Die-casting mold core structure for compressor clutch cover of automobile air conditioner
By optimizing the mold structure and adopting a design that combines upper and lower mold cores for venting and slag packing, the problem of air shrinkage holes in the mold cavity was solved, enabling the production of high-quality compressor clutch covers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-31
AI Technical Summary
When using conventional die-casting molds to produce clutch covers for air conditioning compressors, it is difficult to effectively expel the air shrinkage cavities within the mold cavity, which affects product quality.
The upper and lower mold cores are stacked one on top of the other. Combined with the design of gate, venting block, venting notch, venting shallow groove and slag pocket groove, it ensures that the air in the mold cavity is discharged. The inserts and slag pocket groove collect excess aluminum liquid and optimize the flow rate of aluminum liquid.
It improves product quality, facilitates mold opening and part removal, reduces shrinkage cavities, and increases production efficiency.
Smart Images

Figure CN224058670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of clutch covers, and in particular to a die-casting mold core structure for a compressor clutch cover used in automotive air conditioning. Background Technology
[0002] When conventional die-casting molds are used to produce clutch covers for air conditioning compressors, the small overall volume of the clutch cover prevents the internal cavity structure of the mold from being vented through ordinary venting structures, resulting in certain air shrinkage cavities inside the produced product. To solve this problem, the mold structure needs to be improved. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a die-casting mold core structure for the compressor clutch cover of automotive air conditioning, which has the characteristics of improving product quality, facilitating air discharge in the mold cavity, and facilitating mold opening and part removal.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a die-casting mold core structure for a compressor clutch cover of an automotive air conditioner is provided, including an upper mold core, a lower mold core, and a gate structure. The upper mold core and the lower mold core are stacked vertically, and a gate structure is installed at the middle of the front end between them. A venting block assembly is installed on the rear side of the upper mold core and the lower mold core. An upper insert sleeve is provided at the middle of the upper end face of the upper mold core, which passes through the upper mold core. An upper insert is inserted and installed in the middle of the upper insert sleeve. A lower insert is provided at the middle of the upper end face of the lower mold core. A mold cavity structure is formed between the lower insert and the upper insert. Venting notches are arranged side by side on the rear side of the upper insert sleeve. Two shallow venting grooves communicating with the venting notches are symmetrically provided on the upper end face of the upper mold core.
[0005] In this technical solution, upper and lower inserts are used to form the inner ring of the product, venting notches are used to ensure that the internal air in the mold cavity structure can be discharged, and shallow venting grooves are used to guide the outflow direction of the gas during the venting process.
[0006] As a supplement to this technical solution, a central slag bag insert is embedded in the middle of the upper end of the lower insert. The central slag bag insert has central slag bag grooves symmetrically arranged at the front and back of its upper end. In this technical solution, the central slag bag grooves are set to facilitate the collection of excess aluminum liquid, thereby improving the quality of the product.
[0007] As a supplement to this technical solution, the front middle of the lower mold core is provided with a main channel extending backward. The rear end of the main channel branches and extends to the left and right sides. The rear part of the branch end of the main channel is provided with a fan-shaped node groove that connects with the front side of the mold cavity structure. The main channel is provided to facilitate the flow of aluminum liquid into the mold cavity structure, and the fan-shaped node groove is provided to facilitate the filling speed of aluminum liquid and facilitate the rapid entry of aluminum liquid into the mold cavity structure.
[0008] As a supplement to this technical solution, the fan-shaped node groove is provided with an overflow groove, which is used to slow down the filling speed of the aluminum liquid.
[0009] As a supplement to this technical solution, the upper end face of the lower mold core is provided with several slag bag structures. The slag bag structures are arranged around the rear side of the mold cavity structure, and the slag bag structures and the venting block assembly are connected by an integrated flow channel.
[0010] Beneficial effects: This utility model relates to a die-casting mold core structure for a compressor clutch cover of an automotive air conditioner. By setting an upper insert and a lower insert, the inner ring of the product can be formed. By setting an exhaust notch, the internal air in the mold cavity structure can be discharged. At the same time, by setting an exhaust shallow groove, the outflow direction of the gas during the exhaust process can be guided. It has the characteristics of improving product quality, facilitating the discharge of air in the mold cavity, and facilitating mold opening and part removal. Attached Figure Description
[0011] Figure 1 This is the front view of this utility model;
[0012] Figure 2 This is a utility model Figure 1 Sectional view along the AA direction;
[0013] Figure 3 This is a top view of the present invention;
[0014] Figure 4 This is a top view of the lower mold core described in this utility model;
[0015] Figure 5 This is a bottom view of the upper mold core described in this utility model.
