Device for regulating and controlling pressure in high-pressure cavity based on cubic press

Abstract

The invention discloses a device for regulating and controlling pressure in a high-pressure cavity based on a cubic press, and belongs to the technical field of cubic presses. A pressure regulating and controlling device in a high-pressure cavity based on a cubic press comprises a cylinder body and a piston rod sliding in the cylinder body, a hammer head is fixed to the outer end of the piston rod, a pressure detecting mechanism used for detecting the stress of the hammer head is arranged on the surface of the hammer head, and a pressure relief hole communicated with a pressurizing cavity is formed in the back face of the cylinder body. The pressure relief hole is used for controlling and releasing oil pressure through a pressure regulating assembly; by arranging the pressure regulating assembly, when the pressurization cavity needs to be subjected to pressure relief, the rotating shaft drives the first rotating disc to rotate the included angle between the two blocking sections, in the process, a first blocking ball temporarily corresponds to a release groove, at the moment, a gap is formed between the first blocking ball and a pressure relief hole, and a small amount of hydraulic oil in the pressurization cavity flows into a sealing cover; therefore, the pressure relief amount is precisely controlled, and excessive pressure relief is avoided.

Description

Technical Field

[0001] This invention relates to the field of six-sided top press technology, and more particularly to a pressure regulation device for a high-pressure cavity based on a six-sided top press. Background Technology

[0002] Synthetic diamond and other superhard materials are essential materials for modern industry, with irreplaceable applications in machining, geological drilling, and electronic packaging. The six-sided top press, with its symmetrical structure, high production efficiency, and ease of operation, has become the most widely used core equipment in the domestic superhard material synthesis field.

[0003] During the operation of the six-sided jacking press, a high-pressure chamber is formed by the combined surfaces of six tungsten carbide cemented carbide hammers. A hydraulic system drives the hammers to apply ultra-high pressure to the pyrophyllite blocks and synthetic blocks within the chamber, combined with high-current heating, thus creating a high-temperature, high-pressure environment within the chamber necessary for the transformation of graphite into diamond. Precise pressure control is a key factor determining the quality of the synthesized product, the safety of equipment operation, and the service life of the hammers.

[0004] For example, patent CN120242871B (a six-sided top press hammer device and a method for processing diamond with high thermal conductivity) achieves accurate detection of the hammer head surface pressure by directly installing a pressure detection mechanism on the hammer head surface. When hammer head pressure overload is detected, the control system drives the hydraulic pumping mechanism to suck and depressurize the extension drive chamber, causing the hydraulic oil to flow out instantly, thereby quickly reducing the hammer head surface pressure and preventing the top hammer from breaking due to pressure overload.

[0005] However, in practical applications, the aforementioned rapid pressure relief mechanism still has certain limitations. Its pressure relief method is a one-time conduction; when the pressure relief hole aligns with the through hole, a large amount of hydraulic oil in the extension drive chamber rushes into the contraction drive chamber in a very short time, causing a sudden drop in hammer pressure. While this rapid pressure change can quickly relieve overload, it can also easily lead to new problems: on the one hand, the sudden pressure drop may disrupt the stable thermodynamic equilibrium established in the high-pressure chamber, affecting the continuity and uniformity of crystal growth; on the other hand, excessive pressure relief may lead to insufficient hammer thrust, causing the chamber pressure to fall below the critical value required for synthesis, resulting in synthesis failure. Therefore, how to achieve precise control of the pressure relief process while ensuring safe pressure relief, and avoid interference with the synthesis process due to excessive one-time pressure relief, has become a pressing technical problem to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a high-pressure cavity pressure regulation device based on a six-sided top press.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: The high-pressure chamber pressure regulating device based on a six-sided top press includes a cylinder and a piston rod sliding inside the cylinder. A hammer is fixed to the outer end of the piston rod. A pressure detection mechanism for detecting hammer stress is provided on the surface of the hammer. A pressure relief hole communicating with the pressurization chamber is opened on the back of the cylinder. The pressure relief hole releases oil pressure through a pressure regulating component. The pressure regulating component is located inside a sealing cover. The sealing cover is fixed to the back of the cylinder and is connected to the return chamber through a return pipe.

