CN217573769U - Oil gas seal mould - Google Patents
Oil gas seal mould Download PDFInfo
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- CN217573769U CN217573769U CN202221781057.6U CN202221781057U CN217573769U CN 217573769 U CN217573769 U CN 217573769U CN 202221781057 U CN202221781057 U CN 202221781057U CN 217573769 U CN217573769 U CN 217573769U
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Abstract
An oil and gas seal mold, comprising: lower mould, last mould, core. The inner part of the lower die is hollow, the inner wall of the lower die protrudes towards the circle center to form a convex ring, and the top surface of the lower die is provided with a first ring platform along the circumferential direction; the upper die is arranged above the lower die, a through hole is formed in the center of the upper die, a second annular table is arranged on the bottom surface of the upper die, the inner wall of the second annular table is matched with the outer wall of the first annular table, the top of the first annular table is abutted to the bottom surface of the upper die, and a convex part is further arranged on the bottom surface of the upper die along the circumferential direction of the bottom surface; in the hollow portion of lower mould was located to the core, the core outside was equipped with the support ring, and the outside butt of support ring is to the inner wall of lower mould to with the bulge loop cooperation, the inboard of bulge loop and the outer wall cooperation of core, the top surface of core is equipped with the third ring platform that is located the through-hole, and the core top surface has the predetermined distance with last mould bottom surface. Can produce to the oil gas seal of thicker wearing layer, utilize the interval between mould and the core, make wearing layer when the shaping, its unnecessary volume of gluing overflows into, guarantee that the wearing layer does not warp.
Description
Technical Field
The utility model relates to a sealing member shaping technical field especially is relevant with an oil gas seal mould.
Background
Among the prior art, there are mainly two kinds of oil gas seal, a side seal lip face adopts the structure of pure rubber, another kind is just at seal lip face on the spraying wearing layer, these two kinds of oil gas seal can be by quick wear in the use, lead to life to descend, and in order to improve the practical life of oil gas seal, increase the thickness of wearing layer, traditional forming die just can not satisfy the requirement, can lead to the wearing layer by extrusion deformation, so need a new mould to adapt to the production of novel oil gas seal.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned relevant prior art, this application provides an oil gas seal mould, can produce to the oil gas seal of thicker wearing layer, utilizes the interval between mould and the core, makes the wearing layer when the shaping, and its unnecessary volume of gluing overflows into, guarantees that the wearing layer does not warp, has stronger practicality.
In order to achieve the above purpose, the utility model adopts the following technology:
an oil and gas seal mold, comprising: lower mould, last mould, core.
The inner part of the lower die is hollow, the inner wall of the lower die protrudes towards the circle center to form a convex ring, a first ring platform is arranged on the top surface of the lower die along the circumferential direction, the outer diameter of the first ring platform is smaller than that of the lower die, and the inner diameter of the first ring platform is larger than that of the lower die; the upper die is arranged above the lower die, a through hole is formed in the center of the upper die, a second annular table is arranged on the bottom surface of the upper die, the inner wall of the second annular table is matched with the outer wall of the first annular table, the top of the first annular table is abutted to the bottom surface of the upper die, and a convex part is further arranged on the bottom surface of the upper die along the circumferential direction of the upper die; the mold core is arranged in the hollow part of the lower mold, a support ring is arranged on the outer side of the mold core, the outer side of the support ring is abutted to the inner wall of the lower mold and matched with the convex ring, the inner side of the convex ring is matched with the outer wall of the mold core, a third ring platform is arranged on the top surface of the mold core and positioned in the through hole, and the top surface of the mold core has a preset distance with the bottom surface of the upper mold; the lower die, the upper die and the core enclose a molding area, and the convex part is positioned in the molding area.
Furthermore, the top surface of the support ring is flush with the top surface of the lower die, a first boss is arranged on the top surface of the support ring along the circumferential direction, and the first boss is located right below the convex portion and has a preset distance.
Further, a concave part is arranged at the junction of the top surface of the support ring and the core, and the concave part is inclined downwards to the inner side of the core by a preset angle.
Furthermore, a step part is arranged on one side of the convex part facing the core, the step part has two steps and is gradually reduced from top to bottom, and the surface of the step part is arc-shaped.
Further, the inner wall of the first annular table is wavy.
Further, the portion of the core above the recess is beveled.
