Deep-cavity die-casting die

Abstract

The deep-cavity die-casting die is applied to the field of dies and comprises an upper die body and a lower die body, an upper cavity matched with a workpiece is formed in the face, facing the lower die body, of the upper die body, a lower cavity matched with the workpiece is formed in the face, facing the upper die body, of the lower die body, the upper cavity and the lower cavity are connected to form a cavity, and a containing groove is formed in the upper die body; a mounting plate matched with the containing groove is erected in the containing groove, and a pushing unit used for pushing the workpiece to be demolded in the deep cavity is arranged on the mounting plate. The mold has the technical effects that the upper mold and the lower mold are separated during mold opening, a gap exists between the upper mold and the lower mold, at the moment, the pushing unit is started, thrust is provided for the deep cavity of the workpiece, the deep cavity of the workpiece is ejected out of the upper cavity through the thrust, the risk that the deep cavity of the workpiece adheres to the upper mold is reduced, and the working efficiency is improved. Therefore, overall demolding of subsequent workpieces is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a deep cavity die-casting mold. Background Art

[0002] Die casting molds are important tools used in metal die casting processes. They are mainly used to inject molten metal into the mold cavity and form the required metal parts or products after cooling and solidification.

[0003] Announcement No. CN208542942U discloses a die-casting mold, including a fixed mold, a movable mold and a local pressurization structure; the movable mold and the fixed mold are combined to limit and form a cavity, the cavity including a main body cavity, a metal liquid containing cavity and a column head deep cavity that are interconnected, the metal liquid containing cavity is arranged on one side of the main body cavity, and the column head deep cavity is arranged on the other side of the main body cavity; the local pressurization structure includes a pressurization rod, one end of the pressurization rod is adapted to be mounted in the metal liquid containing cavity, and can move axially to press the metal liquid in the metal liquid containing cavity into the main body cavity, so that the metal liquid in the main body cavity adjacent to the column head deep cavity fully fills the column head deep cavity.

[0004] When the above-mentioned die-casting mold is used to cast a workpiece with a deep cavity, the deep cavity of the workpiece is prone to adhere to the mold, resulting in the product being unable to be properly demoulded and low production efficiency. Summary of the Invention

[0005] In order to help solve the problem in the related art that when a die-casting mold is used to cast a workpiece with a deep cavity, the deep cavity of the workpiece is easily adhered to the mold, resulting in the product being unable to be demolded normally and low production efficiency, the present application provides a deep-cavity die-casting mold, which adopts the following technical solution: it includes an upper mold and a lower mold, and the upper mold is provided with an upper cavity matching the workpiece on the surface facing the lower mold, and the lower mold is provided with a lower cavity matching the workpiece on the surface facing the upper mold, the upper cavity and the lower cavity are connected to form a mold cavity, a placement groove is provided in the upper mold, a mounting plate matching the placement groove is mounted in the placement groove, and a pushing unit for pushing the deep cavity of the workpiece to be demolded is provided on the mounting plate.

[0006] In a specific feasible implementation scheme, the pushing unit includes several pushing rods arranged on the surface of the mounting plate facing the lower mold, and several of the pushing rods correspond to the deep cavity of the workpiece. A pressure plate is provided in the upper mold, and several mounting grooves are provided on the surface of the mounting plate facing away from the lower mold. Elastic parts are respectively provided in several of the mounting grooves, and several of the elastic parts are respectively pressed between the pressure plate and the bottom of the mounting groove.

[0007] In a specific embodiment, the plurality of elastic members are respectively compression springs.

[0008] In a specific possible implementation scheme, a plurality of mounting bolts are passed through the pressing plate, a plurality of mounting slots respectively matching the mounting bolts are opened on the upper mold, and the ends of the plurality of mounting bolts facing the mounting slots are respectively threadedly connected in the plurality of mounting slots.