[0008] In some embodiments, the pressure regulating assembly includes a first turntable that rotates on the back of the cylinder via a rotating shaft and a first plugging ball for sealing the discharge port of the pressure relief hole, the diameter of the first plugging ball being larger than the diameter of the pressure relief hole.

[0009] In some embodiments, a limiting groove is formed on the side of the first turntable facing the cylinder body. The limiting groove is annular and concentrically arranged with the first turntable. Multiple release grooves are formed inside the limiting groove, and the depth of the release groove is greater than the depth of the limiting groove.

[0010] In some embodiments, the cylinder body is provided with a sealing assembly for sealing the inlet of the pressure relief hole. The sealing assembly includes a second turntable disposed at the end of the rotating shaft and a plurality of second sealing balls for sealing the inlet of the pressure relief hole. The plurality of second sealing balls are arranged in a ring and are concentric with the second turntable.

[0011] In some embodiments, the second turntable slides on the end of the shaft via a square slide bar, and the second turntable slides inside the shaft via a guide assembly.

[0012] In some embodiments, the guide assembly includes a guide ring fixed inside a groove and a plurality of guide posts fixed to the outer periphery of a second turntable. A guide groove is provided on the inner side of the guide ring, and the guide posts slide inside the guide groove.

[0013] In some embodiments, a gap is provided between the second turntable and the guide ring.

[0014] In some embodiments, the guide groove includes a plurality of V-shaped portions for driving the second sealing ball to seal the pressure relief hole and a plurality of horizontal portions for separating the second sealing ball from the pressure relief hole. The plurality of V-shaped portions and the plurality of horizontal portions are staggered and connected end to end.

[0015] In some embodiments, the number of guide posts, second blocking balls, clearance grooves, and release grooves are the same, and all are even numbers.

[0016] In some embodiments, a constant pressure hole is provided in the middle of the square slide rod, and the constant pressure hole penetrates the square slide rod.

[0017] Compared with the prior art, the present invention provides a pressure regulation device for a high-pressure cavity based on a six-sided top press, which has the following beneficial effects.

[0018] 1. In this invention, by setting a pressure regulating component, when it is necessary to depressurize the pressurized chamber, the rotating shaft drives the first turntable to rotate the angle between the two sealing sections. During this process, the first sealing ball briefly aligns with the release groove. At this time, a gap is formed between the first sealing ball and the pressure relief hole, and a small amount of hydraulic oil in the pressurized chamber flows into the sealing cover, thereby precisely controlling the amount of pressure relief and avoiding excessive pressure relief.

[0019] 2. In this invention, by setting up a sealing component, the second turntable drives one of the second sealing balls to seal the inlet of the pressure relief hole. The pressure in the pressurization chamber acts on the surface of the second turntable and the second sealing ball, thereby pressing them against the inlet of the pressure relief hole, which can effectively improve the sealing effect of the pressure relief hole and avoid pressure leakage in the pressurization chamber.

[0020] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the first axial structure of the top press in this invention.

[0023] Figure 3 This is a schematic diagram of the second axial structure of the top press in this invention.

[0024] Figure 4 This is a schematic cross-sectional view of the cylinder block in this invention.

[0025] Figure 5 This is a cross-sectional structural diagram of the top press in this invention.

[0026] Figure 6 This is a schematic diagram of the voltage regulating component in this invention.

[0027] Figure 7 This is a schematic diagram of the sealing component in this invention.

[0028] Figure 8 This is a partial cross-sectional structural diagram of the cylinder block in this invention.

[0029] Figure 9 This is a schematic diagram of the structure of the guide component in this invention.

[0030] Figure 10This is a schematic diagram of the guide ring structure in this invention.

[0031] Figure 11 This is a cross-sectional structural diagram of the sealing component in this invention.

