A mold for manufacturing a seal ring

Abstract

The utility model belongs to the field of sealing ring manufacturing technology, concretely relates to a mould for sealing ring manufacturing, including upper die cover and the lower die cover of installation in the bottom surface of upper die cover, one side surface of upper die cover is equipped with the liquid filling interface, the bottom surface of upper die cover is installed with upper die pressing plate, the bottom surface of upper die pressing plate is installed with the inlay upper base, the surface of lower die cover is connected with lower die pressing plate, the utility model discloses a sealing ring blank is placed on the surface of lower die cover, and is sleeved on the upper side of lower die pressing plate, the upper die cover and lower die cover are closed mould at this moment, and the liquid filling interface is filled to the liquid storage tank, the sealing ring blank is pressed by the liquid in the liquid storage tank at this moment, and the upper die pressing plate, lower die pressing plate and the appearance shape of inner inlay in mould are expanded and deformed, so that the required shape and size are obtained, in addition, the inner inlay can be replaced through locking bolt, and the efficiency and manufacturing quality of sealing ring manufacturing are improved.

Description

Technical Field

[0001] This utility model belongs to the field of sealing ring manufacturing technology, specifically relating to a mold for manufacturing sealing rings. Background Technology

[0002] Sealing rings are key components used in high-end equipment such as aero engines and gas turbines to reduce fluid leakage and improve energy efficiency. Their manufacturing precision and performance directly affect the reliability of the entire machine.

[0003] In traditional sealing ring manufacturing methods, stamping dies and forging dies are the most commonly used process equipment: stamping dies, with their efficient mass production capabilities, are mostly used for the production of thin-plate and relatively simple ring parts, quickly obtaining sealing rings that meet basic dimensional requirements through processes such as blanking and bending; forging dies are suitable for manufacturing thick-walled sealing rings made of high-strength alloy materials, using the forging force at high or room temperature to cause plastic deformation of the blank in the cavity, thereby achieving densification and strengthening of the mechanical properties of the parts; However, as the requirements for the performance and structure of sealing rings in high-end equipment continue to upgrade, their shapes and structures are becoming increasingly diverse and complex. For example, aero-engine oil sealing rings often have intricate structures such as labyrinthine grooves, stepped cross-sections, and honeycomb-shaped internal holes. Sealing rings in some special scenarios also need to achieve variable wall thickness, irregular contours, or multi-material composite molding. Faced with these complex requirements, traditional stamping and forging methods have gradually revealed obvious limitations: stamping processes are limited by the forming method of rigid dies, making it difficult to accurately fill deep cavities and complex curved surfaces, and are prone to excessive wall thickness deviations or cracks due to uneven local stress; while forging processes can ensure the density of materials, it is extremely difficult to control the forming precision of micro-grooves and thin-walled features, often requiring a large amount of machining to correct dimensions, which not only increases material waste and production costs, but may also disrupt the internal fiber flow of the parts, affecting their mechanical properties. Utility Model Content

[0004] The purpose of this invention is to provide a mold for manufacturing sealing rings, aiming to solve the obvious limitations that traditional stamping and forging methods have gradually revealed: stamping is limited by the forming method of rigid molds, making it difficult to accurately fill deep cavities and complex curved surfaces, and is prone to excessive deviation in part wall thickness or cracks due to uneven local stress; although forging can ensure the density of materials, it is extremely difficult to control the forming accuracy of micro-grooves and thin-walled features, and often requires a lot of machining to correct the dimensions, which not only increases material waste and production costs, but may also damage the internal fiber flow of the part and affect its mechanical properties.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mold for manufacturing a sealing ring, comprising an upper mold cover and a lower mold cover installed on the bottom surface of the upper mold cover, wherein a liquid filling port is provided on one side surface of the upper mold cover, an upper mold pressing plate is installed on the bottom surface of the upper mold cover, an insert upper base is installed on the bottom surface of the upper mold pressing plate, and a lower mold pressing plate is connected to the surface of the lower mold cover. The lower mold plate is fitted with a lower base of inserts, and the lower base of inserts is fitted with an inner insert. After the upper mold cover and the lower mold cover are closed, they together with the inner insert to form a liquid storage tank. A buffer spring is fitted on the surface of the upper base of inserts near the upper mold plate, and a locking bolt is connected through the surface of the inner insert.

