Die-casting die capable of achieving uniform feeding

By introducing guide pillars and steel balls into the die-casting mold, combined with the use of hydraulic push rods and lubricating oil, the problem of uneven feeding in traditional molds is solved, product quality is improved and mold life is extended.

CN223616748UActive Publication Date: 2025-12-02NINGBO ZHITEJIA MACHINERY CO LTD
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Patent Information

Application Number
CN202520233458.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-02
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Traditional die-casting molds suffer from uneven material feeding, resulting in poor die-casting product quality, accelerated mold wear, and shortened service life.

Method used

A die-casting mold was designed, comprising an upper mold, guide pillars, steel balls, hydraulic push rods, and a drive mechanism. The lower mold is horizontally oscillating through the cooperation of the guide pillars and steel balls. Combined with the fixation of the hydraulic push rods, the raw material is evenly distributed in the forming groove. The steel balls are lubricated with lubricating oil to reduce wear.

Benefits of technology

This has improved the molding quality of die-cast products, extended the service life of molds, and reduced production costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223616748U_ABST
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Abstract

The utility model belongs to the technical field of die-casting dies, and particularly relates to a uniform-feeding die-casting die which comprises an upper die, hollow blocks are fixedly connected to the left side and the right side of the upper die, guide columns are arranged on the inner walls of the hollow blocks in an attached mode, a first transverse plate is fixedly connected to the bottoms of the guide columns, and a second transverse plate is fixedly connected to the bottoms of the first transverse plate. A lower mold is fixedly connected to the upper surface of the first transverse plate, a conical hole is formed in the first transverse plate, and a steel ball is arranged on the inner wall of the conical hole in an attached mode. According to the die-casting die uniform in feeding, through cooperation of a first transverse plate, a conical hole, a steel ball, a second transverse plate, a stand column, a bottom plate, a round hole, a cylinder, a protruding block, a limiting column, a square cylinder, a spring, a driving mechanism and a poke rod, when the driving mechanism drives the poke rod to rotate, a lower die can horizontally swing, and through the horizontally-swinging lower die, the die-casting die uniform in feeding is formed. And the raw materials are uniformly distributed in the forming groove of the lower mold, so that the product forming quality is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology, specifically relating to a die casting mold with uniform feeding. Background Technology

[0002] Die casting molds are tools used to cast metal parts, specifically for completing the die casting process on a specialized die casting and forging machine. The basic die casting process involves molten metal being poured into the mold cavity at low or high speed. The mold has movable cavity surfaces, which are pressurized and forged as the molten metal cools, eliminating shrinkage cavities and porosity defects in the blank and achieving a forged, fragmented grain structure. This significantly improves the overall mechanical properties of the blank.

[0003] In die casting, the uniformity of material feeding into the mold plays a crucial role in the quality of the die-cast products. Traditional die casting molds often suffer from uneven material feeding, leading to uneven flow of molten metal during the die casting process. This can cause defects such as incomplete filling, shrinkage cavities, and porosity in the product, severely affecting its mechanical properties and appearance. Furthermore, uneven feeding can also cause uneven heating of the mold, accelerating mold wear, shortening mold life, and increasing production costs. Utility Model Content

[0004] The purpose of this invention is to provide a die-casting mold with uniform feeding, which solves the problem that the product molding quality is often poor due to uneven feeding when using existing die-casting molds.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A die-casting mold with uniform feeding includes an upper mold. Hollow blocks are fixedly connected to both sides of the upper mold. Guide posts are fitted to the inner walls of the hollow blocks. A first horizontal plate is fixedly connected to the bottom of the guide posts. A lower mold is fixedly connected to the upper surface of the first horizontal plate. A conical hole is opened inside the first horizontal plate. A steel ball is fitted to the inner wall of the conical hole. A second horizontal plate is fitted to the bottom of the steel ball. A column is fixedly connected to the bottom of the second horizontal plate. A base plate is fixedly connected to the bottom of the column. A circular hole is opened inside the second horizontal plate. A cylinder is fixedly connected to the bottom of the first horizontal plate. A protrusion is fixedly connected to the inner wall of the cylinder. A limit post is fixedly connected to the surface of the cylinder. The upper surface of the limit post is fitted to the bottom of the second horizontal plate. A square tube is fixedly connected to the upper surface of the second horizontal plate. Springs are fixedly connected to the inner wall of the square tube and the surface of the lower mold. A driving mechanism is fixedly connected to the upper surface of the base plate. A toggle rod is fixedly connected to the inner wall of the driving mechanism.

