Slotting stamping die for rupture disk gasket

Abstract

The slotting stamping die comprises an upper die and a lower die, the bottom of the upper die is provided with an upper die stamping head, the lower die is arranged below the upper die, the top of the lower die is provided with a material returning plate, and a guide assembly is arranged between the upper die and the lower die. The upper die and the lower die are mounted on a punching machine; according to the utility model, the upper die punching head is driven by the air cylinder to flatten and slit the gasket, the air cylinder drives the pressing plate and the upper die to move upwards for resetting, the spring is not pressed and is restored under the elastic restoring force of the spring, and the stripper plate is pushed to move upwards and eject the slit gasket, so that the slit gasket can be separated from the lower die; by means of the device, the gasket can be conveniently taken out, so that the gasket is demoulded, the three procedures of flattening, slotting and demoulding of the gasket can be integrated into one procedure, the slotting time of the gasket is greatly shortened, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rupture disc gaskets, and particularly relates to a slitting stamping die for rupture disc gaskets. Background Technique

[0002] The rupture disc device technology is a new pressure equipment overpressure safety relief technology developed in China in recent years. The rupture disc device is an important overpressure safety device for pressure vessels and pipelines. It can burst at a specified temperature and pressure to release pressure, ensuring the safety of equipment and operators. Its safety device has the advantages of simple structure, sensitivity, accuracy, no leakage, strong discharge capacity, etc. It can work reliably in viscous, high-temperature, low-temperature, and corrosive environments and is an ideal safety device for pressure vessels. It is widely used in equipment such as petroleum, chemical industry, coal, fertilizer, medicine, metallurgy, dust removal, light industry, nuclear power, fire protection, and aviation.

[0003] The flat slotted rupture disc device is composed of a pressure ring, a rupture disc, and a gasket. The rupture disc is flanged to wrap the pressure ring and is installed together with the gasket during use. In the actual installation process, the gasket needs to be completely matched with the rupture disc. Otherwise, it is easy to cause eccentricity when the gasket and the rupture disc are combined, thus affecting the bursting pressure of the rupture disc device. Currently, the slitting of existing gaskets is usually completed manually. First, the gasket is flattened, and after flattening, it needs to be manually transferred to a stamping device for stamping and slitting. The operation is troublesome, the processing time is long, and the processing cost is relatively high. In view of the above defects, it is necessary to design a slitting stamping die for rupture disc gaskets. Content of the Utility Model

[0004] The purpose of the utility model is to provide a slitting stamping die for rupture disc gaskets to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A slitting stamping die for rupture disc gaskets includes an upper die and a lower die. An upper die stamping head is installed at the bottom of the upper die. The lower die is arranged below the upper die. A stripping plate is installed at the top of the lower die. A guiding component is arranged between the upper die and the lower die. The upper die and the lower die are installed on a punching press.

[0006] Preferably, the upper die includes an upper die fixing plate and an upper die mounting seat. The upper die fixing plate is fixedly installed on the upper surface of the upper die mounting seat through a first bolt.

[0007] Preferably, the upper die stamping head is fixedly installed on the lower surface of the upper die mounting seat through a second bolt. The upper die stamping head is of a cylindrical structure. A first cavity is formed in the center of the upper die stamping head. A first groove is formed in the inner wall of the upper die stamping head. There are multiple first grooves, and the multiple first grooves are arranged at uniform intervals. A first arc groove is formed at one end of the inner wall of the upper die stamping head away from the first groove.

[0008] Preferably, the lower die includes a lower die bottom plate, a lower die fixing plate and a lower die. Multiple step grooves are formed in the lower die bottom plate, and the multiple step grooves are arranged at uniform intervals. The lower die bottom plate is fixedly installed on the upper surface of the lower die fixing plate through a third bolt. A receiving cavity is formed in the center of the lower die fixing plate.

[0009] Preferably, the stripping plate is slidably arranged in the receiving cavity. The stripping plate is of a cylindrical structure. A second cavity is formed in the center of the stripping plate. A second groove is formed in the inner wall of the stripping plate. There are multiple second grooves, and the multiple second grooves are arranged at uniform intervals.

