A sealing ring processing device and a surface treatment method thereof

Abstract

The application relates to the technical field of sealing ring processing, and discloses a sealing ring processing equipment and a surface treatment method thereof. The process is characterized in that the at least one contact and friction surface of a sealing ring and a lower die is subjected to laser treatment, so that a uniform micro concave-convex structure is formed on the surface. The 3D laser equipment is used to perform laser treatment on the lip position of the lower die or the metal framework surface of the sealing ring, so that a specified roughness is obtained. In the process of hot-pressing vulcanization forming of the sealing ring, the roughness of the lower die or the metal framework surface is reflected to the lip surface of the sealing ring, so that a uniform micro concave-convex structure is formed, thereby reducing the contact area and friction torque of the sealing ring during operation. The roughness of the lip surface of the lower die is Ra 1.5-2.5 mu m, and the roughness of the metal framework surface is Ra 0.7-1.2 mu m. The processing equipment comprises a machine base, a supporting frame, a hydraulic rod, a hot-pressing plate, a hot-pressing seat, an upper die, a lower die, and an injection mechanism, a rotary spraying mechanism and a wiping mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealing ring processing, in particular to a sealing ring processing equipment and a surface treatment method thereof. BACKGROUND

[0002] The processing of sealing rings is usually carried out by setting rubber in a lower mold and using hot press vulcanization molding by matching the lower mold with an upper mold. In the molding process, in order to prevent the rubber from adhering to the mold, ensure smooth demolding of the product and improve the service life of the mold, it is usually necessary to spray a release agent on the surface of the mold. However, the existing sealing ring processing equipment still has deficiencies.

[0003] The traditional spraying method may require additional independent spraying devices or manual operation, increasing the manufacturing and maintenance costs of the equipment. In the mold matching process, if the release agent cannot be sprayed in time and uniformly, it may cause defects in the product, such as a rough surface, difficult demolding or even damage to the mold, thereby affecting the production efficiency and product quality. SUMMARY

[0004] The present application provides a sealing ring processing equipment that automatically sprays a release agent while simplifying the equipment structure and reducing production costs.

[0005] To solve the above technical problems, the technical solution of the present application is as follows:

[0006] In a first aspect, a surface treatment method for a sealing ring includes:

[0007] Laser treatment is performed on at least one contact and friction surface of the sealing ring and the lower mold to form a uniform micro concave-convex structure on the surface;

[0008] The laser treatment is performed on the lip position provided on the lower mold or the metal framework surface of the sealing ring using a 3D laser equipment to emit laser fibers, so as to form a roughness on the lip surface of the lower mold or the metal framework surface.

[0009] During the hot press vulcanization molding of the sealing ring using the lower mold, the roughness is reflected on the surface of the corresponding lip position of the sealing ring, so as to form a uniform micro concave-convex surface on the lip of the sealing ring.

[0010] Further, the laser treatment parameters of the lip surface provided on the lower mold are Ra1.5-2.5 μm, and the laser treatment parameters of the metal framework surface are Ra0.7-1.2 μm.

[0011] The 3D laser equipment bottom tool is used for fixing the lower mold or metal framework, and through 3D rotation, the lip surface arranged on the lower mold or the metal framework surface is corroded by laser light, so that the lip arranged on the lower mold or the metal framework surface circumference obtains uniform roughness.

[0012] In the second aspect, a sealing ring processing equipment includes a base and a support frame fixed on the base. A hydraulic rod is fixed through the support frame. The telescopic end of the hydraulic rod is fixed with a hot pressing plate. The base is fixed with a hot pressing seat below the hot pressing plate. The hot pressing seat is symmetrically provided with a lower mold. The lower end of the hot pressing plate is symmetrically fixed with an upper mold corresponding to the position of the lower mold. The hot pressing seat is symmetrically fixed with a guide rod. The hot pressing plate is sleeved outside the guide rod. The lower mold is provided with a lip. The hot pressing seat is symmetrically fixed with an electric heating ring corresponding to the position of the lower mold. The equipment further includes:

[0013] An injection mechanism is arranged through the hot pressing plate, the guide rod and the support frame. The injection mechanism includes a storage and injection assembly composed of a corrugated bag telescoped in the guide rod and a storage cylinder fixed symmetrically outside the support frame. The injection mechanism further includes a pressure restoring assembly composed of a spring arranged inside the hot pressing plate and a pressure block connected with the upper end of the corrugated bag through the guide rod. The spring is symmetrically arranged on both sides of each guide rod to deliver the release agent by the clamping driving force.

[0014] A rotary spraying mechanism is rotationally connected with the hot pressing seat and connected with the injection mechanism and the lower mold. The rotary spraying mechanism includes a rotary and pulling assembly composed of a heat conducting column fixed at the lower end of the lower mold, a glass fiber elastic rope wound on the heat conducting column, and a pulling rope movably arranged through the spring, the hot pressing plate and the hot pressing seat. The rotary spraying mechanism further includes a spraying assembly composed of an inclined plate elastically connected with the guide rod and two spray heads connected with the lower end of the corrugated bag through the guide rod. The spraying assembly sprays the release agent to the upper mold and the lower mold by rotating the lower mold at the initial stage of clamping and cooperating with the injection mechanism.

[0015] A wiping mechanism is threadedly arranged outside the rotary spraying mechanism. The wiping mechanism includes an adjusting assembly threadedly connected with the spraying assembly and a guide wiping assembly rotationally connected with the adjusting assembly. The guide wiping assembly is guidedly connected with the spray head to clean the adhering objects on the lower mold during the opening process.

