Integrated die-casting double-extrusion device

By using an integrated die-casting dual extrusion device, the mold is tightly fitted through hydraulic and mechanical extrusion, which solves the problem of internal shrinkage cavities in die-cast parts and improves the overall strength and density of metal parts.

CN224058664UActive Publication Date: 2026-03-31KUNSHAN XUANJIE AUTOMATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing integrated die-casting equipment, the molds are pressed together under high pressure during die casting, which causes shrinkage cavities inside the die-cast metal parts, resulting in low overall strength performance.

Method used

By designing an integrated die-casting dual extrusion device, hydraulically driven molds are brought into contact with each other, and mechanical extrusion is used to make the molds fit more tightly, eliminating shrinkage cavities and improving the internal structural compactness of the parts.

Benefits of technology

It eliminates shrinkage cavities in die-cast parts, improves overall strength performance, and enhances the density and strength of metal parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of integrated die-casting devices, in particular to an integrated die-casting double-extrusion device which comprises a device body, a fixing base is fixedly installed on the right side of the top end of the device body, a driving base is fixedly installed on the left side of the top end of the device body, and a die-casting mechanism is slidably connected between the fixing base and the driving base. And an extrusion mechanism is slidably connected to the left side of the die-casting mechanism and penetrates into the die-casting mechanism. According to the utility model, through the mutual cooperation of the internal parts of the die-casting mechanism, the dies can be attached to each other, the sealing performance of the attached part between the dies is improved, the contact between liquid metal and air is reduced, the heat loss is reduced, and through the mutual cooperation of the internal parts of the extrusion mechanism and the mechanical extrusion mode, the dies are pushed to be attached more tightly; and the liquid metal between the dies is extruded, so that the internal structure of the liquid metal is more compact during forming, and therefore, shrinkage cavities are eliminated, and the overall strength performance of parts is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of three-phase separator devices, specifically to an integrated die-casting dual extrusion device. Background Technology

[0002] Die casting is a metal casting process characterized by applying high pressure to molten metal using the cavity of a mold. The mold is usually made of a higher strength alloy. This process is somewhat similar to injection molding. Most die castings do not contain iron, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine is required.

[0003] A search revealed an invention patent with publication number CN109365780B, which discloses an integrated device for preparing semi-solid slurry and extrusion casting of bushing-type parts, belonging to the field of materials science and technology. This integrated device for preparing semi-solid slurry and extrusion casting of bushing-type parts includes a casting device, an extrusion device, and a stirring core device. The casting device includes a mold cover plate, a casting mold outer box, a medium-frequency induction melting device, a casting forming mold fixing seat, and a casting forming mold. The extrusion device includes an extrusion press worktable and an extrusion punch. The stirring core device includes a hydraulic press upper beam plate, a motor, a reduction transmission device, a thrust ball bearing, a stirring core, a rotating device fixing seat, and a rotating device support frame. This device not only significantly shortens the process flow but also reduces energy consumption and improves economic efficiency.

[0004] Although the aforementioned patents utilize the cooperation of the hydraulic press upper beam plate, electric motor, reduction transmission device, thrust ball bearing, stirring core, rotating device fixed seat, and rotating device support frame to significantly shorten the process flow, reduce energy consumption, and improve economy, the integrated die-casting device only involves the molds fitting together and filling under high pressure to ensure dense molding when die-casting liquid metal. However, the metal parts formed by this die casting have certain shrinkage cavities inside, resulting in low strength performance of the entire part.

