Superplastic forming die

Abstract

The utility model relates to the technical field of superplastic molds, and discloses a superplastic forming mold which comprises a lower mold and an upper mold, a mold hole is formed in the front side wall face of the upper mold, a vacuum device is arranged at the rear side position of the upper mold, and the vacuum device comprises a vacuum generator. A connecting disc is arranged between the vacuum generator and the upper mold; a second sealing frame is arranged at the rear end of the vacuum generator; comprising a sealing device, the sealing device comprises two fixing cylinders, the front sides of the two fixing cylinders are each provided with a telescopic rod, the sealing device further comprises two fixing blocks, the rear ends of the two fixing blocks are in a hollowed-out state, and an abutting rod is arranged in a cavity of each fixing block. In conclusion, through the arrangement of the vacuum device and the sealing device, the mold hole can be in a vacuum state through the vacuum device, the situation that gas exists in a cavity of the mold hole to affect the superplastic forming operation is prevented, and the upper mold and the lower mold can be in a sealed state through the sealing device.

Description

Technical Field

[0001] This utility model belongs to the field of superplastic mold technology, specifically, it relates to a superplastic forming mold. Background Technology

[0002] In the production and processing of aluminum alloys, injection molding is usually required. However, the inventors have discovered the following problems with the existing molds used in aluminum alloy production and processing:

[0003] The prior art discloses a superplastic forming mold and its usage method (202311289453.6), including an upper mold and a lower mold. The upper mold has an inwardly recessed inner groove for forming. The upper mold and the lower mold correspond to each other. When the upper mold and the lower mold are closed, they clamp the part plate in the middle. The inner groove has a plurality of upper air holes, which are connected to an upper air pipe. One end of the upper air pipe passes through the upper mold and the other end is on the outside of the upper mold. The lower mold has a lower air hole.

[0004] Existing technology uses a sealed cavity to create a vacuum chamber to prevent gas from affecting the injection molding process. However, the sealed cavity may leak some air during use, and it is also relatively cumbersome to use. Therefore, existing technology has certain drawbacks.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A superplastic forming mold, wherein:

[0008] It includes a lower mold and an upper mold. A mold hole is opened on the front side wall of the upper mold. A vacuum device is set at the rear side of the upper mold. The vacuum device includes a vacuum generator. A connecting plate is set between the vacuum generator and the upper mold. A second sealing frame is set at the rear end of the vacuum generator.

[0009] It includes a sealing device, which includes two fixed cylinders, each with a telescopic rod on its front side, and two fixed blocks. The rear ends of the two fixed blocks are hollowed out, and a stop rod is installed inside their cavities.

[0010] In a preferred embodiment of this utility model, the front wall of the connecting plate is hollowed out and is fixedly connected to the rear wall of the upper mold. The front wall of the second sealing frame is also hollowed out and is fixedly connected to the rear wall of the upper mold.

[0011] In a preferred embodiment of the present invention, the vacuum generator has a second sealing frame and a connecting plate passing through both ends. A through hole is provided at both the left and right ends of the front side wall of the upper mold. A limiting groove is provided at both the upper and lower ends of the front side wall of the upper mold. Two limiting blocks are fixedly installed on the rear side wall of the lower mold, and the limiting groove and the limiting block are positioned corresponding to each other.

[0012] In a preferred embodiment of this utility model, a mold plate is provided inside the cavity of the mold hole, and two telescopic rods are respectively fixedly installed at the left and right ends of the rear side wall of the mold plate, and two fixed cylinders are respectively fixedly installed at the left and right ends of the rear side wall of the cavity of the connecting plate.

[0013] In a preferred embodiment of this utility model, a spring is fixedly installed on the rear side wall of each of the two telescopic rods, and the other end of each spring is fixedly connected to the rear side wall of the cavity of each of the two fixed cylinders. A connecting rod is fixedly installed on the left and right side walls of the mold plate. The connecting rod is L-shaped, and the front ends of the two connecting rods are set in the cavity of the perforation.