[0016] Further, the storage and injection assembly includes:

[0017] An inner channel is arranged through the guide rod and located at the upper third of the guide rod.

[0018] The corrugated bag is located inside the inner channel and fixed at the lower end of the guide rod.

[0019] A storage part is arranged outside the support frame and connected with the corrugated bag.

[0020] Further, the storage part comprises:

[0021] The first one-way valve is arranged through the lower end of the corrugated bag and inlaid in the guide rod;

[0022] The injection pipe is arranged through the guide rod and the support frame, and one end of the injection pipe is connected with the first one-way valve, and the other end of the injection pipe is connected with the storage cylinder;

[0023] The float ball valve is arranged through the upper end of the storage cylinder.

[0024] Further, the pressing assembly comprises:

[0025] The through groove is symmetrically arranged through the heat pressing plate and located outside the guide rod;

[0026] The spring is located inside the through groove and fixedly connected with the inner wall of the heat pressing plate at the lower end;

[0027] The connecting plate is symmetrically fixed at the upper end of the corrugated bag and welded with the pressing block.

[0028] Further, the rotating and pulling assembly comprises:

[0029] The movable groove is arranged through the upper end of the heat pressing seat and located below the lower die;

[0030] The heat conducting column is located inside the movable groove and inside the electric heating ring and rotationally connected with the heat pressing seat through the bearing;

[0031] The winding cylinder is integrally formed at the lower end of the heat conducting column;

[0032] The glass fiber elastic rope is located outside the winding cylinder, one end of the glass fiber elastic rope is fixedly connected with the winding cylinder, and the other end of the glass fiber elastic rope is fixedly connected with the inner wall of the movable groove;

[0033] The winding drum is fixedly connected with the lower end of the winding cylinder and the lower end of the pulling rope.

[0034] Further, the spraying assembly comprises:

[0035] The second one-way valve is arranged through the lower end of the corrugated bag and inlaid in the guide rod, and located on one side of the first one-way valve;

[0036] The L-shaped pipe is arranged through the guide rod, one end of the L-shaped pipe is connected with the output end of one of the second one-way valves, and the other end of the L-shaped pipe is directed to the lower die;

[0037] The hose is arranged through the guide rod, one end of the hose is connected with the output end of the other second one-way valve, and the other end of the hose is extended above the lower die;

[0038] One of the spray heads is connected with the other end of the hose, the other of the spray heads is connected with the other end of the L-shaped pipe, the output end of one of the spray heads is directed to the upper die, and the output end of the other of the spray heads is directed to the lower die.

[0039] The supporting and retracting part is arranged on the guide rod and connected with the hose.

[0040] Further, the supporting and retracting part comprises:

[0041] The receiving groove is arranged on the side of the guide rod close to the lower die and below the inner channel;

[0042] The other end of the L-shaped pipe is below the receiving groove, and the other end of the hose is arranged through the receiving groove;

[0043] The inclined plate is arranged through the receiving groove and has one end inside the receiving groove and is rotationally connected with the guide rod;

[0044] The torsion spring has one end fixedly connected with the guide rod and the other end fixedly connected with the inclined plate;

[0045] The pull rope is staggered with the L-shaped pipe and the hose and movably arranged through the inclined plate;

[0046] The connecting rod has one end welded with the inclined plate and the other end welded with the outside of one of the spray heads.

[0047] Further, the adjusting assembly comprises:

[0048] The threaded groove is arranged on the outside of the lower end of the L-shaped pipe;

[0049] The supporting sleeve is sleeved on the outside of the L-shaped pipe;

[0050] The threaded ring is sleeved on the outside of the L-shaped pipe, is threadedly connected with the threaded groove, and is rotationally connected with one end of the supporting sleeve through the bearing;

[0051] The guiding assembly comprises:

[0052] The annular brush is sleeved on the outside of the L-shaped pipe and the other spray head, and one end away from the spray head is fixedly connected with the supporting sleeve;

[0053] The guide groove is arranged on the inner top wall of the annular brush;

[0054] The guide block is welded on the outside of the other spray head and extends into the guide groove.

[0055] The above scheme of the present application at least has the following beneficial effects:

[0056] Through the cooperation of the injection mechanism and the rotary spraying mechanism, the mold closing driving force of the hydraulic rod is converted into the power source for the release agent conveying and the mold rotating, the mold closing driving force is used to drive the conveying and spraying of the release agent, the need for additional driving equipment is reduced, the production cost is reduced, at the same time, the mold surface is uniformly and timely sprayed with the release agent at the initial stage of mold closing, thereby improving the production efficiency and effect. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 The cross-sectional view of the combination of the metal skeleton and the sealing ring provided by the embodiment of the present application;

[0058] Figure 2 The cross-sectional view of the combination of the metal skeleton and the sealing ring provided by the embodiment of the present application;

[0059] Figure 3 The schematic diagram of the laser treatment of the lower mold provided by the embodiment of the present application;

[0060] Figure 4 The schematic diagram of the laser treatment of the metal skeleton provided by the embodiment of the present application;

[0061] Figure 5 The overall perspective view of the sealing ring processing equipment provided by the embodiment of the present application;

[0062] Figure 6 The perspective view of the combination of the hot-pressing seat, the guide rod and the lower mold provided by the embodiment of the present application;

[0063] Figure 7 The cross-sectional plan view of the combination of the hot-pressing plate, the hot-pressing seat, the guide rod and the storage cylinder provided by the embodiment of the present application;

