Curing device for manufacturing rubber tire having high curing activity

Abstract

The present invention relates to the technical field of tire processing. Disclosed is a curing device for manufacturing a rubber tire having high curing activity. The curing device specifically comprises a base; the top end of the base is connected to a movable seat by means of a first hydraulically retractable rod; and a lower mold adapted to a rubber tire is fixed to the top of the movable seat, a fixing hole being provided in the middle of the movable seat, a blocking and connection structure being provided under the fixing hole, a slot being provided outside the fixing hole, a limiting ring adapted to a green tire being movably connected in an inner cavity of the slot, and the limiting ring being connected to the movable seat by means of a second hydraulically retractable rod. Said curing device is provided with an airbag structure, so that during the curing process of a rubber tire, a molding block can occupy part of the space in a green tire so as to reduce the amount of gas required when a curing bladder presses the green tire, such that the gas can quickly come into contact with the green tire to press the green tire, thereby improving the curing speed of green tires.

Description

A vulcanizing equipment for manufacturing high vulcanizate active rubber tires Technical Field

[0001] This invention relates to the field of tire processing technology, specifically to a vulcanization equipment for manufacturing high vulcanization-activity rubber tires. Background Technology

[0002] High-vulcanizate rubber tires require vulcanization during manufacturing, a process that necessitates the use of a vulcanizing machine. Currently, vulcanizing machines typically employ a mold-pressurization method. The specific operation involves placing the green tire between a sealed vulcanizing bladder and a vulcanizing mold. Saturated steam is introduced into the vulcanizing bladder to heat it and the vulcanizing mold, providing the necessary heat for vulcanization to the green tire. High-pressure nitrogen gas is then introduced into the vulcanizing bladder to provide the pressure required for vulcanization. The vulcanizing bladder expands, compressing the green tire, and, in conjunction with the vulcanizing machine, shapes and vulcanizes the tire to improve its strength. In the above-mentioned method, the vulcanizing capsule needs to be expanded to the same volume as the inner cavity of the green tire before gas can be continuously introduced into the vulcanizing capsule to heat or compress the green tire. When the vulcanized rubber is removed, the gas in the vulcanizing capsule needs to be completely discharged, which undoubtedly increases the tire vulcanization time and reduces the tire vulcanization speed. Moreover, when the tire is picked up or put down, the operator needs to reach under the mold with their hands or tools, which reduces the safety and work efficiency during use. Based on this, this application proposes a vulcanization equipment for manufacturing high vulcanization activity rubber tires. Summary of the Invention

[0003] This invention provides a vulcanization equipment for manufacturing high vulcanization activity rubber tires, which solves the problems mentioned in the background art, such as the need for the vulcanization bladder to expand to the same volume as the inner cavity of the green tire during tire vulcanization, which increases the tire vulcanization time and reduces the tire vulcanization speed; and the need for workers to reach under the mold with their hands or tools when picking up and putting down tires, which reduces the safety and work efficiency during use.

[0004] This invention provides the following technical solution: a vulcanizing device for manufacturing high-vulcanizate active rubber tires, comprising a base, a movable seat connected to the top of the base via a hydraulic telescopic rod, a lower mold adapted to the rubber tire fixed to the top of the movable seat, a fixing hole in the middle of the movable seat, a sealing connection structure below the fixing hole, a groove outside the fixing hole, a limiting ring adapted to the green tire movably connected inside the groove, the limiting ring being connected to the movable seat via a hydraulic telescopic rod; a sealing cover connected to the top of the base via a hydraulic telescopic rod, an upper mold adapted to the lower mold being located at the bottom of the inner cavity of the sealing cover, and an airbag structure connected to the middle of the sealing cover via a hydraulic telescopic rod.

[0005] The sealing connection structure includes a hydraulic telescopic rod five fixedly connected to the movable seat, a movable plate connected to the hydraulic telescopic rod five, a sealing rod connected to one end of the top of the movable plate by a spring, and an air inlet pipe and an exhaust pipe connected to the other end of the top of the movable plate.

[0006] The airbag structure includes an insert rod adapted to a fixing hole. A hydraulic telescopic rod six is ​​uniformly fixedly connected to the bottom end of the insert rod. The other end of the hydraulic telescopic rod six is ​​connected to a vulcanized capsule through a shaping block. A connecting pipe adapted to an air inlet pipe and an air outlet pipe is fixed on the vulcanized capsule. A hydraulic telescopic rod seven is uniformly fixedly connected to the top end of the insert rod. A hydraulic telescopic rod eight is fixedly connected to the bottom of the hydraulic telescopic rod seven. Another shaping block is fixedly connected to the other end of the hydraulic telescopic rod eight.