[0014] In a preferred embodiment of the present invention, a first sealing frame is fixedly installed on the rear side wall of the lower mold. A movable hole is provided on both the left and right side walls of the first sealing frame. A handle is provided at both the left and right ends of the first sealing frame. Two fixing blocks are located at the left and right ends of the cavity of the first sealing frame, corresponding to the positions of the handles.

[0015] In a preferred embodiment of this utility model, the front sidewalls of the two fixing blocks are fixedly connected to the rear sidewall of the first sealing frame, and a movable rod is fixedly installed at the end of each of the two handles that are close to each other. The movable rod passes through the movable hole and is fixedly connected to the corresponding abutment.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. In summary, by setting up a vacuum device and a sealing device, the mold hole can be made into a vacuum state by the vacuum device, preventing gas in the cavity from affecting the superplastic molding operation. The sealing device can make the upper mold and the lower mold sealed. Compared with the existing technology, it has the characteristics of being easy to use and having a simple structure.

[0018] 2. In summary, by setting up a second sealing frame, a vacuum generator, a connecting plate, an upper mold, and a mold hole, the air between the upper mold and the mold hole cavity can be extracted by the vacuum generator, thereby preventing the gas from affecting the superplastic forming operation. It is convenient to use and has a simple structure.

[0019] 3. In summary, by setting handles, moving rods, stop rods, moving holes, limiting blocks, limiting grooves, fixing blocks, telescopic rods, springs, fixing cylinders, mold plates, and connecting rods, the mold holes can be hollowed out when the upper and lower molds are connected, and then the air inside the cavity can be extracted. It is convenient to use and has a simple structure.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a perspective view of one side of the present invention;

[0023] Figure 2 This is a perspective view of the other side of the present invention;

[0024] Figure 3 This is a perspective view of the mold hole 20 and the mold plate 21 of this utility model;

[0025] Figure 4 This is a perspective view of the mold plate 21 of this utility model;

[0026] Figure 5 This is a perspective view of the fixed cylinder 23 and the telescopic rod 24 of this utility model;

[0027] Figure 6 This is a perspective view of the handle 17 of this utility model;

[0028] Figure 7 This is a perspective view of the handle 17 and the fixing block 27 of this utility model;

[0029] Figure 8 This is a perspective view of the vacuum device of this utility model.

[0030] In the diagram: 10. Lower mold; 12. First sealing frame; 13. Second sealing frame; 14. Vacuum generator; 15. Connecting plate; 16. Upper mold; 17. Handle; 18. Limiting groove; 19. Through hole; 20. Mold hole; 21. Mold plate; 22. Connecting rod; 23. Fixing cylinder; 24. Telescopic rod; 25. Spring; 26. Limiting block; 27. Fixing block; 28. Moving rod; 29. ​​Support rod; 30. Moving hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0032] like Figure 1 and Figure 2As shown, a superplastic forming mold, wherein:

[0033] It includes a lower mold 10 and an upper mold 16. A mold hole 20 is provided on the front side wall of the upper mold 16. A vacuum device is provided at the rear side of the upper mold 16. The vacuum device includes a vacuum generator 14. A connecting plate 15 is provided between the vacuum generator 14 and the upper mold 16. A second sealing frame 13 is provided at the rear end of the vacuum generator 14.

[0034] The device includes a sealing device, which includes two fixed cylinders 23. Each of the two fixed cylinders 23 has a telescopic rod 24 on its front side. It also includes two fixed blocks 27. The rear ends of the two fixed blocks 27 are hollowed out, and a stop rod 29 is provided inside their cavities.

[0035] It is worth noting that the lower mold 10, the upper mold 16, and the mold hole 20 have all been disclosed in a superplastic forming mold and its usage method (202311289453.6), and will not be repeated here.

[0036] A vacuum generator is a new type of efficient, clean, economical, and compact vacuum component that uses a positive pressure air source to generate negative pressure. This makes it very easy and convenient to obtain negative pressure in places where compressed air is available, or in a pneumatic system where both positive and negative pressure are required simultaneously. Vacuum generators are widely used in industrial automation in fields such as machinery, electronics, packaging, printing, plastics, and robotics. Vacuum generator 14 is existing technology and will not be described in detail here.

