A cooling and anti-fracture slider insert for die casting mold and a die casting mold

Abstract

This utility model provides a cooling and anti-fracture slider insert for a die-casting mold and the die-casting mold itself. It relates to the field of die-casting molds and includes a mating sleeve, which is a hollow tubular structure with at least one through hole on its side wall connecting the internal hollow space to the outside. The slider insert is a solid rod-shaped structure, at least a portion of which is axially positioned within the hollow space of the mating sleeve. The outer peripheral wall of the slider insert within the mating sleeve has an oil groove for guiding the flow of cooling medium, and the oil groove is connected to the through hole. In this utility model, coolant enters through the through hole on the mating sleeve and flows along the oil groove on the outer wall of the slider insert. This cooling method allows the cooling medium to directly act on the area of ​​the insert that most needs cooling, resulting in high heat exchange efficiency. Especially when the oil groove is designed as a spiral structure, a longer cooling path can be formed, further enhancing the cooling effect and making the temperature distribution of the insert more uniform.

Description

Technical Field

[0001] This utility model relates to the field of die casting molds, and in particular to a cooling and anti-fracture slider insert for die casting molds and a die casting mold. Background Technology

[0002] In die-casting molds, the round holes on the side of the product are typically formed using a slide block mechanism. When the size of the side hole is small, a structure with insert pins inside the slide block is commonly used to achieve the forming and facilitate replacement and maintenance. However, due to limitations in the product's structure and the internal space layout of the mold, it is often difficult to implement effective cooling measures such as point cooling or circulating water channels for these slide block inserts, resulting in insufficient heat dissipation during continuous production. This leads to bending deformation and even breakage, while aluminum adhesion occurs frequently. This not only reduces the service life of the inserts themselves but also seriously affects the stability of die-casting production and the overall reliability of the mold, ultimately hindering the improvement of production efficiency and product quality. Utility Model Content

[0003] The purpose of this utility model is to provide a cooling and anti-fracture slider insert for die casting molds and a die casting mold, so as to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A cooling and anti-fracture slider insert for a die-casting mold includes a mating sleeve, which is a hollow tubular structure with at least one through hole on its side wall connecting the internal hollow space with the outside. The slider insert is a solid rod-shaped structure, at least a portion of which is disposed in the hollow space of the mating sleeve along the axial direction of the mating sleeve; The slider insert has an oil groove on the outer peripheral wall of the mating sleeve for guiding the flow of cooling medium, and the oil groove is connected to the through hole.

[0005] Preferably, the oil groove extends in a spiral shape along the axial direction of the slider insert.

[0006] A die-casting mold with a sliding pin includes a mold core having a cavity for forming a casting; The mating sleeve is installed in the mold core, and a portion of the slider insert extends out from the mating sleeve and enters the cavity area; The mold core also has a coolant channel that connects to the through hole at the mating sleeve.

[0007] Preferably, it also includes a slider for fixing the slider insert pin, wherein the end of the slider insert pin that does not extend into the mating sleeve is connected to the slider.

[0008] Preferably, one end of the fitting that enters the mold core is flush with the contour surface of the cavity.

[0009] The beneficial effects of this utility model are: 1. In this utility model, the coolant enters through the through hole on the fitting sleeve and flows along the oil groove on the outer wall of the slider pin. This cooling method allows the cooling medium to act directly on the area of ​​the pin that needs the most cooling, resulting in high heat exchange efficiency. In particular, when the oil groove is designed as a spiral structure, a longer cooling path can be formed, further enhancing the cooling effect and making the temperature distribution of the pin more uniform.

[0010] 2. This utility model adopts a design that separates the insert pin from the mating sleeve. When the slider insert pin needs to be replaced due to normal wear, only the old insert pin needs to be pulled out and replaced with the new one. The mating sleeve fixed in the mold core does not need to be replaced. This greatly simplifies the maintenance process, shortens downtime, and reduces spare parts and maintenance costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a cooling and anti-fracture slider insert for a die-casting mold; Figure 2 for Figure 1 Cross-sectional view of the structure shown; Figure 3 For use Figure 1 A schematic diagram of the die-casting mold for the slider insert shown; Figure 4 for Figure 3 An enlarged view of point A shown; Reference numerals in the attached drawings: 1. Mating sleeve; 2. Through hole; 3. Slider insert; 4. Oil groove; 5. Mold core; 6. Casting; 7. Coolant channel; 8. Slider. Detailed Implementation