[0032] In the picture: 1. Cylinder block; 101. First oil inlet; 102. Second oil inlet; 2. Piston rod; 201. Hammer head; 202. Pressure detection mechanism; 3. Pressure relief hole; 301. Sealing cover; 302. Return pipe; 4. Pressure regulating assembly; 401. First turntable; 402. Rotating shaft; 403. First sealing ball; 404. Limiting groove; 405. Release groove; 406. Support ball; 5. Sealing assembly; 501. Second turntable; 502. Second sealing ball; 503. Square slide bar; 504. Slide groove; 505. Clearance groove; 6. Guide assembly; 601. Guide ring; 602. Guide column; 603. Guide groove; 7. Constant pressure hole. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Reference Figure 1-11 The high-pressure chamber pressure control device based on the six-sided top press includes multiple sets of components fixedly connected to the top press via hinge beams. The top press includes a cylinder 1 and a piston rod 2 sliding inside the cylinder 1. One end of the cylinder 1 is fixed with a first oil inlet 101 for supplying oil to the pressurizing chamber. The surface of the cylinder 1 is provided with a second oil inlet 102 that communicates with the retraction chamber. The pressurizing chamber is used for hydraulic oil to push the piston rod 2 to slide to the outer end of the cylinder 1, and the retraction chamber is used for hydraulic oil to push the piston rod 2 to slide to the inner end of the cylinder 1. A hammer 201 is fixed to the outer end of the piston rod 2. The above structure is a common existing structure, and therefore will not be described in detail. The surface of the hammer head 201 is provided with a pressure detection mechanism 202 for detecting the stress of the hammer head 201. The pressure detection mechanism 202 includes a miniature piezoelectric sensor fixed on the pressure surface of the hammer head 201 and multiple thin film strain gauges fixed on the sealing surface of the hammer head 201. The end face of the hammer head 201 is the pressure surface, and multiple sides of the hammer head 201 are the sealing surfaces.

[0035] Understandably, when the piston rod 2 drives the hammer 201 to pressurize the pyrophyllite, the position pressure of the pressurizing surface is detected by a micro piezoelectric sensor, and the maximum stress on the hammer 201 is detected in real time. The extruded part of the pyrophyllite cooperates with the sealing surface to form a seal. The pressure on the edge of the sealing surface is detected by a thin film strain gauge. At the same time, the sealing condition between the sealing surface and the pyrophyllite can be calculated by the detected pressure, so as to adjust the pressure generated by the top press in a timely manner.

[0036] Specifically, a pressure relief hole 3 is provided on the back of the cylinder body 1, which is connected to the pressurization chamber. The pressure relief hole 3 releases oil pressure through the pressure regulating component 4. The pressure regulating component 4 is located inside the sealing cover 301. The sealing cover 301 is fixed to the back of the cylinder body 1. A return pipe 302 is provided on the surface of the sealing cover 301. The other end of the return pipe 302 is connected to the return chamber.

[0037] Under normal conditions, the pressurizing chamber, the retraction chamber, and the sealing cover 301 are filled with hydraulic oil. When the pressure detection mechanism 202 detects that the pressure of the hammer 201 exceeds the threshold, it sends a signal to the pressure regulating component 4 to open the pressure relief hole 3, allowing the hydraulic oil in the pressurizing chamber to flow into the sealing cover 301 and then into the retraction chamber through the return pipe 302. The amount of oil in the pressurizing chamber is reduced, which reduces the pressure on the piston rod 2 and the hammer 201, preventing the hammer 201 from cracking and fracturing due to pressure overload, thus improving the service life of the hammer 201 and its safety during use.

[0038] Specifically, the pressure regulating component 4 includes a first turntable 401 that rotates on the back of the cylinder 1 via a rotating shaft 402 and a first sealing ball 403 for sealing the discharge port of the pressure relief hole 3. The diameter of the first sealing ball 403 is larger than the diameter of the pressure relief hole 3. The rotating shaft 402 rotates on the surface of the sealing cover 301 and is driven to rotate by a drive motor. The first turntable 401 has a limiting groove 404 on the side facing the cylinder 1. The limiting groove 404 is annular and concentric with the first turntable 401. Multiple release grooves 405 are provided inside the limiting groove 404. The depth of the release grooves 405 is greater than the depth of the limiting groove 404. The multiple release grooves 405 divide the limiting groove 404 into multiple blocking sections. The blocking sections of the limiting groove 404 are used to press the first blocking ball 403 against the discharge port of the pressure relief hole 3. The release grooves 405 are used to separate the first blocking ball 403 from the pressure relief hole 3.

