Die-casting die for precise die casting

Abstract

The die-casting die comprises a base, an upper die body and a lower die body, a sprue gate is formed in the upper die body in a penetrating mode, a support is fixedly installed on the top of the base, and a lifting assembly used for vertically lifting the upper die body is arranged on the top of the support. In the application, the output end of the pushing piece pushes the upper die through the pushing frame until the upper die is lapped to the top of the lower die, in the process, the pushing frame is linked with the connecting frame, and the bottom of the connecting frame pulls the sealing block through the vertical seat until the sealing block is stably combined into the combination groove, so that the air tightness between the lower die and the sealing block is ensured; then pouring liquid is guided into the position between the upper die and the lower die through the pouring opening, after die casting is completed, the pushing piece pulls the upper die upwards to reset through the pushing frame, the connecting frame is in linkage with the sealing block through the vertical base, the sealing block pushes the workpiece upwards, therefore, automatic demolding of the workpiece is completed, and the using convenience of the die-casting die of the precise die-casting piece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a die-casting mold for precision castings. Background Art

[0002] A die-casting mold is a method of casting liquid die forging. Generally, it refers to a metal processing method in which molten metal is cast into the cavity of the mold at low speed or high speed and then cooled and formed.

[0003] Chinese Patent Publication No. CN219402272U, published on July 25, 2023, discloses a die-casting mold for precision castings, including: a mold body, including an upper mold and a lower mold. An inlet is provided on the surface of the upper mold, and the inlet penetrates the surface of the upper mold; an ejection mechanism, including a regulation chamber, which is connected to the lower mold by bolts. A groove is provided on the surface of the regulation chamber, and a pressing plate is slidably connected to the inner side of the groove. A connecting cylinder is fixedly connected to the surface of the pressing plate.

[0004] In the existing die-casting mold for precision castings such as the above, the ejection effect of the casting in the lower mold by the ejector block is achieved through the through connection between the ejector block and the lower mold. In the specific implementation process, after die-casting and forming, it is necessary to wait for the upper and lower molds to separate, and then the ejector block can be manually pushed to eject the workpiece. The overall operation is rather inconvenient. Therefore, it is urgent to propose a corresponding die-casting mold for precision castings to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a die-casting mold for precision castings to solve the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A die-casting mold for precision castings includes a base, an upper mold and a lower mold. A pouring port is provided through the upper mold. A support is fixedly installed at the top of the base. A lifting component for vertically lifting the upper mold is provided at the top of the support. The lower mold is fixedly connected to the support. A sealing block is snap-connected to the inner surface of the bottom of the lower mold through a combination groove. A linkage component for the linkage between the lifting component and the sealing block is provided between the upper mold and the lower mold.

[0008] Preferably, a connecting ring fixedly connected to the top of the upper mold is provided inside the pouring port, and a plurality of guide rings distributed in a ring shape are fixedly connected to the bottom of the connecting ring.

[0009] Preferably, a support frame is fixedly connected to the top of the connecting ring, and the support frame is fixedly connected to the top of the upper mold through a fastening rod.

[0010] Preferably, a sliding sleeve is fixedly connected to the outer wall of the upper die, and the inner wall of the sliding sleeve is slidably connected to the outer wall of the vertical end of the bracket.

[0011] Preferably, the lifting component includes a pushing member fixedly connected to the top of the bracket. The output end of the pushing member is fixedly connected to a U-shaped pushing frame, and the bottom of the vertical end of the pushing frame is fixedly connected to the top of the upper die.

[0012] Preferably, the linkage component includes a connecting frame fixedly connected to the pushing frame. The top of the horizontal end of the connecting frame is fixedly connected to a vertical seat through a locking rod, and the top of the vertical seat is fixedly connected to the sealing block.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. In this application, the output end of the pushing member pushes the upper die through the pushing frame until the upper die is placed on the top of the lower die. During this process, the pushing frame drives the connecting frame, and the bottom of the connecting frame pulls the sealing block through the vertical seat until the sealing block is stably combined into the combining groove, thereby ensuring the airtightness between the lower die and the sealing block. Then, the pouring liquid is introduced between the upper die and the lower die through the pouring port. After the die casting is completed, the pushing member pulls the upper die upward to reset through the pushing frame, and the connecting frame drives the sealing block through the vertical seat. The sealing block pushes the workpiece upward to complete the automatic demolding of the workpiece, ensuring the convenience of using the die casting mold for precision castings.

