Improved reinforced rubber sealing ring and forming equipment thereof

Abstract

The invention relates to the technical field of compression molding, in particular to an improved reinforced rubber sealing ring and forming equipment thereof.The improved reinforced rubber sealing ring comprises a support, a guide column and a lower die, the guide column and the lower die are arranged on the support, and a top plate is arranged at the end of the guide column; the ejector plate is installed in the lower mold in a sliding mode, the mold pressing groove is formed in the side, facing the ejector plate, of the ejector plate, and a bearing plate is arranged on the ejector plate; the mold closing mechanism is arranged on the top plate and comprises an upper mold, and the mold closing mechanism can drive the upper mold to slide in the axial direction of the guide column; the follow-up air pumping mechanism is arranged on the lower mold and connected with the ejection plate, and an ejection assembly connected with the ejection plate is arranged in the lower mold. When the ejection plate controls a formed product to be ejected out, positive pressure can be formed in the mold pressing groove through cooperation of the ejection assembly and the follow-up air pumping mechanism; therefore, the product can be smoothly separated from the ejector plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold forming, in particular to an improved reinforced rubber sealing ring and a forming equipment thereof. BACKGROUND

[0002] The rubber ring is an annular sealing element made of rubber material, mainly used to prevent liquid or gas leakage, and widely used in automobile, machinery, electronics, medical and other industries.

[0003] In the forming of the rubber ring, mold forming or extrusion forming is usually used. As for mold forming, it is one of the most commonly used methods for rubber products, and the core is to make the unvulcanized rubber flow and vulcanize in the mold cavity by heating and pressing.

[0004] Therefore, after mold forming, the upper mold and the lower mold need to be controlled after closing, and heating and pressure maintaining are performed. When the heating and pressure maintaining reaches a certain time, it means that the forming is completed, at which time the upper mold and the lower mold are separated, and the product can be taken out.

[0005] However, during mold forming, with the long-time use of the mold, whether the closing pressure deviates or the mold release agent in the mold fails, etc., will cause the adhesion between the rubber ring and the mold to increase, and then the product will be adhered to the surface of the mold when the product is ejected, causing the product to be difficult to take out. SUMMARY

[0006] The purpose of the present application is to provide an improved reinforced rubber sealing ring and a forming equipment thereof to solve the problems raised in the background.

[0007] To achieve the above purpose, the present application provides the following technical scheme: An improved reinforced rubber sealing ring, comprising, by weight: 50-60 parts of hydrogenated nitrile rubber; 20-25 parts of fluorine rubber; 3-5 parts of modified graphene reinforcing agent; 5-10 parts of nano mica sheet; 4-6 parts of composite vulcanization system; 2-4 parts of short aramid fiber; 2-3 parts of anti-aging agent.

[0008] A preparation method of an improved reinforced rubber sealing ring, comprising the following steps: Step one: plasticize the hydrogenated nitrile rubber and fluorine rubber in the internal mixer for 3-5 min at a temperature of 80-100 DEG C, and then add the modified graphene, nano mica and aramid fiber in sequence and mix for 8-10 min; Step 2: Add the vulcanizing agent, transfer the mixed rubber to the open mill, set the roller temperature at 40-60℃, add the composite vulcanization system and anti-aging agent, and pass it through the mill 5-8 times; Step 3: Preforming, using an extruder to make the rubber into a predetermined shape of rubber blank; Step 4: Molding and vulcanization: Place the rubber blank in the sealing ring molding equipment, close the mold of the molding equipment, and vulcanize it at 160-180℃ and 15-20MPa for 10-15min; Step 5: Post-processing, secondary vulcanization after demoulding, and trimming to obtain the finished product.

