Die-casting die with buffer structure

Abstract

The utility model belongs to the technical field of die-casting dies, and particularly relates to a die-casting die with a buffer structure, which comprises an upper die, the surface of the upper die is sleeved with a slip ring, the upper surface of the slip ring is fixedly connected with a first U-shaped plate, the upper surface of the first U-shaped plate is fixedly connected with a hydraulic push rod, and the upper surface of the hydraulic push rod is fixedly connected with a second U-shaped plate. The upper surface of the hydraulic push rod is fixedly connected with a top plate. According to the die-casting die with the buffer structure, through cooperation of a sliding ring, a sliding groove, a pressing block, a limiting block, a supporting ring, a hollow cylinder, a trapezoidal block, a first spring, a round hole, a cylinder, a damping column, a second U-shaped plate, a threaded hole and a bolt, when the die-casting die is closed, an upper die can slowly move downwards, and the die-casting die is not prone to falling off; and the impact force instantly generated when the upper die and the lower die are assembled is greatly reduced, and the abrasion and damage of the die caused by impact are reduced, so that the service life of the die-casting die is remarkably prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology, and specifically relates to a die casting mold with a buffer structure. 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] During the die-casting process, a significant impact force is generated when the upper and lower molds close. This impact force can not only damage the molds and shorten their service life, but may also cause internal components to loosen, affecting the precision and quality of the die-cast products. Utility Model Content

[0004] The purpose of this invention is to provide a die-casting mold with a buffer structure, which can reduce the impact force when the upper and lower molds are closed, thereby improving the service life of the mold and the quality of the die-cast products.

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

[0006] A die-casting mold with a buffer structure includes an upper mold. A slip ring is fitted onto the surface of the upper mold. A first U-shaped plate is fixedly connected to the upper surface of the slip ring. A hydraulic push rod is fixedly connected to the upper surface of the first U-shaped plate. A top plate is fixedly connected to the upper surface of the hydraulic push rod. Slide grooves are formed on both the left and right sides of the inner wall of the slip ring. Pressing blocks are fixedly connected to both the left and right sides of the upper mold. The surfaces of the pressing blocks are in contact with the inner walls of the slide grooves. Limiting blocks are fixedly connected to the upper surfaces of the pressing blocks and the left and right sides of the upper mold. The bottoms of the limiting blocks are in contact with the upper surface of the slip ring. A column is fixedly connected to the upper surface of the top plate. A bottom plate is fixedly connected to the upper surface of the column. A base plate has a lower mold fixedly connected to its upper surface, a support ring fixedly connected to the surface of the lower mold, a hollow cylinder fixedly connected to its upper surface, a trapezoidal block fitted to the inner wall of the hollow cylinder, a first spring fixedly connected to the side of the trapezoidal block and the inner wall of the support ring, a circular hole on the upper surface of the hollow cylinder, a cylinder fixedly connected to the inner wall of the circular hole, damping columns fitted to the inner wall of the cylinder and the upper surface of the trapezoidal block, a second U-shaped plate fixedly connected to the upper surface of the hollow cylinder, a threaded hole on the upper surface of the second U-shaped plate, a bolt threaded to the inner wall of the threaded hole, and the bottom of the bolt fitting against the upper surface of the damping column.

[0007] The present invention is further configured such that the axis of the bolt coincides with the axis of the damping column, and the diameter of the damping column is larger than the diameter of the bolt.

[0008] The present invention is further configured such that hollow blocks are fixedly connected to both the left and right sides of the slip ring, and guide sleeves are fixedly connected to the inner walls of the hollow blocks, with the inner walls of the guide sleeves fitting against the surface of the column.

[0009] The present invention is further configured such that a ring is fitted to the surface of the cylinder, a second spring is fixedly connected to the bottom of the ring, a rectangular hole is opened on the surface of the cylinder, a groove is opened on the surface of the damping column, a slider is fixedly connected to the inner wall of the ring, and the inner walls of the rectangular hole and the groove are both fitted to the surface of the slider.