[0005] Therefore, it is necessary to propose an integrated die-casting dual extrusion device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an integrated die-casting dual extrusion device. Through the cooperation between the internal parts of the extrusion mechanism, after the molds are fitted together, mechanical extrusion is used to push the molds to fit more tightly and to squeeze the liquid metal between the molds. This makes the internal structure of the liquid metal more compact during forming, thereby eliminating shrinkage cavities and improving the overall strength performance of the die-cast parts. This solves the problem in the prior art where integrated die-casting devices only fit the molds together and fill the mold under high pressure to ensure dense forming, but the die-cast metal parts have certain shrinkage cavities, resulting in lower overall strength performance of the parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated die-casting dual extrusion device, comprising a device body, a fixed seat installed and fixed on the right side of the top of the device body, a drive seat installed and fixed on the left side of the top of the device body, a die-casting mechanism slidably connected between the fixed seat and the drive seat, and an extrusion mechanism slidably connected to the left side of the die-casting mechanism and extending through the interior of the die-casting mechanism;

[0008] The die-casting mechanism includes a movable mold, which is slidably connected to the top of the main body of the device and located between the fixed seat and the drive seat. The right side of the movable mold is mechanically connected to a die-casting module and a sealing plate is mechanically connected to the right side of the movable mold and sleeved with the outer wall of the die-casting module. The left side of the movable mold is mechanically connected to a hydraulic rod and located between the drive seat and the movable mold.

[0009] The extrusion mechanism includes an extrusion plate, which is slidably connected to the left side of the movable mold. Multiple hydraulic rods are mechanically connected between the left side of the extrusion plate and the drive seat. A connecting ring is slidably connected to the left side of the movable mold and extends into the interior of the movable mold. A connecting column is mechanically connected between the right side of the connecting ring and the die-casting module and is slidably connected to the interior of the movable mold. A high-torque spring is sleeved on the outer wall of the connecting column and is located between the right side of the connecting ring and the movable mold.

[0010] Preferably, the die-casting mechanism further includes a die-casting mold, which is bolted to the left side of the fixed seat and sleeved with the outer wall of the die-casting module and the sealing plate. The top of the die-casting mold is mechanically connected to multiple material conveying pipes that pass through the die-casting mold to the die-casting module. A cooling circulation pipe is installed and fixed on the right side of the fixed seat and passes through the fixed seat to the interior of the cooling circulation pipe.

[0011] Preferably, a hydraulic cylinder that drives the second hydraulic rod and the first hydraulic rod is fixedly installed inside the drive seat, and a sliding rod that matches the movable mold and the extrusion plate is mechanically connected between the fixed seat and the drive seat.

[0012] Preferably, the die-casting mold has a die-casting cavity on the left side that matches the die-casting module, and there is a certain gap between the die-casting mold and the die-casting module when they fit together. The outer left wall of the die-casting mold has a sealing groove that matches the sealing plate.

[0013] Preferably, the top of the die-casting module and the die-casting mold are provided with multiple injection holes that match the material conveying pipe, and a water tank and a water pump that drive the cooling circulation pipe are installed and fixed on the right side of the fixed base.

[0014] Preferably, the movable mold has a support groove inside that matches the connecting ring, and the movable mold has a sliding groove inside that matches the connecting column and the die-casting module.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. The hydraulic cylinder inside the drive seat drives the first hydraulic rod, which in turn moves the movable mold. This movement of the movable mold causes the die-casting module to move, bringing it into contact with the die-casting mold and penetrating into the die-casting mold. This creates a die-casting cavity between the die-casting mold and the die-casting module. Both the die-casting module and the die-casting mold have multiple injection holes at their tops that match the material delivery pipe. This allows the material delivery pipe to quickly and evenly transport the liquid metal into the die-casting module and the die-casting mold through these injection holes. At the same time, a sealing groove matching the sealing plate is provided on the left outer wall of the die-casting mold to improve the sealing at the joint between the molds. This reduces the contact between the liquid metal and the air, thereby reducing heat loss. This allows the movable mold and the die-casting mold to fit together, completing the filling of the liquid metal under high pressure.