[0007] Preferably, the hydraulic telescopic rods six and eight are alternately arranged, and the shaping block in the airbag structure can form a ring structure that matches the inner diameter of the green tire.

[0008] Preferably, the insertion rod is fixedly connected to the end of the output shaft of the hydraulic telescopic rod four, and the connecting pipe is a telescopic pipe.

[0009] Preferably, a limiting rod is fixedly connected to one end of the top of the movable plate, a sealing rod is movably sleeved on the outer ring of the limiting rod, a spring groove is provided in the middle of the limiting rod, a spring is fixedly connected to the bottom of the inner cavity of the spring groove, and the other end of the spring is fixedly connected to the top of the inner cavity of the sealing rod.

[0010] Preferably, both the intake pipe and the exhaust pipe are equipped with an electric ball valve at one end.

[0011] Preferably, the bottom of the movable seat is at the same height as the top of the base.

[0012] Preferably, a pressure sensor is fixedly connected to the bottom of the sealing rod, and the height of the sealing rod is the same as the depth of the fixing hole.

[0013] Preferably, the outer surface of the sealing cover is covered with an insulating pad.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This vulcanizing equipment for manufacturing high vulcanization activity rubber tires, through the setting of the air bladder structure, allows the shaping block to occupy part of the space inside the green tire during the vulcanization process, reducing the amount of gas required when the vulcanizing bladder squeezes the green tire, so that the gas can quickly contact and squeeze the green tire, thereby increasing the vulcanization speed of the green tire.

[0016] 2. The vulcanization equipment for manufacturing high-vulcanizate active rubber tires features a movable seat that allows the lower and upper molds to be staggered. This eliminates the need for workers to reach under the molds with their hands or tools when picking up or placing tires, improving the safety of the equipment. Furthermore, the airbag structure separates from the lower mold during tire handling, reducing the tire's moving height and thus increasing the efficiency of tire handling. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the mold-closing structure of the present invention;

[0018] Figure 2 is a schematic diagram of the mold opening of the present invention;

[0019] Figure 3 is a schematic diagram of the airbag structure of the present invention;

[0020] Figure 4 is an exploded view of the structure of the present invention as shown in Figure 3.

[0021] Figure 5 is a bottom view of the structure of the present invention shown in Figure 3.

[0022] Figure 6 is a top view of the movable seat structure of the present invention;

[0023] Figure 7 is a bottom view of the movable seat structure of the present invention;

[0024] Figure 8 is an exploded view of the movable base of the present invention;

[0025] Figure 9 is a schematic diagram of the bottom of the sealing rod of the present invention.

[0026] In the diagram: 1. Base; 2. Movable seat; 3. Hydraulic telescopic rod one; 4. Hydraulic telescopic rod three; 5. Sealing cover; 7. Insert rod; 8. Hydraulic telescopic rod seven; 9. Lower mold; 10. Vulcanizing capsule; 11. Hydraulic telescopic rod four; 12. Shaping block; 13. Hydraulic telescopic rod six; 14. Hydraulic telescopic rod eight; 15. Connecting pipe; 16. Fixing hole; 17. Limiting ring; 18. Hydraulic telescopic rod two; 19. Hydraulic telescopic rod five; 20. Movable plate; 21. Sealing rod; 22. Pressure sensor; 23. Spring; 24. Limiting rod; 25. Exhaust pipe; 26. Intake pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides a vulcanizing device for manufacturing high-vulcanizate rubber tires, comprising a base 1, a movable seat 2 connected to the top of the base via a hydraulic telescopic rod 3, and a sealing cover 5 connected to the top of the base 1 via a hydraulic telescopic rod 4. When the hydraulic telescopic rod 3 is fully retracted, the movable seat 2 is located directly below the sealing cover 5, and the bottom of the movable seat 2 is at the same height as the top of the base. When the hydraulic telescopic rod 3 is fully retracted, the base 1 can support the movable seat 2, facilitating the vulcanization of the rubber tire. When the hydraulic telescopic rod 3 is extended, the movable seat 2 can be offset from the sealing cover 5, so that when the tire is picked up or put down, the operator does not need to put their hands or tools under the mold, thus improving the safety of the vulcanizing device during use.