[0010] The present invention is further configured such that the elastic force of the second spring is greater than the sum of the weights of the ring, the slider, and the damping column.

[0011] The present invention is further configured such that the trapezoidal block is located directly below the pressing block, and the side of the trapezoidal block closest to the lower mold is an inclined surface.

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

[0013] This utility model discloses a die-casting mold with a buffer structure, which includes a slip ring, a sliding groove, a pressing block, a limiting block, a support ring, a hollow cylinder, a trapezoidal block, a first spring, a circular hole, a cylindrical cylinder, a damping column, a second U-shaped plate, a threaded hole, and bolts. When the hydraulic push rod controls the upper mold to move downward, the pressing block presses the inclined surface on the trapezoidal block, and the pressing force causes the trapezoidal block to slide inside the hollow cylinder. At this time, through the elastic force of the first spring and the friction between the damping column and the trapezoidal block, the upper mold can move downward slowly, which greatly reduces the impact force generated instantaneously when the upper and lower molds close, reduces the wear and damage to the mold caused by the impact, and thus significantly improves the service life of the die-casting mold.

[0014] This utility model discloses a die-casting mold with a buffer structure. Through the cooperation of a ring, a second spring, a rectangular hole, a groove, and a slider, the damping column can automatically move upward a certain distance after the bolt is unscrewed in the threaded hole, and the top of the damping column will be exposed from the cylinder. At this time, the damping column can be quickly removed from the cylinder, making it more convenient for users to replace the damping column. 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 right 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 This is a top view of the slip ring of this utility model;

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

[0021] Figure 7 This is a top view of the hollow cylinder in this utility model;

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

[0023] Figure 9 This is a bottom view of the damping column in this utility model;

[0024] Figure 10 This is a top view of the second U-shaped plate in this utility model;

[0025] Figure 11 This is a top view of the ring in this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Upper mold; 2. Slip ring; 3. First U-shaped plate; 4. Hydraulic push rod; 5. Top plate; 6. Slide groove; 7. Pressing block; 8. Limiting block; 9. Column; 10. Base plate; 11. Lower mold; 12. Support ring; 13. Hollow cylinder; 14. Trapezoidal block; 15. First spring; 16. Round hole; 17. Cylinder; 18. Damping column; 19. Second U-shaped plate; 20. Threaded hole; 21. Bolt; 22. Hollow block; 23. Guide sleeve; 24. Circular ring; 25. Second spring; 26. Rectangular hole; 27. Groove; 28. Slider. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figures 1 to 7 As shown, a die-casting mold with a buffer structure includes an upper mold 1. A slip ring 2 is fitted onto the surface of the upper mold 1. A first U-shaped plate 3 is fixedly connected to the upper surface of the slip ring 2. A hydraulic push rod 4 is fixedly connected to the upper surface of the first U-shaped plate 3. A top plate 5 is fixedly connected to the upper surface of the hydraulic push rod 4. Slide grooves 6 are formed on both the left and right sides of the inner wall of the slip ring 2. Pressing blocks 7 are fixedly connected to both the left and right sides of the upper mold 1. The surface of the pressing blocks 7 is in contact with the inner wall of the slide grooves 6. Limiting blocks 8 are fixedly connected to the upper surface of the pressing blocks 7 and both the left and right sides of the upper mold 1. The bottom of the limiting blocks 8 is in contact with the upper surface of the slip ring 2. A column 9 is fixedly connected to the upper surface of the top plate 5. A bottom plate 10 is fixedly connected to the upper surface of the column 9. A lower mold 11 is fixedly connected to the upper surface of the bottom plate 10. A support ring 12 is fixedly connected to the surface of the lower mold 11. A hollow cylinder is fixedly connected to the upper surface of the bottom plate 10. 13. A trapezoidal block 14 is fitted to the inner wall of the hollow cylinder 13. The trapezoidal block 14 is located directly below the pressing block 7. The side of the trapezoidal block 14 near the lower mold 11 is inclined. A first spring 15 is fixedly connected to the side of the trapezoidal block 14 and the inner wall of the support ring 12. A circular hole 16 is opened on the upper surface of the hollow cylinder 13. A cylinder 17 is fixedly connected to the inner wall of the circular hole 16. A damping column 18 is fitted to the inner wall of the cylinder 17 and the upper surface of the trapezoidal block 14. A second U-shaped plate 19 is fixedly connected to the upper surface of the hollow cylinder 13. A threaded hole 20 is opened on the upper surface of the second U-shaped plate 19. A bolt 21 is threadedly connected to the inner wall of the threaded hole 20. The bottom of the bolt 21 is fitted to the upper surface of the damping column 18. Hollow blocks 22 are fixedly connected to both sides of the slip ring 2. A guide sleeve 23 is fixedly connected to the inner wall of the hollow block 22. The inner wall of the guide sleeve 23 is fitted to the surface of the column 9.