[0010] Preferably, a second arc groove is formed at one end of the inner wall of the stripping plate away from the second groove. Multiple connecting rods are arranged at the bottom of the stripping plate, and the multiple connecting rods are arranged at uniform intervals. One end of the connecting rod is fixedly connected to the bottom of the stripping plate, and the other end of the connecting rod passes through the step groove and is fixedly connected to the stopper. A spring is sleeved on the middle of the connecting rod. One end of the spring is fixedly connected to the stripping plate, and the other end of the spring is fixedly connected to the lower die fixing plate.

[0011] Preferably, a lower die is arranged inside the stripping plate. The lower die is of a cylindrical structure. A third groove is formed in the outer wall of the lower die. There are multiple third grooves, and the multiple third grooves are arranged at uniform intervals. A third arc groove is formed at one end of the outer wall of the lower die away from the third groove. The lower die is installed on the lower die bottom plate through a fourth bolt.

[0012] Preferably, the guiding assembly includes guiding rods and guiding holes. There are multiple guiding rods, and the multiple guiding rods are uniformly arranged on the lower die fixing plate. An upper die mounting seat is arranged above the lower die fixing plate, and guiding holes matching with the guiding rods are formed in the upper die mounting seat.

[0013] Compared with the prior art, the slitting stamping die for a rupture disk gasket of the present utility model is provided with an upper die, an upper die stamping head, a lower die and a stripping plate. The pressing plate is pushed downward by a cylinder, and the upper die and the upper die stamping head also move downward accordingly. The upper die stamping head flattens and slits the gasket. The cylinder drives the pressing plate and the upper die to move upward for resetting. The spring is not compressed and returns to its original state under its own elastic restoring force, pushing the stripping plate upward and ejecting the slit gasket, enabling the slit gasket to be separated from the lower die, so as to facilitate the removal of the slit gasket, thereby realizing the demolding of the gasket. Furthermore, the three processes of flattening, slitting and demolding of the gasket can be integrated into one process, greatly shortening the slitting time of the gasket and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the upper die in the present utility model;

[0017] Figure 3 is a structural schematic diagram of the lower die in the present utility model;

[0018] Figure 4 is Figure 1 a sectional view taken along line A-A in

[0019] Figure 5 is a structural schematic diagram of the gasket in the present utility model.

[0020] In the drawings:

[0021] 1. Upper die; 2. Upper die stamping head; 3. Lower die; 4. Stripping plate; 5. Guide assembly; 6. Upper die fixing plate; 7. Upper die mounting seat; 8. First bolt; 9. Second bolt; 10. First cavity; 11. First groove; 12. First arc groove; 13. Lower die bottom plate; 14. Lower die fixing plate; 15. Step groove; 16. Third bolt; 17. Accommodating cavity; 18. Second cavity; 19. Second groove; 20. Second arc groove; 21. Connecting rod; 22. Block; 23. Spring; 24. Lower die; 25. Third groove; 26. Third arc groove; 27. Fourth bolt; 28. Guide rod; 29. Guide hole; 30. Gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 As shown, the present invention provides a technical solution: a slotted stamping die for a rupture disc gasket, including an upper die 1 and a lower die 3. The bottom of the upper die 1 is installed with an upper die stamping head 2. A lower die 3 is arranged below the upper die 1. The top of the lower die 3 is installed with a stripper plate 4. A guiding component 5 is arranged between the upper die 1 and the lower die 3. The upper die 1 and the lower die 3 are installed on a punching press.

[0024] The upper die 1 in this embodiment includes an upper die fixing plate 6 and an upper die mounting seat 7. The upper die fixing plate 6 is fixedly installed on the upper surface of the upper die mounting seat 7 through a first bolt 8.

[0025] The upper die stamping head 2 in this embodiment is fixedly installed on the lower surface of the upper die mounting seat 7 through a second bolt 9. The upper die stamping head 2 is of a cylindrical structure. A first cavity 10 is opened in the center of the upper die stamping head 2. A first groove 11 is opened on the inner wall of the upper die stamping head 2. There are a plurality of the first grooves 11. The plurality of the first grooves 11 are arranged at uniform intervals. A first arc groove 12 is opened at one end of the inner wall of the upper die stamping head 2 away from the first groove 11. Fixing the upper die stamping head 2 through the second bolt 9 facilitates the installation and disassembly of the upper die stamping head 2.

