A scoring diaphragm press molding and shaping integrated forming device

Abstract

The present application relates to a kind of indentation film sheet die pressing, shaping integrated forming device, comprising: lower die seat, female die backing plate, female die fixed plate, female die, floating stripper plate, upper die seat, male die backing plate, male die fixed plate, upper die plate, male die one and male die two, the upper end surface of female die is equipped with forming groove, the lower end surface of male die two is equipped with indentation forming convex part, in the process of female die and upper die plate closing, indentation forming convex part is used to form indentation on indentation film sheet, male die one is used to press indentation film sheet to form indentation in forming groove.The indentation film sheet die pressing, shaping integrated forming device of the present application, the die pressing forming of indentation film sheet, shaping is integrated, solves the negative influence brought by indentation film sheet secondary shaping;Variable cross-section male die, variable thickness backing plate or fixed plate, etc., reduce stress concentration design, as far as possible eliminate the influence of mold core component elastic deformation on indentation forming precision and consistency.

Description

Technical Field

[0001] This invention relates to the field of scoring diaphragm technology, and in particular to an integrated molding device for scoring diaphragm molding and shaping. Background Technology

[0002] A notched diaphragm is a thin-plate component with pre-formed notches and weak areas of a specific cross-sectional shape and regular distribution. Diaphragm materials typically include any ductile material such as aluminum and its alloys, copper and its alloys, and titanium and its alloys. The notched diaphragm functions similarly to a valve; when the design pressure is reached, the diaphragm ruptures along the notches, allowing fluid to pass through and controlling fluid flow. It plays a crucial role in systems such as lithium battery explosion-proof pressure relief and engine fuel ignition after conduction. The rupture pressure of the notched diaphragm is primarily determined by the remaining thickness at the notch in the pre-formed weak area. Depending on the rupture pressure, it typically ranges from tens to hundreds of micrometers, making its extremely small size and difficult to manufacture. Furthermore, the dimensional accuracy and consistency of the remaining notch thickness, the cross-sectional shape of the notch, the material's microstructure, and surface quality all significantly influence the accuracy of the notched diaphragm's rupture pressure and the opening rate after conduction, thus affecting critical issues such as reliable system safety and reliable engine operation.

[0003] Currently, notched diaphragms are mainly fabricated using processes such as stamping. However, these methods suffer from drawbacks such as low notching precision, insufficient dimensional consistency and performance uniformity, diaphragm warping after notching requiring secondary reshaping, which affects the notching precision of the initial forming step. This can lead to failures such as large burst pressure errors or insufficient diaphragm rupture and opening. In recent years, research has also been conducted on CNC precision machining, laser processing, and MEMS technologies, but these methods still have limitations in terms of fabrication efficiency, surface quality, dimensional stability, and material microstructure. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, such as poor consistency of residual thickness of the scoring and unstable rupture pressure caused by secondary reshaping of the scoring diaphragm.

[0005] To solve the above technical problems, the present invention provides an integrated molding device for scoring films, comprising: a lower mold base; a die pad fixedly disposed on the upper end surface of the lower mold base; a die fixing plate disposed on the upper end surface of the die pad; a die disposed on the die fixing plate; wherein the upper end of the die extends out of the die fixing plate, and the scoring film to be processed is disposed on the upper end of the die extending out of the die fixing plate; a floating stripper plate slidably connected to the die fixing plate, and when the floating stripper plate moves away from the die fixing plate, the floating stripper plate is used for unloading the scoring film to be processed in the die; an upper mold base located directly above the lower mold base; and a punch pad fixedly disposed on the upper mold base. The lower end face of the mold base is fixedly connected to: a punch fixing plate, which is connected to the lower end face of the punch pad; an upper template, which is connected to the lower end face of the punch fixing plate; a punch one, the upper end of which is set inside the punch pad; a punch two, the upper end of which is connected to the punch fixing plate, and the lower end of the punch two extends into the upper template. The punch one is located at the center line of the punch two, and the lower end of the punch one penetrates the punch two. The upper end face of the die is provided with a forming groove, and the lower end face of the punch two is provided with a scoring forming protrusion. During the mold closing process of the upper template and the die, the scoring forming protrusion is used to form a score on the scoring diaphragm, and the punch one is used to press the scoring diaphragm into the forming groove to form an indentation.