[0007] The present invention is further configured such that the driving mechanism includes a drive motor, a rotating shaft, and a strip plate. The bottom of the drive motor is fixedly connected to the upper surface of the base plate, and the output end of the drive motor is fixedly connected to the bottom end of the rotating shaft through a coupling. The surface of the rotating shaft and the surface of the actuating rod are both fixedly connected to the inner wall of the strip plate.

[0008] The present invention is further configured such that a hydraulic push rod is fixedly connected to the inner wall of the square tube, and one end of the hydraulic push rod is in contact with the surface of the lower mold.

[0009] The present invention is further configured such that the centers of the rotating shaft, the cylinder, the second horizontal plate and the lower mold are all on the same vertical line.

[0010] The present invention is further configured such that a first square ring is fixedly connected to the upper surface of the first horizontal plate, a second square ring is fixedly connected to the upper surface of the first horizontal plate, and a sealing ring is fixedly connected to the upper surface of both the first and second square rings. The sealing ring has an inlet hole inside, and a sealing plug is threadedly connected to the inner wall of the inlet hole.

[0011] The present invention is further configured such that a first groove is formed on the upper surface of the strip plate, a second groove is formed on the surface of the rotating shaft, and a reinforcing block is fixedly connected to the inner wall of the first groove and the inner wall of the second groove.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model discloses a die-casting mold with uniform feeding. Through the cooperation of a first horizontal plate, a conical hole, steel balls, a second horizontal plate, a column, a base plate, a round hole, a cylinder, a protrusion, a limiting post, a square cylinder, a spring, a drive mechanism, and a lever, the lower mold swings horizontally when the drive mechanism drives the lever to rotate. The horizontal swing of the lower mold ensures that the raw material is evenly distributed in the forming groove of the lower mold, thereby improving the product forming quality. At the same time, after the raw material in the lower mold is evenly distributed, the lower mold can be fixed by a hydraulic push rod, so that the raw material will not be defective after forming due to the shaking of the lower mold during cooling and forming.

[0014] This utility model provides a die-casting mold with uniform feeding. Through the cooperation of a first square ring, a second square ring, a sealing ring, a liquid inlet hole, and a sealing plug, a certain amount of lubricating oil can be stored on the first horizontal plate. At the same time, the lubricating oil on the first horizontal plate can contact the steel ball through the conical hole and lubricate the steel ball, thereby making the lower mold more susceptible to damage when it swings horizontally. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 yes Figure 2 Sectional view at point AA;

[0018] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0019] Figure 5 yes Figure 3 Sectional view at CC;

[0020] Figure 6 This is a top view of the first horizontal plate in this utility model;

[0021] Figure 7 This is a bottom view of the second horizontal plate in this utility model;

[0022] Figure 8 This is a top view of the cylinder in this utility model;

[0023] Figure 9 This is a top view of the drive mechanism in this utility model;

[0024] Figure 10 This is a top view of the rotating shaft in this utility model;

[0025] Figure 11 This is a top view of the strip plate in this utility model;

[0026] Figure 12 This is a top view of the sealing ring in this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Upper mold; 2. Hollow block; 3. Guide post; 4. First horizontal plate; 5. Lower mold; 6. Tapered hole; 7. Steel ball; 8. Second horizontal plate; 9. Column; 10. Base plate; 11. Round hole; 12. Cylinder; 13. Protrusion; 14. Limiting post; 15. Square cylinder; 16. Spring; 17. Drive mechanism; 171. Drive motor; 172. Rotating shaft; 173. Strip plate; 18. Actuating rod; 19. Hydraulic push rod; 20. First square ring; 21. Second square ring; 22. Sealing ring; 23. Liquid inlet; 24. Sealing plug; 25. First groove; 26. Second groove; 27. Reinforcing block. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figures 1 to 11 As shown, a die-casting mold with uniform feeding includes an upper mold 1. Hollow blocks 2 are fixedly connected to both sides of the upper mold 1. Guide pillars 3 are fitted into the inner walls of the hollow blocks 2. A first horizontal plate 4 is fixedly connected to the bottom of the guide pillars 3. A lower mold 5 is fixedly connected to the upper surface of the first horizontal plate 4. A conical hole 6 is opened inside the first horizontal plate 4. Steel balls 7 are fitted into the inner walls of the conical hole 6. The top diameter of the conical hole 6 is smaller than the diameter of the steel ball 7, and the bottom diameter of the conical hole 6 is larger than the diameter of the steel ball 7. A second horizontal plate 8 is fitted into the bottom of the steel ball 7. A column 9 is fixedly connected to the bottom of the second horizontal plate 8. A base plate 10 is fixedly connected to the bottom of the column 9. The interior of the horizontal plate 8 has a circular hole 11. The bottom of the first horizontal plate 4 is fixedly connected to a cylinder 12. The inner wall of the cylinder 12 is fixedly connected to a protrusion 13. The surface of the cylinder 12 is fixedly connected to a limiting post 14. The upper surface of the limiting post 14 is in contact with the bottom of the second horizontal plate 8. The upper surface of the second horizontal plate 8 is fixedly connected to a square cylinder 15. The inner wall of the square cylinder 15 and the surface of the lower mold 5 are both fixedly connected to a spring 16. The upper surface of the base plate 10 is fixedly connected to a driving mechanism 17. The inner wall of the driving mechanism 17 is fixedly connected to a toggle rod 18. The inner wall of the square cylinder 15 is fixedly connected to a hydraulic push rod 19. One end of the hydraulic push rod 19 is in contact with the surface of the lower mold 5.