[0037] In practical use, the vacuum device can discharge the air in the cavity of the connecting plate 15 through the second sealing frame 13. The connecting plate 15 is connected to the upper mold 16, thereby discharging the air between the upper mold 16 and the lower mold 10, so that the mold hole 20 is in a vacuum state. The sealing device can seal the upper mold 16 and the lower mold 10, and connect the connecting plate 15 with the lower mold 10.

[0038] In summary, by setting up a vacuum device and a sealing device, the mold hole 20 can be made into a vacuum state by the vacuum device, preventing gas in the cavity from affecting the superplastic molding operation. The sealing device can make the upper mold 16 and the lower mold 10 sealed. Compared with the prior art, it has the characteristics of being easy to use and having a simple structure.

[0039] like Figure 2 , Figure 3 , Figure 6 and Figure 8As shown, the front side wall of the connecting plate 15 is hollowed out, and the front side wall of the connecting plate 15 is fixedly connected to the rear side wall of the upper mold 16. The front side wall of the second sealing frame 13 is also hollowed out and is fixedly connected to the rear side wall of the upper mold 16.

[0040] The vacuum generator 14 has two ends that pass through the second sealing frame 13 and the connecting plate 15. A through hole 19 is provided at both ends of the front side wall of the upper mold 16. A limiting groove 18 is provided at both the upper and lower ends of the front side wall of the upper mold 16. Two limiting blocks 26 are fixedly installed on the rear side wall of the lower mold 10, with the limiting groove 18 and the limiting block 26 corresponding to each other. The vacuum generator 14 is electrically connected to the power supply and switch.

[0041] In practical use, the limiting block 26 and the limiting groove 18 can play a certain guiding and connecting role. When a seal is formed between the upper mold 16 and the lower mold 10, the vacuum generator 14 can be activated. The vacuum generator 14 can extract the air from the cavity of the connecting plate 15, and then extract the air from the mold hole 20 and the space between the upper mold 16 and the lower mold 10. The specific method of air extraction will be discussed below. The extracted air will be discharged through the connection with the second sealing frame 13. Both the second sealing frame 13 and the connecting plate 15 can limit the vacuum generator 14. The mold hole 20 has the same shape as the mold plate 21.

[0042] In summary, by setting up the second sealing frame 13, vacuum generator 14, connecting plate 15, upper mold 16, 11 and mold hole 20, the air between 11 and upper mold 16 and in the mold hole 20 cavity can be extracted by the vacuum generator 14, thereby preventing the gas from affecting the superplastic forming operation. It is convenient to use and has a simple structure.

[0043] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a mold plate 21 is provided inside the cavity of the mold hole 20. Two telescopic rods 24 are respectively fixedly installed at the left and right ends of the rear side wall of the mold plate 21. Two fixed cylinders 23 are respectively fixedly installed at the left and right ends of the rear side wall of the cavity of the connecting plate 15.

[0044] A spring 25 is fixedly installed on the rear side wall of each of the two telescopic rods 24. The other end of each spring 25 is fixedly connected to the rear side wall of the cavity of each of the two fixed cylinders 23. A connecting rod 22 is fixedly installed on the left and right side walls of the mold plate 21. The connecting rod 22 is L-shaped, and the front end of each connecting rod 22 is located in the cavity of the perforation 19.

[0045] A first sealing frame 12 is fixedly installed on the rear side wall of the lower mold 10. A moving hole 30 is opened on both the left and right side walls of the first sealing frame 12. A handle 17 is provided at both the left and right ends of the first sealing frame 12. Two fixing blocks 27 are located at the left and right ends of the cavity of the first sealing frame 12, corresponding to the positions of the handles 17.

[0046] The front sidewalls of the two fixing blocks 27 are fixedly connected to the rear sidewall of the first sealing frame 12. A movable rod 28 is fixedly installed at the end of each of the two handles 17 that are close to each other. The movable rod 28 passes through the movable hole 30 and is fixedly connected to the corresponding abutment 29.