[0006] In one embodiment of the present invention, the upper template is provided with a through hole along the direction of the upper template and the die closing, and the upper end of the through hole is provided with a step.

[0007] In one embodiment of the present invention, an outer pressure ring assembly is provided between the punch fixing plate and the upper template. The outer pressure ring assembly includes an outer pressure ring, a plurality of pressure rods and a plurality of springs. The springs are disposed inside the upper template. The upper end of the pressure rod is connected to the spring and the lower end of the pressure rod is connected to the outer pressure ring. A limiting boss is provided on the outer wall of the outer pressure ring. The outer pressure ring is placed inside the through hole. The limiting boss contacts the step to limit the outer pressure ring.

[0008] In one embodiment of the present invention, the outer pressure edge ring is provided with a second through hole along the direction of the upper template and the die closing, and the punch fixing plate is provided with a third through hole along the direction of the upper template and the die closing. The second through hole and the third through hole are on the same straight line. The upper end of the second punch is disposed in the third through hole, and the lower end of the second punch is disposed in the second through hole.

[0009] In one embodiment of the present invention, a step two is provided on the inner wall of the upper end of the through hole three, and a limiting boss two is provided on the outer wall of the upper end of the punch two. The limiting boss two contacts the step two to limit the punch two.

[0010] In one embodiment of the present invention, an inner pressure edge ring assembly is provided between the punch pad and the punch two. The inner pressure edge ring assembly includes an inner pressure edge ring, a pressure rod two and a spring two. The spring two is disposed inside the punch pad. The upper end of the pressure rod two is connected to the spring two, and the lower end of the pressure rod two is connected to the inner pressure edge ring.

[0011] In one embodiment of the present invention, the lower end of the punch is provided with a groove, and the inner pressure ring is disposed in the groove. During the process of the upper template and the die closing, the lower end faces of the outer pressure ring and the inner pressure ring are pressed against the etched diaphragm.

[0012] In one embodiment of the present invention, the punch pad is provided with a mounting hole, the punch two is provided with a through hole four, the inner pressure ring is provided with a through hole five, the mounting hole, the through hole four and the through hole five are on the same straight line, the upper end of the punch one is disposed in the mounting hole, and the lower end of the punch one extends through the through hole four into the through hole five.

[0013] In one embodiment of the present invention, the lower mold base is provided with a plurality of outer guide posts, and the upper mold base is provided with a plurality of outer guide sleeves. The plurality of outer guide posts and the plurality of outer guide sleeves are arranged in a one-to-one correspondence, and the outer guide posts and the outer guide sleeves are slidably connected.

[0014] In one embodiment of the present invention, the concave mold fixing plate is provided with a plurality of inner guide posts, and the upper template is provided with a plurality of inner guide sleeves. The plurality of inner guide posts and the plurality of inner guide sleeves are arranged in a one-to-one correspondence, and the inner guide posts and the inner guide sleeves are slidably connected.