[0029] The top of the movable base 2 is fixed with a lower mold 9 adapted to the rubber tire. A fixing hole 16 is provided in the middle of the movable base 2, and a sealing connection structure is provided below the fixing hole 16. A groove is provided on the outside of the fixing hole 16, and a limiting ring 17 adapted to the green tire is movably connected inside the groove. The limiting ring 17 is connected to the movable base 2 via a hydraulic telescopic rod 18. The depth of the groove is not less than the height of the limiting ring 17. Under the action of the hydraulic telescopic rod 18, the limiting ring 17 can be completely hidden inside the groove, preventing it from restricting the tire and facilitating the vulcanization of the rubber tire. The depth of the groove can be set according to requirements and is not limited here.

[0030] The sealing connection structure includes a hydraulic telescopic rod 19 fixedly connected to the movable seat 2 and a movable plate 20 connected to the hydraulic telescopic rod 19. The extension and retraction of the hydraulic telescopic rod 19 can change the position of the movable plate 20 fixedly connected to it. A limit rod 24 is fixedly connected to one end of the top of the movable plate 20. A sealing rod 21 is movably sleeved on the outer ring of the limit rod 24. A spring groove is provided in the middle of the limit rod 24. A spring 23 is fixedly connected to the bottom of the inner cavity of the spring groove. The other end of the spring 23 is fixedly connected to the top of the inner cavity of the sealing rod 21. By setting the limit rod 24, the limit rod 24 can restrict the sealing rod 21 and limit the movement height of the sealing rod 21. By setting the spring 23, the distance between the sealing rod 21 and the limit rod 24 can be changed. When the restriction on the sealing rod 21 is released, the rebound force of the spring 23 can push the sealing rod 21 to move.

[0031] The height of the sealing rod 21 is the same as the depth of the fixing hole 16. The sealing rod 21 can be used to block the fixing hole 16 to prevent impurities from falling into the inner cavity of the fixing hole 16.

[0032] A pressure sensor 22 is fixedly connected to the bottom of the sealing rod 21. The position of the sealing rod 21 can be detected by the pressure sensor 22, so as to ensure the movement accuracy of the sealing rod 21.

[0033] The other end of the movable plate 20 is provided with an air inlet pipe 26 and an exhaust pipe 25. Both the air inlet pipe 26 and the exhaust pipe 25 are provided with an electric ball valve at one end, which can be used to control the air intake speed and the exhaust speed.

[0034] The bottom of the inner cavity of the sealing cover 5 is provided with an upper mold that is compatible with the lower mold 9. The middle part of the sealing cover 5 is connected to an airbag structure through a hydraulic telescopic rod 11. The extension and retraction of the hydraulic telescopic rod 11 can change the position of the airbag structure that is fixedly connected to it.

[0035] The airbag structure includes an insert rod 7 that is adapted to the fixing hole 16. The insert rod 7 is fixedly connected to the end of the output shaft of the hydraulic telescopic rod 11. When the vulcanizing equipment is in use, the bottom end of the insert rod 7 is inserted into the inner cavity of the fixing hole 16, and the bottom of the insert rod 7 is at the same height as the top of the sealing rod 21. At this time, the insertion depth of the insert rod 7 can be monitored by the pressure sensor 22 to ensure the insertion accuracy of the insert rod 7.

[0036] Hydraulic telescopic rods 13 are uniformly fixedly connected to the bottom end of the insertion rod 7. The other end of the hydraulic telescopic rods 13 is connected to the vulcanizing capsule 10 through the shaping block 12. By setting the hydraulic telescopic rods 13, the extension and retraction of the hydraulic telescopic rods 13 can change the position of the shaping block 12 fixedly connected to them. When the position of the shaping block 12 changes, the vulcanizing capsule 10 can be pulled, changing the volume of the vulcanizing capsule 10. A connecting pipe 15 adapted to the air inlet pipe 26 and the exhaust pipe 25 is fixed on the vulcanizing capsule 10. The connecting pipe 15 is a telescopic pipe, and the material of the connecting pipe 15 can be a corrugated pipe that is resistant to high temperature and high pressure. There are at least two connecting pipes 15. When the air inlet pipe 26 and the exhaust pipe 25 are in contact with the bottom of the insertion rod 7, the top of the air inlet pipe 26 is tightly fitted with the bottom of one connecting pipe 15, and the top of the exhaust pipe 25 is tightly fitted with the bottom of the other connecting pipe 15.