[0009] An improved molding device for a reinforced rubber sealing ring, comprising: A support, and a guide column and a lower mold arranged on the support, wherein the end of the guide column is provided with a top plate; Also includes: An ejector plate is slidably mounted in the lower mold, a molded groove is formed on the side of the ejector plate facing the top plate, and a receiving plate is provided on the ejector plate; A mold clamping mechanism is provided on the top plate and includes an upper mold, wherein the mold clamping mechanism can drive the upper mold to slide axially along the guide column; The follower air pumping mechanism is arranged on the lower mold and connected to the ejection plate. An ejection assembly connected to the ejection plate is arranged in the lower mold. The follower air pumping mechanism can perform an air pumping action into the molding groove when the ejection assembly drives the ejection plate to move.

[0010] As a further solution of the present invention: the mold clamping mechanism includes a hollow rod provided on the receiving plate, and a third spring is provided in the hollow rod; It also includes a lifting component and a separation and combination component which are arranged on the top plate and connected to the third spring and are used to control the movement of the upper mold.

[0011] As a further solution of the present invention: the lifting assembly includes a first cylinder arranged on the top plate, the telescopic end of the first cylinder is provided with a movable plate slidingly connected to the guide column, the movable plate is fixedly connected to the upper mold, and a groove is formed at the end of the upper mold.

[0012] As a further solution of the present invention: the separation and combination assembly includes a fixed rod arranged on the movable plate, a fixed ring is provided at the end of the fixed rod, the axial sliding of the fixed rod is provided with a support plate that cooperates with the groove, the support plate is in contact with the fixed ring, and a protrusion is provided on the support plate that is in contact with the third spring. A first spring is sleeved on the fixed rod, and the two ends of the first spring are respectively in contact with the support plate and the movable plate.

[0013] As a further solution of the present invention: the ejection assembly includes a sealing hole opened on the ejection plate, the lower mold is provided with a sealing column slidingly sealed with the sealing hole, and the support is provided with a second cylinder fixedly connected to the ejection plate.

[0014] As a further solution of the present invention: the follower pumping mechanism includes a pump cylinder arranged in the lower mold, a piston disc is slidingly and sealingly connected in the pump cylinder, and a pull rod is provided at the end of the piston disc, which passes through the pump cylinder and is fixedly connected to the docking plate; It also includes a buffer component and a conducting component arranged in the pump cylinder and used for pumping gas into the sealing hole.

[0015] As a further solution of the present invention: the buffer assembly includes a limiting ring arranged in the pump cylinder, the axial sliding of the pull rod is provided with a sealing disk that abuts against the limiting ring, and a second spring is sleeved on the pull rod, and the two ends of the second spring abut against the sealing disk and the inner wall of the pump cylinder respectively.

[0016] As a further solution of the present invention: the conducting component includes an air inlet pipe connected to the side wall of the pump cylinder and passing through the lower mold, an air flow channel connected to the sealing hole is formed on the ejection plate, and an air supply pipe passing through the pump cylinder and connected to the sealing hole is connected on the sealing disk.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the present application can control the separation of the product from the upper mold and the ejector plate respectively during product molding, mold separation and ejection, so as to ensure that the product will not adhere to the upper mold or the ejector plate during demolding. Specifically, after the mold closing is completed, a pressure holding treatment can be performed, and at the same time, the raw materials in the molding groove are heated. After the molding is completed, the mold closing mechanism controls the upper mold to move in the direction away from the lower mold, so that the upper mold is separated from the ejector plate. Under the action of the mold closing mechanism, a certain thrust can be provided to the product, so that the product is separated from the upper mold. At the same time, under the action of the ejection assembly, the ejector plate is controlled to move in the direction of separation from the lower mold. Under the action of the follow-up pump air mechanism, gas is pumped into the molding groove, so that positive pressure is formed in the molding groove, to ensure that when the ejector plate ejects the product, the product will not adhere to the molding groove due to negative pressure.

[0018] Through the cooperation of the first spring and the third spring, the support plate and the groove can be engaged with each other, making the molding surface of the upper mold flat to ensure the normal molding process. At the same time, the support plate and the groove can be controlled to separate during mold separation to provide thrust to the product when the product adheres to the molding surface of the upper mold, ensuring that the product can be smoothly removed after molding.