[0017] 2. The hydraulic cylinder inside the drive unit drives the second hydraulic rod, which pushes the extrusion plate to fit against the movable mold and squeezes the connecting ring on the left side of the movable mold. This forces the connecting ring to compress the large torsion spring, causing it to move. The movement of the connecting ring moves the connecting column, which in turn moves the die-casting module. This changes the cavity between the die-casting module and the die-casting mold, allowing for a tighter fit between them through mechanical extrusion. This also squeezes the liquid metal between the die-casting module and the die-casting mold, making the internal structure of the liquid metal more compact during forming. This eliminates shrinkage cavities and improves the overall strength of the die-cast parts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0020] Figure 2 This is a cross-sectional structural diagram of the die-casting mold of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the movable mold of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Main body of the device; 101. Fixed base; 102. Drive base; 2. Die-casting mechanism; 201. Die-casting mold; 202. Material conveying pipe; 203. Movable mold; 204. No. 1 hydraulic rod; 205. Die-casting module; 206. Cooling circulation pipe; 207. Sealing plate; 3. Extrusion mechanism; 301. Extrusion plate; 302. No. 2 hydraulic rod; 303. Connecting ring; 304. Connecting column; 305. High torsion spring. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The integrated die-casting dual extrusion device shown includes a device body 1, a fixed seat 101 is installed and fixed on the right side of the top of the device body 1, a drive seat 102 is installed and fixed on the left side of the top of the device body 1, a die-casting mechanism 2 is slidably connected between the fixed seat 101 and the drive seat 102, and an extrusion mechanism 3 is slidably connected to the left side of the die-casting mechanism 2 and extends into the interior of the die-casting mechanism 2.

[0028] The die-casting mechanism 2 includes a movable mold 203, which is slidably connected to the top of the main body 1 of the device and located between the fixed seat 101 and the drive seat 102. The right side of the movable mold 203 is mechanically connected to the die-casting module 205, and the right side of the movable mold 203 is mechanically connected to the sealing plate 207, which is sleeved with the outer wall of the die-casting module 205. The left side of the movable mold 203 is mechanically connected to the first hydraulic rod 204, which is located between the drive seat 102 and the movable mold 203.

[0029] The extrusion mechanism 3 includes an extrusion plate 301, which is slidably connected to the left side of the movable mold 203. Multiple hydraulic rods 302 are mechanically connected between the left side of the extrusion plate 301 and the drive seat 102. A connecting ring 303 is slidably connected to the left side of the movable mold 203 and extends into the interior of the movable mold 203. A connecting column 304 is mechanically connected between the right side of the connecting ring 303 and the die-casting module 205 and is slidably connected into the interior of the movable mold 203. A large torsion spring 305 is sleeved on the outer wall of the connecting column 304 and is located between the right side of the connecting ring 303 and the movable mold 203.

[0030] Through the cooperation of the internal parts of the die-casting mechanism 2, the molds can be fitted together, and the molds can be filled under high pressure. This improves the sealing of the mold joints, thereby reducing the contact between the liquid metal and the air and reducing heat loss. Through the cooperation of the internal parts of the extrusion mechanism 3, after the molds are fitted together, mechanical extrusion is used to push the molds to fit more tightly and extrude the liquid metal between the molds. This makes the internal structure of the liquid metal more compact during forming, thereby eliminating shrinkage cavities and improving the overall strength performance of the die-cast parts.

[0031] Refer to the instruction manual appendix Figure 1-5 The die-casting mechanism 2 also includes a die-casting mold 201, which is bolted to the left side of the fixed base 101 and sleeved with the outer wall of the die-casting module 205 and the sealing plate 207. The top of the die-casting mold 201 is mechanically connected to multiple material conveying pipes 202, which pass through the die-casting mold 201 to the die-casting module 205. A cooling circulation pipe 206 is installed and fixed on the right side of the fixed base 101, which passes through the fixed base 101 to the interior of the cooling circulation pipe 206. Through the mutual cooperation between the internal parts of the die-casting mechanism 2, the cooling circulation pipe 206 can complete the cooling and forming of the die-casting parts inside the die-casting mold 201.