[0015] 2. In this application, during the process of injecting the pouring liquid into the mold through the pouring port, the guiding ring and the connecting ring can guide the pouring liquid to avoid splashing of the pouring liquid and improve the safety performance of the die casting mold. The connecting ring is fixed to the upper die through the support frame and the fastening rod, thereby ensuring the stable position of the connecting ring while the installation component for the connecting ring does not hinder the pouring of the pouring liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the overall structural schematic diagram provided by an embodiment of the present utility model;

[0017] Figure 2 Shows the structural schematic diagram of the connecting frame provided by an embodiment of the present utility model;

[0018] Figure 3 Shows the structural schematic diagram of the connecting ring provided by an embodiment of the present utility model;

[0019] Figure 4 Shows the structural schematic diagram of the sealing block provided by an embodiment of the present utility model.

[0020] Legend Explanation:

[0021] 1. Base; 2. Bracket; 3. Upper die; 4. Lower die; 5. Pouring port; 6. Pushing member; 7. Pushing frame; 8. Connecting frame; 9. Sliding sleeve; 10. Locking rod; 11. Support frame; 12. Tightening rod; 13. Connecting ring; 14. Guide ring; 15. Sealing block; 16. Vertical base; 17. Combining groove. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0024] A die-casting mold for precision castings includes a base 1, an upper die 3 and a lower die 4. The upper die 3 is provided with a pouring port 5 through it. A bracket 2 is fixedly installed on the top of the base 1. A lifting component for vertically lifting the upper die 3 is provided on the top of the bracket 2. The lower die 4 is fixedly connected to the bracket 2. A sealing block 15 is snap-fitted into the inner wall of the bottom of the lower die 4 through a combining groove 17. And a linkage component for linking the lifting component and the sealing block 15 is provided between the upper die 3 and the lower die 4;

[0025] The output end of the pushing member 6 pushes the upper die 3 through the pushing frame 7 until the upper die 3 is placed on the top of the lower die 4. During this process, the pushing frame 7 is linked to the connecting frame 8. The bottom of the connecting frame 8 pulls the sealing block 15 through the vertical base 16 until the sealing block 15 is stably combined into the combining groove 17, so as to ensure the airtightness between the lower die 4 and the sealing block 15. Then the pouring liquid is introduced between the upper die 3 and the lower die 4 through the pouring port 5. After die-casting is completed, the pushing member 6 pulls the upper die 3 upward through the pushing frame 7 to reset. The connecting frame 8 links the sealing block 15 through the vertical base 16, and the sealing block 15 pushes the workpiece upward, thereby completing the automatic demolding of the workpiece and ensuring the convenience of using the die-casting mold for precision castings.

[0026] Specifically, as Figure 2 and Figure 4As shown, a connecting ring 13 fixedly connected to the top of the upper mold 3 is provided inside the pouring gate 5, and a plurality of guide rings 14 distributed in a ring are fixedly connected to the bottom of the connecting ring 13, and a support frame 11 is fixedly connected to the top of the upper mold 3 through a fastening rod 12. In the process of injecting the pouring liquid into the interior of the mold through the pouring gate 5, the guide ring 14 and the connecting ring 13 can guide the pouring liquid to avoid splashing of the pouring liquid and improve the safety performance of the die-casting mold. At the same time, the connecting ring 13 is fixed to the upper mold 3 through the support frame 11 and the fastening rod 12, thereby ensuring that the position of the connecting ring 13 is stable and the installation component for the connecting ring 13 will not hinder the pouring of the pouring liquid.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the outer wall of the upper mold 3 is fixedly connected with a sliding sleeve 9, and the inner wall of the sliding sleeve 9 is slidably connected to the outer wall of the vertical end of the bracket 2, so as to ensure the stability of the vertical movement of the upper mold 3. The lifting assembly includes a pushing member 6 fixedly connected to the top of the bracket 2, and the output end of the pushing member 6 is fixedly connected to the pushing frame 7 with a U-shaped structure. The bottom of the vertical end of the pushing frame 7 is fixedly connected to the top of the upper mold 3, and the output end of the pushing member 6 pushes the upper mold 3 through the pushing frame 7 until the upper mold 3 is overlapped with the top of the lower mold 4. The linkage assembly includes a connecting frame 8 fixedly connected to the pushing frame 7, and the top of the horizontal end of the connecting frame 8 is fixedly connected to the vertical seat 16 through the locking rod 10, and the top of the vertical seat 16 is fixedly connected to the sealing block 15. The pushing frame 7 is linked to the connecting frame 8, and the bottom of the connecting frame 8 pulls the sealing block 15 through the vertical seat 16 until the sealing block 15 is stably combined into the combining groove 17, so as to ensure the airtightness between the lower mold 4 and the sealing block 15.