[0039] Understandably, by setting the pressure regulating component 4, in normal conditions, the first sealing ball 403 corresponds to the sealing section of the limiting groove 404. At this time, the first sealing ball 403 abuts against the discharge port of the pressure relief hole 3, sealing the pressure relief hole 3 and maintaining the internal pressure of the pressurizing chamber. When it is necessary to depressurize the pressurizing chamber, the drive motor drives the rotating shaft 402 and the first turntable 401 to rotate the angle between the two sealing sections, so that the sealing section of the next limiting groove 404 corresponds to the first sealing ball 403. During this process, the first sealing ball 403 briefly corresponds to the release groove 405. At this time, a gap is formed between the first sealing ball 403 and the pressure relief hole 3, and a small amount of hydraulic oil in the pressurizing chamber flows into the sealing cover 301, thereby finely controlling the amount of pressure relief and avoiding excessive pressure relief. When one pressure relief is insufficient to reduce the pressure of the hammer 201 to a safe range, the first turntable 401 is rotated again to relieve pressure again. Through the method of small-scale and multiple pressure relief, safe pressure relief is ensured. When the first sealing ball 403 corresponds to the release groove 405, the first sealing ball 403 is partially located in the pressure relief hole 3. The distance between the release groove 405 and the back of the cylinder 1 is insufficient for the first sealing ball 403 to enter between the release groove 405 and the cylinder 1. With the cooperation of the limiting groove 404, the first turntable 401 can be rotated to prevent the first sealing ball 403 from being misaligned with the pressure relief hole 3, and always maintain the corresponding state of the first sealing ball 403 and the pressure relief hole 3.

[0040] Specifically, multiple support balls 406 are fixed on the back of the cylinder body 1. The multiple support balls 406 are arranged in a ring and are concentric with the first turntable 401. When the blocking section of the limiting groove 404 corresponds to the first blocking ball 403, the multiple support balls 406 correspond to the multiple blocking sections respectively.

[0041] Understandably, when the press is working, the oil pressure in the pressurization chamber is too high. When the pressure is released, the oil pressure ejected from the pressure relief hole 3 impacts the first turntable 401. After long-term operation, the surface of the first turntable 401 is deformed, affecting the sealing of the pressure relief hole 3 by the first sealing ball 403. Therefore, by setting multiple first support balls 406, stable support is provided for multiple angles of the first turntable 401 to prevent deformation of the first turntable 401.

[0042] Specifically, the cylinder body 1 is provided with a sealing assembly 5 for sealing the inlet of the pressure relief hole 3. The sealing assembly 5 includes a second turntable 501 disposed at the end of the rotating shaft 402 and a plurality of second sealing balls 502 for sealing the inlet of the pressure relief hole 3. The plurality of second sealing balls 502 are arranged in a ring and are concentric with the second turntable 501. The second turntable 501 is slidably connected to the end of the rotating shaft 402 by a square slide rod 503. The cylinder body 1 is provided with a groove for placing the second turntable 501. The groove is provided with an annular slide groove 504 and a plurality of clearance grooves 505. The annular slide groove 504 is concentric with the second turntable 501. The plurality of clearance grooves 505 are used to provide space for the second sealing balls 502 to seal the pressure relief hole 3. The number of the second blocking ball 502, the avoidance groove 505, and the release groove 405 are the same.