[0037] Hydraulic telescopic rods 7 and 8 are uniformly fixedly connected to the top of the insertion rod 7. Hydraulic telescopic rods 8 and 14 are fixedly connected to the bottom of the insertion rod 7 and 14. Another shaping block 12 is fixedly connected to the other end of the hydraulic telescopic rod 8 and 14. The extension and retraction of the hydraulic telescopic rod 7 and 8 can change the position of the hydraulic telescopic rod 8 and 14, respectively, and the extension and retraction of the hydraulic telescopic rod 8 and 14 can change the position of the other shaping block 12. The aforementioned hydraulic telescopic rods 6 and 8 are alternately arranged, and the shaping block 12 has an arc-shaped structure. All the shaping blocks 12 in the air bladder structure can form a ring structure that matches the inner diameter of the green tire. At this time, the ring structure expands the vulcanizing bladder 10 into a ring structure. When the vulcanizing bladder 10 is inflated, it expands uniformly.

[0038] As can be seen from the above description of the airbag structure, during the vulcanization process of the rubber tire, the shaping block 12 can occupy part of the space inside the green tire, reduce the amount of gas required when the vulcanizing bladder 10 compresses the green tire, increase the speed of gas contact with the tire, and thus increase the vulcanization speed of the green tire.

[0039] The outer surface of the sealing cover 5 is covered with an insulation pad, which can be made of pearl cotton. By setting the insulation pad, heat loss during the tire vulcanization process can be reduced, thus reducing the energy consumption of the equipment.

[0040] In summary: When using this vulcanization equipment for manufacturing high-vulcanizate active rubber tires, the moving seat 2 and the sealing cover 5 are misaligned when the green tire is placed. The hydraulic telescopic rod 18 extends, causing the limiting ring 17 to move into the inner cavity of the lower mold 9. The limiting ring 17 can limit the green tire. After the green tire is placed in the inner cavity of the lower mold 9, the hydraulic telescopic rod 3 retracts until the moving seat 2 is directly below the sealing cover 5. Then, the hydraulic telescopic rod 18 retracts, causing the limiting ring 17 to move downwards until it is hidden within the groove. Inside the cavity, the hydraulic telescopic rod 34 retracts, causing the sealing cover 5 to move downwards. When the sealing cover 5 is completely in contact with the bottom of the base 1, the lower mold 9 and the upper mold close. During the retraction of the hydraulic telescopic rod 34, the hydraulic telescopic rod 41 extends, causing the airbag structure to move downwards until the bottom of the insertion rod 7 is at the same height as the top of the sealing rod 21. The hydraulic telescopic rod 41 then retracts, and its retraction height is the same as that of the hydraulic telescopic rod 34, thus keeping the airbag structure in a fixed position. During insertion, the insertion rod 7 compresses the sealing rod 21. 1. When the sealing rod 21 moves downward and the insertion rod 7 is fully inserted into the fixing hole 16, the sealing rod 21 separates from the fixing hole 16, and the pressure sensor 22 detects the pressure. The hydraulic telescopic rod 19 drives the moving plate 20 to move, and the moving plate 20 drives the sealing rod 21 to move, so that the sealing rod 21 is misaligned with the fixing hole 16, until the air inlet pipe 26 and the exhaust pipe 25 move below the fixing hole 16. At this time, the top of the air inlet pipe 26 is tightly fitted with the bottom of the connecting pipe 15, and the top of the exhaust pipe 25 is tightly fitted with the bottom of the other connecting pipe 15. During the retraction of the hydraulic telescopic rod 11, the hydraulic telescopic rod 13... The hydraulic sizing block 12 moves into the inner cavity of the green tire. The hydraulic telescopic rod 7 8 moves the hydraulic telescopic rod 8 14 downwards until it is at the same height as the hydraulic telescopic rod 4 11. The hydraulic telescopic rod 8 14 extends, moving the other sizing block 12 connected to it until it forms a ring structure. The cavity of the green tire is partially occupied by this ring structure, reducing the amount of gas required for the vulcanizing bladder 10 to compress the green tire. This allows the gas to quickly contact and compress the green tire, thus increasing the vulcanization speed. The gas (vapor + high-pressure nitrogen) required during tire vulcanization enters the inner cavity of the vulcanizing bladder 10 through the intake pipe 26 and the connecting pipe 15 in contact with the intake pipe 26, increasing the volume of the vulcanizing bladder 10. Excess gas inside the vulcanizing bladder 10 is discharged through another connecting pipe in contact with the exhaust pipe 25 and the exhaust pipe 25.

