A die casting mold for a product that is not easily pulled

Abstract

The utility model discloses a kind of die-casting die of product not easy to pull injury, including fixed mould and ejector rod, the left side of fixed mould is connected with air pipe, and air pipe is threadedly connected with fixed mould, the inside right side of fixed mould is installed in ejector rod, and the left end of ejector rod is installed with electric telescopic rod, the inside left side of fixed mould is installed with air inlet, and air inlet is inlayed connection with fixed mould.Compared with prior art die-casting die, movable mould right shift opens, electric telescopic rod elongation makes ejector rod slightly eject, die casting in fixed mould is ejected outward;At this time, air inlet is aligned with air outlet, external air pump is injected into air inlet by air pipe, gas enters air outlet through air inlet, air pressure rises and compels sealing block to move to the inside of ejector rod, until air outlet is communicated with ejector rod opening, gas is ejected from ejector rod and fills the gap between fixed mould and die casting, and die casting is pushed out by uniform pressure, convenient to unload and prevent uneven force when taking out and pull injury.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically a die-casting mold that is less likely to damage products. Background Technology

[0002] Die casting molds are tools used to cast metal parts, specifically for completing the die casting process on a specialized die casting and forging machine. The basic die casting process involves molten metal being poured into the mold cavity at low or high speed. The mold has movable cavity surfaces, which are pressurized and forged as the molten metal cools, eliminating shrinkage cavities and porosity defects in the blank and achieving a forged, fragmented grain structure. This significantly improves the overall mechanical properties of the blank.

[0003] The existing patent, CN219074322U, entitled "An Easy-to-Demold Aluminum Alloy Die-casting Mold," relates to the field of die-casting mold technology and discloses an easy-to-demold aluminum alloy die-casting mold. It includes a device platform, with support columns fixedly installed at both ends of the front side of the upper surface of the platform, and a support plate fixedly installed on the rear side of the upper surface. A top plate is fixedly installed at the top of the two support columns and the support plate. This easy-to-demold aluminum alloy die-casting mold, through the inclusion of an inverted N-shaped plate, an electric telescopic rod, a pushing block, and a groove, effectively ejects the die-cast mold from the device platform, completing the demolding process between the mold and the mold groove. Simultaneously, the electric telescopic rod, push plate, connecting plate, electric push rod, and fixing clamp can compress and fix the mold, transporting it to the front of the device platform for easy removal and use by workers. The operation is simple and convenient. After the die-casting work is completed, it effectively completes the demolding and mold transportation, accelerating production efficiency.

[0004] The aforementioned device, by setting up an inverted N-shaped plate, an electric telescopic rod, a pushing block, and a groove, can effectively eject the die-cast mold from the device platform and complete the demolding process between the mold and the mold groove. However, when the die-cast part is ejected, the die-cast part is subjected to local stress, which can easily lead to tearing and deformation of the die-cast part, and cannot well meet people's usage needs. In view of the above situation, technical innovation is carried out on the basis of existing die-casting molds. Summary of the Invention

[0005] The purpose of this invention is to provide a die-casting mold that is less likely to damage products, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a die-casting mold that is less prone to damaging products, comprising a fixed mold and an ejector pin. An air pipe is connected to the left side of the fixed mold, and the air pipe is threadedly connected to the fixed mold. The ejector pin is installed inside the right side of the fixed mold, and an electric telescopic rod is installed at the left end of the ejector pin. An air inlet is installed inside the left side of the fixed mold, and the air inlet is embeddedly connected to the fixed mold. The electric telescopic rod extends to slightly push the ejector pin out, and the ejector pin slightly pushes the die-casting part in the fixed mold outward.

[0007] Furthermore, an air outlet is installed in the center of the push rod, and the air outlet is embedded in the push rod. When the electric telescopic rod extends, it slightly pushes the push rod out, at which point the air inlet and air outlet are aligned and connected to each other.