[0015] The technical solution of the present invention has the following advantages over the prior art:

[0016] The integrated molding and straightening device for scoring diaphragms of this invention combines the molding and straightening of scoring diaphragms into one process, solving the negative impact of secondary straightening of scoring diaphragms. It also proposes a molding die structure based on stiffness matching, employing designs such as variable cross-section punches, variable thickness pads or fixing plates, and stress concentration reduction to minimize the impact of elastic deformation of the core die components on the accuracy and consistency of scoring. While ensuring die stiffness, it utilizes internal and external pressure edge structures, a floating stripper plate, and a strong constraint boundary formed by the die and the downward friction of the floating stripper plate to constrain the plastic deformation behavior of the scoring area and suppress diaphragm warping. This achieves the straightening purpose simultaneously with scoring molding, addressing the shortcomings of poor consistency in residual scoring thickness and unstable rupture pressure caused by secondary straightening of scoring diaphragms, thereby improving production efficiency and reducing costs. Attached Figure Description

[0017] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0018] Figure 1 This is an overall cross-sectional view of the integrated molding device for scoring diaphragm molding and straightening according to the present invention;

[0019] Figure 2 This is a partial cross-section of the integrated molding and straightening device for scoring films of the present invention. Figure 1 ;

[0020] Figure 3 This is a partial cross-section of the integrated molding device for scoring diaphragm molding and straightening according to the present invention. Figure 2 .

[0021] Explanation of reference numerals in the accompanying drawings: 1. Lower mold base; 2. Die backing plate; 3. Die fixing plate; 4. Die; 5. Floating stripper plate; 6. Upper mold base; 7. Punch backing plate; 8. Punch fixing plate; 9. Upper template; 10. Punch 1; 11. Forming groove; 12. Scoring forming protrusion; 13. Through hole 1; 14. Step 1; 15. Outer pressure ring; 16. Pressure rod 1; 17. Spring 1; 18. Limiting boss 1; 19. Through hole 2; 20. Through hole 3; 21. Step 2; 22. Limiting boss 2; 23. Inner pressure ring; 24. Pressure rod 2; 25. Spring 2; 26. Groove 2; 27. Mounting hole; 28. Through hole 4; 29. ​​Through hole 5; 30. Outer guide post; 31. Outer guide sleeve; 32. Inner guide post; 33. Inner guide sleeve; 34. Scoring diaphragm; 100. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0023] Reference Figure 1-3As shown, the integrated molding and shaping device for scoring films of the present invention includes: a lower mold base 1; a die pad 2, which is fixedly disposed on the upper end surface of the lower mold base 1; a die fixing plate 3, which is disposed on the upper end surface of the die pad 2; a die 4, which is disposed on the die fixing plate 3; and the upper end of the die 4 extends out of the die fixing plate 3, and the upper end of the die 4 extending out of the die fixing plate 3 is provided with a scoring film 100 to be processed; a floating unloading plate 5, which is slidably connected to the die fixing plate 3, and when the floating unloading plate 5 is away from the die fixing plate 3, the floating unloading plate 5 is used for unloading the scoring film 100 to be processed in the die 4, and a plurality of springs 35 are provided between the floating unloading plate 5 and the die fixing plate 3; an upper mold base 6, which is located directly above the lower mold base 1; a punch pad 7, which is connected to the upper mold base 1; and a die fixing plate 6, which is located directly above the lower mold base 1; and a punch pad 7, which is connected to the upper mold base 1; and a die fixing plate 6, which is fixedly disposed on the upper mold base 1; and a die fixing plate 7, which is fixedly disposed on ... The lower end face of the mold base 6 is fixedly connected; the punch fixing plate 8 is connected to the lower end face of the punch pad 7; the upper template 9 is connected to the lower end face of the punch fixing plate 8; punch one 10 is set in the punch pad 7; punch two 11 is connected to the punch fixing plate 8 at its upper end, and the lower end of punch two 11 extends into the upper template 9. Punch one 10 is located at the center line of punch two 11, and the lower end of punch one 10 penetrates punch two 11. The upper end face of the die 4 is provided with a forming groove 12, and the lower end face of punch two 11 is provided with a scoring forming protrusion 13. During the mold closing process of the upper template 9 and the die 4, the scoring forming protrusion 13 is used to form a score on the scoring diaphragm 100, and punch one 10 is used to press the scoring diaphragm 100 into the forming groove 12 to form an indentation.

