Thin-walled product die-casting molding device

Abstract

This utility model discloses a die-casting molding device for thin-walled products, belonging to the technical field of die-casting molding devices. This die-casting molding device for thin-walled products includes a die-casting component, an injection component, and a material-receiving component. The die-casting component includes a base, with a fixed mold and a moving mold respectively disposed on both sides of the top surface of the base. The material-receiving component includes a horizontal plate, with an electric slide rail mounted on the side of the horizontal plate away from the base. An electric slider is slidably connected to the outside of the electric slide rail, and a vertical plate is mounted on the top surface of the electric slider. A connecting arm is rotatably connected to the outer wall of the vertical plate at the end away from the electric slider. A servo motor is mounted on the outer wall of the vertical plate, and the output end of the servo motor is fixedly connected to the connecting arm. An installation strip is mounted on the outer wall of the connecting arm at the end away from the vertical plate. The installation strip has two through holes. A pair of negative pressure pipes are mounted on one side of the outer wall of the installation strip, and a pair of air pumps are mounted on the other side of the outer wall of the installation strip. The air pumps at the same level have their air inlets, through holes, and negative pressure pipes connected together.

Description

Technical Field

[0001] This utility model relates to the technical field of die casting molding equipment, specifically a die casting molding equipment for thin-walled products. Background Technology

[0002] In modern manufacturing, the demand for thin-walled metal products (such as electronic component housings and lightweight automotive parts) is increasing due to their advantages of light weight, high material utilization, and compact structure. These products are typically manufactured using die casting, a process that involves injecting molten metal under high pressure into a mold cavity, which then cools and solidifies, resulting in high production efficiency and good forming precision.

[0003] Based on the above, the inventors have discovered the following problems: In the current process of material handling after die casting of thin-walled products, manual material handling is required. Since thin-walled products have thin walls and low strength after molding, and the product surface still has a high temperature (usually 200-300℃) after the mold is opened, manual material handling is not only prone to product deformation and damage due to improper operation, but also poses a safety hazard of high temperature burns.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a die-casting molding device for thin-walled products, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide a die-casting molding apparatus for thin-walled products to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A thin-walled product die-casting molding apparatus includes a die-casting component, an injection component, and a material handling component. The die-casting component includes a base, with a fixed mold and a moving mold respectively disposed on both sides of the top surface of the base. The material handling component includes a horizontal plate mounted on one side of the outer wall of the base. An electric slide rail is mounted on the side of the horizontal plate away from the base. An electric slider is slidably connected to the outside of the electric slide rail. A vertical plate is mounted on the top surface of the electric slider. A connecting arm is rotatably connected to the outer wall of the vertical plate at the end away from the electric slider. A servo motor is mounted on the outer wall of the vertical plate. The output end of the servo motor is fixedly connected to the connecting arm. An installation strip is mounted on the outer wall of the connecting arm at the end away from the vertical plate. The installation strip has two through holes. A pair of negative pressure pipes are mounted on one side of the outer wall of the installation strip. A pair of air pumps are mounted on the other side of the outer wall of the installation strip. The air pumps at the same level, their through holes, and their negative pressure pipes are interconnected.

[0008] Furthermore, a mounting hole is provided at the center of the fixed mold, and the injection assembly includes an injection tube installed in the mounting hole. An injection head is installed at the end of the injection tube near the moving mold. The injection head is connected to the injection tube. A pair of injection holes are provided on the injection head and are arranged opposite to each other. A baffle is installed on the outer wall of the injection head near the injection holes, and one end of the baffle is in an inwardly concave arc shape.

[0009] The beneficial effects of adopting the above-mentioned further solution are that a pair of oppositely arranged injection holes can inject molten metal into two mold cavities in two separate paths, thereby facilitating the die casting of two thin-walled products and improving molding efficiency; the baffle has an inwardly concave arc end that fits against the inner wall of the injection hole of the moving mold to form a circular sealing structure, which can prevent molten metal from overflowing from the gap between the injection hole and the injection head, and at the same time guide the molten metal to flow smoothly into the mold cavity along the injection channel.