[0043] Understandably, since the pressure in the pressurizing chamber is usually between 5-8 GPa during operation, excessive pressure can easily push the first sealing ball 403 and the pressure relief hole 3 to create a gap, causing the oil in the pressurizing chamber to flow into the return chamber through the sealing cover 301 and the return pipe 302, resulting in the piston rod 2's pressure failing to reach the preset value. Therefore, by setting the sealing component 5, under normal conditions, the second turntable 501 drives one of the second sealing balls 502 to seal the inlet of the pressure relief hole 3, while the remaining second sealing balls 502 correspond to the relief groove 505. When the second sealing ball 502 seals the inlet of the pressure relief hole 3, the pressure in the pressurizing chamber acts on the surface of the second turntable 501 and the second sealing ball 502, thereby pressing them against the inlet of the pressure relief hole 3, which can effectively improve the sealing effect of the pressure relief hole 3 and prevent pressure leakage in the pressurizing chamber. When pressure relief is required, the second turntable 501 slides on the surface of the rotating shaft 402 via the square slide bar 503, causing the second sealing ball 502 to separate from the pressure relief hole 3; the second sealing ball 502 and the first sealing ball 403 simultaneously seal both ends of the pressure relief hole 3, thereby preventing pressure leakage in the pressurization chamber or the retraction chamber and ensuring the pressure stability of the press during normal operation.

[0044] Specifically, the second turntable 501 slides inside the rotating shaft 402 via the guide assembly 6. The guide assembly 6 includes a guide ring 601 fixed inside the groove and a plurality of guide posts 602 fixed on the outer periphery of the second turntable 501. A guide groove 603 is provided on the inner side of the guide ring 601, and the guide posts 602 slide inside the guide groove 603. A gap is provided between the second turntable 501 and the guide ring 601. The guide groove 603 includes multiple V-shaped sections and multiple horizontal sections, which are staggered and connected end to end. When the guide post 602 is located in the V-shaped section, the second sealing ball 502 blocks the pressure relief hole 3. When the guide post 602 is located in the horizontal section, the second sealing ball 502 separates from the pressure relief hole 3.

[0045] Understandably, by setting the guide assembly 6, in the normal state, the guide post 602 is located in the V-shaped part, at which time the second sealing ball 502 seals the pressure relief hole 3; when the second turntable 501 rotates, the guide post 602 slides synchronously in the guide groove 603, causing the guide post 602 to slide to the horizontal part. At this time, it drives the second turntable 501 to slide through the square slide rod 503, causing the second sealing ball 502 to separate from the pressure relief hole 3, and perform pressure relief work; by setting a gap between the second turntable 501 and the guide ring 601, the hydraulic oil can wrap around the second turntable 501, making it easier for the hydraulic oil to enter the pressure relief hole 3.

[0046] Specifically, the number of guide posts 602, second blocking balls 502, clearance grooves 505 and release grooves 405 are the same, and all are even numbers. The second blocking balls 502 correspond to the clearance grooves 505 respectively.

[0047] It is understandable that when the rotating shaft 402 rotates, it synchronously drives the first rotating disk 401 and the second rotating disk 501 to rotate. When the first sealing ball 403 separates from the pressure relief hole 3, the second rotating disk 501 drives the second sealing ball 502 to synchronously separate from the pressure relief hole 3 to relieve pressure. When the first sealing ball 403 seals the pressure relief hole 3, the second rotating disk 501 drives the second sealing ball 502 to synchronously seal the pressure relief hole 3.

[0048] Specifically, a constant pressure hole 7 is provided in the middle of the square slide bar 503, and the constant pressure hole 7 passes through the square slide bar 503.

[0049] Understandably, when the second sealing ball 502 separates from the pressure relief hole 3, the square slide rod 503 will penetrate a portion of the pressurizing chamber. Since the pressurizing chamber is under high pressure, without sufficient space to release the oil pressure, the second turntable 501 and the square slide rod 503 cannot overcome the enormous oil pressure and slide, causing the second sealing ball 502 to fail to separate smoothly from the pressure relief hole 3 and thus fail to release pressure. Therefore, by setting a constant pressure hole 7, when the square slide rod 503 drives the second turntable 501 to move into the pressurizing chamber, hydraulic oil flows into the space at the tail end of the square slide rod 503 through the constant pressure hole 7, providing flow space for the hydraulic oil, thereby greatly reducing the resistance when the second turntable 501 and the square slide rod 503 extend, allowing them to slide smoothly.

