Semi-steel radial tire vulcanizing bladder device and its usage method

Abstract

A semi-steel radial tire vulcanization bladder device and its usage method according to the present invention include two gas storage pipes. At one end of the two relatively close gas storage pipes, there is an electric telescopic rod. The upper and lower ends of the electric telescopic rod are respectively connected to one end of the two relatively close gas storage pipes. A piston plate is movably sleeved inside the gas storage pipe. One end of the piston plate away from the electric telescopic rod is fixedly connected to a piston rod located inside the gas storage pipe. By converting the pressure of nitrogen into power, the integral chuck is divided into six equal-sector sectors. The synchronous outward expansion of the six equal-sector sectors is realized by using the pressure of the charged nitrogen, so that the centers of the multiple equal-sector sectors are kept consistent, and only the overall diameter of the enclosed ring changes, completing the adjustment of the overall diameter of the chuck, avoiding the problem that the traditional device needs to replace different chucks when processing tires of different specifications, having strong versatility and being suitable for batch use.

Description

Technical Field

[0001] The invention relates to a semi-steel radial tire vulcanization bladder device and a use method thereof, belonging to the technical field of tire bladder preparation. Background Art

[0002] A semi-steel radial tire features a radially arranged carcass with circumferential or nearly circumferentially arranged breaker layers tightly bound to the carcass. It consists of six main components: tread, carcass, sidewalls, breaker layer (or belt), bead, and innerliner (or airtight layer). A semi-steel radial tire is a type of radial tire, commonly referred to as a passenger car tire. Radial tires can be categorized into three types based on the cord materials used in the carcass and belt layers: full-steel radial, semi-steel radial, and full-fiber radial. Radial tires offer superior performance compared to bias-ply tires due to their rational structure and improved load-bearing properties. During the production process, radial tires typically undergo a vulcanization treatment to improve rubber properties. The rough tires are typically placed in a vulcanization chamber and subjected to high-temperature, high-pressure treatment using a vulcanizing bladder.

[0003] During the vulcanization of rubber tires, a vulcanization bladder is generally used to vulcanize the tire from the inner side. The operation method generally involves placing the tire inside a vulcanization chamber, and installing a vulcanization bladder inside the vulcanization device. The vulcanization bladder is driven to expand outward by downward pressure to make contact with the tire, and the vulcanization operation is achieved in a high temperature and high pressure environment. This operation method is limited by the inner diameter of the tire. Different sizes of tire inner diameters require different sizes of chucks to clamp the vulcanization bladder, resulting in the need to replace different chucks for each tire of different specifications, resulting in poor versatility.

[0004] Since the vulcanization process of a tire is mainly achieved by fitting a vulcanization bladder to the tire, the prior art generally relies on the proximity of the upper and lower chucks to reduce the distance between the two chucks, thereby causing the vulcanization bladder on the outer side of the chuck to fit with the tire to achieve the vulcanization of the rubber. However, it is difficult to control the uniform expansion of the vulcanization bladder by simply changing the distance, which can easily lead to uneven vulcanization of the tire. Therefore, improvement is urgently needed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a semi-steel radial tire curing bladder device and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A semi-steel radial tire vulcanizing bladder device includes two gas storage pipes. At one end where the two gas storage pipes are relatively close to each other, there are electric telescopic rods. The upper and lower ends of the electric telescopic rods are respectively connected to the relatively close ends of the two gas storage pipes. A piston plate is movably sleeved inside the gas storage pipe. One end of the piston plate away from the electric telescopic rod is fixedly connected to a piston rod located inside the gas storage pipe. The end of the piston rod away from the piston plate penetrates one end of the gas storage pipe and is fixedly installed with a movable plate. At the top of the movable plate, there is an adjustment component. At the top of the adjustment component, chuck plates are arranged at equal angles. The outer side of the piston rod is movably sleeved with a return spring. The upper and lower ends of the return spring are respectively connected to the bottom end of the movable plate and the top end of the gas storage pipe.