[0032] The drive mechanism 17 includes a drive motor 171, a rotating shaft 172, and a strip plate 173. The bottom of the drive motor 171 is fixedly connected to the upper surface of the base plate 10. The output end of the drive motor 171 is fixedly connected to the bottom end of the rotating shaft 172 through a coupling. The surface of the rotating shaft 172 and the surface of the actuating rod 18 are both fixedly connected to the inner wall of the strip plate 173. The centers of the rotating shaft 172, the cylinder 12, the second horizontal plate 8, and the lower mold 5 are all on the same vertical line. A first groove 25 is provided on the upper surface of the strip plate 173, and a second groove 26 is provided on the surface of the rotating shaft 172. Reinforcing blocks 27 are fixedly connected to the inner walls of the first groove 25 and the inner walls of the second groove 26. The reinforcing blocks 27 make the fixing between the rotating shaft 172 and the strip plate 173 more secure.

[0033] It should be noted that the guide post 3 and the hollow block 2 work together to align the upper mold 1 with the lower mold 5. The first horizontal plate 4, the conical hole 6, the steel ball 7, the second horizontal plate 8, the round hole 11, the cylinder 12 and the limiting post 14 work together to ensure that the first horizontal plate 4 can only move horizontally on the second horizontal plate 8. The spring force of the spring 16 allows the first horizontal plate 4 to automatically return to its initial position after moving. At the same time, since the steel ball 7 can rotate freely in the conical hole 6, the movement of the first horizontal plate 4 on the second horizontal plate 8 is smoother.

[0034] When the drive motor 171 drives the rotating shaft 172 to rotate, the rotating shaft 172 and the strip plate 173 cooperate to make the actuating rod 18 rotate around the rotating shaft 172. Through the cooperation of the rotating actuating rod 18 and the protrusion 13, the lower mold 5 swings horizontally. At this time, the material is evenly distributed in the forming groove of the lower mold 5 by the horizontal swing of the lower mold 5. At the same time, after the material in the lower mold 5 is evenly distributed, the lower mold 5 can be fixed by the hydraulic push rod 19, so that the material will not be defective after forming due to the shaking of the lower mold 5 during cooling and forming.

[0035] like Figures 1 to 12 As shown, a first square ring 20 is fixedly connected to the upper surface of the first horizontal plate 4, a second square ring 21 is fixedly connected to the upper surface of the first horizontal plate 4, and a sealing ring 22 is fixedly connected to the upper surface of both the first square ring 20 and the upper surface of the second square ring 21. An inlet hole 23 is provided inside the sealing ring 22, and a sealing plug 24 is threadedly connected to the inner wall of the inlet hole 23.

[0036] It should be noted that, through the cooperation of the first square ring 20, the second square ring 21, the sealing ring 22, the liquid inlet hole 23 and the sealing plug 24, a certain amount of lubricating oil can be stored on the first horizontal plate 4. At the same time, the lubricating oil on the first horizontal plate 4 can contact the steel ball 7 through the conical hole 6 and lubricate the steel ball 7, thereby causing the lower mold 5 to be more damaged when it swings horizontally.