[0019] By controlling the conduction and blocking of the air flow channel, it can be ensured that the gas will not affect the molding of the product during molding. After molding is completed, the gas is transported through the air flow channel to form a positive pressure in the molding groove to ensure that the product will not be stuck and unable to be separated from the molding groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of an embodiment of an improved molding device for a reinforced rubber sealing ring.

[0021] Figure 2 This is a structural schematic diagram from another angle in an embodiment of the improved reinforced rubber sealing ring molding equipment.

[0022] Figure 3 This is a structural schematic diagram of part of the mold clamping mechanism in an embodiment of an improved molding equipment for reinforced rubber sealing rings.

[0023] Figure 4 This is a structural schematic diagram of part of the ejector assembly and ejector plate in one embodiment of an improved reinforced rubber sealing ring molding equipment.

[0024] Figure 5 The diagram is a schematic diagram of the exploded structure of part of the mold clamping mechanism in one embodiment of an improved molding equipment for reinforced rubber sealing ring.

[0025] Figure 6 The present invention is a schematic cross-sectional structure diagram of a lower mold, an ejector plate, and a pump cylinder in one embodiment of an improved molding device for a reinforced rubber sealing ring.

[0026] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A.

[0027] Figure 8 The diagram is a schematic diagram of the exploded structure of part of the mold clamping mechanism and the follower pumping mechanism in one embodiment of the improved molding equipment for reinforced rubber sealing ring.

[0028] Figure 9 This is a schematic diagram of the exploded structure of part of the ejector assembly, ejector plate, and lower mold in one embodiment of an improved molding equipment for reinforced rubber sealing rings.

[0029] In the figure: 1. support; 2. guide column; 3. top plate; 4. first cylinder; 5. movable plate; 6. upper mold; 601. groove; 7. fixing rod; 701. fixing ring; 8. support plate; 801. boss; 9. first spring; 10. lower mold; 11. sealing column; 12. ejector plate; 1201. molded groove; 1202. sealing hole; 1203. air flow channel; 13. receiving plate; 14. second cylinder; 15. pump cylinder; 1501. limiting ring; 16. piston disc; 17. pull rod; 18. sealing disc; 19. air supply pipe; 20. second spring; 21. hollow rod; 22. third spring; 23. air intake pipe. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] See also Figures 1 to 9 In an embodiment of the present invention, an improved reinforced rubber sealing ring comprises, by weight: 50-60 parts of hydrogenated nitrile rubber; 20-25 parts of fluororubber; 3-5 parts of modified graphene reinforcing agent; 5-10 parts of nano-mica flakes; 4-6 parts of composite vulcanization system; 2-4 parts of chopped aramid fiber; 2-3 parts of anti-aging agent.

[0033] A method for preparing an improved reinforced rubber sealing ring comprises the following steps: Step 1: Plasticize hydrogenated nitrile rubber and fluororubber in an internal mixer for 3-5 minutes at a temperature of 80-100°C, then add modified graphene, nano-mica, and aramid fiber in sequence and mix for 8-10 minutes; Step 2: Add the vulcanizing agent, transfer the mixed rubber to the open mill, set the roller temperature at 40-60℃, add the composite vulcanization system and anti-aging agent, and pass it through the mill 5-8 times; Step 3: Preforming, using an extruder to make the rubber into a predetermined shape of rubber blank; Step 4: Molding and vulcanization: Place the rubber blank in the sealing ring molding equipment, close the mold of the molding equipment, and vulcanize it at 160-180℃ and 15-20MPa for 10-15min; Step 5: Post-processing: demoulding and secondary vulcanization (200℃×4h), trimming to obtain the finished product.

[0034] An improved molding device for a reinforced rubber sealing ring, comprising: A support 1, and a guide column 2 and a lower mold 10 provided on the support 1, wherein a top plate 3 is provided at the end of the guide column 2; Also includes: An ejector plate 12 is slidably mounted in the lower mold 10 . A molded groove 1201 is formed on the side of the ejector plate 12 facing the top plate 3 . A receiving plate 13 is provided on the ejector plate 12 . A mold clamping mechanism is provided on the top plate 3 and includes an upper mold 6. The mold clamping mechanism can drive the upper mold 6 to slide axially along the guide column 2; The follower air pumping mechanism is arranged on the lower mold 10 and connected to the ejection plate 12. The lower mold 10 is provided with an ejection assembly connected to the ejection plate 12. The follower air pumping mechanism can perform an air pumping action into the molding groove 1201 when the ejection assembly drives the ejection plate 12 to move.

