Double-die-core structure of automobile die-casting die

Abstract

The utility model relates to the technical field of die-casting dies, in particular to a double-die-core structure of an automobile die-casting die. According to the technical scheme, the mold comprises a mounting frame, movable molds, a double-core fixed mold, a stress plate and a motor, the double-core fixed mold is arranged in the mounting frame, the movable molds are arranged on the two sides of the double-core fixed mold, hydraulic rods are arranged at the two ends of the mounting frame, a stroke channel is formed in the double-core fixed mold, the motor is arranged on one side of the stroke channel, and the stress plate is arranged on the other side of the stroke channel. A motor is arranged in the stroke channel, a cam is arranged at the output end of the motor, a stress plate is arranged in the stroke channel, an ejector rod is arranged at one end of the stress plate, a spring is connected to the outer side of the ejector rod in a sleeving mode, and a sprue gate is formed in the upper end of the double-core fixed mold. According to the utility model, the die-cast and cooled structural member is ejected out through the ejector rod, so that the problem that the cooled structural member is relatively complicated and very inconvenient to take out due to the fact that the structural member is complicated and relatively large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a double-mold core structure of an automobile die-casting mold. Background Art

[0002] Dual-core structures are commonly used in the production of large, complex aluminum alloy parts such as automotive engine blocks, transmission housings, and crankcases. These components require high-pressure casting in automotive manufacturing. Using a dual-core structure allows for more efficient realization of complex structures and cavities within these parts, ensuring both quality and durability.

[0003] During the die-casting process, liquid metal fills the entire mold, and the parts are removed from the mold after cooling. Because the structural parts are complex and some are large, it is cumbersome to remove the cooled structural parts, which is very inconvenient. For this reason, we propose a dual-core structure for automotive die-casting molds to solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to address the problems existing in the background technology and to propose a double-mold core structure for an automobile die-casting mold.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-core structure of an automobile die-casting mold, comprising a mounting frame, a movable mold, a double-core fixed mold, a force plate and a motor, a double-core fixed mold is arranged inside the mounting frame, movable molds are arranged on both sides of the double-core fixed mold, hydraulic rods with telescopic ends connected to the movable mold are arranged inside both ends of the mounting frame, a stroke channel is opened inside the double-core fixed mold, a motor is arranged on one side of the stroke channel, a cam is arranged at the output end of the motor, symmetrically distributed force plates are arranged inside the stroke channel, push rods are arranged on the opposite ends of the force plates, a spring is sleeved on the outside of the push rods, and pouring gates penetrating the mounting frame are arranged on both sides of the upper end of the double-core fixed mold.

[0006] Preferably, the double-core fixed mold is provided with symmetrically distributed travel holes, and one end of the ejector rod is slidably inserted into the travel hole. The ejector rod is slidably guided in the double-core fixed mold through the travel hole.

[0007] Preferably, one end of the ejector pin is provided with an ejector block positioned within the cavity of the dual-core fixed mold. The inner wall of the cavity of the dual-core fixed mold is provided with a receiving groove adapted to fit the ejector block and interpenetrating with the stroke hole. When the ejector block is positioned within the receiving groove, it does not affect the use of the cavity within the dual-core fixed mold, and the ejector block moves synchronously with the movement of the ejector pin.

[0008] Preferably, the movable mold is provided with symmetrically distributed sliding sleeves at both ends, with guide rods slidably mounted within the sleeves, and the ends of the guide rods are connected to the mounting brackets. The movable mold slides on the outer wall of the guide rods via the sliding sleeves, guiding the movable mold and locating it when docking with the dual-core fixed mold.

[0009] Preferably, both ends of the spring are connected to the force-bearing plate and the double-core fixed mold respectively. The force-bearing plate is elastically supported by the spring.

[0010] Preferably, the height of the cam is greater than its width, and the outer wall of the cam is an arc surface. After the cam with an arc surface rotates, the position with a larger radius presses the force-bearing plate.

[0011] Preferably, the mounting frame is provided with symmetrically distributed brackets at both ends, and the brackets are provided with mounting holes inside, so as to install the mounting frame through the brackets, and the mounting holes are used for plugging the fixing parts when the brackets are docked with the base.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model is provided with movable molds at both ends of the double-core fixed mold. After the movable mold and the double-core fixed mold are closed, the molten metal is conveyed into the mold cavity through the pouring port, and a structural part is formed after cooling. Two structural parts can be processed at one time, which improves the processing efficiency. After the movable mold is opened, the motor drives the cam to rotate, squeezes the force plate, and drives the ejector rod to push the cooled structural part outward, which is convenient for the staff to take the material and makes it more convenient to take the material. When the cam finishes squeezing the force plate, the ejector rod is elastically reset by the spring, which is convenient for the later die-casting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a top view;

[0016] Figure 3 This is a side sectional three-dimensional structural diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the top-sectional three-dimensional structure of the double-core fixed mold of the present invention;

[0018] Figure 5 This is a schematic diagram of the top cross-sectional three-dimensional structure of the push rod of the present invention.

