4 moves, it causes the slider 13 to slide synchronously on the guide rod 12. The guide rod 12 ensures that the slider 13's direction of movement does not deviate. The sliding of the slider 13 compresses the buffer spring 14, which generates a counterforce to buffer the movement, preventing wear and damage caused by direct impact between the upper mold 4 and the lower mold 5 during mold closing. This extends the mold's service life. After the upper mold 4 and lower mold 5 are closed, the herringbone plate 16 engages with the herringbone groove 15, increasing the sealing between the upper mold 4 and lower mold 5. Simultaneously, the herringbone waterproof strip 17 engages with the strip groove 18, preventing leaks during cleaning. The water seeps into the interior of the upper mold 4 and the lower mold 5, ensuring a dry environment for them and improving the waterproof effect. Subsequently, the upper mold 4 and the lower mold 5 can be cleaned by external cleaning equipment. The water flow generated during cleaning is collected by the water collection tank 6 and enters the interior of the connecting pipe 7. The inclined baffles 8 on both sides of the interior of the connecting pipe 7 can guide the falling water flow, preventing it from falling directly and avoiding noise. After entering the water collection chamber 9, the water flow will be discharged through the drain pipe 11. The setting of the conical block 10 improves the drainage effect. Timely drainage reduces the corrosion of the equipment by water, helps to extend the service life of the mold and the base 1, and reduces replacement and maintenance costs.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waterproof structure for an inverter die-casting cavity, comprising a base (1), a support frame (2) provided on the rear side of the upper end of the base (1), a hydraulic cylinder (3) provided on the upper end inside the support frame (2), an upper mold (4) provided on the output end of the hydraulic cylinder (3), and a lower mold (5) provided at the middle position of the upper end of the base (1), characterized in that: It also includes a water collection tank (6), which is opened on both sides of the upper end of the base (1), and a water collection cavity (9) is opened on the lower side inside the base (1). The water collection tank (6) and the water collection cavity (9) are connected by a connecting pipe (7). It also includes a spiral groove (15), which is opened at the upper end inside the lower mold (5), and a spiral plate (16) is welded to the lower end of the upper mold (4), and the spiral plate (16) is adapted to the spiral groove (15).

2. The waterproof structure for an inverter die-casting cavity according to claim 1, characterized in that: The lower end of the groove (15) is bonded with a waterproof adhesive strip (17), and the lower end of the upper mold (4) is provided with an adhesive strip groove (18), which is compatible with the waterproof adhesive strip (17).

3. A waterproof structure for an inverter die-casting cavity according to claim 1, characterized in that: The connecting pipe (7) has several equally spaced inclined baffles (8) welded on both sides inside.

4. A waterproof structure for an inverter die-casting cavity according to claim 1, characterized in that: The outer side of the water collection tank (6) is provided with guide rods (12), and the upper and lower ends of the guide rods (12) are welded and fixed to the support frame (2) and the base (1) respectively. The upper mold (4) is welded with sliders (13) on both sides. The guide rods (12) all pass through the sliders (13), and the guide rods (12) slide with the sliders (13).

5. A waterproof structure for an inverter die-casting cavity according to claim 4, characterized in that: Each guide rod (12) has a buffer spring (14) fitted on its lower side. One end of each buffer spring (14) is connected to the slider (13), and the other end of each buffer spring (14) is connected to the base (1).

6. A waterproof structure for an inverter die-casting cavity according to claim 1, characterized in that: A cone-shaped block (10) is provided at the middle position of the lower end of the water-collecting cavity (9).

7. A waterproof structure for an inverter die-casting cavity according to claim 1, characterized in that: Drainage pipes (11) are provided on the lower sides of both sides of the base (1), and one end of each drainage pipe (11) is connected to the water collection cavity (9).

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