[0047] In practical use, when the lower mold 10 and the upper mold 16 are close together, the fixing block 27 can be inserted into the cavity of the through hole 19. The abutment of the fixing block 27 will push the connecting rod 22 to move. The movement of the connecting rod 22 can drive the mold plate 21 to move, so that the mold hole 20 is in a hollow state. At this time, the inner side wall of the cavity of the first sealing frame 12 is in contact with the side wall of the upper mold 16, so that the lower mold 10 and the upper mold 16 are in a sealed state. Then the air can be extracted by the vacuum generator 14. Then the operator can pull the handle 17 to move it to the rear. The moving rod 28 drives the abutment rod 29 to move to the rear. The spring 25 has the force to push the telescopic rod 24 forward. The movement of the telescopic rod 24 can drive the mold plate 21 to return to its original position. The fixing cylinder 23 can limit the telescopic rod 24 and the spring 25. The abutment rod 29 can limit the fixing block 27. The moving hole 30 can limit the moving rod 28 and the handle 17.

[0048] In summary, by setting up handle 17, moving rod 28, stop rod 29, moving hole 30, limiting block 26, limiting groove 18, fixing block 27, telescopic rod 24, spring 25, fixing cylinder 23, mold plate 21 and connecting rod 22, the mold hole 20 can be hollowed out when the upper mold 16 is connected to the lower mold 10, and then the air in its cavity can be extracted. It is convenient to use and has a simple structure.

[0049] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A superplastic forming die, characterized by, The utility model relates to a two -piece mould for producing a plastic container, which comprises a lower mould (10) and an upper mould (16), a mould hole (20) is formed in the front side wall of the upper mould (16), a vacuum device is arranged at the rear side of the upper mould (16), the vacuum device comprises a vacuum generator (14), a connecting disc (15) is arranged between the vacuum generator (14) and the upper mould (16), a second sealing frame (13) is arranged at the rear end of the vacuum generator (14). The sealing device comprises two fixed cylinders (23), the front side of each fixed cylinder (23) is provided with an extension rod (24), and the rear end of each fixed block (27) is hollow, and a resisting rod (29) is arranged in the cavity. The front side wall of the connecting disc (15) is hollow, the front side wall of the connecting disc (15) is fixedly connected with the rear side wall of the upper mould (16), and the front side wall of the second sealing frame (13) is also hollow and fixedly connected with the rear side wall of the upper mould (16).

2. The superplastic forming die according to claim 1, characterized in that Both ends of the vacuum generator (14) penetrate the second sealing frame (13) and the connecting disc (15), the left and right ends of the front side wall of the upper mould (16) are provided with a perforation (19), and the upper and lower ends of the front side wall of the upper mould (16) are provided with a limiting groove (18).

3. The superplastic forming die according to claim 2, wherein A mould plate (21) is arranged in the cavity of the mould hole (20), the left and right ends of the rear side wall of the mould plate (21) are fixedly provided with two extension rods (24), and the left and right ends of the rear side wall of the cavity of the connecting disc (15) are fixedly provided with two fixed cylinders (23).

4. The superplastic forming die according to claim 1, wherein The rear side wall of each extension rod (24) is fixedly provided with a spring (25), the other end of each spring (25) is fixedly connected with the rear side wall of the cavity of each fixed cylinder (23), the left and right side walls of the mould plate (21) are fixedly provided with a connecting rod (22), the connecting rod (22) is L-shaped, and the front end of each connecting rod (22) is arranged in the cavity of the perforation (19).

5. The superplastic forming die according to claim 4, wherein The rear side wall of the lower mould (10) is fixedly provided with a first sealing frame (12), the left and right side walls of the first sealing frame (12) are provided with a moving hole (30), the left and right ends of the first sealing frame (12) are provided with a handle (17), and the left and right ends of the cavity of the first sealing frame (12) are provided with two fixed blocks (27) corresponding to the handle (17).

6. The superplastic forming die according to claim 5, wherein The front side wall of each fixed block (27) is fixedly connected with the rear side wall of the first sealing frame (12), and the end of each handle (17) close to each other is fixedly provided with a moving rod (28) penetrating the moving hole (30) and fixedly connected with the corresponding resisting rod (29).

7. The superplastic forming die according to claim 6, wherein ​

Images