[0064] Figure 8 The perspective view of the combination of the hot-pressing plate, the guide rod and the hydraulic rod provided by the embodiment of the present application;

[0065] Figure 9 The perspective view of the combination of the guide rod, the winding drum, the spring, the L-shaped pipe and the hose provided by the embodiment of the present application;

[0066] Figure 10 The exploded perspective view of the combination of the L-shaped pipe, the threaded ring, the support sleeve and the annular brush provided by the embodiment of the present application;

[0067] Figure 11 The cross-sectional plan view of the combination of the L-shaped pipe, the threaded ring, the support sleeve and the annular brush provided by the embodiment of the present application;

[0068] Figure 12 The structure schematic diagram of A in the Figure 7 provided by the embodiment of the present application;

[0069] Figure 13 The structure schematic diagram of B in the Figure 7 provided by the embodiment of the present application;

[0070] Figure 14 The structure schematic diagram of C in the Figure 9 provided by the embodiment of the present application.

[0071] Explanation of reference signs:

[0072] In the diagram: 1. Base; 2. Support frame; 3. Hydraulic rod; 4. Hot press plate; 5. Hot press seat; 6. Guide rod; 7. Lower mold; 8. Upper mold; 9. Through groove; 10. Inner channel; 11. Bellows; 12. First check valve; 13. Injection pipe; 14. Storage cylinder; 15. Float valve; 16. Second check valve; 17. L-tube; 18. Flexible hose; 19. Connecting plate; 20. Pressure block; 21. Spring; 22. Storage groove; 23. Rotating rod; 24. Torsion spring; 25. Inclined plate; 26. Connecting rod; 27. Movable groove; 28. Heat-conducting column; 29. ​​Heating ring; 30. Winding drum; 31. Rewinding drum; 32. Pull rope; 33. Fiberglass elastic rope; 34. Threaded groove; 35. Support sleeve; 36. Threaded ring; 37. Annular brush; 38. Nozzle; 39. Guide groove; 40. Guide block; 1a. Skeleton; 1b. Rubber; 1c. Labyrinth lip; 1d. Mud and water lip; 1e. Grease lip; 1f. Static sealing protrusion; 1h. Low-friction treatment of lip; 2a. Metal skeleton; 2b. Rubber; 2c. Static sealing protrusion; 2d. Low-friction treatment of metal skeleton surface. Detailed Implementation

[0073] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0074] like Figures 1 to 14 As shown, an embodiment of the present invention provides a sealing ring processing device, including a base 1 and a support frame 2 fixed on the base 1. A hydraulic rod 3 is fixedly fixed through the support frame 2. A hot press plate 4 is fixedly connected to the telescopic end of the hydraulic rod 3. A hot press seat 5 is fixed on the base 1 and is located below the hot press plate 4. A lower mold 7 is symmetrically arranged on the hot press seat 5. An upper mold 8 is symmetrically fixed at the lower end of the hot press plate 4, and the positions of the upper mold 8 and the lower mold 7 correspond. Guide rods 6 are symmetrically fixed on the hot press seat 5. The hot press plate 4 is sleeved on the outside of the guide rods 6. The lower mold 7 is provided with a lip. Heating rings 29 are symmetrically fixed inside the hot press seat 5 and are corresponding to the positions of the lower mold 7. The device also includes:

[0075] The injection mechanism is configured through the hot press plate 4, guide rod 6 and support frame 2. It includes an injection assembly consisting of a bellows 11 telescopically disposed inside the guide rod 6 and a storage cylinder 14 symmetrically fixed outside the support frame 2. It also includes a pressing assembly consisting of a spring 21 disposed inside the hot press plate 4 and a pressing block 20 connected to the upper end of the bellows 11 through the guide rod 6. The spring 21 is symmetrically disposed on both sides of each guide rod 6 to deliver the release agent using the mold closing driving force.

[0076] The rotating and spraying mechanism is rotatably connected with the hot pressing seat 5, and is connected with the agent injecting mechanism and the lower mold 7, and comprises a rotating and pulling assembly which is composed of a heat conducting column 28 fixed at the lower end of the lower mold 7, a glass fiber elastic rope 33 wound on the heat conducting column 28, and a pulling rope 32 which is arranged through the movable penetrating spring 21, the hot pressing plate 4 and the hot pressing seat 5, and further comprises a spraying assembly which is composed of a slope plate 25 elastically connected with the guide rod 6 and two spraying heads 38 which are arranged through the guide rod 6 and connected with the lower end of the corrugated bag 11, so that the lower mold 7 is rotated at the initial stage of the mold closing and cooperates with the agent injecting mechanism to spray the release agent on the upper mold 8 and the lower mold 7.

[0077] The wiping mechanism is screwedly arranged outside the rotating and spraying mechanism, and comprises an adjusting assembly which is screwedly connected with the spraying assembly, and a guiding and wiping assembly which is rotatably connected with the adjusting assembly and is guidedly connected with the spraying head 38, so as to wipe the adhering matters on the lower mold 7 during the mold opening process.