[0008] Before using the device, first ensure that the electric telescopic rod has sufficient power. At the same time, select nitrogen with an appropriate volume according to the inner diameter of the green tire to be vulcanized and used to fill the inner cavity of the gas storage pipe, and prepare the vulcanizing bladder for the corresponding vulcanization operation to complete the material preparation work before vulcanization.

[0009] Preferably, the number of the chuck plates is twelve in total, and every six form a group and are distributed at the upper and lower ends of the gas storage pipe. Each group of chuck plates forms an annular shape. A clamping groove is formed on the outer side of the chuck plate, and a vulcanizing bladder is movably clamped on the outer side of the clamping groove.

[0010] Preferably, air inlet holes are arranged at equal angles at a position near the bottom end of the inner cavity of the gas storage pipe. An air inlet box is fixedly sleeved on the outer side of the gas storage pipe, and the air inlet box is communicated with the inside of the air inlet holes.

[0011] Preferably, air inlet valves are fixedly communicated with both the left and right ends of the air inlet box. A one-way valve is installed inside the air inlet valve, and the direction of the valve is inward conduction and outward cut-off.

[0012] When adjusting the device, first close the exhaust valve, connect the external nitrogen tank to the air inlet valve, open the nitrogen tank, and transport nitrogen through the air inlet valve to the inside of the air inlet box, and inject it into the gas storage pipe through the air inlet holes to complete the gas storage. At this time, due to the existence of the one-way valve inside the air inlet valve, the nitrogen entering can only stay inside the gas storage pipe and cannot overflow, providing a power source for subsequent adjustment.

[0013] Preferably, the adjustment component includes a third fixing seat. The third fixing seats are fixedly arranged at equal angles on the top of the movable plate. One end of the third fixing seat away from the movable plate is movably connected to a connecting rod through a rotating shaft.

[0014] Preferably, one end of the connecting rod away from the third fixing seat is movably connected to a fourth fixing seat through a rotating shaft. The adjustment component further includes a fixing plate. Connecting rods are fixedly installed at equal angles at the bottom end of the fixing plate, and the other ends of the connecting rods are connected to the gas storage pipe.

[0015] Preferably, guiding grooves are equiangularly formed on the outer side surface of the fixing plate. Guide blocks are fixedly installed at the tops of the fourth fixing seats. The fourth fixing seats are movably clamped with the guiding grooves through the guide blocks. The tops of the guide blocks are connected to the bottoms of the chuck plates.

[0016] As nitrogen is continuously injected, the amount of nitrogen inside the gas storage pipe significantly increases and exerts a certain pressure on the piston plate. At this time, the piston plate moves in the direction away from the air inlet box, and the piston plate, the piston rod, and the movable plate move upward accordingly, and the return spring is stretched. At this time, the distance between the movable plate and the fixing plate decreases accordingly, and the connecting rod deflects outward, driving the guide block to slide relative to the guiding groove. Since the outward deflection of the connecting rod causes the guide block to tend to move outward, under the action of the guiding groove, it moves toward the outer side surface accordingly, driving a plurality of chuck plates to move toward the outer side surface. At this time, the diameter of the ring formed by the plurality of chuck plates increases, completing the adjustment of the overall diameter of the chuck plates.

[0017] By converting the pressure of the nitrogen filled before processing into power and dividing the integral chuck plate into six equally divided sectors, the synchronous outward expansion of the six equally divided sectors is realized by using the pressure of the filled nitrogen, so that the centers of the plurality of equally divided sectors are kept consistent, and only the overall diameter of the enclosed ring changes, completing the adjustment of the overall diameter of the chuck plate, avoiding the problem that different chucks need to be replaced when processing tires of different specifications in the traditional device, with strong versatility and suitable for batch use.

[0018] Preferably, exhaust holes are equiangularly formed on the outer side surface of the gas storage pipe above the air inlet holes. Exhaust valves are fixedly installed on the outer side surface of the gas storage pipe at equal angles. The exhaust valves are communicated with the exhaust holes. A one-way valve is installed inside the exhaust valve and the direction of the valve is outward conduction and inward cut-off.