[0024] In the above structure, the upper template 9 is provided with a through hole 14 along the mold closing direction of the upper template 9 and the concave mold 4, and the upper end of the through hole 14 is provided with a step 15.

[0025] In the above structure, an outer pressure edge ring assembly is provided between the punch fixing plate 8 and the upper template 9. The outer pressure edge ring assembly includes an outer pressure edge ring 16, several pressure rods 17 and several springs 18. The springs 18 are disposed inside the upper template 9. The upper end of the pressure rods 17 is connected to the springs 18, and the lower end of the pressure rods 17 is connected to the outer pressure edge ring 16. A limiting boss 19 is provided on the outer wall of the outer pressure edge ring 16. The outer pressure edge ring 16 is placed inside the through hole 14. The limiting boss 19 contacts the step 15 to limit the outer pressure edge ring 16. The outer pressure ring 16 is provided with a second through hole 20 along the mold closing direction of the upper template 9 and the die 4, and the punch fixing plate 8 is provided with a third through hole 21 along the mold closing direction of the upper template 9 and the die 4. The second through hole 20 and the third through hole 21 are on the same straight line. The upper end of the second punch 11 is located in the third through hole 21, and the lower end of the second punch 11 is located in the second through hole 20.

[0026] In the above structure, the upper end inner wall of the through hole 21 is provided with a step 22, and the upper end outer wall of the punch 11 is provided with a limiting boss 23. The limiting boss 23 contacts the step 22 to limit the punch 11.

[0027] In the above structure, an inner pressure edge ring assembly is provided between the punch pad 7 and the punch 2 11. The inner pressure edge ring assembly includes an inner pressure edge ring 24, a pressure rod 25 and a spring 26. The spring 26 is disposed inside the punch pad 7. The upper end of the pressure rod 25 is connected to the spring 26, and the lower end of the pressure rod 25 is connected to the inner pressure edge ring 24.

[0028] In the above structure, the lower end of the punch 11 is provided with a groove 27, and the inner pressure ring 24 is disposed in the groove 27. During the mold closing process of the upper template 9 and the die 4, the lower end faces of the outer pressure ring 16 and the inner pressure ring 24 are pressed against the scoring diaphragm 100.

[0029] The inner pressure ring 24 and the outer pressure ring 16 are located at the inner and outer ring positions of the second punch 11, respectively. When the second punch 11 presses against the scoring diaphragm 100, the inner pressure ring 24 and the outer pressure ring 16 press against the inner and outer rings of the scoring diaphragm 100, respectively. This multi-constraint shaping method utilizes the frictional forces of the inner and outer pressure rings and the floating stripper plate. While ensuring mold rigidity, it employs the inner and outer pressure ring structure, the floating stripper plate, the strong constraint boundary formed by the die, and the downward frictional force of the floating stripper plate to constrain the plastic deformation behavior of the scoring area and suppress diaphragm warping. This achieves the shaping purpose simultaneously with scoring molding, addressing the shortcomings of poor consistency in the remaining scoring thickness and unstable bursting pressure caused by secondary shaping of the scoring diaphragm.

[0030] In the above structure, the punch pad 7 is provided with a mounting hole 28, the punch 21 is provided with a through hole 4 29, the inner pressure ring 24 is provided with a through hole 5 30, the mounting hole 28, the through hole 4 29 and the through hole 5 30 are on the same straight line, the upper end of the punch 10 is provided in the mounting hole 28, and the lower end of the punch 10 extends through the through hole 4 29 into the through hole 5 30.

[0031] The mold's guiding structure comprises two parts: a plurality of outer guide pillars 31 are provided on the lower mold base 1, and a plurality of outer guide sleeves 32 are provided on the upper mold base 6. The plurality of outer guide pillars 31 and the plurality of outer guide sleeves 32 are arranged in a one-to-one correspondence and are slidably connected. A plurality of inner guide pillars 33 are provided on the cavity mold fixing plate 3, and a plurality of inner guide sleeves 34 are provided on the upper mold plate 9. The plurality of inner guide pillars 33 and the plurality of inner guide sleeves 34 are arranged in a one-to-one correspondence and are slidably connected.

[0032] The integrated die device for scoring diaphragm compression molding and straightening mainly consists of two punches, inner and outer pressure edges and their pressure rods and springs, a die, a floating stripper plate and its supporting springs, templates and pads for fixed punches and dies, high-rigidity upper and lower die bases, inner and outer guide pillars and guide sleeves, etc.

[0033] The microstructure of the scoring diaphragm is mainly formed by the interaction between the punch 2 and the die. The micro-protrusions at the bottom of the punch 2 are pressed onto the sheet metal. The sheet metal undergoes plastic deformation, producing a score consistent with the micro-protrusions at the bottom of the punch 2. Although the score geometry is small, the amount of plastic deformation is large, resulting in a large forming force, reaching several tons. Under such a large force, the punch is prone to elastic deformation, making it difficult to meet the required scoring accuracy. To balance the forming of small-sized scores with the reduction of forming errors caused by the elastic deformation of the punch, the punch adopts a multi-step structure design. That is, from the micro-protrusion upwards, the cross-section of the punch continuously increases. Furthermore, after the central region of the punch is recessed to a certain depth to meet the internal pressure edge requirements, the punch becomes a single structure. This structure significantly improves the overall rigidity of the punch compared to ring-shaped structures, which helps to ensure the scoring accuracy.

[0034] The scoring process of diaphragms involves localized plastic deformation with extremely small geometric dimensions and a large amount of plastic deformation, making it highly susceptible to warping and other deformations. This results in poor flatness of the scored diaphragms, failing to meet the requirements for diaphragm installation and application. To address this, this invention incorporates pressure rings, powered by high-stiffness springs, on both the inner and outer sides of the micro-protrusions in the scoring process. Before the scoring molding of the diaphragm, these pressure rings are already pressed onto the diaphragm blank. As the micro-protrusions of the punch continue to press downwards, the pressure force increases accordingly, effectively suppressing warping and deformation of the diaphragm.

[0035] On the other hand, this invention features a floating unloading plate supported by springs. When the upper mold contacts the plate, the springs supporting the floating unloading plate are compressed as the upper mold continues to move downwards, allowing it to move downwards as well. The outer diameter of the diaphragm blank is fitted with a small clearance to the inner diameter of the floating unloading plate. The diaphragm blank undergoes slight plastic deformation, allowing it to contact the inner wall of the floating unloading plate's inner hole. As the floating unloading plate moves downwards, the contact friction applies a downward force to the originally upward-curving diaphragm, thereby suppressing warping.

[0036] During the diaphragm marking process, the warping of the diaphragm is suppressed by the internal and external pressure forces and the downward friction of the floating unloading plate, which plays a corrective role and realizes the integrated forming and preparation of the marking diaphragm by compression molding and correction.

[0037] To ensure the shaping effect during the stamping process of the etched diaphragm, a large internal and external pressure edge force is required. If the internal and external pressure edge forces are directly applied to the upper mold base through pressure rods and springs, and the stamping force is also directly applied to the upper mold base, it is very easy for the upper mold base, which already has many mounting and fixing holes, to undergo slight elastic deformation. This has a significant impact on the stamping accuracy, which is only tens to hundreds of micrometers thick. To ensure the overall rigidity of the integrated stamping-shaping mold device, a rigidity matching design was implemented. In terms of plate thickness, from bottom to top, the thickness of the upper template, punch fixing plate, punch pad, and upper mold base increases continuously according to the principle of upward force transmission, so as to ensure the overall rigidity of different templates. In terms of structural design, the external pressure edge, stamping, and internal pressure edge are fixed or act on different plates respectively, avoiding concentrated force on the plates. In addition, the number of holes on the plates is reduced, especially the upper mold base, which has very few holes, only guide sleeves and a few fixing bolt holes. This upper mold base with few holes and a large thickness effectively ensures the overall rigidity of the mold.