[0009] In a specific possible implementation scheme, a plurality of support columns are provided on the surface of the mounting plate facing the lower mold, and the plurality of support columns are all passed through the upper mold, and the end surfaces of the plurality of support columns facing the lower mold are flush with the end surface of the upper mold facing the lower mold.

[0010] In a specific possible implementation manner, outer edges of several of the push rods are respectively provided with reinforcement blocks.

[0011] In a specific possible implementation scheme, a guide block is provided in the upper mold, a flow channel communicating with the mold cavity is opened in the guide block, and a feed pipe communicating with the flow channel is provided on the guide block.

[0012] In a specific embodiment, a feeding funnel is provided at one end of the feeding tube facing away from the lower mold.

[0013] In a specific possible implementation scheme, a guide post is provided on the surface of the upper mold facing the lower mold, and a guide groove matching the guide post is opened on the lower mold, and the guide post is inserted into the guide groove.

[0014] In a specific possible implementation scheme, a bushing matching the guide groove is provided in the guide groove, and the guide post is inserted into the bushing and contacts the inner edge of the bushing.

[0015] In summary, the present application has at least the following beneficial technical effects: the upper mold and the lower mold are tightly fitted together, the operator injects molten metal into the mold cavity, and the workpiece is in a stationary state in the mold cavity while the molten metal is being formed in the mold cavity. When the mold is opened, the upper mold and the lower mold are separated, so that there is a gap between the upper mold and the lower mold. At this time, the ejection unit is activated to provide thrust to the deep cavity of the workpiece, and the deep cavity of the workpiece is ejected from the upper cavity by the thrust, reducing the risk of the deep cavity of the workpiece sticking to the upper mold, thereby facilitating the subsequent overall demolding of the workpiece and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a structural diagram used to reflect the upper cavity in the embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the structure of the pressure plate in the embodiment of the present application.

[0019] Figure 4It is a schematic structural diagram for illustrating a compression spring in an embodiment of the present application.

[0020] Figure numerals: 1. upper mold; 2. lower mold; 3. upper cavity; 4. mounting plate; 5. ejector rod; 6. workpiece; 7. pressure plate; 8. mounting groove; 9. compression spring; 10. support column; 11. reinforcement block; 12. guide block; 13. flow channel; 14. feed pipe; 15. feed funnel; 16. guide column; 17. guide groove; 18. bushing; 19. deep cavity. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The embodiments of the present application disclose a deep cavity die-casting mold.

[0023] Reference Figure 1 and Figure 2 The deep cavity 19 die-casting mold includes an upper mold 1 and a lower mold 2. An upper cavity 3 matching the size of the workpiece 6 is opened on the surface of the upper mold 1 facing the lower mold 2, and a lower cavity matching the size of the workpiece 6 is opened on the surface of the lower mold 2 facing the upper mold 1. The upper cavity 3 is connected to the lower cavity to form a mold cavity. A placement groove is opened in the upper mold 1, and a mounting plate 4 matching the placement groove is mounted in the placement groove. A pushing unit for pushing the workpiece 6 to be demolded at the deep cavity 19 is provided on the mounting plate 4. In the embodiment of the present application, the pushing unit and the deep cavity 19 of the workpiece 6 are located on the same straight line in the vertical direction.

[0024] Therefore, the upper mold 1 and lower mold 2 are tightly fitted together, and the operator injects molten metal into the mold cavity. The workpiece 6 remains stationary within the mold cavity while the molten metal is formed. When the mold is opened, the upper mold 1 and lower mold 2 are separated, creating a gap between them. At this time, the ejection unit is activated, providing a thrust to the deep cavity 19 of the workpiece 6. This thrust ejects the workpiece 6 from the upper cavity 3, reducing the risk of the deep cavity 19 of the workpiece 6 sticking to the upper mold 1. This facilitates subsequent demolding of the entire workpiece 6 and improves production efficiency.