Furthermore, a groove is formed in the inner edge of the top of the first annular table, the bottom surface of the upper die protrudes downwards from two sides of the protruding portion to form a second boss, the bottom surface of the second boss located on the outer side abuts against the bottom of the groove, and the distance between the outer wall and the side wall of the groove is preset.
Furthermore, the protruding distance of the second boss positioned on the inner side is greater than that of the second boss positioned on the outer side, and the inner wall of the second boss positioned on the inner side is an inclined surface and matched with the inclined surface of the mold core.
The utility model discloses beneficial effect lies in:
the oil-gas seal with the thicker wear-resistant layer can be produced, and the excessive glue amount overflows when the wear-resistant layer is formed by utilizing the interval between the upper die and the core, so that the wear-resistant layer is ensured not to deform, the product quality is ensured, and meanwhile, the arranged groove can also contain the excessive rubber when the oil-gas seal is formed, and the oil-gas seal is ensured not to be extruded and deformed; and positioning the PTFE and the annular rubber blank by using a third annular table.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 is a schematic plan sectional structure diagram of an embodiment of the present application.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic sectional plan view of a mold according to an embodiment of the present application.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, however, the described embodiments of the present invention are some, not all embodiments of the present invention.
As shown in fig. 1 to 3, the present embodiment provides an oil and gas seal mold, including: lower mould 1, last mould 2, core 3.
The interior of the lower die 1 is hollow, the inner wall of the lower die protrudes towards the circle center to form a convex ring 11, a first ring platform 12 is arranged on the top surface of the lower die 1 along the circumferential direction, the outer diameter of the first ring platform 12 is smaller than that of the lower die 1, and the inner diameter of the first ring platform 12 is larger than that of the lower die 1; the upper die 2 is arranged above the lower die 1, a through hole 21 is formed in the center of the upper die 2, a second annular table 22 is arranged on the bottom surface of the upper die 2, the inner wall of the second annular table 22 is matched with the outer wall of the first annular table 12, the top of the first annular table 12 is abutted to the bottom surface of the upper die 2, and a convex part 23 is further arranged on the bottom surface of the upper die 2 along the circumferential direction of the bottom surface; the mold core 3 is arranged in the hollow part of the lower mold 1, the outer side of the mold core 3 is provided with a support ring 31, the outer side of the support ring 31 is abutted to the inner wall of the lower mold 1 and is matched with the convex ring 11, the inner side of the convex ring 11 is matched with the outer wall of the mold core 3, the top surface of the mold core 3 is provided with a third annular table 32 to realize the positioning of PTFE and an annular rubber blank, the third annular table 32 is positioned in the through hole 21, and the top surface of the mold core 3 has a preset distance with the bottom surface of the upper mold 2; the lower mold 1, the upper mold 2, and the core 3 enclose a molding area in which the protrusion 23 is located.
Specifically, the top surface of the support ring 31 is flush with the top surface of the lower die 1, and the top surface of the support ring 31 is provided with a first boss 33 along the circumferential direction, the first boss 33 is located directly below the boss 23 and has a predetermined distance, and when in use, an excessive amount of glue enters the area between the upper die 2 and the core 3.
Specifically, the junction between the top surface of the support ring 31 and the core 3 is provided with a recess 34, the recess 34 is inclined downward toward the inside of the core 3 by a predetermined angle, and when in use, the recess 34 forms a lip of an oil-gas seal.
Specifically, the side of the convex portion 23 facing the core 3 is provided with a step portion 24, the step portion 24 has two steps, and the surface of the step portion 24 is in an arc shape gradually decreasing from top to bottom.
Specifically, the inner wall of the first annular table 12 is wavy, so that the outer wall of the oil-gas seal is wavy.
Specifically, the part of the mold core 3 above the concave part 34 is an inclined surface, so that the inner wall of the mold core is ensured to be inclined after oil-gas seal forming.
Specifically, the top inner edge of the first annular table 12 is provided with a groove 13, the bottom surface of the upper die 2 protrudes downwards on both sides of the convex portion 23 to form a second boss 25, wherein the bottom surface of the second boss 25 positioned on the outer side abuts against the bottom of the groove 13, and the outer wall has a predetermined distance from the side wall of the groove 13.
Specifically, the protruding distance of the second boss 25 located on the inner side is greater than the protruding distance of the second boss 25 located on the outer side, and the inner wall of the second boss 25 located on the inner side is an inclined surface, and is matched with the inclined surface of the core 3.