[0016] Illustration: 1. Upper mold core, 2. Lower mold core, 3. Sprue structure, 4. Venting block assembly, 5. Upper insert sleeve, 6. Upper insert, 7. Venting notch, 8. Venting shallow groove, 9. Lower insert, 10. Middle slag bag insert, 11. Middle slag bag groove, 12. Mold cavity structure, 13. Main runner, 14. Fan-shaped node groove, 15. Overflow groove, 16. Integrated runner, 17. Slag bag structure. Detailed Implementation
[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0018] The embodiments of this utility model relate to a die-casting mold core structure for a compressor clutch cover of an automotive air conditioner, such as... Figure 1 As shown in Figure 5, the mold includes an upper mold core 1, a lower mold core 2, and a gate structure 3. The upper mold core 1 and the lower mold core 2 are stacked vertically, and the gate structure 3 is installed at the middle of the front end between them. A venting block assembly 4 is installed on the rear side of the upper mold core 1 and the lower mold core 2. An upper insert sleeve 5 is provided in the middle of the upper end face of the upper mold core 1, which passes through the upper mold core 1. An upper insert 6 is inserted and installed in the middle of the upper insert sleeve 5. A lower insert 9 is provided in the middle of the upper end face of the lower mold core 2. A mold cavity structure 12 is formed between the lower insert 9 and the upper insert 6. Venting notches 7 are arranged side by side on the rear side of the upper insert sleeve 5. Two shallow venting grooves 8 connected to the venting notches 7 are symmetrically arranged on the upper end face of the upper mold core 1.
[0019] In this technical solution, the upper insert 6 and the lower insert 9 are used to form the inner ring of the product, the venting notch 7 is used to ensure that the internal air in the mold cavity structure 12 is discharged, and the venting shallow groove 8 is used to guide the flow direction of the gas during the venting process.
[0020] As a supplement to this technical solution, a central slag packing insert 10 is embedded in the upper middle part of the lower insert 9. The central slag packing insert 10 has central slag packing grooves 11 symmetrically arranged at the front and back of its upper end. In this technical solution, the central slag packing grooves 11 are set to facilitate the collection of excess aluminum liquid, thereby improving the quality of the product.
[0021] As a supplement to this technical solution, the lower mold core 2 is provided with a main channel 13 extending backward at the front center. The rear end of the main channel 13 branches and extends to the left and right sides. The rear part of the branch end of the main channel 13 is provided with a fan-shaped node groove 14 that connects with the front side of the mold cavity structure 12. The main channel 13 is provided to facilitate the flow of aluminum liquid into the mold cavity structure 12. The fan-shaped node groove 14 is provided to facilitate the filling speed of aluminum liquid and facilitate the rapid entry of aluminum liquid into the mold cavity structure 12.
[0022] As a supplement to this technical solution, the fan-shaped node groove 14 is provided with an overflow groove 15, which is used to slow down the filling speed of the aluminum liquid.
[0023] As a supplement to this technical solution, a plurality of slag-filled structures 17 are provided on the rear part of the upper end face of the lower mold core 2. The slag-filled structures 17 are arranged around the rear side of the mold cavity structure 12, and the slag-filled structures 17 and the venting block assembly 4 are connected by an integrated flow channel 16.
[0024] Example
[0025] When the mold is closed, the molten aluminum enters the main runner 13 from the gate structure 3. The molten aluminum flows into the fan-shaped node groove 14 along the main runner 13. The fan-shaped node groove 14 allows the molten aluminum to quickly enter the mold cavity structure 12. At the same time, the overflow groove 15 is used to reduce the flow rate of the molten aluminum to avoid a large number of air shrinkage holes caused by the excessive flow rate of the molten aluminum. When the molten aluminum fills the mold cavity structure 12, some air is discharged from the slag bag structure 17 and the venting block assembly 4, and the other part is discharged through the venting notch 7. After the mold cavity structure 12 is filled, it is cooled and formed, and finally the mold is opened and the part is removed.
Claims
1. A die casting core structure for a compressor clutch cover of an automotive air conditioner, characterized by: The utility model provides a mould structure for the production of the fan-shaped node, including upper mould core (1), lower mould core (2) and sprue structure (3), upper mould core (1) and lower mould core (2) are arranged in a top-down manner, and the front end middle part between the two is provided with sprue structure (3), the rear side of upper mould core (1) and lower mould core (2) is provided with exhaust block assembly (4), the middle part of the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is provided with the upper end surface of upper mould core (1) is 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A die casting core structure for a clutch cover of a compressor for an automotive air conditioner according to claim 1, characterized in that: 3. A die casting core structure for a clutch cover of a compressor for an automotive air conditioner according to claim 1, characterized in that: 4. A die casting core structure for a clutch cover of a compressor for an automotive air conditioner according to claim 3, characterized in that: 5. A die casting core structure for a clutch cover of a compressor for an automotive air conditioner as defined in claim 1, wherein: