Pressure testing mechanism for mold design

Abstract

The utility model provides a pressure testing mechanism for die design, which relates to the technical field of die testing equipment and comprises a frame. The sliding groove frame is fixedly connected to the side end of the frame; the sliding block is connected into the sliding groove frame in a sliding mode, and the side end of the sliding block is fixedly connected with a lead screw nut block. The first connecting seat is fixedly connected to the upper end of the lead screw nut block; the first rotating rod is connected to the side end of the frame, and the first rotating rod is connected with the first connecting seat; according to the scheme, the sliding groove frame with the sliding block and the lead screw nut block is arranged, and a linkage structure of the first rotating rod and the two-way lead screw is combined, so that the clamping mechanism can be flexibly adjusted according to molds of different sizes and shapes in the testing process; and meanwhile, through the design of a second rotating rod and a chain wheel and chain transmission system, overturning control over the angle of the clamped mold is achieved, and therefore pressure testing on the upper face and the side face of the mold is supported.

Description

Technical Field

[0001] This utility model relates to the field of mold testing equipment technology, and in particular to a pressure testing mechanism for mold design. Background Technology

[0002] A mold design pressure testing machine is a device specifically designed to evaluate the structural strength and compressive strength of molds under high-pressure environments. With the increasing demands for product quality and production efficiency in the manufacturing industry, this equipment is being used more and more widely in industry. Its main function is to ensure that the performance of molds under different pressure conditions can be accurately evaluated through an effective physical testing process, thereby improving product reliability and safety.

[0003] However, most mold pressure testing devices currently on the market still have room for improvement in terms of testing efficiency. Traditional testing methods often rely on simple mechanical clamping and unidirectional pressure application, which has limitations in achieving sufficient contact and uniform force distribution between the mold and the testing device. Since molds may face multidirectional stress in actual use, improving the flexibility and adaptability of the testing device has become one of the key challenges in improving such equipment.

[0004] To address the aforementioned issues, a pressure testing mechanism for mold design is now designed. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a pressure testing mechanism for mold design, as described in this application embodiment, to solve the above-mentioned technical problems.

[0006] This utility model provides a pressure testing mechanism for mold design, comprising:

[0007] frame;

[0008] A slide rail frame, which is fixedly connected to the side end of the frame;

[0009] A slider is slidably connected to a slide rail frame, and a lead screw nut block is fixedly connected to the side end of the slider;

[0010] The first connecting seat is fixedly connected to the upper end of the lead screw nut block;

[0011] The first rotating rod is connected to the side end of the frame and is connected to the first connecting seat. The second connecting seat is fixedly connected to the circumferential surface of the first rotating rod.

[0012] A clamping mechanism includes at least one set of L-plates, a clamping plate, a limiting groove, a limiting block, a mold engaging component, and a limiting assembly. The L-plate is fixedly connected to the upper end of a second connecting seat. The clamping plate is connected to the upper end of the L-plate. The limiting groove is formed at the upper end of the L-plate. The limiting block is fixedly connected to the lower end of the clamping plate and matches the limiting groove. The mold is connected to the upper end of the clamping plate. The engaging component is disposed between the L-plate and the clamping plate to clamp the mold. The limiting assembly is disposed on the clamping plate to position the mold.

[0013] Preferably, the engaging component includes a telescopic rod and a spring. The telescopic rod is fixedly connected to the side end of the L-plate, the output end of the telescopic rod is connected to the clamping plate, and the spring is sleeved and connected to the circumferential surface of the telescopic rod.

[0014] Preferably, the limiting component includes a positioning hole, a mounting groove, a positioning pin, and an anti-slip pad. The positioning hole is located at the lower end of the mold, the mounting groove is located at the upper end of the clamping plate, the positioning pin is connected to the mounting groove, and the anti-slip pad is sleeved and connected to the circumferential surface of the positioning pin. The positioning pin matches the positioning hole, and the anti-slip pad matches the mold.

[0015] Preferably, a bidirectional lead screw is rotatably connected to the side end of the frame, the bidirectional lead screw is connected to a lead screw nut block, a first handle is fixedly connected to the side end of the bidirectional lead screw, a first ratchet is fixedly connected to the circumferential surface of the bidirectional lead screw, a first ratchet tooth is rotatably connected to the side end of the frame via a rotating shaft, the first ratchet tooth and the first ratchet tooth are intermittently engaged, a first release block is fixedly connected to the side end of the first ratchet tooth, a second rotating rod is rotatably connected to the side end of the frame, a second handle is fixedly connected to the side end of the second rotating rod, a second ratchet tooth is fixedly connected to the circumferential surface of the second rotating rod, the second ratchet tooth and the second ratchet tooth are intermittently engaged, a second release block is fixedly connected to the side end of the second ratchet tooth, a second sprocket is fixedly connected to the circumferential surface of the first rotating rod, a first sprocket is fixedly connected to the circumferential surface of the second rotating rod, and a chain is rotatably connected to the circumferential surfaces of the first sprocket and the second sprocket.