[0010] Furthermore, the outer wall of the baffle is coated with a release agent, a piston is slidably installed inside the injection tube, an electric telescopic rod is installed at the end of the injection tube away from the injection head, the telescopic end of the electric telescopic rod passes through the injection tube, the telescopic end of the electric telescopic rod is fixedly connected to one end of the piston, and a feed port is provided on the injection tube.

[0011] The beneficial effects of adopting the above-mentioned further solution are that the release agent on the outer wall of the baffle can reduce the adhesion between the molten metal and the baffle, making it easier for the injection head to separate from the solidified metal when the mold is opened, and reducing the risk of deformation of thin-walled products due to adhesion; the inlet can be connected to the discharge pipe of the melting furnace to realize continuous material supply; the liquid raw material is injected into the injection pipe through the inlet, the electric telescopic rod pushes the piston, and the piston pushes the liquid raw material into the mold cavity and holds the pressure for a period of time, so that the liquid raw material cools and forms in the mold cavity.

[0012] Furthermore, the bottom end of the fixed mold is fixedly connected to the top surface of the base, and a cylinder is installed on one side of the outer wall of the base, with the movable end of the cylinder fixedly connected to the outer wall of the moving mold.

[0013] The beneficial effects of adopting the above-mentioned further solution are that the fixed mold and the base are fixedly connected, which can avoid the displacement of the fixed mold when the mold is closed, ensure the positioning accuracy of the punch and the mold cavity, and reduce the dimensional deviation of thin-walled products; the cylinder drives the moving mold to move, thereby making the moving mold and the fixed mold close (open the mold).

[0014] Furthermore, a pair of punches are installed on the side of the fixed mold near the moving mold, and the pair of punches are arranged sequentially from top to bottom. A pair of mold cavities are opened inside the side of the moving mold near the fixed mold, and the pair of mold cavities are arranged sequentially from top to bottom. There is a gap between the outer wall of the punch and the inner wall of the mold cavity.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that two sets of punches and cavities can simultaneously die-cast two thin-walled products, such as the gap between the punch and the cavity being able to accommodate the solidification shrinkage of the thin-walled product, and the gap between the punch and the cavity being the thickness of the thin-walled product.

[0016] Furthermore, the moving mold has an injection hole inside a pair of mold cavities. The inner wall of the injection hole fits against the outer wall of the injection head and the baffle. The inner wall of the injection hole and the outer wall of the baffle at one end, which is concave inward, form an injection channel.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the close fit between the inner wall of the injection hole and the injection head and baffle can form a closed injection channel to avoid leakage of molten metal. The injection channel formed by the inner wall of the injection hole and the outer wall of the baffle at the concave arc end facilitates the passage of molten metal.

[0018] Furthermore, the fixed mold, moving mold, injection tube, injection head, baffle, and negative pressure tube are all made of metal.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the fixed mold, moving mold, injection tube, injection head, baffle, and negative pressure tube are all made of metal, which can withstand the high temperature during die casting.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: After the thin-walled product is cooled and formed, and the moving mold and fixed mold are opened, in order to avoid residual heat on the surface of the thin-walled product, the servo motor drives the connecting arm to rotate, so that a pair of negative pressure tubes are aligned with the two mold cavities respectively. Then, the electric slider slides along the electric slide rail to the corresponding position of the mold, so that the pair of negative pressure tubes are aligned with the surface of the thin-walled product. The air pump is started, and negative pressure is generated in the negative pressure tubes through the through hole, which adsorbs the thin-walled product. The electric slide rail drives the electric slider to move away from the moving mold, so that the thin-walled product is taken out from the mold cavity. Then, the servo motor resets the connecting arm again, the air pump stops working, the negative pressure disappears, and the thin-walled product is removed from the negative pressure tube, thus completing the material removal. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of the thin-walled product die-casting molding device provided by this utility model;

[0022] Figure 2 A three-dimensional structural schematic diagram of the material handling component of the thin-walled product die-casting molding device provided by this utility model;

[0023] Figure 3 A three-dimensional structural schematic diagram of the injection assembly of the thin-walled product die-casting molding device provided by this utility model;

[0024] Figure 4 A front cross-sectional view of the injection assembly of the thin-walled product die-casting molding device provided by this utility model;

[0025] Figure 5 A frontal cross-sectional schematic diagram of the fixed mold and moving mold of the thin-walled product die-casting molding device provided by this utility model.