[0008] Furthermore, a sealing assembly is installed on the inner right side of the top rod, and the sealing assembly is slidably connected to the top rod. Two sets of sealing assemblies are provided to improve the stability of the device operation.

[0009] Furthermore, the sealing assembly includes a sealing block and a spring, and the spring is installed on one side of the sealing block. When the air pressure in the air outlet increases, the air pressure forces the sealing block to move into the push rod until the air outlet connects with the opening on the push rod. The gas then rushes out of the push rod and fills the gap between the fixed mold and the die casting.

[0010] Furthermore, a die-cast part is inlaid and connected to the right side of the fixed mold, and a moving mold is installed on the right side of the die-cast part.

[0011] Furthermore, a guide rod is installed on one side of the moving mold, and the guide rod is welded to the moving mold. The moving mold is precisely aligned and closed with the fixed mold through the guide rod to prevent errors.

[0012] Furthermore, a sprue is installed on the right side of the moving mold, and a feed port is installed at the upper end of the sprue. The feed port opens and closes according to the movement direction of the piston rod.

[0013] Furthermore, a piston rod is installed inside the injection cylinder, and the piston rod is slidably connected to the injection cylinder. The piston rod moves to the right to draw the raw material from the feed port into the injection cylinder. The amount of raw material taken out can be precisely controlled by controlling the amount of movement of the piston rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the moving mold moves towards the fixed mold, and the guide rod precisely aligns and closes with the fixed mold to prevent errors; the feed port opens, and the piston column moves to the right to draw the raw material from the feed port into the injection cylinder. The amount of raw material taken out is precisely controlled by controlling the movement of the piston column. After the feed port closes, the piston column moves to the left to inject the raw material into the cavities of the fixed mold and the moving mold, realizing precise quantitative control of die casting, reducing the defect rate and raw material loss; the moving mold moves to the right and opens, and the electric telescopic rod extends to slightly push out the ejector rod. The die-cast part in the fixed mold is ejected outward; at this time, the air inlet and outlet are aligned and connected, and the external air pump injects air into the air inlet through the air pipe. The gas enters the outlet through the air inlet, and the air pressure rises, pressing the sealing block to move inward into the ejector rod until the outlet is connected to the opening of the ejector rod. The gas rushes out of the ejector rod and fills the gap between the fixed mold and the die-cast part, applying pressure evenly to push the die-cast part out, which facilitates unloading and prevents uneven force and damage during removal; after the die-cast part is removed, the air pump stops injecting air, the air pressure drops, and the spring resets the sealing block to prevent the air hole from being blocked. 1. In this utility model, the moving mold moves to the right and opens, the electric telescopic rod extends and slightly pushes out the ejector rod, and the ejector rod slightly pushes out the die-casting part in the fixed mold. At this time, the air inlet and air outlet are aligned and connected to each other. The external air pump injects gas into the air inlet through the air pipe. The gas passes through the air inlet to the air outlet. As the injected gas increases, the air pressure in the air outlet rises. The air pressure forces the sealing block to move inward into the ejector rod until the air outlet connects with the opening on the ejector rod. The gas rushes out of the ejector rod and fills the gap between the fixed mold and the die-casting part, thereby applying pressure evenly and gradually pushing the die-casting part out of the fixed mold. This facilitates unloading and prevents the die-casting part from being pulled out due to uneven force. After the die-casting part is removed, the air pump stops injecting gas, the air pressure drops, and the spring resets the sealing block to prevent the air hole from being blocked. 2. In this invention, the moving mold moves towards the fixed mold, and the moving mold is precisely aligned and closed with the fixed mold via a guide rod to prevent errors. The feed port opens, and the piston moves to the right to draw the raw material from the feed port into the injection cylinder. By controlling the movement of the piston, the amount of raw material taken can be precisely controlled. The feed port then closes, and the piston moves to the left to inject the raw material in the injection cylinder into the cavities of the fixed and moving molds. This quantitative and precise control of the die-casting process reduces the defect rate and raw material loss. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a die-casting mold that is not easily damaged by tearing, according to the present invention. Figure 2 This is a three-dimensional cross-sectional view of the fixed mold of a die-casting mold that is not easily damaged by tearing, according to the present invention. Figure 3 This is a three-dimensional cross-sectional view of the ejector pin structure of a die-casting mold that is not prone to tearing of products according to this utility model.