[0019] Preferably, fixing rings are fixedly installed on the outer side surfaces of the two relatively remote ends of the gas storage pipes. First fixing seats are fixedly installed at equal angles at the relatively close ends of the two fixing rings. The relatively close ends of the two first fixing seats are both movably connected through a rotating shaft with support rods located on one side of the exhaust valves. The relatively close ends of the two support rods are both movably connected through a rotating shaft with second fixing seats.

[0020] After the adaptive adjustment of the device is completed, the vulcanization bladder can be installed on the outer side of the card slot, and the device can be placed on the inner side of the tire. At the same time, the electric telescopic rod is activated to control the distance between the two gas storage pipes to decrease. At this time, the distance between the two fixing rings decreases, and the upper and lower support rods deflect outward accordingly. At this time, under the action of the two support rods, the second fixing seat displaces outward, pushing the vulcanization bladder to expand outward to make contact with the tire. At the same time, the exhaust valve can be opened. At this time, the nitrogen gas located inside the gas storage pipe is discharged through the exhaust holes and the exhaust valve and directly acts on the vulcanization bladder to make it fit evenly with the tire, completing the auxiliary vulcanization operation.

[0021] By reusing the nitrogen gas used in the adaptive adjustment of the device, and by releasing nitrogen gas and cooperating with the automatic outward expansion of multiple second fixing seats, the rapid and uniform fitting of the vulcanization bladder is achieved. This not only improves the vulcanization uniformity but also enables the automatic reset of the device, effectively avoiding the problem of the traditional device relying solely on distance changes to expand the vulcanization bladder. Through active auxiliary expansion, the uniform fitting of the vulcanization bladder is realized, improving the vulcanization uniformity and thus improving the product quality.

[0022] The usage method of the semi-steel radial tire vulcanization bladder device includes the following steps:

[0023] S1: Before the tire vulcanization operation, first connect the external inflation device to the intake valve according to the tire specifications, and fill nitrogen gas into it, and close the exhaust valve. At this time, the nitrogen gas can enter the interior of the intake box through the intake valve and enter the interior of the gas storage pipe through the intake holes;

[0024] S2: As the nitrogen gas is filled, the piston plate is immediately subjected to an upward pressure, driving the piston rod and the movable plate to move upward. As the distance between the movable plate and the fixed plate decreases, the connecting rod deflects outward at this time, driving the guide block to slide relative to the guide groove, that is, the guide block slides toward the outer side of the guide groove. At this time, multiple chucks move relatively away from each other and slide outward simultaneously, and the diameter of the enclosed ring increases, completing the adaptive adjustment;

[0025] S3: At this time, install the vulcanization bladder on the outer side of the card slot, place the green tire to be vulcanized in the vulcanization chamber, place the device in the middle of the tire and complete the sealing of the sealing chamber, perform the high-temperature pressurization operation, and control the electric telescopic rod to drive the two gas storage pipes to approach each other relatively, making preparations before vulcanization;

[0026] S4: At this time, the upper and lower support rods deflect outward accordingly, driving the second fixing seat to displace toward the outer side. At this time, the vulcanization bladder can be pushed to displace toward the inner side of the tire. At the same time, open the exhaust valve. At this time, the nitrogen gas inside the gas storage pipe can be discharged through the exhaust valve and act on the vulcanization bladder to further expand it outward, completing the vulcanization auxiliary operation.

[0027] The beneficial effects of the present invention are as follows:

[0028] In the present invention, the pressure of the nitrogen gas filled before processing is converted into power, and the integral chuck is divided into six equal - sector fan - shaped parts. The synchronous outward expansion of the six equal - sector fan - shaped parts is realized by using the pressure of the filled nitrogen gas, so that the centers of the multiple equal - sector fan - shaped parts are kept consistent, and only the overall diameter of the enclosed ring changes, completing the adjustment of the overall diameter of the chuck, avoiding the problem that the traditional device needs to replace different chucks when processing tires of different specifications, having strong versatility and being suitable for batch use.