[0031] The axis of bolt 21 coincides with the axis of damping column 18, and the diameter of damping column 18 is larger than the diameter of bolt 21.

[0032] It should be noted that the upper mold 1 can slide up and down within the slip ring 2, and through the cooperation of the limiting block 8, the slip ring 2, and the first U-shaped plate 3, the upper mold 1 and the slip ring 2 cannot be separated. The upper mold 1 can be moved up or down by the hydraulic push rod 4, and the trapezoidal block 14 can only move left and right by the hollow cylinder 13. When the hydraulic push rod 4 controls the upper mold 1 to move down, the pressing block 7 will press the inclined surface on the trapezoidal block 14, and the pressing force will cause the trapezoidal block 14 to slide within the hollow cylinder 13. At this time, the elastic force of the first spring 15 and the damping column 18 and the trapezoidal block 14 will be used to move the upper mold 1 up and down. The friction between blocks 14 allows the upper mold 1 to move slowly downwards, greatly reducing the impact force generated when the upper mold 1 and the lower mold 11 are closed, thus reducing wear and damage to the mold caused by the impact. Through the cooperation of the second U-shaped plate 19, threaded hole 20 and bolt 21, the damping column 18 can be fixed inside the cylinder 17. At the same time, by rotating the bolt 21, the pressing force of the damping column 18 on the trapezoidal block 14 can be adjusted, and by adjusting the pressing force of the damping column 18 on the trapezoidal block 14, the friction force between the damping column 18 and the trapezoidal block 14 can be changed.

[0033] like Figures 1 to 11 As shown, a ring 24 is attached to the surface of the cylinder 17, and a second spring 25 is fixedly connected to the bottom of the ring 24. A rectangular hole 26 is opened on the surface of the cylinder 17, and a groove 27 is opened on the surface of the damping column 18. A slider 28 is fixedly connected to the inner wall of the ring 24. The inner walls of the rectangular hole 26 and the inner walls of the groove 27 are both attached to the surface of the slider 28.

[0034] Among them, the elastic force of the second spring 25 is greater than the sum of the weights of the ring 24, the slider 28 and the damping column 18.

[0035] It should be noted that after the damping column 18 is fixed inside the cylinder 17, the second spring 25 can be compressed by the cooperation of the slider 28 and the groove 27. When the bolt 21 is unscrewed from the threaded hole 20, the damping column 18 can automatically move upward a certain distance by the elastic force of the second spring 25, and the top of the damping column 18 will be exposed from inside the cylinder 17. At this time, the damping column 18 can be quickly removed from the cylinder 17, which makes it more convenient for the user to replace the damping column 18.

[0036] The working principle of this utility model is as follows: When the die-casting mold is closed, the upper mold 1 is controlled to move downward by the hydraulic push rod 4. Before the upper mold 1 contacts the lower mold 11, the pressing block 7 first contacts the inclined surface on the trapezoidal block 14. At this time, the pressing block 7 will press the inclined surface on the trapezoidal block 14 and make the trapezoidal block 14 slide in the hollow cylinder 13 by pressing force. At this time, the upper mold 1 can be moved downward slowly by the elastic force of the first spring 15 and the friction between the damping column 18 and the trapezoidal block 14, which greatly reduces the impact force generated when the upper mold 1 and the lower mold 11 are closed, and reduces the wear and damage of the mold caused by the impact.