[0035] Specifically, after the raw materials are preformed, the raw materials required for molding are placed in the molding groove 1201. At this time, the mold clamping mechanism moves and drives the upper mold 6 to move toward the lower mold 10. When the upper mold 6 moves to abut against the ejection plate 12, it means that the upper mold 6 and the ejection plate 12 are molded. At this time, the pressure holding process can be carried out. At the same time, the raw materials in the molding groove 1201 are heated. When the molding is completed, the mold clamping mechanism controls the upper mold 6 to move in the direction away from the lower mold 10, so that the upper mold 6 is separated from the ejection plate 12. In order to ensure that the finished product after molding will not stick due to negative pressure or friction, It is connected to the upper mold 6 and can provide a certain thrust to the product under the action of the mold clamping mechanism, so that the product is separated from the upper mold 6. At the same time, under the action of the ejection assembly, the ejection plate 12 is controlled to move in the direction of separation from the lower mold 10. The ejection plate 12 will also drive the follow-up pumping mechanism to move through the receiving plate 13. Under the action of the follow-up pumping mechanism, gas is pumped into the molding groove 1201, so that positive pressure is formed in the molding groove 1201, to ensure that when the ejection plate 12 ejects the product, the product will not adhere to the molding groove 1201 due to negative pressure, thereby affecting the continued molding of subsequent products.

[0036] See also Figure 1-Figure 3 、 Figure 5 , the mold clamping mechanism includes a hollow rod 21 arranged on the receiving plate 13, and a third spring 22 is arranged in the hollow rod 21; it also includes a lifting assembly and a separation and combination assembly arranged on the top plate 3 and connected to the third spring 22 for controlling the movement of the upper mold 6, the lifting assembly includes a first cylinder 4 arranged on the top plate 3, the telescopic end of the first cylinder 4 is provided with a movable plate 5 slidably connected to the guide column 2, the movable plate 5 is fixedly connected to the upper mold 6, and a groove 601 is formed at the end of the upper mold 6, the separation and combination assembly includes a fixed rod 7 arranged on the movable plate 5, a fixed ring 701 is provided at the end of the fixed rod 7, the axial sliding of the fixed rod 7 is provided with a support plate 8 that cooperates with the groove 601, the support plate 8 is in contact with the fixing ring 701, and a convex column 801 is provided on the support plate 8 that cooperates with the third spring 22, and a first spring 9 is sleeved on the fixed rod 7, and the two ends of the first spring 9 are respectively in contact with the support plate 8 and the movable plate 5.

[0037] Specifically, the boss 801 is hollow and sleeved on the fixing ring 701. In the initial state, under the action of the first cylinder 4, the distance between the movable plate 5 and the lower die 10 is maximized, and the support plate 8 is located at the end of the stroke away from the movable plate 5, so that the distance between the support plate 8 and the movable plate 5 is maximized. Therefore, the support plate 8 and the groove 601 are in a separated state, and the elongation of the first spring 9 in the natural state is greater than the distance. Therefore, the first spring 9 is in a pre-compressed state and always provides a thrust to the support plate 8 in the direction away from the movable plate 5. At this time, the support plate 8 and the fixing ring 701 are in abutment, and the third spring 22 is not subjected to any force. Therefore, the third spring 22 is in a naturally extended state, and the rigidity of the third spring 22 is greater than that of the first spring 9. When mold closing and molding is required, the first cylinder 4 works and pushes the movable plate 5 to slide along the axial direction of the guide column 2, thereby driving the upper mold 6 to move. The movable plate 5 also drives the support plate 8 to move synchronously through the fixed rod 7, thereby driving the boss 801 to move. When the boss 801 enters the hollow rod 21 and abuts against the third spring 22, the upper mold 6 and the ejector plate 12 are in a separated state. At this time, the boss 801 continues to move and compresses the third spring 22. Since the rigidity of the third spring 22 is greater than that of the first spring 9, the compression amount of the third spring 22 is 0. When it is smaller, its elastic potential energy will be greater than the elastic potential energy of the first spring 9. Therefore, the position of the support plate 8 no longer changes, and the upper mold 6 continues to move until the groove 601 and the support plate 8 engage with each other. Under the action of the support plate 8, the upper mold 6 forms a whole. When the upper mold 6 continues to move, it drives the support plate 8 to move, thereby continuing to compress the third spring 22 through the boss 801. When the upper mold 6 and the support plate 8 are in contact with the ejection plate 12, under the action of the upper mold 6, the support plate 8 and the ejection plate 12, the raw material placed in the molding groove 1201 is molded.