[0025] Reference Figure 1 and Figure 2 A cylindrical guide block 12 is installed in the upper mold 1, and a flow channel 13 communicating with the cavity is opened in the guide block 12. A feed pipe 14 communicating with the flow channel 13 is provided on the guide block 12, and a feed funnel 15 is provided at the end of the feed pipe 14 facing away from the lower mold 2. The feed funnel 15 guides and converges the injected molten metal, thereby improving the efficiency of the molten metal flowing into the flow channel 13.

[0026] Reference Figure 1 and Figure 2Four evenly spaced guide posts 16 are installed on the surface of the upper mold 1 facing the lower mold 2. A guide groove 17 matching the size of the guide posts 16 is provided on the lower mold 2. The guide posts 16 are inserted into the guide groove 17. A bushing 18 matching the size of the guide groove 17 is installed in the guide groove 17. The guide posts 16 are inserted into the bushing 18 and contact the inner edge of the bushing 18. The bushing 18 supports the guide posts 16 and has self-lubricating properties, which can reduce the wear between the guide posts 16 and the guide groove 17. Therefore, when the operator needs to lift the upper mold 1 to remove the formed workpiece 6, the guide posts 16 move along the direction of the guide groove 17. The guide groove 17 limits the position of the guide posts 16, thereby improving the stability when lifting the upper mold 1 and facilitating the determination of the relative position between the upper cavity 3 and the lower cavity.

[0027] Reference Figure 2 and Figure 3 The ejection unit includes a plurality of ejector rods 5 provided on the surface of the mounting plate 4 facing the lower mold 2. The outer edges of the plurality of ejector rods 5 are fixedly connected to reinforcement blocks 11, which enhance the structural strength and rigidity of the ejector rods 5. The plurality of ejector rods 5 correspond to the deep cavities 19 of the workpiece 6, respectively. In the embodiment of the present application, the plurality of ejector rods 5 are evenly arranged around the deep cavities 19 of the workpiece 6. A pressing plate 7 is provided in the upper mold 1. The pressing plate 7 is provided with a plurality of mounting bolts. The upper mold 1 is provided with a plurality of threaded grooves that match the mounting bolts. The ends of the plurality of mounting bolts facing the threaded grooves are threadedly connected to the plurality of threaded grooves. The operator can remove the lower pressing plate 7 from the upper mold 1 by disassembling the bolts, which provides greater flexibility and realizes the detachable connection of the pressing plate 7.

[0028] Reference Figure 2 and Figure 3 The mounting plate 4 has a plurality of mounting grooves 8 on its surface facing away from the lower mold 2. Each of the mounting grooves 8 has an elastic member installed therein. These elastic members are respectively pressed against the bottom of the pressing plate 7 and the mounting groove 8. Each of the elastic members is a compression spring 9. Therefore, when the mold is opened, the upper mold 1 and the lower mold 2 are separated, creating a gap between them. Due to the elastic compression of the compression spring 9, the compression spring 9 provides thrust to the mounting plate 4. The mounting plate 4 drives the plurality of ejector rods 5 to push the deep cavity 19 of the workpiece 6. The ejector rods 5 use this thrust to eject the deep cavity 19 of the workpiece 6 from the upper cavity 3, reducing the possibility of the deep cavity 19 of the workpiece 6 sticking to the upper mold 1.

[0029] Reference Figure 2 and Figure 3Four evenly distributed support columns 10 are installed on the surface of the mounting plate 4 facing the lower mold 2. The four support columns 10 all pass through the upper mold 1, and the end surfaces of the four support columns 10 facing the lower mold 2 are flush with the end surface of the upper mold 1 facing the lower mold 2. The upper mold 1 limits the positions of the four support columns 10, reducing the possibility of position deviation of the mounting plate 4 and the push rod 5 during movement, and improving the stability of the push rod 5 in pushing the workpiece 6.