[0006] In order to improve the manufacturing effect, as a mold for manufacturing a sealing ring according to this utility model, preferably, the edge of the inner insert has a boss structure, and the inner insert is detachable from the surface of the lower base of the insert by locking bolts.

[0007] To facilitate liquid filling, as a mold for manufacturing a sealing ring according to this utility model, preferably, the inner wall of the liquid filling interface is provided with threads, and the liquid filling interface is connected to the liquid storage tank.

[0008] To improve the sealing performance of the mold, as a mold for manufacturing a sealing ring according to this utility model, preferably, a sealing ring is installed at the mold opening of the upper mold cover and the lower mold cover, and a sealing strip is installed at the opening between the upper mold pressure plate and the lower mold pressure plate and the upper mold cover and the lower mold cover, respectively.

[0009] In order to improve the protection effect of the sealing ring, as a mold for manufacturing the sealing ring according to this utility model, preferably, the base of the insert is formed by a buffer spring and the upper mold plate to form an elastic buffer structure.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention places the sealing ring blank on the surface of the lower mold cover and fits it onto the lower mold pressure plate. Then, the upper and lower mold covers are closed, and liquid is filled into the storage tank through the filling interface. At this time, the sealing ring blank is subjected to the pressure of the liquid inside the storage tank, and expands and deforms according to the external shape of the upper mold pressure plate, lower mold pressure plate and inner insert inside the mold, thereby obtaining the required shape and size. In addition, the inner insert can be replaced by locking bolts, which improves the efficiency and manufacturing quality of sealing ring manufacturing. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the overall assembly structure of the mold provided in the embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the mold provided in an embodiment of this application.

[0013] Figure 3 This is a schematic diagram of the inlay mounting structure provided in an embodiment of this application.

[0014] Figure 4 This is a schematic diagram of the sealing strip connection structure provided in an embodiment of this application.

[0015] Figure 5 This is a schematic diagram of the buffer spring mounting structure provided in an embodiment of this application.

[0016] Figure 6 This is an exploded view of the inlay installation structure provided in an embodiment of this application.

[0017] In the diagram: 1. Upper mold cover; 2. Lower mold cover; 3. Filling port; 4. Upper mold pressure plate; 5. Upper base of insert; 6. Lower mold pressure plate; 7. Lower base of insert; 8. Inner insert; 9. Liquid storage tank; 10. Sealing ring; 11. Sealing strip; 12. Buffer spring; 13. Locking bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-6 The present invention provides the following technical solution: a mold for manufacturing a sealing ring, including an upper mold cover 1 and a lower mold cover 2 installed on the bottom surface of the upper mold cover 1. A liquid filling port 3 is provided on one side surface of the upper mold cover 1. An upper mold pressure plate 4 is installed on the bottom surface of the upper mold cover 1. An insert upper base 5 is installed on the bottom surface of the upper mold pressure plate 4. A lower mold pressure plate 6 is connected to the surface of the lower mold cover 2. The surface of the lower mold plate 6 is fitted with a lower base 7, and the surface of the lower base 7 is fitted with an inner insert 8. After the upper mold cover 1 and the lower mold cover 2 are closed, they together with the inner insert 8 to form a liquid storage tank 9. The surface of the upper base 5 of the insert near the upper mold plate 4 is fitted with a buffer spring 12, and the surface of the inner insert 8 is connected by a locking bolt 13.