[0078] Specifically, the base 1 can provide mounting space and support for the supporting frame 2 and the electrical elements, the supporting frame 2 can stably support the hydraulic rod 3 and the storage cylinder 14, the hydraulic rod 3 can provide support for the hot pressing plate 4, the base 1 can provide support for the hot pressing seat 5, the hot pressing seat 5 can provide support for the guide rod 6, the guide rod 6 can provide lifting and guiding action for the hot pressing plate 4, the hot pressing seat 5 can provide stable support for the lower mold 7, and the hot pressing plate 4 can stably support the upper mold 8, the upper mold 8 and the lower mold 7 can cooperate to extrude the sealing ring rubber material when the mold is closed, the hot pressing plate 4 and the electric heating ring 29 can generate heat after being powered on, so that the electric heating ring 29 can heat the hot pressing seat 5 and the lower mold 7, and the hot pressing plate 4 can heat the upper mold 8.

[0079] In actual application, the sealing ring rubber material can be sleeved on the outside of the lower mold 7 according to actual needs, and then the hydraulic rod 3 is controlled to be elongated, so that the hydraulic rod 3 can push the hot pressing plate 4 to move downward along the guide rod 6, the hot pressing plate 4 can drive the upper mold 8 to move downward, and the upper mold 8 can cooperate with the lower mold 7, at the same time, the electric heating ring 29 and the hot pressing plate 4 need to be powered on, so that the sealing ring rubber material can be vulcanized and formed by cooperating with extrusion after the mold is closed.

[0080] As a preferred embodiment of the present application, the storage and injection assembly comprises:

[0081] The inner channel 10 is arranged through the guide rod 6 and is located at the upper third of the guide rod 6;

[0082] The corrugated bag 11 is located inside the inner channel 10 and is fixedly connected with the lower end of the guide rod 6;

[0083] The storage part is arranged outside the supporting frame 2 and is connected with the corrugated bag 11.

[0084] Specifically, the hot presser plate 4 can provide space for the through slot 9, the guide rod 6 can provide space for the inner channel 10, the inner channel 10 can provide storage and activity space for the corrugated bag 11, the corrugated bag 11 can be folded and contracted under the extrusion of external force, and can be stretched and lengthened under the action of external force, and at the same time, the corrugated bag 11 can cooperate with the first one-way valve 12 and the second one-way valve 16 to temporarily store the release agent, and the storage cylinder 14 can provide storage space for the release agent.

[0085] The storage part comprises:

[0086] The first one-way valve 12 is arranged through the lower end of the corrugated bag 11 and inlaid in the inside of the guide rod 6.

[0087] The injection pipe 13 is arranged through the guide rod 6 and the support frame 2, and one end is connected with the first one-way valve 12 and the other end is connected with the storage cylinder 14.

[0088] The float ball valve 15 is arranged through the upper end of the storage cylinder 14.

[0089] Specifically, the storage cylinder 14 can provide stable support for the float ball valve 15, the staff can connect the pipeline conveying the release agent with the upper end of the float ball valve 15, so that the release agent can enter the float ball valve 15, the float ball valve 15 can open the channel when the liquid level of the release agent in the storage cylinder 14 is at the middle position, so that the release agent in the pipeline conveying the release agent can pass through the float ball valve 15 and be injected into the storage cylinder 14 for storage, the injection pipe 13 can provide a discharge channel and a guide effect for the release agent in the storage cylinder 14, and the release agent can fill the injection pipe 13 under the action of gravity, the first one-way valve 12 and the second one-way valve 16 are valve type, and the first one-way valve 12 can only provide a channel for the release agent in the injection pipe 13 to enter the corrugated bag 11.

[0090] The compression assembly comprises:

[0091] The through slot 9 is symmetrically arranged through the hot presser plate 4 and located outside the guide rod 6.

[0092] The spring 21 is located inside the through slot 9 and fixedly connected with the inner wall of the hot presser plate 4 at the lower end.

[0093] The connecting plate 19 is symmetrically fixed at the upper end of the corrugated bag 11 on both sides and welded with the pressing block 20.

[0094] Specifically, the through slot 9 can provide a through channel for the guide rod 6 and a moving space for the spring 21, so that the heat pressing plate 4 can support the lower end of the spring 21, the spring 21 can support the pressing block 20 through the connecting plate 19 under the support of the heat pressing plate 4, and the elastic force of the spring 21 is greater than the resistance of the release agent in the corrugated bag 11 to the ejection of the nozzle 38, so that the heat pressing plate 4 can extrude and shrink the corrugated bag 11 downward through the spring 21, the connecting plate 19 and the pressing block 20 when moving downward, and the corrugated bag 11 can provide resistance to the upper end of the spring 21 through the connecting plate 19 and the pressing block 20 after being folded and extruded, so that the heat pressing plate 4 can stretch the spring 21 when continuing to move downward.

[0095] In actual application, the staff needs to connect the pipeline conveying the release agent with the ball valve 15 before using the sealing ring processing equipment, so that the storage cylinder 14 can receive and store the release agent, then control the hydraulic rod 3 to elongate, so that the heat pressing plate 4 can move downward along the guide rod 6 by one third of the length of the guide rod 6, then reset, so that the corrugated bag 11 can be extruded and folded and then stretched and elongated, and the corrugated bag 11 can generate suction through the first one-way valve 12 during resetting, so that the release agent in the injection pipe 13 can be sucked into the corrugated bag 11 for temporary storage.