[0050] In this invention, when the piston rod 2 drives the hammer head 201 to pressurize the pyrophyllite, the pressure detection mechanism 202 detects the pressure of the hammer head 201. When the pressure exceeds a threshold, a signal is sent, causing the drive motor to rotate the shaft 402 and the first turntable 401 to rotate at the angle between the two sealing sections, simultaneously driving the second turntable 501 to rotate. During this process, the first sealing ball 403 briefly aligns with the release groove 405. At this time, a gap is formed between the first sealing ball 403 and the pressure relief hole 3. Under the action of the guide assembly 6, the second turntable 501 is driven to slide through the square slide rod 503, causing... The second sealing ball 502 separates from the pressure relief hole 3, allowing a small amount of hydraulic oil in the pressurizing chamber to flow into the sealing cover 301, thereby precisely controlling the pressure relief amount and avoiding excessive pressure relief. When one pressure relief is insufficient to reduce the pressure of the hammer 201 to a safe range, the first turntable 401 is rotated again to relieve pressure again. Through multiple small pressure reliefs, safe pressure relief is ensured. By simultaneously sealing both ends of the pressure relief hole 3 with the second sealing ball 502 and the first sealing ball 403, pressure leakage in the pressurizing chamber or retraction chamber is prevented, ensuring the pressure stability of the press during normal operation.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pressure regulating device for a high-pressure cavity based on a six-sided top press, characterized in that, The cylinder includes a cylinder body (1) and a piston rod (2) that slides inside the cylinder body (1). A hammer (201) is fixed at the outer end of the piston rod (2). A pressure detection mechanism (202) for detecting the stress of the hammer (201) is provided on the surface of the hammer (201). A pressure relief hole (3) communicating with the pressurization chamber is opened on the back of the cylinder body (1). The pressure relief hole (3) releases oil pressure through a pressure regulating component (4). The pressure regulating component (4) is located inside a sealing cover (301). The sealing cover (301) is fixed on the back of the cylinder body (1). The sealing cover (301) is connected to the return chamber through a return pipe (302).

2. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 1, characterized in that, The pressure regulating assembly (4) includes a first turntable (401) that rotates on the back of the cylinder (1) via a rotating shaft (402) and a first sealing ball (403) for sealing the outlet of the pressure relief hole (3), wherein the diameter of the first sealing ball (403) is larger than the diameter of the pressure relief hole (3).

3. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 2, characterized in that, The first turntable (401) has a limiting groove (404) on the side facing the cylinder (1). The limiting groove (404) is annular and concentric with the first turntable (401). Multiple release grooves (405) are provided inside the limiting groove (404). The depth of the release groove (405) is greater than the depth of the limiting groove (404).

4. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 1, characterized in that, The cylinder body (1) is provided with a sealing assembly (5) for sealing the inlet of the pressure relief hole (3). The sealing assembly (5) includes a second turntable (501) disposed at the end of the rotating shaft (402) and a plurality of second sealing balls (502) for sealing the inlet of the pressure relief hole (3). The plurality of second sealing balls (502) are arranged in a ring and are concentric with the second turntable (501).

5. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 4, characterized in that, The second turntable (501) slides on the end of the rotating shaft (402) via a square slide bar (503), and the second turntable (501) slides inside the rotating shaft (402) via a guide assembly (6).

6. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 5, characterized in that, The guide assembly (6) includes a guide ring (601) fixed inside the groove and a plurality of guide posts (602) fixed on the outer periphery of the second turntable (501). The guide ring (601) has a guide groove (603) on its inner side, and the guide posts (602) slide inside the guide groove (603).

7. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 6, characterized in that, A gap is provided between the second turntable (501) and the guide ring (601).

8. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 6, characterized in that, The guide groove (603) includes multiple V-shaped portions for driving the second sealing ball (502) to seal the pressure relief hole (3) and multiple horizontal portions for separating the second sealing ball (502) from the pressure relief hole (3). The multiple V-shaped portions and multiple horizontal portions are staggered and connected end to end.

9. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 6, characterized in that, The number of guide posts (602), second sealing balls (502), clearance grooves (505) and release grooves (405) are the same, and all are even numbers.

10. The high-pressure chamber pressure regulating device based on a six-sided top press according to claim 5, characterized in that, A constant pressure hole (7) is provided in the middle of the square slide rod (503), and the constant pressure hole (7) passes through the square slide rod (503).

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