[0016] In the diagram: 1. Fixed mold; 2. Moving mold; 3. Guide rod; 4. Injection cylinder; 5. Inlet; 6. Piston column; 7. Die casting part; 8. Air pipe; 9. Air inlet; 10. Electric telescopic rod; 11. Ejector rod; 12. Air outlet; 13. Sealing assembly; 1301. Sealing block; 1302. Spring. Detailed Implementation

[0017] like Figure 1-3 As shown, a die-casting mold that is less prone to damaging products includes a fixed mold 1 and an ejector rod 11. An air pipe 8 is connected to the left side of the fixed mold 1, and the air pipe 8 is threadedly connected to the fixed mold 1. The ejector rod 11 is installed inside the right side of the fixed mold 1, and an electric telescopic rod 10 is installed at the left end of the ejector rod 11. An air inlet 9 is installed inside the left side of the fixed mold 1, and the air inlet 9 is embedded in the fixed mold 1. An air outlet 12 is installed inside the middle of the ejector rod 11, and the air outlet 12 is embedded in the ejector rod 11. A sealing assembly 13 is installed inside the right side of the ejector rod 11, and the sealing assembly 13 is slidably connected to the ejector rod 11. The sealing assembly 13 includes a sealing block 1301 and a spring 1302, and the spring 1302 is installed on one side of the sealing block 1301. When the moving mold 2 smoothly moves to the right to open, the electric telescopic rod 10 extends synchronously, driving... The ejector rod 11 slowly extends, slightly ejecting the die-cast part 7 from the fixed mold 1. At this time, the air inlet 9 and the air outlet 12 are precisely aligned and connected. An external air pump injects gas into the air inlet 9 through the air pipe 8. The gas flows through the air inlet 9 and the air outlet 12 in sequence. As the amount of injected gas increases, the air pressure in the air outlet 12 continues to rise, forcing the sealing block 1301 to move into the ejector rod 11 until the air outlet 12 connects with the opening on the ejector rod 11. The gas then rushes out from the ejector rod 11, evenly filling the gap between the fixed mold 1 and the die-cast part 7, forming uniform pressure, and gradually pushing the die-cast part 7 out of the fixed mold 1, achieving efficient unloading and avoiding damage to the die-cast part 7 due to uneven force. After the die-cast part 7 is removed, the air pump stops injecting gas, the air pressure drops, and the spring 1302 quickly resets the sealing block 1301, effectively preventing the air hole from being blocked.

[0018] like Figure 1As shown, a die-cast part 7 is embedded and connected to the right side of the fixed mold 1, and a moving mold 2 is installed on the right side of the die-cast part 7. A guide rod 3 is installed on one side of the moving mold 2, and the guide rod 3 is welded to the moving mold 2. An injection cylinder 4 is installed on the right side of the moving mold 2, and a feed port 5 is installed at the upper end of the injection cylinder 4. A piston column 6 is installed inside the injection cylinder 4, and the piston column 6 is slidably connected to the injection cylinder 4. The moving mold 2 moves smoothly towards the fixed mold 1. With the precise guidance of the guide rod 3, it achieves complete closure with the fixed mold 1, effectively avoiding alignment errors. The feed port 5 then opens, and the piston column 6 moves to the right, drawing the raw material from the feed port 5 into the injection cylinder 4. By adjusting the displacement of the piston column 6, the dosage of raw material can be precisely controlled. After the material is extracted, the feed port 5 closes, and the piston column 6 moves back to the left, injecting the raw material in the injection cylinder 4 into the cavities of the fixed mold 1 and the moving mold 2, realizing precise quantitative control of the die-casting process, significantly reducing the defect rate and reducing raw material loss.