[0016] Preferably, a placement platform is fixedly connected to the side end of the frame, and a protective pad is fixedly connected to the upper end of the placement platform, and the placement platform matches the mold.

[0017] Preferably, a mounting bracket is provided on the side of the frame, and a pressure testing device is fixedly connected to the upper end of the mounting bracket, the pressure testing device being matched with the mold.

[0018] Compared with related technologies, the pressure testing mechanism for mold design provided by this utility model has the following advantages:

[0019] 1. This utility model, by setting a sliding frame with a slider and a lead screw nut block, combined with the linkage structure of the first rotating rod and the bidirectional lead screw, allows the clamping mechanism to be flexibly adjusted according to molds of different sizes and shapes during testing. Simultaneously, the design of the second rotating rod and the sprocket and chain drive system enables the rotation control of the clamping mold angle, thereby supporting pressure testing on both the top and sides of the mold. This structure not only improves the equipment's adaptability to different types of molds but also enhances the ease of operation during testing.

[0020] 2. This utility model uses a limiting structure in the clamping mechanism that combines a limiting groove and a limiting block, along with a limiting component consisting of a positioning pin, a positioning hole, and an anti-slip pad. This enables accurate positioning and stable clamping of the mold, effectively preventing data deviations caused by mold offset or loosening during testing. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this application;

[0022] Figure 2 An exploded view diagram provided for an embodiment of this application;

[0023] Figure 3 Provided for the embodiments of this application Figure 2 Exploded 3D view of the mid-frame structure;

[0024] Figure 4 Provided for the embodiments of this application Figure 3 Exploded 3D view of the mid-frame structure;

[0025] Figure 5 Provided for the embodiments of this application Figure 3 Exploded three-dimensional view of the structure at the bidirectional lead screw;

[0026] Figure 6 Provided for the embodiments of this application Figure 5 Enlarged 3D structural view of the middle clamping plate;

[0027] Figure 7 Provided for the embodiments of this application Figure 5 A three-dimensional structural cross-sectional view of the middle mold.

[0028] In the diagram: 1. Frame; 101. Double-acting lead screw; 102. Lead screw nut block; 103. Slider; 104. Slide rail frame; 105. First connecting seat; 106. First rotating rod; 107. First handle; 108. First ratchet; 109. First ratchet tooth; 110. First release block; 2. L-plate; 201. Second connecting seat; 202. Limiting groove; 203. Limiting block; 204. Clamping plate; 205. Mounting groove 206. Positioning pin; 207. Anti-slip pad; 208. Telescopic rod; 209. Spring; 3. Second rotating rod; 301. First sprocket; 302. Second sprocket; 303. Chain; 304. Second ratchet; 305. Second ratchet tooth; 306. Second release block; 307. Second handle; 4. Mold; 401. Positioning hole; 5. Placement platform; 501. Protective pad; 6. Mounting bracket; 601. Pressure testing device. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figures 1 to 7 A pressure testing mechanism for mold design, comprising:

[0031] Framework 1;

[0032] The slide rail 104 is fixedly connected to the side end of the frame 1;

[0033] The slider 103 is slidably connected to the slide rail frame 104, and the side end of the slider 103 is fixedly connected to the screw nut block 102.

[0034] The first connecting seat 105 is fixedly connected to the upper end of the lead screw nut block 102;

[0035] The first rotating rod 106 is connected to the side end of the frame 1. The first rotating rod 106 is connected to the first connecting seat 105. The second connecting seat 201 is fixedly connected to the circumferential surface of the first rotating rod 106.

[0036] The clamping mechanism includes at least one set of L-plate 2, clamping plate 204, limiting groove 202, limiting block 203, mold 4 engaging component and limiting assembly. L-plate 2 is fixedly connected to the upper end of the second connecting seat 201. Clamping plate 204 is connected to the upper end of L-plate 2. Limiting groove 202 is opened at the upper end of L-plate 2. Limiting block 203 is fixedly connected to the lower end of clamping plate 204. Limiting block 203 matches limiting groove 202. Mold 4 is connected to the upper end of clamping plate 204. Engaging component is set between L-plate 2 and clamping plate 204 to clamp mold 4. Limiting assembly is set on clamping plate 204 to position mold 4.

[0037] In the specific implementation process, when conducting pressure testing of the mold design, the mold 4 is first placed on the upper end of the clamping plate 204, and the mold 4 is initially fixed by the engaging component set between the L plate 2 and the clamping plate 204. In this way, the limiting block 203 matches the limiting groove 202 opened on the L plate 2, ensuring that the clamping plate 204 will not shift or slide when subjected to external pressure.

[0038] When the position of the clamping mechanism needs to be adjusted to accommodate molds of different sizes or types, the first rotating rod 106 can be rotated. Since the first rotating rod 106 is connected to the first connecting seat 105, and the first connecting seat 105 is fixed on the lead screw nut block 102, rotating the first rotating rod 106 will cause the slider 103 to move along the slide frame 104, thereby driving the entire clamping mechanism to move laterally. In this way, the position of the mold relative to the pressure testing device can be flexibly adjusted.

[0039] When precise control of the clamping force is required to avoid damaging the mold, the telescopic rod 208 and spring 209 can be operated. Adjusting the length of the telescopic rod 208 changes the pressure of the clamping plate 204 on the mold 4, while the elastic properties of the spring 209 provide appropriate cushioning to prevent damage to the mold due to over-clamping. Thus, after the positioning hole 401 accurately aligns with the positioning pin 206, the anti-slip pad 207 enhances friction, ensuring the mold remains stable during testing.

[0040] Once all preparations are complete, the pressure testing device 601 is activated, and the corresponding test parameters are programmed to apply a predetermined pressure to the mold, thereby verifying whether the mold's design strength meets the requirements. Throughout the test, the placement platform 5 on the side of the frame 1 and its protective pad 501 provide additional safety for the mold, preventing accidental damage. The specific connection between the mounting bracket 6 and the pressure testing device 601, and the methods for achieving their intended effect, are existing technology for those skilled in the art and will not be described in detail here.

[0041] refer to Figures 1 to 7 As shown, the engaging component includes a telescopic rod 208 and a spring 209. The telescopic rod 208 is fixedly connected to the side end of the L plate 2, and the output end of the telescopic rod 208 is connected to the clamping plate 204. The spring 209 is sleeved and connected to the circumferential surface of the telescopic rod 208.

[0042] It should be noted that when it is necessary to clamp and fix the mold 4, the operator places the mold on the upper end of the clamping plate 204 and applies clamping force through the engaging components. At this time, the telescopic rod 208 is fixedly connected to the side end of the L plate 2 at one end and connected to the clamping plate 204 at the other end, which can provide a pushing or adjusting action in the horizontal direction, so that the clamping plate 204 is close to the mold surface.

[0043] In this way, the telescopic rod 208 can be extended and adjusted according to different mold sizes, ensuring that the clamping plate 204 can fit tightly against the mold surface and improve clamping stability. At the same time, the spring 209 is sleeved on the circumferential surface of the telescopic rod 208, providing a certain elastic buffer force for the clamping process and preventing damage to the mold surface due to rigid contact.

[0044] When the mold is subjected to pressure by the pressure testing device, the clamping plate 204 will be displaced under the action of external force. At this time, the spring 209 absorbs part of the impact energy through its own compression deformation, thereby avoiding excessive clamping force that could damage the mold.

[0045] In this way, when the test is completed, the external pressure is released, the spring 209 returns to its original state, and the clamping plate 204 is moved back to the initial position, which facilitates quick disassembly of the mold and replacement of the next mold to be tested.

[0046] In this way, when the telescopic rod 208 and the spring 209 work together, not only is the mold 4 effectively clamped and protected, but the ease of operation and adaptability of the entire pressure testing mechanism are also improved, making it suitable for testing the needs of various types of molds.

[0047] refer to Figures 1 to 7 As shown, the limiting component includes a positioning hole 401, a mounting groove 205, a positioning pin 206, and an anti-slip pad 207. The positioning hole 401 is located at the lower end of the mold 4, the mounting groove 205 is located at the upper end of the clamping plate 204, the positioning pin 206 is connected to the mounting groove 205, and the anti-slip pad 207 is sleeved and connected to the circumferential surface of the positioning pin 206. The positioning pin 206 matches the positioning hole 401, and the anti-slip pad 207 matches the mold 4.

[0048] It should be noted that when positioning the mold 4 is required, first align the positioning hole 401 at the lower end of the mold with the positioning pin 206 in the mounting groove 205 at the upper end of the clamping plate 204, and then place the mold downwards on the clamping plate 204.

[0049] In this way, the positioning pin 206 is inserted into the positioning hole 401 at the bottom of the mold, achieving precise horizontal positioning of the mold and preventing the mold from shifting or misaligning during testing. At the same time, the anti-slip pad 207 is fitted onto the circumferential surface of the positioning pin 206, relying on its own elasticity to contact the mold, increasing the friction between the mold and the positioning pin, and further improving the stability of the mold fixation.

[0050] When the pressure testing mechanism starts working and applies pressure to the mold, the anti-slip pad 207 can also play a buffering role to avoid damage caused by local stress concentration in the mold due to rigid contact.

[0051] In this way, once the test is completed, the operator can easily lift the mold. Since the positioning pin 206 and the positioning hole 401 are plug-in mating structures, the disassembly process is quick and convenient, which helps to improve the testing efficiency.

[0052] In this way, when the positioning hole 401, mounting groove 205, positioning pin 206 and anti-slip pad 207 in the limiting component work together, not only is the precise positioning of the mold 4 on the clamping plate 204 achieved, but the stability and safety of the mold during the testing process are also effectively enhanced, and the applicability and reliability of the entire pressure testing mechanism are improved.

[0053] refer to Figures 1 to 7 As shown, a bidirectional lead screw 101 is rotatably connected to the side end of frame 1. The bidirectional lead screw 101 is connected to a lead screw nut block 102. A first handle 107 is fixedly connected to the side end of the bidirectional lead screw 101. A first ratchet 108 is fixedly connected to the circumferential surface of the bidirectional lead screw 101. A first ratchet 109 is rotatably connected to the side end of frame 1 via a rotating shaft. The first ratchet 108 and the first ratchet 109 intermittently mesh. A first release block 110 is fixedly connected to the side end of the first ratchet 109. A second rotating rod 3 is rotatably connected to the side end of frame 1. The side end of the second rotating rod 3 is fixedly connected to... A second handle 307 is fixedly connected to the second rotating rod 3. A second ratchet 304 is fixedly connected to the circumferential surface of the second rotating rod 3. A second ratchet 305 is rotatably connected to the side end of the frame 1 via a rotating shaft. The second ratchet 304 and the second ratchet 305 are intermittently engaged. A second release block 306 is fixedly connected to the side end of the second ratchet 305. A second sprocket 302 is fixedly connected to the circumferential surface of the first rotating rod 106. A first sprocket 301 is fixedly connected to the circumferential surface of the second rotating rod 3. A chain 303 is rotatably connected to the circumferential surfaces of the first sprocket 301 and the second sprocket 302.

[0054] It should be noted that when the bidirectional lead screw 101 rotates, it drives the slider 103 to move within the slide frame 104 via the lead screw nut block 102 connected to it. Since the slider 103 is fixedly connected to the first connecting seat 105, and the first connecting seat 105 is connected to the first rotating rod 106, the overall position of the clamping mechanism can be precisely adjusted by adjusting the bidirectional lead screw 101, ensuring that the mold 4 is accurately clamped by the clamping plate 204 and related engaging components. This adjustment mechanism ensures that the mold 4 is correctly positioned before pressure testing and remains stable throughout the entire testing process.

[0055] On the other hand, when the second rotating rod 3 rotates, it is linked by the first sprocket 301, the chain 303, and the second sprocket 302 on the first rotating rod 106 on its circumferential surface. This mechanical linkage design allows the rotation of the second rotating rod 3 to drive the first rotating rod 106 to rotate synchronously. A second connecting seat 201 is fixedly connected to the first rotating rod 106, which is in turn fixedly connected to the L-plate 2. This means that by rotating the second rotating rod 3, the entire clamping mechanism, including the clamping plate 204 and the mold 4 on it, can be flipped together. In this way, the position of the mold 4 can be easily changed, thereby applying pressure tests to different sides of the mold.

[0056] More specifically:

[0057] When it is necessary to adjust the position of mold 4 for clamping or positioning, the operator can finely adjust the position of the clamping mechanism by rotating the bidirectional lead screw 101.

[0058] When it is necessary to perform pressure tests on different sides of the mold 4, the operator can use the rotation of the second rotating rod 3 to flip the entire clamping mechanism, thereby adjusting the different sides of the mold 4 to a suitable position for pressure testing.

[0059] refer to Figures 1 to 7 As shown, a placement platform 5 is fixedly connected to the side end of the frame 1, and a protective pad 501 is fixedly connected to the upper end of the placement platform 5. The placement platform 5 matches the mold 4.

[0060] It should be noted that when mold 4 has completed clamping or pressure testing and needs to be temporarily placed or awaiting replacement, it can be removed from clamping plate 204 and placed on placement platform 5 on the side of frame 1. This allows operators to replace or adjust the mold without affecting the main process of the testing mechanism, improving work efficiency.

[0061] Since the placement platform 5 matches the mold 4, its structural design can stably support the weight of the mold and prevent the mold from sliding or tipping over during placement. At the same time, a protective pad 501 is fixedly connected to the upper end of the placement platform 5. This protective pad is made of a flexible material, such as rubber or soft plastic, which can form a buffer protective layer between the mold and the placement platform.

[0062] When the mold is placed on the protective pad 501, the protective pad can effectively prevent the mold surface from being scratched, bumped or damaged by direct contact with the metal table, thereby protecting the appearance integrity and performance of the mold.

[0063] In this way, when operators need to change or temporarily store mold 4, the placement table 5 and its protective pad 501 provide a safe and stable support platform, improving the convenience of equipment use.

[0064] refer to Figures 1 to 7As shown, a mounting bracket 6 is provided on the side of the frame 1, and a pressure testing device 601 is fixedly connected to the upper end of the mounting bracket 6. The pressure testing device 601 is matched with the mold 4.

[0065] It should be noted that when a pressure test is required on the mold 4, the mounting bracket 6 installed on the side of the frame 1 is used to support and fix the pressure testing device 601. The device is set directly above the mold and corresponds to its position to ensure that the direction of the force applied during the test is vertical and the point of application is accurate.

[0066] In this way, the pressure testing device 601 sets the required test pressure value and loading time through the control system. After starting, it can apply a pressure load simulating the working state to the mold 4, thereby detecting the structural strength, deformation, and overall stability of the mold under high pressure. Because it is matched with the mold 4, it can be precisely aligned according to the mold size and test requirements, avoiding test errors or equipment damage caused by off-center loading or misalignment.

[0067] After the test is completed, the pressure testing device 601 can automatically return to its initial position or be manually adjusted to facilitate the replacement of the next mold to be tested and improve testing efficiency.

[0068] In this way, when the pressure testing device 601 is used in conjunction with the clamping mechanism, the limiting component and the flipping adjustment mechanism, the entire pressure testing process becomes more automated and precise, which not only improves the reliability of the test data, but also provides strong technical support for mold design optimization.

[0069] The working principle of the pressure testing mechanism for mold design provided by this utility model is as follows:

[0070] The mold design and pressure testing mechanism in this solution can flexibly perform front and side inspections. The following are two usage methods:

[0071] Frontal inspection:

[0072] First, clean and inspect the mold 4 to be tested, ensuring that the bottom positioning hole 401 is not blocked or deformed. Place the mold 4 on the clamping plate 204, so that the positioning pin 206 is accurately inserted into the positioning hole 401 at the bottom of the mold, and enhance stability with the anti-slip pad 501. Adjust the telescopic rod 208 and spring 209 to achieve a stable clamping of the mold. If it is necessary to adjust the position, rotate the first handle 107 to drive the bidirectional lead screw 101 to adjust the position of the mold in the X-axis direction, ensuring that the center of the mold is aligned with the pressure testing device 601. Use the ratchet 108 and ratchet 109 to lock the current position, start the pressure testing device 601, apply pressure to the front of the mold according to the preset parameters, monitor the pressure changes and mold deformation during the test, and record the relevant data. After the test is completed, release the pressure and reset the pressure testing device, release the clamping state, and take out the mold. If necessary, it can be temporarily placed on the placement platform 5 covered by the protective pad 501.

[0073] Side inspection:

[0074] First, place the mold 4 on the clamping plate 204, ensuring that the positioning pin 206 is inserted into the positioning hole 401 at the bottom of the mold. Use the anti-slip pad 207 to increase friction and prevent the mold from moving. Rotate the second handle 307 to drive the first rotating rod 106 through the sprocket 301 and chain 303, so that the entire clamping mechanism and the mold are flipped to the required angle. Use the second ratchet 304 and the second ratchet 305 to lock the flipping angle, ensuring that the mold position remains stable during the test. Start the pressure testing device 601 according to the predetermined settings, apply pressure to the side of the mold, record the key data during the test, and carefully observe the response of the side of the mold. After the test, release the pressure, reset the pressure testing device, release the telescopic rod 208, remove the mold, and if necessary, place it on the placement platform 5 on the protective pad 501.

[0075] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure testing mechanism for mold design, characterized by, include: Framework (1); A slide rail (104) is fixedly connected to the side end of the frame (1); A slider (103) is slidably connected to a slide rail frame (104), and a screw nut block (102) is fixedly connected to the side end of the slider (103). The first connecting seat (105) is fixedly connected to the upper end of the lead screw nut block (102); The first rotating rod (106) is connected to the side end of the frame (1). The first rotating rod (106) is connected to the first connecting seat (105). The circumferential surface of the first rotating rod (106) is fixedly connected to the second connecting seat (201). The clamping mechanism includes at least one set of L-plates (2), clamping plates (204), limiting grooves (202), limiting blocks (203), mold (4) engaging components, and limiting components. The L-plates (2) are fixedly connected to the upper end of the second connecting seat (201). The clamping plates (204) are connected to the upper end of the L-plates (2). The limiting grooves (202) are opened at the upper end of the L-plates (2). The limiting blocks (203) are fixedly connected to the lower end of the clamping plates (204). The limiting blocks (203) match the limiting grooves (202). The mold (4) is connected to the upper end of the clamping plates (204). The engaging components are disposed between the L-plates (2) and the clamping plates (204) to clamp the mold (4). The limiting components are disposed on the clamping plates (204) to position the mold (4).

2. The pressure testing mechanism for mold design as described in claim 1, characterized in that: The engaging component includes a telescopic rod (208) and a spring (209). The telescopic rod (208) is fixedly connected to the side end of the L plate (2). The output end of the telescopic rod (208) is connected to the clamping plate (204). The spring (209) is sleeved and connected to the circumferential surface of the telescopic rod (208).

3. The pressure testing mechanism for mold design as described in claim 2, characterized in that: The limiting component includes a positioning hole (401), a mounting groove (205), a positioning pin (206), and an anti-slip pad (207). The positioning hole (401) is located at the lower end of the mold (4), the mounting groove (205) is located at the upper end of the clamping plate (204), the positioning pin (206) is connected to the mounting groove (205), and the anti-slip pad (207) is sleeved and connected to the circumferential surface of the positioning pin (206). The positioning pin (206) matches the positioning hole (401), and the anti-slip pad (207) matches the mold (4).

4. The pressure testing mechanism for mold design as described in claim 1, characterized in that: A bidirectional lead screw (101) is rotatably connected to the side end of the frame (1). The bidirectional lead screw (101) is connected to a lead screw nut block (102). A first handle (107) is fixedly connected to the side end of the bidirectional lead screw (101). A first ratchet (108) is fixedly connected to the circumferential surface of the bidirectional lead screw (101). A first ratchet tooth (109) is rotatably connected to the side end of the frame (1) via a rotating shaft. The first ratchet tooth (108) and the first ratchet tooth (109) intermittently mesh. A first release block (110) is fixedly connected to the side end of the first ratchet tooth (109). A second rotating rod (3) is rotatably connected to the side end of the frame (1). A second handle (307) is fixedly connected to the end of the frame (1), a second ratchet (304) is fixedly connected to the circumferential surface of the second rotating rod (3), a second ratchet (305) is rotatably connected to the side end of the frame (1) via a rotating shaft, the second ratchet (304) and the second ratchet (305) are intermittently meshed, a second release block (306) is fixedly connected to the side end of the second ratchet (305), a second sprocket (302) is fixedly connected to the circumferential surface of the first rotating rod (106), a first sprocket (301) is fixedly connected to the circumferential surface of the second rotating rod (3), and a chain (303) is rotatably connected to the circumferential surfaces of the first sprocket (301) and the second sprocket (302).

5. The pressure testing mechanism for mold design as described in claim 1, characterized in that: The side end of the frame (1) is fixedly connected to a placement platform (5), and the upper end of the placement platform (5) is fixedly connected to a protective pad (501). The placement platform (5) matches the mold (4).

6. The pressure testing mechanism for mold design as described in claim 1, characterized in that: The frame (1) is provided with a mounting bracket (6) on its side end. A pressure testing device (601) is fixedly connected to the upper end of the mounting bracket (6). The pressure testing device (601) is matched with the mold (4).

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