[0029] At the same time, by recycling the nitrogen gas used for the adaptive adjustment of the device, through releasing nitrogen gas and cooperating with the automatic outward expansion of multiple second fixing seats, the rapid and uniform fitting of the vulcanization capsule is realized. It can not only improve the vulcanization uniformity, but also realize the automatic reset of the device, effectively avoiding the problem that the traditional device only relies on the change of the spacing for the expansion of the vulcanization capsule. Through the active auxiliary expansion, the uniform fitting of the vulcanization capsule is realized, improving the vulcanization uniformity, and thus improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 is a cross - sectional schematic diagram of a part of the structure of the present invention;

[0032] Figure 3 is a schematic diagram of the cooperation of the structures of two gas storage pipes of the present invention;

[0033] Figure 4 is a cross - sectional schematic diagram of the internal structure of the gas storage pipe of the present invention;

[0034] Figure 5 is a bottom - end schematic diagram of the structure of the chuck and the adjustment component of the present invention;

[0035] Figure 6 is a top - end schematic diagram of the structure of the chuck and the adjustment component of the present invention;

[0036] Figure 7 is an exploded schematic diagram of the structure of the adjustment component of the present invention;

[0037] Figure 8 is Figure 7 an enlarged schematic diagram of the structure at A in

[0038] In the figure: 1, gas storage pipe; 2, electric telescopic rod; 3, air inlet hole; 4, exhaust hole; 5, air inlet box; 6, air inlet valve; 7, exhaust valve; 8, fixing ring; 9, first fixing seat; 10, second fixing seat; 11, support rod; 12, piston plate; 13, piston rod; 14, return spring; 15, movable plate; 16, chuck; 17, card slot; 18, connecting rod; 19, adjusting assembly; 191, third fixing seat; 192, fourth fixing seat; 193, connecting rod; 194, guide block; 195, fixing plate; 196, guide slot. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] As Figures 1 to 8 shown, in the embodiment of the present invention, the semi-steel radial tire vulcanization bladder device includes two gas storage pipes 1. Electric telescopic rods 2 are provided at the relatively close ends of the two gas storage pipes 1. The upper and lower ends of the electric telescopic rods 2 are respectively connected to the relatively close ends of the two gas storage pipes 1. A piston plate 12 is movably sleeved inside the gas storage pipe 1. A piston rod 13 located inside the gas storage pipe 1 is fixedly connected to the end of the piston plate 12 away from the electric telescopic rod 2. The end of the piston rod 13 away from the piston plate 12 penetrates through one end of the gas storage pipe 1 and is fixedly provided with a movable plate 15. An adjusting assembly 19 is provided at the top of the movable plate 15. Chucks 16 are provided at equal angles at the top of the adjusting assembly 19. A return spring 14 is movably sleeved on the outer side of the piston rod 13. The upper and lower ends of the return spring 14 are respectively connected to the bottom end of the movable plate 15 and the top end of the gas storage pipe 1.

[0041] Before using the device, first ensure that the electric telescopic rod 2 has sufficient power. At the same time, select nitrogen with a suitable volume for filling the inner cavity of the gas storage pipe 1 according to the inner diameter of the green tire to be vulcanized, and prepare the vulcanization bladder for the corresponding vulcanization operation to complete the material preparation work before vulcanization.

[0042] As Figure 2 and Figure 3 as well as Figure 4 and Figure 5As shown, the number of chucks 16 is twelve in total, and every six of them are distributed in a group at the upper and lower ends of the gas storage pipe 1. Each group of chucks 16 forms an annular shape. A clamping groove 17 is provided on the outer side surface of the chuck 16. A vulcanized capsule is movably clamped on the outer side surfaces of the two clamping grooves 17. Air inlet holes 3 are equiangularly provided at a position near the bottom end inside the gas storage pipe 1. An air inlet box 5 is fixedly sleeved on the outer side surface of the gas storage pipe 1. The air inlet box 5 is communicated with the inside of the air inlet holes 3. Air inlet valves 6 are fixedly communicated with both the left and right ends of the air inlet box 5. A check valve is installed inside the air inlet valve 6, and the direction of the valve is inward conduction and outward cut-off.