[0026] The lower die 3 in this embodiment includes a lower die bottom plate 13, a lower die fixing plate 14 and a lower die 24. A plurality of stepped grooves 15 are opened on the lower die bottom plate 13. The plurality of stepped grooves 15 are arranged at uniform intervals. The lower die bottom plate 13 is fixedly installed on the upper surface of the lower die fixing plate 14 through a third bolt 16. A receiving cavity 17 is opened in the center of the lower die fixing plate 14.

[0027] In this embodiment, the stripper plate 4 is slidably disposed in the receiving cavity 17. The stripper plate 4 has a cylindrical structure. A second cavity 18 is formed at the center of the stripper plate 4. A second groove 19 is formed on the inner wall of the stripper plate 4. There are a plurality of the second grooves 19, and the plurality of the second grooves 19 are arranged at uniform intervals. A second arc-shaped groove 20 is formed at one end of the inner wall of the stripper plate 4 away from the second groove 19. A plurality of connecting rods 21 are arranged at the bottom of the stripper plate 4, and the plurality of connecting rods 21 are arranged at uniform intervals. One end of the connecting rod 21 is fixedly connected to the bottom of the stripper plate 4, and the other end of the connecting rod 21 passes through the stepped groove 15 and is fixedly connected to the stopper 22. A spring 23 is sleeved on the middle of the connecting rod 21. One end of the spring 23 is fixedly connected to the stripper plate 4, and the other end of the spring 23 is fixedly connected to the lower die fixing plate 14.

[0028] A lower die 24 is disposed inside the stripper plate 4 in this embodiment. The lower die 24 has a cylindrical structure. A third groove 25 is formed on the outer wall of the lower die 24. There are a plurality of the third grooves 25, and the plurality of the third grooves 25 are arranged at uniform intervals. A third arc-shaped groove 26 is formed at one end of the outer wall of the lower die 24 away from the third groove 25. The lower die 24 is installed on the lower die bottom plate 13 through a fourth bolt 27. Fixing the lower die 24 through the fourth bolt 27 facilitates the installation and disassembly of the lower die 24.

[0029] The guiding assembly 5 in this embodiment includes guiding rods 28 and guiding holes 29. There are a plurality of the guiding rods 28, and the plurality of guiding rods 28 are evenly arranged on the lower die fixing plate 14. An upper die mounting seat 7 is disposed above the lower die fixing plate 14, and guiding holes 29 matching the guiding rods 28 are formed on the upper die mounting seat 7.

[0030] The punching machine in this embodiment includes a cylinder. The cylinder is installed on a cylinder fixing plate. Support plates are installed on both sides of the bottom end of the cylinder fixing plate, and the support plates are installed on the base. A lower die bottom plate 13 is installed on the base. The piston rod of the cylinder is fixedly connected to the top of the pressing plate, and an upper die fixing plate 6 is installed at the bottom of the pressing plate.

[0031] Working principle of the utility model: Place the gasket at the center of the lower die fixing plate 14. At this time, the lower die 3 is not under pressure, and the stripper plate 4, the lower die fixing plate 14, and the lower die 24 are in the same plane, so that the gasket is placed on the stripper plate 4, the lower die fixing plate 14, and the lower die 24. The cylinder acts to push the pressure plate downward, and the upper die 1 and the upper die stamping head 2 also move downward accordingly. During the downward movement of the upper die stamping head 2, it contacts, flattens, and compresses the gasket, thereby realizing the flattening of the gasket. When the stripper plate 4 is subjected to the pressure of the upper die stamping head 2, it compresses the spring 23 and moves downward, causing a relative shear displacement between the stripper plate 4 and the lower die fixing plate 14 and the lower die 24, so that the gasket is slit according to the circular gap between the stripper plate 4 and the lower die 24. At the same time, during the slitting process of the gasket, since a plurality of grooves are provided on both the stripper plate 4 and the lower die 24, and an arc-shaped groove is provided on both the stripper plate 4 and the lower die 24, a plurality of short joints and an arc-shaped joint are connected to the circular seam of the gasket. Through the arrangement of the plurality of short joints and an arc-shaped joint, the circular seam on the gasket is prevented from breaking during the slitting process of the gasket, and multiple arc-shaped seams are formed on the gasket, thereby realizing the slitting of the gasket.