[0096] Before the staff places the sealing ring rubber into the outside of the lower mold 7, the hydraulic rod 3 needs to be controlled to elongate again, so that the heat pressing plate 4 can move downward along the guide rod 6 by one third of the length of the guide rod 6, so that the heat pressing plate 4 can pull the pressing block 20 downward through the spring 21, so that the pressing block 20 can extrude the upper end of the corrugated bag 11 downward through the connecting plate 19, so that the corrugated bag 11 can continuously discharge the release agent temporarily stored in the inside thereof into the hose 18 and the L-shaped pipe 17 through the second one-way valve 16 during the heat pressing plate 4 moving downward along the guide rod 6 by one third of the length of the guide rod 6, and then inject the release agent into the nozzle 38 through the hose 18 and the L-shaped pipe 17, so that the sealing ring processing equipment can use the clamping driving force to convey and spray the release agent, thereby reducing the use of the driving equipment and reducing the production cost of the sealing ring processing equipment.

[0097] As a preferred embodiment of the present application, the rotary pulling assembly comprises:

[0098] The movable slot 27 is arranged through the upper end of the heat pressing base 5 and below the lower mold 7.

[0099] The heat conducting column 28 is arranged in the movable slot 27 and inside the electric heating ring 29 and is rotationally connected with the heat pressing base 5 through a bearing.

[0100] The winding cylinder 30 is integrally formed at the lower end of the heat conducting column 28.

[0101] Glass fiber elastic rope 33 is located outside the winding drum 30, one end is fixed with the winding drum 30, the other end is fixed with the inner wall of the movable groove 27

[0102] Winding drum 31 is fixed at the lower end of the winding drum 30, and is fixed with the lower end of the pull rope 32.

[0103] Specifically, the hot pressing seat 5 can provide a space for the movable groove 27, the movable groove 27 can provide a rotating space for the heat conducting column 28, the winding drum 30 and the winding drum 31, and can provide a moving space for the glass fiber elastic rope 33, and the hot pressing seat 5 can provide rotating support for the heat conducting column 28 through the bearing, and the heat conducting column 28 can provide support for the lower mold 7, the glass fiber elastic rope 33 has elasticity and high temperature resistance, the electric heating ring 29 can heat the heat conducting column 28 by heat radiation, the heat conducting column 28 can conduct heat to the lower mold 7, the winding drum 30 can provide a winding position for the glass fiber elastic rope 33, and the winding drum 31 can wind the pull rope 32 by external force, the pull rope 32 can pull and position the winding drum 31 under the support of the spring 21 and the pressing block 20, so that the winding drum 30 can be kept in the state of stretching and winding the glass fiber elastic rope 33 before the hydraulic rod 3 is elongated.

[0104] The spraying assembly comprises:

[0105] The second one-way valve 16 is provided with two, which are arranged through the lower end of the corrugated bag 11 and embedded in the inside of the guide rod 6; and located on one side of the first one-way valve 12;

[0106] The L-shaped pipe 17 is arranged through the guide rod 6, one end of which is connected with the output end of one of the second one-way valves 16, and the other end thereof faces the lower mold 7;

[0107] The hose 18 is arranged through the guide rod 6, one end of which is connected with the output end of the other second one-way valve 16, and the other end thereof extends above the lower mold 7;

[0108] One of the spray heads 38 is connected with the other end of the hose 18, and the other spray head 38 is connected with the other end of the L-shaped pipe 17, the output end of one of the spray heads 38 faces the upper mold 8, and the output end of the other spray head 38 faces the lower mold 7;

[0109] The supporting and collecting part is rotatably arranged on the guide rod 6 and connected with the hose 18.

[0110] Specifically, the second one-way valve 16 can provide support for the L-shaped pipe 17 and the hose 18, and the second one-way valve 16 can only provide a channel for the release agent in the corrugated bag 11 to be discharged into the L-shaped pipe 17 and the hose 18, the L-shaped pipe 17 and the hose 18 can provide a channel for the release agent to enter the spray head 38, and the spray head 38 can atomize and spray the release agent by pressure.

[0111] The supporting and collecting part comprises:

[0112] The receiving groove 22 is arranged on the side of the guide rod 6 close to the lower die 7 and below the inner channel 10;

[0113] The other end of the L-shaped pipe 17 is below the receiving groove 22, and the other end of the hose 18 is arranged through the receiving groove 22;

[0114] The inclined plate 25 is arranged through the receiving groove 22 and has one end inside the receiving groove 22 and is rotationally connected with the guide rod 6;

[0115] The torsion spring 24 has one end fixedly connected with the guide rod 6 and the other end fixedly connected with the inclined plate 25;

[0116] The pull rope 32 is staggered with the L-shaped pipe 17 and the hose 18 and is movably arranged through the inclined plate 25;

[0117] The connecting rod 26 has one end welded with the inclined plate 25 and the other end welded with the outer side of one of the spray heads 38.

[0118] Specifically, the receiving groove 22 is provided with the rotating rod 23, one end of the rotating rod 23 is fixedly connected with the inclined plate 25, the other end is fixedly connected with the guide rod 6, the torsion spring 24 is outside the rotating rod 23, the rotating rod 23 can provide support for the torsion spring 24 under the support of the guide rod 6, the torsion spring 24 can be pushed and deformed by the inclined plate 25 under the action of external force, thereby storing energy, and after the external force disappears, it will rebound and push the inclined plate 25 and the components connected with the inclined plate 25 to move and reset under the support of the guide rod 6, the inclined plate 25 can provide a through channel for the pull rope 32, and the inclined plate 25 can cooperate with the torsion spring 24 and the guide rod 6 to provide support for the spray head 38 and the hose 18 through the connecting rod 26, the hot pressing seat 5 can provide a through channel and moving guide and resistance for the pull rope 32, so that the pull rope 32 can change the moving direction.