[0026] In the diagram: 1. Die-casting assembly; 11. Base; 12. Fixed mold; 13. Moving mold; 14. Injection hole; 15. Cylinder; 2. Injection assembly; 21. Injection tube; 22. Feed port; 23. Injection head; 24. Baffle; 25. Electric telescopic rod; 26. Piston; 3. Material handling assembly; 31. Horizontal plate; 32. Electric slide rail; 33. Vertical plate; 34. Servo motor; 35. Connecting arm; 36. Mounting strip; 37. Negative pressure pipe; 38. Air pump. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5This utility model provides a technical solution: a thin-walled product die-casting molding device, including a die-casting component 1, an injection component 2, and a material-receiving component 3. The die-casting component 1 includes a base 11, with a fixed mold 12 and a moving mold 13 respectively arranged on both sides of the top surface of the base 11. The material-receiving component 3 includes a horizontal plate 31, which is installed on one side of the outer wall of the base 11. An electric slide rail 32 is installed on the side of the horizontal plate 31 away from the base 11. An electric slider is slidably connected to the outside of the electric slide rail 32. A vertical plate 33 is installed on the top surface of the electric slider. A connecting arm 35 is rotatably connected to the outer wall of the vertical plate 33 at the end away from the electric slider. A servo motor 34 is installed on the outer wall of the vertical plate 33. The output end of the servo motor 34 is fixedly connected to the connecting arm 35. An installation strip 36 is installed on the outer wall of the connecting arm 35 at the end away from the vertical plate 33. The installation strip 36 has two through holes. An installation strip 36 is installed on one side of the outer wall of the installation strip 36. There is a pair of negative pressure pipes 37, and a pair of air pumps 38 are installed on the other side of the outer wall of the mounting strip 36. The air inlet end, through hole and negative pressure pipe 37 of the air pump 38 are connected at the same level. After the thin-walled product is cooled and formed, after the moving mold 13 and the fixed mold 12 are opened, in order to avoid the surface of the thin-walled product remaining with residual heat, the servo motor 34 drives the connecting arm 35 to rotate, so that the pair of negative pressure pipes 37 are aligned with the two mold cavities respectively. Then, the electric slider slides along the electric slide rail 32 to the corresponding position of the mold, so that the pair of negative pressure pipes 37 are aligned with the surface of the thin-walled product. The air pump 38 is started, and negative pressure is generated in the negative pressure pipe 37 through the through hole, which adsorbs the thin-walled product. The electric slide rail 32 drives the electric slider to move away from the moving mold 13 so that the thin-walled product is taken out from the mold cavity. Then, the connecting arm 35 is reset again by the servo motor 34, the air pump 38 stops working, the negative pressure disappears, and the thin-walled product is removed from the negative pressure pipe 37 to complete the material removal.

[0029] 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.