[0038] After holding pressure and heating for a certain period of time, the product is formed. At this time, the first cylinder 4 controls the movable plate 5 to reset and drives the upper mold 6 to move in the direction away from the ejection plate 12, so that the upper mold 6 and the support plate 8 are separated from the ejection plate 12. Due to the possibility of forming a certain negative pressure between the product and the upper mold 6 during compression molding, and the product may adhere to the upper mold 6 during pressure holding, if the product adheres, when the boss 801 separates from the third spring 22, the first spring 9 is elastically released and pushes the support plate 8 to move in the direction away from the movable plate 5, so that the support plate 8 is separated from the groove 601, thereby providing a certain thrust to the product, so that the product is separated from the upper mold 6.

[0039] Preferably, through the cooperation of the first spring 9 and the third spring 22, the mutual engagement of the support plate 8 and the groove 601 can be achieved, so that the molding surface of the upper mold 6 is flat to ensure the normal progress of the molding, and the support plate 8 and the groove 601 can be controlled to separate when the mold is separated, so as to provide a thrust to the product when the product adheres to the molding surface of the upper mold 6, ensuring that the product can be smoothly taken out after molding.

[0040] See also Figure 2 、 Figure 4 、 Figure 6 The ejection assembly includes a sealing hole 1202 opened on the ejection plate 12, a sealing column 11 is provided on the lower mold 10 and is slidably and sealingly connected to the sealing hole 1202, and a second cylinder 14 is provided on the support 1 and is fixedly connected to the ejection plate 12.

[0041] See also Figure 1 、 Figure 2 、 Figure 4、 Figure 6-Figure 9 The follow-up pumping mechanism includes a pump cylinder 15 arranged in the lower mold 10, and a piston disk 16 is connected to the pump cylinder 15 in a sliding and sealing manner. The end of the piston disk 16 is provided with a pull rod 17 that passes through the pump cylinder 15 and is fixedly connected to the receiving plate 13; it also includes a buffer component and a conducting component arranged in the pump cylinder 15 for pumping gas to the sealing hole 1202, the buffer component includes a limit ring 1501 arranged in the pump cylinder 15, and the axial sliding of the pull rod 17 is connected to the limit ring The positioning ring 1501 abuts against the sealing disk 18, and a second spring 20 is sleeved on the pull rod 17. The two ends of the second spring 20 abut against the sealing disk 18 and the inner wall of the pump cylinder 15 respectively. The conducting component includes an air inlet pipe 23 connected to the side wall of the pump cylinder 15 and passing through the lower mold 10. An air flow channel 1203 connected to the sealing hole 1202 is formed on the ejection plate 12, and the sealing disk 18 is connected to an air supply pipe 19 that passes through the pump cylinder 15 and is connected to the sealing hole 1202.