[0119] In the actual application process of the embodiment, during the extension of the upper one-third length of the guide rod 6 by the hydraulic rod 3, the hot pressing plate 4 and the spring 21 drive the pressing block 20 to move to the upper one-third of the guide rod 6, during this process, the pressing block 20 gradually drives the upper end of the pull rope 32 to move downward, so that the pull rope 32 is gradually loosened, at the same time, the glass fiber elastic rope 33 uses the rebound force to pull the winding drum 30 to rotate under the support of the hot pressing seat 5, so that the winding drum 31, the heat conducting column 28 and the lower die 7 rotate together under the support of the bearing, so that the winding drum 31 can wind the pull rope 32, at the same time, the spray head 38 continuously sprays the release agent, so that the release agent can be uniformly sprayed on the surface of the lower die 7 in cooperation with the rotation of the lower die 7, at the same time, the spray head 38 connected with the hose 18 is supported by the torsion spring 24, the inclined plate 25 and the connecting rod 26, and cooperates with the downward movement of the hot pressing plate 4, so that the release agent is sprayed into the upper die 8, thereby the sealing ring processing equipment can conveniently spray the release agent on the upper die 8 and the lower die 7 during the driving of the mold closing process, thereby improving the work efficiency and effect.

[0120] When the hydraulic rod 3 extends the one-third length of the guide rod 6, the spraying of the release agent stops, and then the operator can place the sealing ring rubber on the lower mold 7, and then control the hydraulic rod 3 to continue to extend, so that the hydraulic rod 3 can drive the upper mold 8 to move down to the lower mold 7 until the two molds are closed. In this process, the lower end of the spring 21 is driven downward by the hot pressing plate 4, so that the spring 21 is stretched and elongated. At the same time, the hot pressing plate 4 moves downward and contacts the inclined plate 25 and the connecting rod 26, and drives the inclined plate 25 and the connecting rod 26 to rotate in the receiving groove 22 with the pivot 23 as the center, and in this process, the inclined plate 25 drives the torsional spring 24 to twist and store energy. At the same time, the inclined plate 25 and the connecting rod 26 deform and move into the receiving groove 22 through the nozzle 38 and the hose 18, so that the hot pressing plate 4 can provide resistance to the inclined plate 25 and the connecting rod 26, so that the hot pressing plate 4 can push the hose 18, the nozzle 38 connected with the hose 18, the inclined plate 25 and the connecting rod 26 into the receiving groove 22 during the downward movement for closing the mold;

[0121] When the hydraulic rod 3 is retracted to drive the hot pressing plate 4 to rise and reset, the hot pressing plate 4 gradually separates from the connecting rod 26 and the inclined plate 25, thereby releasing the resistance to the connecting rod 26 and the inclined plate 25, so that the torsional spring 24 can use the rebound force to push the inclined plate 25 to rotate the connecting rod 26, the hose 18 and the nozzle 38 connected with the hose 18 out of the receiving groove 22 with the pivot 23 as the center, and at the same time, the spring 21 is retracted and reset with the hot pressing plate 4, and after retraction and reset, the hot pressing plate 4 moves upward together with the spring 21, and drives the pressing block 20 and the connecting plate 19 to move upward and reset together, and at the same time, the pressing block 20 pulls the pull rope 32 upward under the action of the upward external force, so that the wound pull rope 32 can drive the winding drum 31 to rotate, and then the winding drum 31 drives the winding cylinder 30, the heat-conducting column 28 and the lower mold 7 to rotate together, so that the winding cylinder 30 can stretch and wind the glass fiber elastic rope 33.

[0122] As a preferred embodiment of the present application, the adjusting assembly comprises:

[0123] The threaded groove 34 is arranged on the outside of the lower end of the L-shaped pipe 17.

[0124] The supporting sleeve 35 is sleeved on the outside of the L-shaped pipe 17.

[0125] The threaded ring 36 is sleeved on the outside of the L-shaped pipe 17, and is in threaded connection with the threaded groove 34, and is in rotary connection with one end of the supporting sleeve 35 through a bearing.

[0126] Specifically, the L-shaped pipe 17 can provide a space for the screw groove 34 and a moving guide for the support sleeve 35 and the screw ring 36, the screw ring 36 can push the support sleeve 35 to translate along the L-shaped pipe 17 by screwing with the screw groove 34, and the support sleeve 35 can provide a rotating support for the screw ring 36.

[0127] The guide assembly comprises:

[0128] The annular brush 37 is sleeved outside the L-shaped pipe 17 and the other nozzle 38 and is fixed to the support sleeve 35 at an end away from the nozzle 38.

[0129] The guide groove 39 is formed in the inner top wall of the annular brush 37.

[0130] The guide block 40 is welded outside the other nozzle 38 and extends into the guide groove 39.

[0131] Specifically, the support sleeve 35 can stably support the annular brush 37, the annular brush 37 has elasticity and can be deformed under the action of an external force to avoid scratching the lower mold 7, the annular brush 37 can provide a space for the guide groove 39, the nozzle 38 can stably support the guide block 40, the guide block 40 can cooperate with the guide groove 39 to provide a moving guide for the annular brush 37, and the annular brush 37 and the support sleeve 35 can be translated along the L-shaped pipe 17 while being prevented from rotating.