[0012] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0014] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0015] Example 1 This embodiment proposes a cooling and anti-fracture slider insert for die-casting molds. Please refer to [link / reference]. Figure 1 and Figure 2 The die-casting mold cooling and anti-fracture slider insert mainly consists of a fitting sleeve 1 and a slider insert 3. The fitting sleeve 1 is a hollow cylindrical part with a smooth inner wall and a precision-ground outer wall. A through hole 2 is radially opened on the side wall of the fitting sleeve 1, which serves as an inlet for coolant, guiding the coolant in the mold cooling system into the hollow space inside the fitting sleeve 1. The slider insert 3 is a solid cylindrical rod-shaped part with a diameter slightly smaller than the inner diameter of the fitting sleeve 1, forming a certain fitting clearance between the two for easy assembly. A part of the slider insert 3 is inserted into the hollow space of the fitting sleeve 1, while the other part extends out of the fitting sleeve 1. A continuous oil groove 4 is provided on the outer peripheral wall of the section inside the fitting sleeve 1. In this embodiment, the oil groove 4 is spirally distributed along the axial direction of the slider insert 3. The spiral design greatly increases the contact area and flow path length between the coolant and the insert surface, thereby improving the heat exchange efficiency. Meanwhile, the cross-section of the oil tank 4 is designed as a semi-circle. This smooth contour is conducive to the smooth flow of coolant and is less likely to produce dead flow angles and pressure changes.

[0016] Example 2 A die-casting mold equipped with the pin assembly of Embodiment 1, please refer to Figures 1-4 The die-casting mold includes a mold core 5, which is the main part constituting the mold cavity. Through cooperation with other mold components, it defines the final shape of the casting 6 to be formed. Mounting channels are pre-machined on the mold core 5 for tightly fitting the mating sleeve 1. The front end face of the mating sleeve 1 can be flush with the cavity surface of the mold core 5 to ensure the flatness of the casting 6 surface. A complete set of coolant channels 7 is designed and machined inside the mold core 5. These channels constitute the overall cooling system of the mold, with the outlet position of the coolant channel 7 precisely aligned with the through hole 2 on the side wall of the mating sleeve 1. A slider insert 3 passes through the mating sleeve 1, with its working front end extending out of the mating sleeve 1 and entering the cavity area of ​​the mold core 5 to form the required hole structure on the casting 6. The rear fixed end of the slider insert 3 is connected to a slider 8.

[0017] Please see Figures 1-4 In this embodiment, before die casting begins, the mold's cooling system is activated, and coolant flows into the coolant channel 7 inside the mold core 5, passing through the connection with the through hole 2 and entering the oil tank 4. Due to the presence of the oil tank 4, the coolant will preferentially and primarily flow along this preset spiral path, forming a coolant film on the surface of the slider pin 3. After the high-temperature molten metal is injected into the cavity, the heat absorbed by the slider pin 3 can be carried away by the coolant.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cooling and anti-breakage slider insert for die-casting molds, characterized in that, include: The fitting sleeve is a hollow tubular structure with at least one through hole on its side wall connecting the internal hollow space with the outside. The slider insert is a solid rod-shaped structure, at least a portion of which is disposed in the hollow space of the mating sleeve along the axial direction of the mating sleeve; The slider insert has an oil groove on the outer peripheral wall of the mating sleeve for guiding the flow of cooling medium, and the oil groove is connected to the through hole.

2. The anti-fracture sliding block insert for cooling in a die-casting mold according to claim 1, characterized in that, The oil groove extends in a spiral shape along the axial direction of the slider pin.

3. A die-casting mold having the slider insert as described in claim 2, characterized in that, include: The mold core has a cavity for forming the casting; The mating sleeve is installed in the mold core, and a portion of the slider insert extends out from the mating sleeve and enters the cavity area; The mold core also has a coolant channel that connects to the through hole at the mating sleeve.

4. The die-casting mold according to claim 3, characterized in that, It also includes a slider for fixing the slider insert pin, wherein the end of the slider insert pin that does not extend into the mating sleeve is connected to the slider.

5. The die-casting mold according to claim 3, characterized in that, The end of the fitting that enters the mold core is flush with the contour surface of the cavity.

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