[0032] After the slitting of the gasket is completed, the cylinder works to drive the pressure plate and the upper die 1 to move upward for resetting. The spring 23 is not under pressure and returns to its original state under its own elastic restoring force, pushing the stripper plate 5 upward and ejecting the slit gasket, which can separate the slit gasket from the lower die, facilitating the removal of the slit gasket, thereby realizing the demolding of the gasket. Furthermore, the flattening, slitting, and demolding of the gasket can be integrated into one process, greatly shortening the slitting time of the gasket and improving the processing efficiency.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A slitting stamping die for a rupture disc gasket, characterized in that: It includes an upper die (1) and a lower die (3). An upper die stamping head (2) is installed at the bottom of the upper die (1). The lower die (3) is arranged below the upper die (1). A stripping plate (4) is installed at the top of the lower die (3). A guiding component (5) is arranged between the upper die (1) and the lower die (3). The upper die (1) and the lower die (3) are installed on a punching press. The lower die (3) includes a lower die bottom plate (13), a lower die fixing plate (14) and a lower die (24). A plurality of stepped grooves (15) are formed in the lower die bottom plate (13). The plurality of stepped grooves (15) are arranged at uniform intervals. The lower die bottom plate (13) is fixedly installed on the upper surface of the lower die fixing plate (14) through a third bolt (16). A receiving cavity (17) is formed in the center of the lower die fixing plate (14). The stripping plate (4) is slidably arranged in the receiving cavity (17). The stripping plate (4) is of a cylindrical structure. A second cavity (18) is formed in the center of the stripping plate (4). A second groove (19) is formed in the inner wall of the stripping plate (4). There are a plurality of the second grooves (19). The plurality of second grooves (19) are arranged at uniform intervals. A second arc-shaped groove (20) is formed at one end of the inner wall of the stripping plate (4) far from the second groove (19). A plurality of connecting rods (21) are arranged at the bottom of the stripping plate (4). The plurality of connecting rods (21) are arranged at uniform intervals. One end of the connecting rod (21) is fixedly connected to the bottom of the stripping plate (4). The other end of the connecting rod (21) passes through the stepped groove (15) and is fixedly connected to a stop block (22). A spring (23) is sleeved on the middle of the connecting rod (21). One end of the spring (23) is fixedly connected to the stripping plate (4). The other end of the spring (23) is fixedly connected to the lower die fixing plate (14). The lower die (24) is arranged inside the stripping plate (4). The lower die (24) is of a cylindrical structure. A third groove (25) is formed in the outer wall of the lower die (24). There are a plurality of the third grooves (25). The plurality of third grooves (25) are arranged at uniform intervals. A third arc-shaped groove (26) is formed at one end of the outer wall of the lower die (24) far from the third groove (25). The lower die (24) is installed on the lower die bottom plate (13) through a fourth bolt (27).

2. The slitting stamping die for a rupture disc gasket according to claim 1, characterized in that: The upper die (1) includes an upper die fixing plate (6) and an upper die mounting seat (7). The upper die fixing plate (6) is fixedly installed on the upper surface of the upper die mounting seat (7) through a first bolt (8).

3. The slitting stamping die for a rupture disc gasket according to claim 1, characterized in that: The upper die stamping head (2) is fixedly installed on the lower surface of the upper die mounting seat (7) through a second bolt (9). The upper die stamping head (2) is of a cylindrical structure. A first cavity (10) is formed in the center of the upper die stamping head (2). A first groove (11) is formed in the inner wall of the upper die stamping head (2). There are a plurality of the first grooves (11). The plurality of first grooves (11) are arranged at uniform intervals. A first arc-shaped groove (12) is formed at one end of the inner wall of the upper die stamping head (2) far from the first groove (11).

4. The slitting stamping die for a rupture disc gasket according to claim 1, wherein: The guiding component (5) includes guiding rods (28) and guiding holes (29). A plurality of the guiding rods (28) are provided, and the plurality of guiding rods (28) are evenly arranged on the lower die fixing plate (14). An upper die mounting seat (7) is provided above the lower die fixing plate (14), and guiding holes (29) matching with the guiding rods (28) are formed in the upper die mounting seat (7).

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