[0030] Please see Figures 1-5The present invention provides the following technical solution: A mounting hole is provided at the center of the fixed mold 12. The injection assembly 2 includes an injection tube 21, which is installed in the mounting hole. An injection head 23 is installed at the end of the injection tube 21 near the moving mold 13. The injection head 23 is connected to the injection tube 21. A pair of injection holes are provided on the injection head 23, which are arranged opposite to each other. A baffle 24 is installed on the outer wall of the injection head 23 near the injection holes. One end of the baffle 24 is an inwardly concave arc shape. A release agent is coated on the outer wall of the baffle 24. A piston 26 is slidably arranged inside the injection tube 21. An electric telescopic rod 25 is installed at the end of the injection tube 21 away from the injection head 23. The telescopic end of the electric telescopic rod 25 passes through the injection tube 21. The telescopic end of the material pipe 21 and the electric telescopic rod 25 is fixedly connected to one end of the piston 26. The material pipe 21 is provided with a feed port 22. Liquid raw materials are injected into the material pipe 21 through the feed port 22. The electric telescopic rod 25 pushes the piston 26, and the piston 26 pushes the liquid raw materials into the injection head 23. A pair of oppositely arranged injection holes can divide the molten metal liquid into two paths and inject it into two mold cavities respectively, which facilitates the die casting of two thin-walled products and improves the molding efficiency. The baffle 24 has an inwardly concave arc end that fits against the inner wall of the injection hole 14 of the moving mold 13 to form a circular sealing structure, which can prevent the molten metal liquid from overflowing from the gap between the injection hole 14 and the injection head 23, and at the same time guide the molten metal liquid to flow smoothly into the mold cavity along the injection channel.

[0031] 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.

[0032] Please see Figures 1-5 The present invention provides the following technical solution: the bottom end of the fixed mold 12 is fixedly connected to the top surface of the base 11; a cylinder 15 is installed on one side of the outer wall of the base 11; the movable end of the cylinder 15 is fixedly connected to the outer wall of the moving mold 13; a pair of punches are installed on the side of the fixed mold 12 near the moving mold 13, the pair of punches being arranged sequentially from top to bottom; a pair of mold cavities are opened inside the side of the moving mold 13 near the fixed mold 12, the pair of mold cavities being arranged sequentially from top to bottom; and a gap exists between the outer wall of the punches and the inner wall of the mold cavities. In the gap, the moving mold 13 has an injection hole 14 inside the pair of mold cavities. The inner wall of the injection hole 14 fits against the outer wall of the injection head 23 and the baffle 24. The inner wall of the injection hole 14 and the outer wall of the baffle 24 at one end of the concave arc form an injection channel. The fixed mold 12, the moving mold 13, the injection tube 21, the injection head 23, the baffle 24, and the negative pressure tube 37 are all made of metal. The cylinder 15 drives the moving mold 13 to move, thereby causing the moving mold 13 to close and open with the fixed mold 12.

[0033] Specifically, the working principle of this thin-walled product die-casting molding device is as follows: During use, the fixed mold 12 and the moving mold 13 are in a separated state; the electric slider of the material taking component 3 is located at the initial end of the electric slide rail 32, the connecting arm 35 is in a retracted standby state, and the negative pressure pipe 37 is not activated; the moving mold 13 is driven to move towards the fixed mold 12 and close by the starting cylinder 15, and the fixed mold 12 and the moving mold 13 form a closed cavity; the liquid raw material is injected into the injection pipe 21 through the inlet 22, the electric telescopic rod 25 pushes the piston 26, and the piston 26 pushes the liquid raw material into the injection head 23. A pair of oppositely arranged injection holes can divide the molten metal liquid into two paths and inject it into the two mold cavities respectively, thereby facilitating the die-casting molding of two thin-walled products and improving molding efficiency; the concave arc end of the baffle 24 fits against the inner wall of the injection hole 14 of the moving mold 13 to form a circular sealing structure. The structure prevents molten metal from overflowing from the gap between the injection hole 14 and the injection head 23, while guiding the molten metal to flow smoothly into the mold cavity along the injection channel and holding it under pressure for a period of time, allowing the liquid raw material to cool and solidify into a thin-walled product within the mold cavity. The cylinder 15 drives the moving mold 13 to separate it from the fixed mold 12, exposing the formed thin-walled product. The servo motor 34 drives the connecting arm 35 to rotate and adjust the angle of the mounting strip 36. The electric slider slides along the electric slide rail 32 to the corresponding position on the mold, aligning a pair of negative pressure tubes 37 with the surface of the thin-walled product. The air pump 38 starts, generating negative pressure in the negative pressure tubes 37 through the through hole, adsorbing the thin-walled product. The electric slide rail 32 drives the electric slider to move, removing the thin-walled product from the mold cavity. Subsequently, the connecting arm 35 resets, the air pump 38 stops working, the negative pressure disappears, and the thin-walled product detaches from the negative pressure tubes 37, completing the material removal process.