[0043] When adjusting the device, first, the exhaust valve 7 needs to be closed, and the external nitrogen tank is communicated with the air inlet valve 6. Then, the nitrogen tank is opened to transport nitrogen into the inside of the air inlet box 5 through the air inlet valve 6, and it is injected into the inside of the gas storage pipe 1 through the air inlet holes 3 to complete the gas storage. At this time, due to the existence of the check valve inside the air inlet valve 6, the nitrogen that enters can only stay inside the gas storage pipe 1 and cannot overflow, providing a power source for subsequent adjustment.

[0044] As Figure 5 and Figure 6 as well as Figure 7 and Figure 8 As shown, the adjusting assembly 19 includes a third fixing seat 191, which is fixedly arranged at equal angles at the top end of the movable plate 15. One ends of the third fixing seats 191 far away from the movable plate 15 are all movably connected with connecting rods 193 through rotating shafts. One ends of the connecting rods 193 far away from the third fixing seats 191 are movably connected with a fourth fixing seat 192 through rotating shafts. The adjusting assembly 19 further includes a fixing plate 195. Connecting rods 18 are fixedly installed at equal angles at the bottom end of the fixing plate 195. The other ends of the connecting rods 18 are connected with the gas storage pipe 1. Guide grooves 196 are equiangularly provided on the outer side surface of the fixing plate 195. Guide blocks 194 are fixedly installed at the top ends of the fourth fixing seats 192. The fourth fixing seats 192 are movably clamped with the guide grooves 196 through the guide blocks 194. The top ends of the guide blocks 194 are connected with the bottom ends of the chucks 16.

[0045] First Embodiment:

[0046] As nitrogen gas is continuously injected, the amount of nitrogen gas inside the gas storage pipe 1 increases significantly and exerts a certain pressure on the piston plate 12. At this time, the piston plate 12 displaces in the direction away from the intake box 5, and the piston plate 12, the piston rod 13, and the movable plate 15 move upward accordingly, and the return spring 14 is stretched. At this time, the distance between the movable plate 15 and the fixed plate 195 decreases, and the connecting rod 193 deflects outward accordingly, driving the guide block 194 to slide relative to the guide groove 196. Since the outward deflection of the connecting rod 193 causes the guide block 194 to tend to move outward, at this time, under the action of the guide groove 196, it displaces toward the outer side, driving the plurality of chucks 16 to displace toward the outer side. At this time, the diameter of the ring formed by the plurality of chucks 16 increases, completing the adjustment of the overall diameter of the chuck.

[0047] By converting the pressure of the nitrogen gas filled before processing into power and dividing the integral chuck into six equal-sector sectors, the synchronous outward expansion of the six equal-sector sectors is realized by using the pressure of the filled nitrogen gas, so that the centers of the plurality of equal-sector sectors are kept consistent, and only the overall diameter of the enclosed ring changes, completing the adjustment of the overall diameter of the chuck, avoiding the problem that different chucks need to be replaced when processing tires of different specifications in traditional devices, with strong versatility and suitable for batch use.

[0048] As Figure 2 and Figure 3 and Figure 4 shown, exhaust holes 4 are equiangularly formed on the outer side of the gas storage pipe 1 above the intake holes 3, and exhaust valves 7 are fixedly installed on the outer side of the gas storage pipe 1 equiangularly. The exhaust valves 7 are communicated with the exhaust holes 4. A check valve is installed inside the exhaust valve 7, and the direction of the valve is outwardly conductive and inwardly cutoff. Fixed rings 8 are fixedly installed on the outer sides of the relatively far ends of the two gas storage pipes 1. First fixing seats 9 are fixedly installed on the relatively close ends of the two fixed rings 8 equiangularly. Support rods 11 located on one side of the exhaust valve 7 are movably connected to the relatively close ends of the two first fixing seats 9 through rotating shafts. Second fixing seats 10 are movably connected to the relatively close ends of the two support rods 11 through rotating shafts.