[0132] In actual application, the staff can make the upper end of the hot pressing plate 4 move to the upper one-third of the guide rod 6 and stop the operation of the electric heating ring 29 when the hydraulic rod 3 is controlled to shrink upward, so that the sealing ring formed on the lower mold 7 is cooled and placed, and then the formed sealing ring is demolded and taken off from the lower mold 7, the screw ring 36 is rotated as needed, the screw ring 36 moves along the L-shaped pipe 17 to the direction close to the lower mold 7 by the rotating power and the screwing with the screw groove 34, the screw ring 36 can push the annular brush 37 to move along the guide block 40 to the direction close to the lower mold 7 through the support sleeve 35, the end of the annular brush 37 can contact the lower mold 7, then the hydraulic rod 3 is controlled to continue to shrink, the hot pressing plate 4 continues to move upward from the upper one-third of the guide rod 6, the lower mold 7 is rotated by the pulling rope 32, and the annular brush 37 is brushed to remove the residual glue on the lower mold 7 by the friction between the lower mold 7 and the annular brush 37, and then the annular brush 37 is reset by reversing the rotation of the screw ring 36.

[0133] As a preferred embodiment of the present application, a surface treatment method of a sealing ring, the surface treatment method of the sealing ring comprises:

[0134] The at least one contact and friction surface of the sealing ring and the lower mold 7 is subjected to laser treatment, so that a uniform micro concave-convex structure is formed on the surface.

[0135] The laser treatment is a laser treatment on the surface of the lip position or the metal skeleton 2a of the sealing ring provided on the lower mold 7 (metal skeleton surface low friction treatment 2d), using a 3D laser equipment to emit laser fiber to form a roughness on the surface of the lip of the lower mold 7 or the surface of the metal skeleton 2a;

[0136] In the process of hot pressing vulcanization forming of the sealing ring by using the lower mold 7, the roughness is reflected on the surface of the lip position corresponding to the sealing ring (lip low friction treatment 1h), so that the lip of the sealing ring (lip low friction treatment 1h) forms a uniform micro concave-convex surface.

[0137] As a preferred embodiment of the present application, the laser treatment parameters of the lip surface provided on the lower mold 7 are Ra1.5-2.5μm, and the laser treatment parameters of the surface of the metal skeleton 2a are Ra0.7-1.2μm;

[0138] The bottom tool of the 3D laser equipment is used to fix the lower mold 7 or the metal skeleton 2a, and through 3D rotation, the laser light is used to corrode the surface of the lip provided on the lower mold 7 or the surface of the metal skeleton 2a, so that the surface of the lip provided on the lower mold 7 or the surface of the metal skeleton 2a obtains a uniform roughness.

[0139] In the actual application process of the embodiment, at least one contact friction surface (lip low friction treatment 1h) in the sealing ring vulcanized and formed by using the lower mold 7 has a uniform micro concave-convex structure, so as to reduce the contact area in the running process and thereby reduce the friction torque;

[0140] The lip surface of the sealing ring has a uniform micro concave-convex surface, which is formed by the vulcanization feedback after the laser treatment on the corresponding position of the lip of the vulcanization mold to form a roughness of Ra1.5-2.5μm;

[0141] The surface of the metal skeleton 2a of the sealing ring has a uniform micro concave-convex surface, and the roughness parameter of the micro concave-convex surface is Ra0.7-1.2μm;

[0142] The laser equipment is a 3D (three-axis linkage) laser equipment, which includes a bottom tool for fixing the lower mold 7 or the metal skeleton 2a of the sealing ring to be treated. The equipment can corrode the surface of the lower mold 7 or the surface of the metal skeleton 2a by 3D rotation and laser light, so that the surface of the lower mold 7 or the surface of the metal skeleton 2a obtains a uniform roughness. The roughness parameter can be adjusted to Ra1.5-2.5μm for the surface of the lower mold 7 and Ra0.7-1.2μm for the surface of the metal skeleton 2a.

[0143] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles described in the present application, can also be made several improvements and refinements, these improvements and refinements should also be considered the scope of protection of the present application.

Claims

1. A sealing ring processing equipment, comprising a base and a supporting frame fixed on the base, a hydraulic rod is fixed through the supporting frame, a heat pressing plate is fixed on the telescopic end of the hydraulic rod, a heat pressing seat is fixed on the base and located below the heat pressing plate, a lower mold is symmetrically arranged on the heat pressing seat, an upper mold is symmetrically fixed on the lower end of the heat pressing plate and corresponds to the position of the lower mold, a guide rod is symmetrically fixed on the heat pressing seat, the heat pressing plate is sleeved outside the guide rod, and a lip is arranged on the lower mold, characterized in that, The hot-press seat is internally fixed with an electric heating ring in symmetry, and is in position correspondence with the lower mold, and further comprises: The injection mechanism is provided through the hot-press plate, the guide rod and the support frame, and comprises a storage and injection assembly composed of a bellows provided in the guide rod in an extendable manner and a storage cylinder fixed on the outside of the support frame in symmetry, and further comprises a pressure restoring assembly composed of a spring provided on the inner side of the hot-press plate and a pressing block connected with the upper end of the bellows through the guide rod. The spin-spray mechanism is rotationally connected with the hot-press seat, and is connected with the injection mechanism and the lower mold, and comprises a spin-pull assembly composed of a heat-conducting column fixed on the lower end of the lower mold, a glass fiber elastic rope wound on the lower side of the heat-conducting column and a pull rope movably provided through the spring, the hot-press plate and the hot-press seat, and further comprises a spray assembly composed of an inclined plate elastically connected with the guide rod and two spray heads connected with the lower end of the bellows through the guide rod, so as to rotate the lower mold at the initial stage of the mold closing and cooperate with the injection mechanism to spray the release agent to the upper mold and the lower mold. The wipe mechanism is screwedly provided on the outside of the spin-spray mechanism, and comprises an adjusting assembly screwedly connected with the spray assembly and a guide-wipe assembly rotationally connected with the adjusting assembly, and the guide-wipe assembly is guidingly connected with the spray heads, so as to clean the adhering matters on the lower mold during the mold opening.