[0037] When the die-casting mold is closed, the upper surface of the upper mold 1 is in contact with the inner wall of the first U-shaped plate 3. At this time, after the die-casting mold is closed by the first U-shaped plate 3, no gap will be generated between the upper mold 1 and the lower mold 11.

[0038] When the die-casting mold is opened, the slip ring 2 is controlled to move upward by the hydraulic push rod 4. When the slip ring 2 contacts the limit block 8, the upper mold 1 moves upward together with the slip ring 2 through the cooperation of the slip ring 2 and the limit block 8, and the upper mold 1 separates from the lower mold 11.

[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 a buffer structure, characterized in that: The system includes an upper mold (1), on the surface of which a slip ring (2) is fitted. A first U-shaped plate (3) is fixedly connected to the upper surface of the slip ring (2). A hydraulic push rod (4) is fixedly connected to the upper surface of the first U-shaped plate (3). A top plate (5) is fixedly connected to the upper surface of the hydraulic push rod (4). Slide grooves (6) are provided on both the left and right sides of the inner wall of the slip ring (2). Pressing blocks (7) are fixedly connected to both the left and right sides of the upper mold (1). The surface of the pressing block (7) is in contact with the inner wall of the slide groove (6). Limiting blocks (8) are fixedly connected to the upper surface of the pressing block (7) and both the left and right sides of the upper mold (1). The bottom of the limiting block (8) is in contact with the upper surface of the slip ring (2). A column (9) is fixedly connected to the upper surface of the top plate (5). A bottom plate (10) is fixedly connected to the upper surface of the column (9). A lower mold is fixedly connected to the upper surface of the bottom plate (10). (11) A support ring (12) is fixedly connected to the surface of the lower mold (11), and a hollow cylinder (13) is fixedly connected to the upper surface of the base plate (10). A trapezoidal block (14) is fitted to the inner wall of the hollow cylinder (13). A first spring (15) is fixedly connected to the side of the trapezoidal block (14) and the inner wall of the support ring (12). A circular hole (16) is opened on the upper surface of the hollow cylinder (13), and the inner wall of the circular hole (16) is... A cylinder (17) is fixedly connected. Damping columns (18) are attached to the inner wall of the cylinder (17) and the upper surface of the trapezoidal block (14). A second U-shaped plate (19) is fixedly connected to the upper surface of the hollow cylinder (13). A threaded hole (20) is opened on the upper surface of the second U-shaped plate (19). A bolt (21) is threaded to the inner wall of the threaded hole (20). The bottom of the bolt (21) is attached to the upper surface of the damping column (18).

2. The die-casting mold with a buffer structure according to claim 1, characterized in that: The axis of the bolt (21) coincides with the axis of the damping column (18), and the diameter of the damping column (18) is larger than the diameter of the bolt (21).

3. A die-casting mold with a buffer structure according to claim 1, characterized in that: Hollow blocks (22) are fixedly connected to both the left and right sides of the slip ring (2), and guide sleeves (23) are fixedly connected to the inner wall of the hollow blocks (22). The inner wall of the guide sleeves (23) is in contact with the surface of the column (9).

4. A die-casting mold with a buffer structure according to claim 1, characterized in that: A ring (24) is attached to the surface of the cylinder (17), and a second spring (25) is fixedly connected to the bottom of the ring (24). A rectangular hole (26) is opened on the surface of the cylinder (17), and a groove (27) is opened on the surface of the damping column (18). A slider (28) is fixedly connected to the inner wall of the ring (24), and the inner walls of the rectangular hole (26) and the groove (27) are both attached to the surface of the slider (28).

5. A die-casting mold with a buffer structure according to claim 4, characterized in that: The elastic force of the second spring (25) is greater than the sum of the weights of the ring (24), the slider (28), and the damping column (18).

6. A die-casting mold with a buffer structure according to claim 1, characterized in that: The trapezoidal block (14) is located directly below the pressing block (7), and the side of the trapezoidal block (14) closest to the lower mold (11) is inclined.

Images