[0049] Second Embodiment:

[0050] After the adaptive adjustment of the device is completed, the vulcanization bladder can be installed on the outer side of the card slot 17, and the device can be placed on the inner side of the tire. At the same time, the electric telescopic rod 2 is turned on to control the distance between the two gas storage pipes 1 to decrease. At this time, the distance between the two fixing rings 8 decreases, and the upper and lower support rods 11 deflect outward accordingly. At this time, under the action of the two support rods 11, the second fixing seat 10 moves outward accordingly, pushing the vulcanization bladder to expand outward so as to make contact with the tire. At the same time, the exhaust valve 7 can be opened. At this time, the nitrogen gas located inside the gas storage pipe 1 is discharged through the exhaust hole 4 and the exhaust valve 7, and directly acts on the vulcanization bladder to make it fit evenly with the tire, completing the auxiliary vulcanization operation.

[0051] By recycling the nitrogen gas used in the adaptive adjustment of the device, and by releasing the nitrogen gas and cooperating with the automatic outward expansion of multiple second fixing seats 10, the rapid and uniform fitting of the vulcanization bladder is realized. It can not only improve the vulcanization uniformity, but also realize the automatic reset of the device, effectively avoiding the problem that the traditional device only relies on the change of distance to expand the vulcanization bladder. Through active auxiliary expansion, the uniform fitting of the vulcanization bladder is realized, the vulcanization uniformity is improved, and thus the product quality is improved.

[0052] The using method of the semi-steel radial tire vulcanization bladder device includes the following steps:

[0053] S1: Before the tire vulcanization operation, first connect the external inflation device with the intake valve 6 according to the specifications of the tire, and fill nitrogen gas into it, and close the exhaust valve 7. At this time, the nitrogen gas can enter the inside of the intake box 5 through the intake valve 6 and enter the inside of the gas storage pipe 1 through the intake hole 3;

[0054] S2: As the nitrogen gas is filled, the piston plate 12 is immediately subjected to an upward pressure, driving the piston rod 13 and the movable plate 15 to move upward. As the distance between the movable plate 15 and the fixed plate 195 decreases, the connecting rod 193 deflects outward accordingly, driving the guide block 194 to slide relative to the guide groove 196, that is, the guide block 194 slides toward the outer side of the guide groove 196. At this time, the multiple chucks 16 move relatively away from each other and slide outward at the same time, and the diameter of the enclosed ring increases, completing the adaptive adjustment;

[0055] S3: At this time, the vulcanization bladder is installed on the outer side of the card slot 17, and the green tire to be vulcanized is placed in the vulcanization chamber. The device is placed in the middle of the tire and the sealing of the sealing chamber is completed, and the high-temperature pressurization operation is carried out. The electric telescopic rod 2 is controlled to drive the two gas storage pipes 1 to approach each other relatively, making preparations before vulcanization;