2. The seal ring processing apparatus according to claim 1, wherein The storage and injection assembly comprises: An inner channel is provided through the guide rod and is located at the upper third of the guide rod; The bellows is located on the inner side of the inner channel and is fixedly connected with the guide rod at the lower end; The storage part is provided on the outside of the support frame and is connected with the bellows.

3. The seal ring processing apparatus of claim 2, wherein The storage part comprises: A first one-way valve is provided through the lower end of the bellows and is embedded in the inner side of the guide rod; An injection pipe is provided through the guide rod and the support frame, and one end of the injection pipe is connected with the first one-way valve and the other end of the injection pipe is connected with the storage cylinder; A floating ball valve is provided through the upper end of the storage cylinder.

4. The seal ring processing apparatus of claim 3, wherein The pressure restoring assembly comprises: A through groove is symmetrically provided through the hot-press plate and is located on the outside of the guide rod; The spring is located on the inner side of the through groove and is fixedly connected with the inner wall of the hot-press plate at the lower end; A connecting plate is fixedly connected with the upper end of the bellows on both sides and is welded with the pressing block.

5. The seal ring processing apparatus of claim 4, wherein The spin-pull assembly comprises: An active groove is provided through the upper end of the hot-press seat and is located below the lower mold; The heat-conducting column is located in the active groove and is located on the inner side of the electric heating ring and is rotationally connected with the hot-press seat through a bearing; A winding cylinder is integrally formed on the lower end of the heat-conducting column; The glass fiber elastic rope is located on the outside of the winding cylinder, one end of the glass fiber elastic rope is fixedly connected with the winding cylinder and the other end of the glass fiber elastic rope is fixedly connected with the inner wall of the active groove; A winding drum is fixedly connected with the lower end of the winding cylinder and is fixedly connected with the lower end of the pull rope.

6. The seal ring processing apparatus of claim 5, wherein The spray assembly comprises: Two second one-way valves are provided through the lower end of the bellows and are embedded in the inner side of the guide rod, and are located on one side of the first one-way valve; An L-shaped pipe is provided through the guide rod, one end of the L-shaped pipe is connected with the output end of one of the second one-way valves and the other end of the L-shaped pipe is directed to the lower mold; A hose is provided through the guide rod, one end of the hose is connected with the output end of the other second one-way valve and the other end of the hose extends above the lower mold; One of the spray heads is connected with the other end of the hose and the other spray head is connected with the other end of the L-shaped pipe, the output end of one of the spray heads is directed to the upper mold and the output end of the other spray head is directed to the lower mold. The supporting and retracting part is rotatably arranged on the guide rod and connected with the hose.

7. The seal ring processing apparatus of claim 6, wherein The supporting and retracting part comprises: The receiving groove is arranged on the side of the guide rod close to the lower mold and below the inner channel; The other end of the L-shaped pipe is below the receiving groove, and the other end of the hose is arranged through the receiving groove; The inclined plate is arranged through the receiving groove and has one end inside the receiving groove and rotatably connected with the guide rod; The torsion spring has one end fixedly connected with the guide rod and the other end fixedly connected with the inclined plate; The pull rope is staggered with the L-shaped pipe and the hose and movably arranged through the inclined plate; The connecting rod has one end welded with the inclined plate and the other end welded with the outside of one of the spray heads.

8. The seal ring processing apparatus of claim 7, wherein The adjusting assembly comprises: The threaded groove is arranged on the outside of the lower end of the L-shaped pipe; The supporting sleeve is arranged on the outside of the L-shaped pipe; The threaded ring is arranged on the outside of the L-shaped pipe, screw-connected with the threaded groove, and rotatably connected with one end of the supporting sleeve through the bearing; The guide assembly comprises: The annular brush is arranged on the outside of the L-shaped pipe and the other spray head and has one end away from the spray head fixedly connected with the supporting sleeve; The guide groove is arranged on the inner top wall of the annular brush; The guide block is welded on the outside of the other spray head and extends into the guide groove.

9. A surface treatment method of a sealing ring, which is applied to the sealing ring processing apparatus according to claim 1, characterized by, The surface treatment method of the sealing ring comprises: The at least one contact and friction surface of the sealing ring and the lower mold is subjected to laser treatment, so that a uniform micro concave-convex structure is formed on the surface; The laser treatment is performed on the lip position arranged on the lower mold or the metal framework surface of the sealing ring by using a 3D laser equipment to emit laser fiber, so that the lip surface of the lower mold or the metal framework surface forms roughness; During the hot pressing vulcanization forming of the sealing ring by using the lower mold, the roughness is reflected on the surface of the corresponding lip position of the sealing ring, so that the lip of the sealing ring forms a uniform micro concave-convex surface.

10. The surface treatment method of a seal ring according to claim 9, wherein The laser treatment parameters of the lip surface arranged on the lower mold are Ra1.5-2.5μm, and the laser treatment parameters of the metal framework surface are Ra0.7-1.2μm; The 3D laser equipment bottom tool is used to fix the lower mold or the metal framework, and the laser light is used to corrode the lip surface arranged on the lower mold or the metal framework surface by 3D rotation, so that the lip or the metal framework surface of the lower mold obtains uniform roughness.

Images