[0020] Preferably, the edge of the inner insert 8 has a boss structure, and the inner insert 8 is detachable from the surface of the lower base 7 by locking bolts 13. In practical use, the use of detachable inner insert 8 makes it easy to change the shape of the inner insert 8 required for different steps, thus improving the manufacturing effect of the sealing ring; Preferably, the inner wall of the filling interface 3 is threaded, and the filling interface 3 is connected to the liquid storage tank 9. In actual use, the liquid supply end is connected through the filling interface 3 to facilitate liquid filling inside the mold and generate pressure, which facilitates the extrusion molding of the subsequent sealing ring blank.

[0021] Preferably, sealing rings 10 are installed at the mold closing openings of the upper mold cover 1 and the lower mold cover 2, and sealing strips 11 are installed at the openings between the upper mold pressure plate 4 and the lower mold pressure plate 6 and the upper mold cover 1 and the lower mold cover 2, respectively. In actual use, the use of sealing rings 10 and sealing strips 11 ensures the sealing between the upper mold cover 1 and the lower mold cover 2, and at the same time ensures the sealing between the upper mold pressure plate 4 and the lower mold pressure plate 6 and the mold, thus preventing leakage when liquid is filled and improving the quality of the sealing ring product.

[0022] Preferably, the upper base 5 of the insert forms an elastic buffer structure with the upper mold pressure plate 4 through the buffer spring 12. In actual use, when the upper mold cover 1 is in the process of mold closing, the use of the buffer spring 12 improves the buffering effect on the upper mold pressure plate 4, avoiding damage to the sealing ring blank.

[0023] The working principle of this utility model is as follows: First, the sealing ring blank is placed on the surface of the lower mold cover 2 and fitted onto the lower mold pressure plate 6. Then, the upper mold cover 1 and the lower mold cover 2 are closed, and liquid is filled into the liquid storage tank 9 through the liquid filling interface 3. At this time, the sealing ring blank is subjected to the pressure of the liquid inside the liquid storage tank 9, and expands and deforms according to the external shape of the upper mold pressure plate 4, the lower mold pressure plate 6 and the inner insert 8 inside the mold, thereby obtaining the required shape and size. In addition, the inner insert 8 can be replaced by locking bolts 13, which improves the efficiency and manufacturing quality of sealing ring manufacturing.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mold for manufacturing a sealing ring, comprising an upper mold cover (1) and a lower mold cover (2) mounted on the bottom surface of the upper mold cover (1), characterized in that: The upper mold cover (1) has a liquid filling port (3) on one side surface, the upper mold cover (1) has an upper mold plate (4) installed on the bottom surface, the upper mold plate (4) has an insert base (5) installed on the bottom surface, and the lower mold cover (2) has a lower mold plate (6) connected to its surface. The lower mold plate (6) is fitted with a lower base (7), and the lower base (7) is fitted with an inner insert (8). After the upper mold cover (1) and the lower mold cover (2) are closed, they together with the inner insert (8) to form a liquid storage tank (9). The upper base (5) of the insert is fitted with a buffer spring (12) near the upper mold plate (4). The inner insert (8) is connected with a locking bolt (13).

2. The mold for manufacturing a sealing ring according to claim 1, characterized in that: The inner insert (8) has a boss structure at the edge, and the inner insert (8) is detachable on the surface of the lower base (7) of the insert by means of locking bolts (13).

3. The mold for manufacturing a sealing ring according to claim 1, characterized in that: The inner wall of the filling interface (3) is provided with threads, and the filling interface (3) is connected to the liquid storage tank (9).

4. The mold for manufacturing a sealing ring according to claim 1, characterized in that: A sealing ring (10) is installed at the mold closing opening of the upper mold cover (1) and the lower mold cover (2), and a sealing strip (11) is installed at the opening between the upper mold plate (4) and the lower mold plate (6) and the upper mold cover (1) and the lower mold cover (2), respectively.

5. The mold for manufacturing a sealing ring according to claim 1, characterized in that: The upper base (5) of the insert forms an elastic buffer structure with the upper molding plate (4) through the buffer spring (12).

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