[0028] Working principle: The output end of the pusher 6 pushes the upper mold 3 through the pusher frame 7 until the upper mold 3 is overlapped with the top of the lower mold 4. During this process, the pusher frame 7 links the connecting frame 8, and the bottom of the connecting frame 8 pulls the sealing block 15 through the vertical seat 16 until the sealing block 15 is stably combined into the combining groove 17, thereby ensuring the airtightness between the lower mold 4 and the sealing block 15. Then the pouring liquid is introduced into the space between the upper mold 3 and the lower mold 4 through the pouring gate 5. After the die casting is completed, the pusher 6 pulls the upper mold 3 upward through the pusher frame 7 to reset, and the connecting frame 8 links the sealing block 15 through the vertical seat 16. The sealing block 15 pushes the workpiece upward to complete the automatic demoulding of the workpiece, ensuring the convenience of using the die-casting mold for precision die-casting parts. In the process of injecting the pouring liquid into the mold through the pouring port 5, the guide ring 14 and the connecting ring 13 can guide the pouring liquid to avoid splashing of the pouring liquid, thereby improving the safety performance of the die-casting mold. At the same time, the connecting ring 13 is fixed to the upper mold 3 through the support frame 11 and the fastening rod 12, thereby ensuring the stable position of the connecting ring 13 and the installation component for the connecting ring 13 will not hinder the pouring of the pouring liquid.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A die-casting mold for precision die-casting parts, comprising a base (1), an upper mold (3) and a lower mold (4), wherein the upper mold (3) is provided with a pouring port (5) through it, and is characterized in that: A bracket (2) is fixedly mounted on the top of the base (1); a lifting assembly for vertically lifting the upper mold (3) is provided on the top of the bracket (2); the lower mold (4) is fixedly connected to the bracket (2); a sealing block (15) is engaged with the inner surface wall of the bottom of the lower mold (4) via a coupling groove (17); and a linkage assembly for linkage between the lifting assembly and the sealing block (15) is provided between the upper mold (3) and the lower mold (4).

2. The die-casting mold for precision die-casting according to claim 1, characterized in that: A connecting ring (13) fixedly connected to the top of the upper mold (3) is provided inside the pouring port (5), and a plurality of guide rings (14) distributed in an annular shape are fixedly connected to the bottom of the connecting ring (13).

3. The die-casting mold for precision die-casting according to claim 2, characterized in that: The top of the connecting ring (13) is fixedly connected to a support frame (11), and the support frame (11) is fixedly connected to the top of the upper mold (3) via a fastening rod (12).

4. The die-casting mold for precision die-casting according to claim 3, characterized in that: The outer surface wall of the upper mold (3) is fixedly connected with a sliding sleeve (9), and the inner surface wall of the sliding sleeve (9) is slidably connected with the outer surface wall of the vertical end of the bracket (2).

5. The die-casting mold for precision die-casting according to claim 4, characterized in that: The lifting assembly comprises a pusher (6) fixedly connected to the top of the bracket (2); the output end of the pusher (6) is fixedly connected to a pusher frame (7) with a U-shaped structure; the bottom of the vertical end of the pusher frame (7) is fixedly connected to the top of the upper mold (3).

6. The die-casting mold for precision die-casting according to claim 5, characterized in that: The linkage assembly comprises a connecting frame (8) fixedly connected to the pushing frame (7); the top of the horizontal end of the connecting frame (8) is fixedly connected to a vertical seat (16) via a locking rod (10); and the top of the vertical seat (16) is fixedly connected to a sealing block (15).

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