[0038] Specific implementation methods:

[0039] The blank material for the scoring diaphragm is aluminum and its alloys, copper and its alloys, or titanium and its alloys, etc., and the outer contour diameter of the blank is... The plate thickness is 0.05-5mm. The cross-sectional dimensions of the notch are: included angle of 15-150° on both sides, bottom fillet radius of R0.1-0.5mm, and remaining thickness of 0.05-0.2mm. The radius of the semi-circular recess for positioning is R0.5-3mm, and the depth is 0.5-2mm.

[0040] The outer pressure ring is provided by 3-7 springs, with a pressure force of 400-1300 kgf; the inner pressure ring is provided by 3-5 springs, with a pressure force of 200-800 kgf; the floating unloading plate is supported by 3-5 springs, with a support force of 150-600 kgf.

[0041] The integrated molding and straightening process for the scoring diaphragm is performed on a hydraulically driven servo press. The press should have a maximum output force greater than 30 tons and a displacement control accuracy of 1-2 μm. First, thoroughly clean the press's worktable and the upper and lower surfaces of the mold assembly, ensuring there are no solid particles, rust, or other debris. Wipe the contact surfaces with a lint-free cloth dampened with alcohol of greater than 75% to prevent affecting the tight contact between the mold assembly and the worktable. Install the integrated molding and straightening mold assembly on the hydraulically driven servo press, securing it with at least four pressure plates to ensure reliable installation and fixation.

[0042] The forming mold device consists of an upper template, a punch fixing plate, a punch pad, and an upper mold base, from bottom to top. The plate thickness ratio can be designed as 1:1.2:1.5:2.

[0043] First, start the servo press and press down at a speed of 1-10 mm / min. When the lower surface of the micro-protrusion of the punch 2 is in close contact with the upper surface of the die, stop the servo press and record the position of the servo press slider at this time, which will be used for calculating the remaining thickness of the groove.

[0044] Then, after confirming that the prepared diaphragm blank is free of defects and clean, it is placed into the central hole of the floating unloading plate.

[0045] Secondly, start the servo press and move the slide downwards. Before the micro-protrusion of punch 2 contacts the blank, the downward movement speed can be faster, such as 20-100 mm / min. After the micro-protrusion of punch 2 contacts the blank, the movement speed of the press slide should be slowed down, and 1-10 mm / min is recommended.

[0046] Subsequently, when the difference between the position of the diaphragm blank after placement and the press position during no-load operation equals the remaining thickness of the notch, the servo press is stopped. The servo press is then controlled to return the equipment slide to its original position.

[0047] Finally, the scored films are removed and subjected to a preliminary visual inspection. They are then placed into different storage baskets according to whether they pass or fail. The integrated molding and straightening process for the scored films is now complete.