[0041] During demolding, the vulcanizing bladder 10 releases air. After the other shaping block 12 separates from the vulcanizing bladder 10, the hydraulic telescopic rod 8 14 and the hydraulic telescopic rod 7 8 drive the other shaping block 12 to reset. The hydraulic telescopic rod 4 11 drives the shaping block 12 connected to it to reset, realizing the separation of the airbag structure from the high vulcanization activity rubber tire. The hydraulic telescopic rod 3 4 drives the sealing cover 5 to move upward. The sealing cover 5 drives the upper mold and the airbag structure to move upward. When the airbag structure moves above the tire, the hydraulic telescopic rod 1 3 extends. The hydraulic telescopic rod 1 3 drives the moving seat 2 to move until the moving seat 2 is misaligned with the sealing cover 5, which facilitates the removal and placement of the tire.

[0042] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vulcanizing device for manufacturing high-vulcanization-activity rubber tires, comprising a base (1), characterized in that: The top of the base (1) is connected to a movable seat (2) via a hydraulic telescopic rod (3). The top of the movable seat (2) is fixed with a lower mold (9) adapted to the rubber tire. The middle of the movable seat (2) is provided with a fixing hole (16). A sealing connection structure is provided below the fixing hole (16). The outside of the fixing hole (16) is provided with a groove. A limiting ring (17) adapted to the green tire is movably connected in the inner cavity of the groove. The limiting ring (17) is connected to the movable seat (2) via a hydraulic telescopic rod (2) (18). The top of the base (1) is connected to a sealing cover (5) via a hydraulic telescopic rod (3) (4). The bottom of the inner cavity of the sealing cover (5) is provided with an upper mold adapted to the lower mold (9). The middle of the sealing cover (5) is connected to an airbag structure via a hydraulic telescopic rod (4) (11). The sealing connection structure includes a hydraulic telescopic rod five (19) fixedly connected to the movable seat (2), a movable plate (20) connected to the hydraulic telescopic rod five (19), a sealing rod (21) connected to one end of the top of the movable plate (20) via a spring (23), and an air inlet pipe (26) and an exhaust pipe (25) connected to the other end of the top of the movable plate (20). The airbag structure includes an insert rod (7) adapted to the fixing hole (16). A hydraulic telescopic rod six (13) is uniformly fixedly connected to the bottom end of the insert rod (7). The other end of the hydraulic telescopic rod six (13) is connected to a vulcanized capsule (10) through a shaping block (12). A connecting pipe (15) adapted to the air inlet pipe (26) and the exhaust pipe (25) is fixed on the vulcanized capsule (10). A hydraulic telescopic rod seven (8) is uniformly fixedly connected to the top end of the insert rod (7). A hydraulic telescopic rod eight (14) is fixedly connected to the bottom of the hydraulic telescopic rod seven (8). Another shaping block (12) is fixedly connected to the other end of the hydraulic telescopic rod eight (14).

2. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: The six (13) and eight (14) hydraulic telescopic rods are alternately arranged, and the shaping block (12) in the airbag structure can form a ring structure that matches the inner diameter of the green tire.

3. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: The insertion rod (7) is fixedly connected to the end of the output shaft of the hydraulic telescopic rod four (11), and the connecting pipe is a telescopic pipe.

4. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: One end of the top of the movable plate (20) is fixedly connected to a limiting rod (24), and a sealing rod (21) is movably sleeved on the outer ring of the limiting rod (24). A spring groove is provided in the middle of the limiting rod (24), and a spring (23) is fixedly connected to the bottom of the inner cavity of the spring groove. The other end of the spring (23) is fixedly connected to the top of the inner cavity of the sealing rod (21).

5. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: Both the intake pipe (26) and the exhaust pipe (25) are equipped with an electric ball valve at one end.

6. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: The bottom of the movable seat (2) is at the same height as the top of the base.

7. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: A pressure sensor (22) is fixedly connected to the bottom of the sealing rod (21), and the height of the sealing rod (21) is the same as the depth of the fixing hole (16).

8. The vulcanizing equipment for manufacturing high-vulcanization-activity rubber tires according to claim 1, characterized in that: The outer surface of the sealing cover (5) is covered with a heat-insulating pad.

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