[0042] Furthermore, in the initial state, under the action of the second cylinder 14, the ejector plate 12 is located at the end of the stroke in the lower mold 10 and abuts against the bottom of the cavity in the lower mold 10. At this time, the sealing column 11 passes through the sealing hole 1202 and is at the same horizontal plane as the mold groove 1201, so that the mold groove 1201 is in a flat state, and under the action of the sealing column 11, the air flow channel 1203 is blocked to ensure that the air flow channel 1203 is in a closed state. The ejector plate 12 will control the pull rod 17 through the receiving plate 13 to be located at the end of the stroke toward the pump cylinder 15, so that the distance between the piston disc 16 and the sealing disc 18 is the largest, and the sealing disc 18 is in abutment with the limit ring 1501. Therefore, the sealing disc 18 has a maximum distance from the inner wall of the pump cylinder 15 facing the receiving plate 13, and the elongation of the second spring 20 in the natural state is greater than this distance. Therefore, the second spring 20 is in a pre-compression state and always provides a thrust to the sealing disc 18 toward the direction close to the piston disc 16.

[0043] A one-way valve is provided in both the air supply pipe 19 and the air inlet pipe 23. Under the action of the one-way valve, the gas can only enter the pump cylinder 15 through the air inlet pipe 23 and then be discharged through the air supply pipe 19. In this regard, during the compression molding, since the sealing column 11 passes through the sealing hole 1202, the gas will not interfere with the compression molding of the product. When the compression molding is completed, the compression molding surface of the product and the compression molding groove 1201 may also be negatively pressurized. Therefore, the product may also adhere to the compression molding groove 1201. When the second cylinder 14 is working, the ejector plate 12 is controlled to move away from the lower mold 1 0, so that the size of the sealing column 11 inserted into the sealing hole 1202 gradually decreases. At the same time, the ejection plate 12 also drives the receiving plate 13 to move, thereby driving the pull rod 17 to move. Under the action of the pull rod 17, the piston disc 16 is controlled to move toward the direction close to the limit ring 1501, so that the pressure in the pump cylinder 15 increases. Since the air flow channel 1203 is still in a blocked state, the air pressure pushes the sealing disc 18 to move in the direction away from the limit ring 1501 and compresses the second spring 20, thereby achieving the effect of pre-energy storage. As the ejection plate 12 continues to move, the sealing column 11 no longer blocks the air flow channel 1203. In response, the second spring 20 is elastically released and drives the sealing disk 18 to move toward the limiting ring 1501, so that the gas in the pump cylinder 15 is transported to the air flow channel 1203 through the air supply pipe 19, and then blown into the molding groove 1201 through the sealing hole 1202. Under the action of the gas, a positive pressure is formed between the product and the molding groove 1201, so that the product no longer adheres to the molding groove 1201, and under the push of the gas, the product is controlled to detach from the molding groove 1201, thereby facilitating the subsequent removal of the product.

[0044] After the product is taken out, the second cylinder 14 controls the ejection plate 12 to move toward the initial position, so that the pull rod 17 is reset, thereby driving the piston plate 16 to move. Under the action of the piston plate 16, a negative pressure is formed in the pump cylinder 15, so that air is sucked into the pump cylinder 15 through the air inlet pipe 23. The above steps are repeated to ensure that the product can be ejected smoothly.

[0045] Preferably, by controlling the conduction and blocking of the air flow channel 1203, it can be ensured that the gas will not affect the molding of the product during molding. After the molding is completed, the gas is transported through the air flow channel 1203 to form a positive pressure in the molding groove 1201 to ensure that the product will not be stuck and unable to be separated from the molding groove 1201.

[0046] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0047] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An improved reinforced rubber sealing ring, characterized in that: In parts by weight: 50-60 parts of hydrogenated nitrile rubber; 20-25 parts of fluororubber; 3-5 parts of modified graphene reinforcing agent; 5-10 parts of nano-mica flakes; 4-6 parts of composite vulcanization system; 2-4 parts of chopped aramid fiber; 2-3 parts of anti-aging agent.