[0032] Refer to the instruction manual appendix Figure 1-5 The drive base 102 is internally equipped with a hydraulic cylinder that drives the second hydraulic rod 302 and the first hydraulic rod 204 to move. The fixed base 101 and the drive base 102 are mechanically connected by a sliding rod that matches the movable mold 203 and the extrusion plate 301. The hydraulic cylinder that drives the second hydraulic rod 302 and the first hydraulic rod 204 to move is internally equipped with a hydraulic cylinder that drives the second hydraulic rod 302 and the first hydraulic rod 204 to move. The fixed base 101 and the drive base 102 are mechanically connected by a sliding rod that matches the movable mold 203 and the extrusion plate 301, so that the first hydraulic rod 204 and the second hydraulic rod 302 can drive the movable mold 203 and the extrusion plate 301 to slide between the fixed base 101 and the drive base 102 respectively.

[0033] Refer to the instruction manual appendix Figure 1-5The die-casting mold 201 has a die-casting cavity on its left side that matches the die-casting module 205, and there is a certain gap between the die-casting mold 201 and the die-casting module 205. The outer left wall of the die-casting mold 201 has a sealing groove that matches the sealing plate 207. The die-casting cavity on the left side of the die-casting mold 201 that matches the die-casting module 205, and the certain gap between the die-casting mold 201 and the die-casting module 205, facilitates the fitting of the die-casting mold 201 and the die-casting module 205. Liquid metal is transported to the die-casting mold 201 and the die-casting module 205 through the material conveying pipe 202, thereby completing the die-casting process.

[0034] Refer to the instruction manual appendix Figure 1-5 The die-casting module 205 and the die-casting mold 201 both have multiple injection holes at their top ends that match the material conveying pipe 202. A water tank and a water pump that drive the cooling circulation pipe 206 are installed and fixed on the right side of the fixed base 101. The multiple injection holes at the top ends of the die-casting module 205 and the die-casting mold 201 that match the material conveying pipe 202 facilitate the rapid and uniform delivery of liquid metal to the die-casting module 205 and the die-casting mold 201 through the multiple injection holes.

[0035] Refer to the instruction manual appendix Figure 1-5 The movable mold 203 has a support groove inside that matches the connecting ring 303, and a sliding groove inside that matches the connecting column 304 and the die-casting module 205. The support groove inside the movable mold 203 that matches the connecting ring 303, and the sliding groove inside the movable mold 203 that matches the connecting column 304 and the die-casting module 205, make it easy for the connecting ring 303 to drive the die-casting module 205 to move inside the movable mold 203 via the connecting column 304.

[0036] The working principle of this practical application is as follows:

[0037] Refer to the instruction manual appendix Figure 1-5The hydraulic cylinder inside the drive seat 102 drives the first hydraulic rod 204, which in turn moves the movable mold 203. This movement of the movable mold 203 then moves the die-casting module 205, causing it to fit against the die-casting mold 201 and penetrate into it. This creates a die-casting cavity between the die-casting mold 201 and the die-casting module 205. Both the die-casting module 205 and the die-casting mold 201 have multiple openings at their tops that match the material delivery pipe 202. Multiple injection holes facilitate the rapid and uniform delivery of liquid metal from the material conveying pipe 202 to the die-casting module 205 and the die-casting mold 201. At the same time, a sealing groove matching the sealing plate 207 is provided on the left outer wall of the die-casting mold 201 to improve the sealing performance at the joint between the molds, thereby reducing the contact between the liquid metal and the air and reducing heat loss. This allows the movable mold 203 and the die-casting mold 201 to fit together and complete the filling of liquid metal under high pressure.