[0037] The working principle of this utility model is as follows: First, the upper mold 1 and the lower mold 5 are joined together, and the raw material is injected into the forming groove of the lower mold 5 through the injection hole in the upper mold 1. After the injection is completed, the hydraulic push rod 19 is controlled to separate from the lower mold 5, and the drive motor 171 drives the actuating rod 18 to rotate. Then, through the cooperation of the rotating actuating rod 18 and the protrusion 13, the lower mold 5 swings horizontally, and through the elastic force of the spring 16, the first horizontal plate 4 can automatically return to the initial position after moving. At this time, the raw material is evenly distributed in the forming groove of the lower mold 5 by the horizontal swing of the lower mold 5. At the same time, after the raw material in the lower mold 5 is evenly distributed, the hydraulic push rod 19 is controlled to contact the lower mold 5 at one end, and the lower mold 5 cannot shake through the hydraulic push rod 19. After the raw material cools and forms in the lower mold 5, the upper mold 1 and the lower mold 5 are separated, and the formed product is taken out from the lower mold 5.

[0038] When lubricating the steel ball 7, first unscrew the sealing plug 24 in the liquid inlet 23. Then, inject lubricating oil into the gap between the first square ring 20 and the second square post through the liquid inlet 23. At the same time, the lubricating oil in the gap between the first square ring 20 and the second square post can contact the steel ball 7 through the conical hole 6 and lubricate the steel ball 7. After the oil injection is completed, screw the sealing plug 24 into the liquid inlet 23 to seal the liquid inlet 23.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A die-casting mold with uniform feeding, characterized in that: The upper mold (1) is fixedly connected to hollow blocks (2) on both sides. A guide post (3) is attached to the inner wall of the hollow block (2). A first horizontal plate (4) is fixedly connected to the bottom of the guide post (3). A lower mold (5) is fixedly connected to the upper surface of the first horizontal plate (4). A conical hole (6) is opened inside the first horizontal plate (4). A steel ball (7) is attached to the inner wall of the conical hole (6). A second horizontal plate (8) is attached to the bottom of the steel ball (7). A column (9) is fixedly connected to the bottom of the second horizontal plate (8). A base plate (10) is fixedly connected to the bottom of the column (9). 8) has a circular hole (11) inside. A cylinder (12) is fixedly connected to the bottom of the first horizontal plate (4). A protrusion (13) is fixedly connected to the inner wall of the cylinder (12). A limit post (14) is fixedly connected to the surface of the cylinder (12). The upper surface of the limit post (14) is in contact with the bottom of the second horizontal plate (8). A square cylinder (15) is fixedly connected to the upper surface of the second horizontal plate (8). A spring (16) is fixedly connected to the inner wall of the square cylinder (15) and the surface of the lower mold (5). A drive mechanism (17) is fixedly connected to the upper surface of the bottom plate (10). A toggle rod (18) is fixedly connected to the inner wall of the drive mechanism (17).

2. The die-casting mold with uniform feeding according to claim 1, characterized in that: The drive mechanism (17) includes a drive motor (171), a rotating shaft (172), and a strip plate (173). The bottom of the drive motor (171) is fixedly connected to the upper surface of the base plate (10). The output end of the drive motor (171) is fixedly connected to the bottom end of the rotating shaft (172) through a coupling. The surface of the rotating shaft (172) and the surface of the actuating rod (18) are both fixedly connected to the inner wall of the strip plate (173).

3. The die-casting mold with uniform feeding according to claim 1, characterized in that: A hydraulic push rod (19) is fixedly connected to the inner wall of the square tube (15), and one end of the hydraulic push rod (19) is in contact with the surface of the lower mold (5).

4. The die-casting mold with uniform feeding according to claim 2, characterized in that: The centers of the rotating shaft (172), cylinder (12), second horizontal plate (8) and lower mold (5) are all on the same vertical line.

5. A die-casting mold with uniform feeding according to claim 1, characterized in that: A first square ring (20) is fixedly connected to the upper surface of the first horizontal plate (4), and a second square ring (21) is fixedly connected to the upper surface of the first horizontal plate (4). A sealing ring (22) is fixedly connected to the upper surface of both the first square ring (20) and the upper surface of the second square ring (21). An inlet hole (23) is provided inside the sealing ring (22), and a sealing plug (24) is threaded onto the inner wall of the inlet hole (23).

6. A die-casting mold with uniform feeding according to claim 2, characterized in that: The upper surface of the strip plate (173) is provided with a first groove (25), and the surface of the rotating shaft (172) is provided with a second groove (26). The inner walls of the first groove (25) and the inner walls of the second groove (26) are both fixedly connected with reinforcing blocks (27).