[0019] Figure numerals: 1. Mounting frame; 2. Moving mold; 3. Guide rod; 4. Double-core fixed mold; 5. Sliding sleeve; 6. Hydraulic rod; 7. Bracket; 8. Force plate; 9. Cam; 10. Pouring gate; 11. Stroke channel; 12. Spring; 13. Ejector rod; 14. Motor; 15. Ejector block; 16. Stroke hole; 17. Return groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1-Figure 5 As shown, the utility model proposes a dual-core structure of an automobile die-casting mold, including a mounting frame 1, a movable mold 2, a dual-core fixed mold 4, a force plate 8 and a motor 14. The dual-core fixed mold 4 is arranged inside the mounting frame 1, and movable molds 2 are arranged on both sides of the dual-core fixed mold 4. Hydraulic rods 6 with telescopic ends connected to the movable mold 2 are arranged inside both ends of the mounting frame 1. A stroke channel 11 is opened inside the dual-core fixed mold 4, a motor 14 is arranged on one side of the stroke channel 11, and a cam 9 is arranged at the output end of the motor 14. A symmetrically distributed force plate 8 is arranged inside the stroke channel 11, and a push rod 13 is provided at the opposite end of the force plate 8. A spring 12 is sleeved on the outer side of the push rod 13, and a pouring gate 10 penetrating the mounting frame 1 is provided on both sides of the upper end of the dual-core fixed mold 4;

[0022] The double-core fixed mold 4 is provided with symmetrically distributed stroke holes 16, and one end of the ejector rod 13 is slidably inserted into the stroke hole 16;

[0023] One end of the ejector rod 13 is provided with an ejector block 15 located in the cavity of the double-core fixed mold 4. The inner wall of the cavity of the double-core fixed mold 4 is provided with a placement groove 17 adapted to the ejector block 15 and connected to the stroke hole 16;

[0024] The movable mold 2 is provided with symmetrically distributed sliding sleeves 5 at both ends. A guide rod 3 is slidably installed inside the sliding sleeve 5. Both ends of the guide rod 3 are connected to the mounting frame 1.

[0025] The two ends of the spring 12 are connected to the force-bearing plate 8 and the double-core fixed mold 4 respectively;

[0026] The height of the cam 9 is greater than its width, and the outer wall of the cam 9 is an arc surface;

[0027] The mounting frame 1 is provided with symmetrically distributed brackets 7 at both the upper and lower ends, and mounting holes are provided inside the brackets 7 .

[0028] The implementation steps based on Example 1 are as follows: the hydraulic rod 6 drives the movable mold 2 to move toward the double-core fixed mold 4, slides on the outer wall of the guide rod 3 through the sliding sleeve 5, guides the movable mold 2, and inputs the molten metal into the pouring port 10. The molten metal fills the inside of the mold cavity. After cooling and forming, the movable mold 2 is opened. At this time, the motor 14 operates to drive the cam 9 to rotate. The cam 9 squeezes the force plate 8. The force plate 8 inside the stroke channel 11 moves away from each other, squeezes the spring 12, and drives the push rod 13 to move. The push rod 13 drives the push block 15 to move, pushing the cooled and formed structural parts, so that the structural parts are automatically demolded, which is convenient for the staff to take the parts. It is easy to use and avoids the problem of inconvenience in taking materials from the structural parts inside the mold cavity. The cam 9 rotates one circle. After one circle, the spring 12 stops being stressed and pushes the force plate 8 to reset through its own elasticity, driving the push rod 13 to reset, and the push block 15 is located inside the return groove 17, which is convenient for subsequent die-casting processing.

[0029] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A dual-core structure for an automobile die-casting mold, comprising a mounting frame (1), a movable mold (2), a dual-core fixed mold (4), a force-bearing plate (8), and a motor (14), characterized in that: A double-core fixed mold (4) is provided inside the mounting frame (1), and movable molds (2) are provided on both sides of the double-core fixed mold (4). Hydraulic rods (6) with telescopic ends connected to the movable mold (2) are provided inside both ends of the mounting frame (1). A stroke channel (11) is provided inside the double-core fixed mold (4), a motor (14) is provided on one side of the stroke channel (11), and a cam (9) is provided at the output end of the motor (14). Symmetrically distributed force plates (8) are provided inside the stroke channel (11), and push rods (13) are provided at opposite ends of the force plates (8). A spring (12) is sleeved on the outer side of the push rod (13), and pouring ports (10) that penetrate the mounting frame (1) are provided on both sides of the upper end of the double-core fixed mold (4).

2. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: The double-core fixed mold (4) is provided with symmetrically distributed travel holes (16), and one end of the ejector rod (13) is slidably inserted into the travel hole (16).

3. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: One end of the ejector rod (13) is provided with an ejector block (15) located in the mold cavity of the double-core fixed mold (4), and the inner wall of the mold cavity of the double-core fixed mold (4) is provided with a placement groove (17) adapted to the ejector block (15) and communicating with the stroke hole (16).

4. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: The movable mold (2) is provided with symmetrically distributed sliding sleeves (5) at both upper and lower ends. A guide rod (3) is slidably mounted inside the sliding sleeve (5). Both ends of the guide rod (3) are connected to the mounting frame (1).

5. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: The two ends of the spring (12) are respectively connected to the force-bearing plate (8) and the double-core fixed mold (4).

6. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: The height of the cam (9) is greater than its width, and the outer wall of the cam (9) is an arc surface.

7. The dual-core structure of an automobile die-casting mold according to claim 1, characterized in that: The upper and lower ends of the mounting frame (1) are both provided with symmetrically distributed brackets (7), and mounting holes are provided inside the brackets (7).

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