[0038] Refer to the instruction manual appendix Figure 1-5 The hydraulic cylinder inside the drive seat 102 drives the second hydraulic rod 302, which pushes the extrusion plate 301 to fit against the movable mold 203. The extrusion plate 301 is then pressed against the connecting ring 303 on the left side of the movable mold 203. This causes the connecting ring 303 to compress the large torsion spring 305, which in turn moves the connecting column 304. The moving column 304 then moves the die-casting module 205, causing a change in the mold cavity between the die-casting module 205 and the die-casting mold 201. This mechanical extrusion pushes the die-casting module 205 and the die-casting mold 201 to fit more tightly together, and also compresses the liquid metal between them. This makes the internal structure of the liquid metal more compact during forming, thus eliminating shrinkage cavities and improving the overall strength of the die-cast parts. At the same time, a water pump drives the cooling circulation pipe 206 to cool the die-casting mold 201, completing the cooling and forming of the metal parts inside the die-casting mold 201 and the die-casting module 205.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated die-casting double extrusion device, characterized by: Including device body (1), the right side of the top of device body (1) is fixedly installed with fixed seat (101), the left side of the top of device body (1) is fixedly installed with drive seat (102), slidingly connected with die casting mechanism (2) between fixed seat (101) and drive seat (102), the left side of die casting mechanism (2) is slidingly connected with extrusion mechanism (3), and it is connected to the inside of die casting mechanism (2); The die casting mechanism (2) includes a movable mold (203), which is slidingly connected to the top of the device body (1) and located between the fixed seat (101) and the drive seat (102). The right side of the movable mold (203) is mechanically connected with a die casting module (205). The right side of the movable mold (203) is mechanically connected with a sealing plate (207), and is sleeved with the outer wall of the die casting module (205). The left side of the movable mold (203) is mechanically connected with a first hydraulic rod (204), and is located between the drive seat (102) and the movable mold (203). The extrusion mechanism (3) includes an extrusion plate (301) slidingly connected to the left side of the movable mold (203). A plurality of second hydraulic rods (302) are mechanically connected between the left side of the extrusion plate (301) and the drive seat (102). The left side of the movable mold (203) is slidingly connected with a connecting ring (303) penetrating into the inside of the movable mold (203). The right side of the connecting ring (303) is mechanically connected with a connecting column (304) between the die casting module (205), and is slidingly connected in the inside of the movable mold (203). The outer wall of the connecting column (304) is sleeved with a large torsion spring (305), and is located between the right side of the connecting ring (303) and the movable mold (203).

2. The integrated die-casting double extrusion device according to claim 1, characterized in that: The die casting mechanism (2) further includes a die casting mold (201) bolted to the left side of the fixed seat (101), and is sleeved with the outer wall of the die casting module (205) and the sealing plate (207). The top of the die casting mold (201) is mechanically connected with a plurality of material conveying pipes (202) penetrating through the die casting mold (201) to the die casting module (205). The right side of the fixed seat (101) is fixedly installed with a cooling circulation pipe (206) penetrating through the fixed seat (101) to the inside of the cooling circulation pipe (206).

3. The integrated die-cast double extrusion apparatus according to claim 2, characterized by: The inside of the drive seat (102) is fixedly installed with a hydraulic cylinder for driving the second hydraulic rod (302) and the first hydraulic rod (204) to move. The fixed seat (101) and the drive seat (102) are mechanically connected with sliding rods matched with the movable mold (203) and the extrusion plate (301).

4. The integrated die-cast double extrusion apparatus according to claim 2, characterized by: A die casting cavity matched with the die casting module (205) is formed in the left side of the die casting mold (201), and there is a certain gap between the die casting mold (201) and the die casting module (205). A sealing groove matched with the sealing plate (207) is formed in the left side of the outer wall of the die casting mold (201).

5. The integrated die-cast double extrusion apparatus according to claim 2, characterized by: The top of the die casting module (205) and the die casting mold (201) is provided with a plurality of injection holes matched with the feeding pipe (202), and the right side of the fixed seat (101) is fixedly provided with a water tank and a water pump for driving the cooling circulation pipe (206) to work.

6. The integrated die-cast double extrusion apparatus according to claim 1, characterized by: The inside of the movable mold (203) is provided with a supporting groove matched with the connecting ring (303), and the inside of the movable mold (203) is provided with a sliding groove matched with the connecting column (304) and the die casting module (205).

Citation Information

Patent Citations

  • An integrated apparatus for preparing semi-solid slurry and extruding casting of bushing-type parts.

    CN109365780B