[0048] This invention completes the manufacturing of the scoring diaphragm in one mold and one process, solving the negative impact of secondary reshaping of the scoring diaphragm, and improving production efficiency and reducing costs. It also invented a compression molding mold structure based on stiffness matching, which adopts designs such as variable cross-section punch, variable thickness pad or fixing plate, and stress concentration reduction to minimize the impact of elastic deformation of the core components of the mold on the scoring forming accuracy and consistency. While taking into account the rigidity of the mold, it adopts internal and external pressure edge structures, floating stripper plate, and strong constraint boundary formed by the die and the downward friction of the floating stripper plate to constrain the plastic deformation behavior of the scoring area and suppress diaphragm warping, so as to achieve the reshaping purpose while scoring compression molding.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A molding device integrating scoring diaphragm molding and shaping, characterized in that, include: Lower mold base; A die backing plate is fixedly mounted on the upper end face of the lower die base; A die fixing plate is set on the upper end face of the die pad plate; A die is disposed on a die fixing plate; and the upper end of the die extends out of the die fixing plate, and the upper end of the die extending out of the die fixing plate is provided with a scoring film to be processed. A floating unloading plate is slidably connected to a die fixing plate, and when the floating unloading plate is away from the die fixing plate, the floating unloading plate is used to unload the scoring film to be processed in the die. The upper mold base is located directly above the lower mold base; The punch pad is fixedly connected to the lower end face of the upper die holder; A punch fixing plate, which is connected to the lower end face of the punch pad plate; The upper template is connected to the lower end face of the punch fixing plate; Punch 1, the upper end of which is set inside the punch pad; The second punch has its upper end connected to the punch fixing plate, and its lower end extends into the upper template. The first punch is located at the center line of the second punch, and its lower end penetrates the second punch. The upper end face of the die is provided with a forming groove, and the lower end face of the second punch is provided with a scoring forming protrusion. The upper template is provided with a through hole along the direction of the upper template and the die closing, and the upper end of the through hole is provided with a step. An outer pressure ring assembly is provided between the punch fixing plate and the upper template. The outer pressure ring assembly includes an outer pressure ring, several pressure rods and several springs. The springs are disposed inside the upper template. The upper end of the pressure rod is connected to the spring, and the lower end of the pressure rod is connected to the outer pressure ring. A limiting boss is provided on the outer wall of the outer pressure ring. The outer pressure ring is placed in the through hole. The limiting boss contacts the step to limit the outer pressure ring. An inner pressure ring assembly is provided between the punch pad and the second punch. The inner pressure ring assembly includes an inner pressure ring, a second pressure rod, and a second spring. The second spring is disposed inside the punch pad. The upper end of the second pressure rod is connected to the second spring, and the lower end of the second pressure rod is connected to the inner pressure ring.

2. The integrated molding device for scoring diaphragm molding and shaping according to claim 1, characterized in that: The outer pressure edge ring is provided with a second through hole along the direction of the upper template and the die closing, and the punch fixing plate is provided with a third through hole along the direction of the upper template and the die closing. The second through hole and the third through hole are on the same straight line. The upper end of the second punch is located in the third through hole, and the lower end of the second punch is located in the second through hole.

3. The integrated molding device for scoring diaphragm molding and shaping according to claim 2, characterized in that: The upper end of the through hole three is provided with a step two, and the upper end of the punch two is provided with a limiting boss two. The limiting boss two contacts the step two to limit the punch two.

4. The integrated molding device for scoring diaphragm molding and shaping according to claim 1, characterized in that: The lower end of the punch is provided with a groove, and the inner pressure ring is disposed in the groove. During the mold closing process of the upper template and the die, the lower end faces of the outer pressure ring and the inner pressure ring are pressed against the etched diaphragm.

5. The integrated molding device for scoring diaphragm molding and shaping according to claim 1, characterized in that: The punch pad is provided with a mounting hole, the punch two is provided with a through hole four, and the inner pressure ring is provided with a through hole five. The mounting hole, through hole four, and through hole five are on the same straight line. The upper end of the punch one is set in the mounting hole, and the lower end of the punch one extends through through hole four into through hole five.

6. The integrated molding and shaping device for scoring films according to claim 1, characterized in that: The lower mold base is provided with a number of outer guide pillars, and the upper mold base is provided with a number of outer guide sleeves. The number of outer guide pillars and the number of outer guide sleeves are arranged in a one-to-one correspondence, and the outer guide pillars and the outer guide sleeves are slidably connected.

7. The integrated molding device for scoring diaphragm molding and shaping according to claim 1, characterized in that: The die fixing plate is provided with a number of inner guide posts, and the upper template is provided with a number of inner guide sleeves. The number of inner guide posts and the number of inner guide sleeves are arranged in a one-to-one correspondence, and the inner guide posts and the inner guide sleeves are slidably connected.

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