2. The method for preparing the improved reinforced rubber seal ring according to claim 1, characterized in that: The following steps are involved: Step 1: Plasticize hydrogenated nitrile rubber and fluororubber in an internal mixer for 3-5 minutes at a temperature of 80-100°C, then add modified graphene, nano-mica, and aramid fiber in sequence and mix for 8-10 minutes; Step 2: Add the vulcanizing agent, transfer the mixed rubber to the open mill, set the roller temperature at 40-60℃, add the composite vulcanization system and anti-aging agent, and pass it through the mill 5-8 times; Step 3: Preforming, using an extruder to make the rubber into a predetermined shape of rubber blank; Step 4: Molding and vulcanization: Place the rubber blank in the sealing ring molding equipment, close the mold of the molding equipment, and vulcanize it at 160-180℃ and 15-20MPa for 10-15min; Step 5: Post-processing, secondary vulcanization after demoulding, and trimming to obtain the finished product.

3. A molding device for the improved reinforced rubber seal ring according to claim 1, comprising: A support, and a guide column and a lower mold arranged on the support, wherein the end of the guide column is provided with a top plate; It is characterized by further comprising: An ejector plate is slidably mounted in the lower mold, a molded groove is formed on the side of the ejector plate facing the top plate, and a receiving plate is provided on the ejector plate; A mold clamping mechanism is provided on the top plate and includes an upper mold, wherein the mold clamping mechanism can drive the upper mold to slide axially along the guide column; The follower air pumping mechanism is arranged on the lower mold and connected to the ejection plate. An ejection assembly connected to the ejection plate is arranged in the lower mold. The follower air pumping mechanism can perform an air pumping action into the molding groove when the ejection assembly drives the ejection plate to move.

4. The improved reinforced rubber seal ring forming equipment according to claim 3 is characterized in that: The mold clamping mechanism includes a hollow rod provided on the receiving plate, wherein a third spring is provided in the hollow rod; It also includes a lifting component and a separation and combination component which are arranged on the top plate and connected to the third spring and are used to control the movement of the upper mold.

5. The improved reinforced rubber seal ring forming equipment according to claim 4, characterized in that: The lifting assembly includes a first cylinder arranged on the top plate, the telescopic end of the first cylinder is provided with a movable plate slidably connected to the guide column, the movable plate is fixedly connected to the upper mold, and a groove is formed at the end of the upper mold.

6. The improved reinforced rubber seal ring forming equipment according to claim 5, characterized in that: The separation and combination assembly includes a fixed rod arranged on the movable plate, a fixed ring is provided at the end of the fixed rod, an axial sliding support plate of the fixed rod cooperates with the groove, the support plate is in contact with the fixed ring, and a protrusion is provided on the support plate to cooperate with the third spring, a first spring is sleeved on the fixed rod, and two ends of the first spring are respectively in contact with the support plate and the movable plate.

7. The improved reinforced rubber seal ring forming equipment according to claim 3, characterized in that: The ejection assembly includes a sealing hole opened on the ejection plate, the lower mold is provided with a sealing column connected to the sealing hole in a sliding and sealing manner, and the support is provided with a second cylinder fixedly connected to the ejection plate.

8. The improved reinforced rubber seal ring forming equipment according to claim 7, characterized in that: The follower pumping mechanism includes a pump cylinder arranged in the lower mold, a piston disc is slidingly and sealingly connected in the pump cylinder, and a pull rod is provided at the end of the piston disc, which passes through the pump cylinder and is fixedly connected to the receiving plate; It also includes a buffer component and a conducting component arranged in the pump cylinder and used for pumping gas into the sealing hole.

9. The improved reinforced rubber seal ring forming device according to claim 8, characterized in that: The buffer assembly includes a limiting ring arranged in the pump cylinder, the axial sliding of the pull rod is provided with a sealing disk that abuts against the limiting ring, and a second spring is sleeved on the pull rod, and the two ends of the second spring abut against the sealing disk and the inner wall of the pump cylinder respectively.

10. The improved reinforced rubber seal ring forming equipment according to claim 9, characterized in that: The conducting assembly includes an air inlet pipe connected to the side wall of the pump cylinder and passing through the lower mold, an air flow channel connected to the sealing hole is formed on the ejection plate, and an air supply pipe passing through the pump cylinder and connected to the sealing hole is connected on the sealing disk.

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