[0034] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A die-casting molding apparatus for thin-walled products, characterized in that, The assembly includes a die-casting component (1), an injection component (2), and a material-retrieving component (3). The die-casting component (1) includes a base (11), on which a fixed mold (12) and a moving mold (13) are respectively provided on both sides of the top surface of the base (11). The material-retrieving component (3) includes a horizontal plate (31), which is installed on one side of the outer wall of the base (11). An electric slide rail (32) is installed on the side of the horizontal plate (31) away from the base (11). An electric slider is slidably connected to the outside of the electric slide rail (32). A vertical plate (33) is installed on the top surface of the electric slider. The vertical plate (33) is located on the side away from the electric slider. A connecting arm (35) is rotatably connected to the outer wall of the end. A servo motor (34) is installed on the outer wall of the upright plate (33). The output end of the servo motor (34) is fixedly connected to the connecting arm (35). An installation strip (36) is installed on the outer wall of the connecting arm (35) at the end away from the upright plate (33). Two through holes are provided on the installation strip (36). A pair of negative pressure pipes (37) are installed on one side of the outer wall of the installation strip (36). A pair of air pumps (38) are installed on the other side of the outer wall of the installation strip (36). The air inlet, through hole and negative pressure pipe (37) of the air pumps (38) at the same level are connected.

2. The thin-walled product die-casting apparatus according to claim 1, characterized in that, The fixed mold (12) has an installation hole at its internal center. The injection assembly (2) includes an injection tube (21) which is installed in the installation hole. An injection head (23) is installed at one end of the injection tube (21) near the moving mold (13). The injection head (23) is connected to the injection tube (21). A pair of injection holes are provided on the injection head (23), which are arranged opposite to each other. A baffle (24) is installed on the outer wall of the injection head (23) near the injection hole. One end of the baffle (24) is an inwardly concave arc shape.

3. The thin-walled product die-casting apparatus according to claim 2, characterized in that, The outer wall of the baffle (24) is coated with a release agent. A piston (26) is slidably installed inside the injection tube (21). An electric telescopic rod (25) is installed at the end of the injection tube (21) away from the injection head (23). The telescopic end of the electric telescopic rod (25) passes through the injection tube (21). The telescopic end of the electric telescopic rod (25) is fixedly connected to one end of the piston (26). An inlet (22) is provided on the injection tube (21).

4. The thin-walled product die-casting apparatus according to claim 1, characterized in that, The bottom end of the fixed mold (12) is fixedly connected to the top surface of the base (11), and a cylinder (15) is installed on one side of the outer wall of the base (11). The movable end of the cylinder (15) is fixedly connected to the outer wall of the moving mold (13).

5. The thin-walled product die-casting apparatus according to claim 4, characterized in that, A pair of punches are installed on the side of the fixed mold (12) near the moving mold (13). The pair of punches are arranged sequentially from top to bottom. A pair of mold cavities are opened inside the side of the moving mold (13) near the fixed mold (12). The pair of mold cavities are arranged sequentially from top to bottom. There is a gap between the outer wall of the punch and the inner wall of the mold cavity.

6. The thin-walled product die-casting apparatus according to claim 5, characterized in that, The moving mold (13) has an injection hole (14) inside a pair of mold cavities. The inner wall of the injection hole (14) is in contact with the outer wall of the injection head (23) and the baffle (24). The inner wall of the injection hole (14) and the outer wall of the baffle (24) at one end, which is concave inward, form an injection channel.

7. The thin-walled product die-casting apparatus according to claim 1, characterized in that, The fixed mold (12), moving mold (13), injection tube (21), injection head (23), baffle (24), and negative pressure tube (37) are all made of metal.

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