[0019] Working Principle: When using this die-casting mold that is less prone to damaging products, firstly, the moving mold 2 moves towards the fixed mold 1, achieving precise closure with the fixed mold 1 under the guidance of the guide rod 3, effectively avoiding errors. At this time, the feed port 5 opens, and the piston column 6 moves to the right, drawing raw material from the feed port 5 into the injection cylinder 4. By adjusting the movement distance of the piston column 6, the amount of raw material taken can be precisely controlled. Subsequently, the feed port 5 closes, and the piston column 6 moves to the left, injecting the raw material in the injection cylinder 4 into the cavities of the fixed mold 1 and the moving mold 2, achieving precise quantitative control of the die-casting process, thereby reducing the defect rate and raw material loss. Next, the moving mold 2 moves to the right and opens, the electric telescopic rod 10 extends, causing the ejector rod 11 to slightly push out, and the ejector rod 11 pushes the die-cast part 7 in the fixed mold 1 out slightly. At this time, the air inlet 9 and the air outlet 12 are aligned and connected to each other. An external air pump injects gas into the air inlet 9 through the air pipe 8, and the gas flows into the air outlet 12 through the air inlet 9. As more gas is injected, the air pressure in the vent 12 increases. This pressure causes the sealing block 1301 to move inward toward the ejector rod 11 until the vent 12 connects with the opening on the ejector rod 11. Gas then rushes out from the ejector rod 11, filling the gap between the fixed mold 1 and the die-cast part 7, thus applying pressure evenly and gradually pushing the die-cast part 7 out of the fixed mold 1. This facilitates unloading and prevents the die-cast part 7 from being damaged due to uneven force during removal. After the die-cast part 7 is removed, the air pump stops injecting gas, the air pressure drops, and the spring 1302 resets the sealing block 1301 to prevent the vent from becoming blocked.

Claims

1. A die-casting mold that is not prone to damaging products, comprising a fixed mold (1) and an ejector pin (11), characterized in that, An air pipe (8) is connected to the left side of the fixed mold (1), and the air pipe (8) is threaded to the fixed mold (1). The ejector rod (11) is installed on the right side inside the fixed mold (1), and an electric telescopic rod (10) is installed on the left end of the ejector rod (11). An air inlet (9) is installed on the left side inside the fixed mold (1), and the air inlet (9) is embedded to the fixed mold (1).

2. The die-casting mold for products that are not easily damaged by tearing according to claim 1, characterized in that, An air outlet (12) is installed in the middle of the inside of the top rod (11), and the air outlet (12) and the top rod (11) are connected by an embedded connection.

3. The die-casting mold for products that are not easily damaged by tearing, as described in claim 1, is characterized in that... A sealing component (13) is installed on the inside right side of the top rod (11), and the sealing component (13) and the top rod (11) are slidably connected.

4. The die-casting mold for products that are not easily damaged by tearing according to claim 3, characterized in that, The sealing assembly (13) includes a sealing block (1301) and a spring (1302), and the spring (1302) is installed on one side of the sealing block (1301).

5. A die-casting mold that is not prone to tearing of products according to claim 1, characterized in that, The right side of the fixed mold (1) is inlaid with a die casting (7), and the right side of the die casting (7) is equipped with a moving mold (2).

6. A die-casting mold for products that are not easily damaged by tearing, as described in claim 5, is characterized in that... A guide rod (3) is installed on one side of the moving mold (2), and the guide rod (3) is welded to the moving mold (2).

7. A die-casting mold for products that are not easily damaged by tearing, as described in claim 5, is characterized in that... The moving mold (2) is equipped with a sprue (4) on the right side, and the sprue (4) is equipped with a feed port (5) at the upper end.

8. A die-casting mold for products that are not easily damaged by tearing, as described in claim 7, is characterized in that... The injection cylinder (4) is equipped with a piston column (6), and the piston column (6) and the injection cylinder (4) are slidably connected.

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