The specific implementation mode is as follows:
firstly, a mold core 3 is placed in a hollow part of a lower mold 1, then a framework of an oil-gas seal is placed on the lower mold 1 and the mold core 3, then annular PTFE is placed on the top surface of the mold core 3 and clamped on the side wall of a third annular table 32, then an annular rubber blank is placed on the annular PTFE, an upper mold 2 is placed on the lower mold 1, the inner wall of a second annular table 22 is matched with the outer wall of a first annular table 12, the third annular table 32 is clamped in a through hole 21 in the center of the upper mold 2, and the oil-gas seal can be formed in the mold after subsequent heating and other processes.
The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An oil and gas seal mold, comprising:
the inner part of the lower die (1) is hollow, a convex ring (11) is formed by protruding the inner wall of the lower die towards the circle center, a first ring platform (12) is arranged on the top surface of the lower die (1) along the circumferential direction, the outer diameter of the first ring platform (12) is smaller than that of the lower die (1), and the inner diameter of the first ring platform (12) is larger than that of the lower die (1);
the upper die (2) is arranged above the lower die (1), a through hole (21) is formed in the center of the upper die (2) in a penetrating mode, a second annular table (22) is arranged on the bottom surface of the upper die (2), the inner wall of the second annular table (22) is matched with the outer wall of the first annular table (12), the top of the first annular table (12) abuts against the bottom surface of the upper die (2), and a convex portion (23) is further arranged on the bottom surface of the upper die (2) in the circumferential direction of the bottom surface;
the mold core (3) is arranged in the hollow part of the lower mold (1), a support ring (31) is arranged on the outer side of the mold core (3), the outer side of the support ring (31) is abutted to the inner wall of the lower mold (1) and matched with the convex ring (11), the inner side of the convex ring (11) is matched with the outer wall of the mold core (3), a third ring platform (32) is arranged on the top surface of the mold core (3), the third ring platform (32) is positioned in the through hole (21), and the top surface of the mold core (3) has a preset distance from the bottom surface of the upper mold (2);
the lower die (1), the upper die (2) and the core (3) enclose a molding area, and the convex part (23) is located in the molding area.
2. The oil and gas seal mold according to claim 1, characterized in that the top surface of the support ring (31) is flush with the top surface of the lower mold (1), and the top surface of the support ring (31) is provided with a first boss (33) along the circumferential direction, the first boss (33) being located directly below the convex portion (23) and having a predetermined distance.
3. The oil and gas seal mold according to claim 1, characterized in that a recess (34) is arranged at the junction of the top surface of the support ring (31) and the core (3), and the recess (34) is inclined downwards at a predetermined angle towards the inner side of the core (3).
4. The oil and gas seal mold according to claim 1, characterized in that a step (24) is arranged on one side of the convex part (23) facing the core (3), the step (24) has two steps and is gradually reduced from top to bottom, and the surface of the step (24) is arc-shaped.
5. The oil and gas seal mold according to claim 1, characterized in that the inner wall of the first land (12) is wavy.
6. -oil and gas seal mould according to claim 3, characterised in that the part of the core (3) above the recess (34) is bevelled.
7. The oil and gas seal mold according to claim 6, characterized in that a groove (13) is formed in the top inner edge of the first annular table (12), the bottom surface of the upper mold (2) protrudes downwards on both sides of the convex part (23) to form a second boss (25), wherein the bottom surface of the second boss (25) on the outer side abuts against the bottom of the groove (13), and the outer wall has a predetermined distance from the side wall of the groove (13).
8. The oil and gas seal mold according to claim 7, wherein the second boss (25) located at the inner side protrudes by a distance greater than the second boss (25) located at the outer side, and an inner wall of the second boss (25) located at the inner side is a slope, which is engaged with the slope of the core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221781057.6U CN217573769U (en) | 2022-07-12 | 2022-07-12 | Oil gas seal mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221781057.6U CN217573769U (en) | 2022-07-12 | 2022-07-12 | Oil gas seal mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217573769U true CN217573769U (en) | 2022-10-14 |
Family
ID=83535226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221781057.6U Active CN217573769U (en) | 2022-07-12 | 2022-07-12 | Oil gas seal mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217573769U (en) |
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2022
- 2022-07-12 CN CN202221781057.6U patent/CN217573769U/en active Active
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