[0030] The implementation principle of the embodiment of the present application is as follows: the upper mold 1 and the lower mold 2 are tightly fitted together, and the operator injects molten metal into the mold cavity. When the molten metal is formed in the mold cavity, the workpiece 6 is in a stationary state in the mold cavity. When the mold is opened, the upper mold 1 and the lower mold 2 are separated to form a gap between the upper mold 1 and the lower mold 2. Due to the elastic compression of the compression spring 9, the compression spring 9 provides a thrust to the mounting plate 4. The mounting plate 4 drives a number of ejector rods 5 to push the deep cavity 19 of the workpiece 6. The deep cavity 19 of the workpiece 6 is ejected from the upper cavity 3 by the thrust, reducing the risk of the deep cavity 19 of the workpiece 6 sticking to the upper mold 1, thereby facilitating the subsequent overall demolding of the workpiece 6 and improving the demolding efficiency and production efficiency of the workpiece 6.

[0031] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A deep cavity die casting mold, characterized by: The invention comprises an upper mold (1) and a lower mold (2); an upper cavity (3) matching the workpiece (6) is provided on the surface of the upper mold (1) facing the lower mold (2); a lower cavity matching the workpiece (6) is provided on the surface of the lower mold (2) facing the upper mold (1); the upper cavity (3) and the lower cavity are connected to form a mold cavity; a placement groove is provided in the upper mold (1); a mounting plate (4) matching the placement groove is mounted in the placement groove; a pushing unit for pushing the workpiece (6) to be demoulded at a deep cavity (19) is provided on the mounting plate (4); The ejection unit comprises a plurality of ejection rods (5) arranged on the surface of the mounting plate (4) facing the lower mold (2), and the plurality of ejection rods (5) respectively correspond to the deep cavities (19) of the workpiece (6). A pressure plate (7) is provided in the upper mold (1), and a plurality of mounting grooves (8) are provided on the surface of the mounting plate (4) facing away from the lower mold (2). Elastic members are respectively provided in the plurality of mounting grooves (8), and the plurality of elastic members are respectively pressed between the pressure plate (7) and the bottom of the mounting groove (8).

2. The deep cavity die-casting mold according to claim 1, characterized in that: The plurality of elastic members are respectively compression springs (9).

3. The deep cavity die-casting mold according to claim 1, characterized in that: The pressing plate (7) is provided with a plurality of mounting bolts, the upper mold (1) is provided with a plurality of thread grooves respectively matching the mounting bolts, and the ends of the plurality of mounting bolts facing the thread grooves are respectively threadedly connected in the plurality of thread grooves.

4. The deep cavity die-casting mold according to claim 1, characterized in that: A plurality of support columns (10) are provided on the surface of the mounting plate (4) facing the lower mold (2), and the plurality of support columns (10) are all passed through the upper mold (1), and the end surfaces of the plurality of support columns (10) facing the lower mold (2) are flush with the end surface of the upper mold (1) facing the lower mold (2).

5. The deep cavity die-casting mold according to claim 1, characterized in that: The outer edges of the plurality of push rods (5) are respectively provided with reinforcement blocks (11).

6. The deep cavity die-casting mold according to claim 1, characterized in that: A guide block (12) is provided in the upper mold (1), a flow channel (13) communicating with the mold cavity is provided in the guide block (12), and a feed pipe (14) communicating with the flow channel (13) is provided on the guide block (12).

7. The deep cavity die-casting mold according to claim 6, characterized in that: A feeding funnel (15) is provided at one end of the feeding pipe (14) facing away from the lower mold (2).

8. The deep cavity die-casting mold according to claim 1, characterized in that: A guide post (16) is provided on the surface of the upper mold (1) facing the lower mold (2), and a guide groove (17) matching the guide post (16) is provided on the lower mold (2), and the guide post (16) is inserted into the guide groove (17).

9. The deep cavity die-casting mold according to claim 8, characterized in that: A bushing (18) matching the guide groove (17) is provided in the guide groove (17), and the guide column (16) is inserted into the bushing (18) and contacts the inner edge of the bushing (18).

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