[0056] S4: At this time, the upper and lower support rods 11 deflect outward accordingly, driving the second fixing seat 10 to displace towards the outer side. At this time, the vulcanization bladder can be pushed to displace towards the inner side of the tire. Meanwhile, the exhaust valve 7 is opened. At this time, the nitrogen gas inside the gas storage pipe 1 can be discharged through the exhaust valve 7 and act on the vulcanization bladder to further expand it outward, completing the vulcanization assistance operation.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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. Semi-steel radial tire curing bladder device, including two gas storage pipes (1), characterized in that: At the relatively close ends of the two gas storage pipes (1), there are electric telescopic rods (2). The upper and lower ends of the electric telescopic rod (2) are respectively connected to the relatively close ends of the two gas storage pipes (1). A piston plate (12) is movably sleeved inside the gas storage pipe (1). One end of the piston plate (12) away from the electric telescopic rod (2) is fixedly connected to a piston rod (13) located inside the gas storage pipe (1). One end of the piston rod (13) away from the piston plate (12) penetrates through one end of the gas storage pipe (1) and is fixedly installed with a movable plate (15). At the top of the movable plate (15), there is an adjustment assembly (19). At the top of the adjustment assembly (19), clamping plates (16) are arranged at equal angles. The outer side of the piston rod (13) is movably sleeved with a return spring (14). The upper and lower ends of the return spring (14) are respectively connected to the bottom end of the movable plate (15) and the top end of the gas storage pipe (1). The number of the clamping plates (16) is twelve in total, and every six form a group and are distributed at the upper and lower ends of the gas storage pipe (1). And each group of clamping plates (16) forms an annular shape. A clamping groove (17) is formed on the outer side of the clamping plate (16). A vulcanized capsule is movably clamped on the outer side of the clamping groove (17). The adjustment assembly (19) includes a third fixing seat (191). The third fixing seats (191) are fixed at equal angles on the top of the movable plate (15). One end of the third fixing seat (191) away from the movable plate (15) is movably connected to a connecting rod (193) through a rotating shaft. One end of the connecting rod (193) away from the third fixing seat (191) is movably connected to a fourth fixing seat (192) through a rotating shaft. The adjustment assembly (19) further includes a fixing plate (195). At the bottom end of the fixing plate (195), connecting rods (18) are fixedly installed at equal angles. The other end of the connecting rod (18) is connected to the gas storage pipe (1). Guide grooves (196) are formed at equal angles on the outer side of the fixing plate (195). Guide blocks (194) are fixedly installed at the top ends of the fourth fixing seats (192). The fourth fixing seats (192) are movably clamped with the guide grooves (196) through the guide blocks (194). The top end of the guide block (194) is connected to the bottom end of the clamping plate (16).

2. The semi-steel radial tire vulcanization bladder device according to claim 1, characterized in that: At equal angles at a position near the bottom end of the inner cavity of the gas storage pipe (1), air inlet holes (3) are formed. The outer side of the gas storage pipe (1) is fixedly sleeved with an air inlet box (5). The air inlet box (5) is communicated with the inside of the air inlet holes (3).

3. The semi-steel radial tire vulcanization bladder device according to claim 2, characterized in that: Both the left and right ends of the air inlet box (5) are fixedly communicated with air inlet valves (6). A one-way valve is installed inside the air inlet valve (6), and the direction of the valve is inward conduction and outward cut-off.

4. The semi-steel radial tire vulcanizing bladder device according to claim 3, characterized in that: At equal angles on the outer side of the gas storage pipe (1), exhaust holes (4) are formed above the air inlet holes (3). Exhaust valves (7) are fixedly installed at equal angles on the outer side of the gas storage pipe (1). The exhaust valves (7) are communicated with the exhaust holes (4). A one-way valve is installed inside the exhaust valve (7), and the direction of the valve is outward conduction and inward cut-off.

5. The semi-steel radial tire vulcanization bladder device according to claim 4, characterized in that: On the outer sides of the relatively far - away ends of the two gas storage pipes (1), fixing rings (8) are fixedly installed. At the relatively close - to - each - other ends of the two fixing rings (8), first fixing seats (9) are fixedly installed at equal angles. At the relatively close - to - each - other ends of the two first fixing seats (9), support rods (11) located on one side of the exhaust valve (7) are movably connected through rotating shafts. At the relatively close - to - each - other ends of the two support rods (11), second fixing seats (10) are movably connected through rotating shafts.

6. The method for using the curing bladder device of the semi-steel radial tire according to claim 5, wherein: Including the following method: S1: Before the tire vulcanization operation, first connect the external inflation device to the intake valve (6) according to the tire specifications, and fill nitrogen into it, and close the exhaust valve (7). At this time, nitrogen can enter the interior of the intake box (5) through the intake valve (6) and enter the interior of the gas storage pipe (1) through the intake holes (3). S2: As nitrogen is filled, the piston plate (12) is immediately subjected to an upward pressure, driving the piston rod (13) and the movable plate (15) to move upward. As the distance between the movable plate (15) and the fixed plate (195) decreases, at this time the connecting rod (193) deflects outward, driving the guide block (194) to slide relative to the guide groove (196), that is, the guide block (194) slides toward the outer side of the guide groove (196). At this time, the plurality of chucks (16) move relatively away from each other and slide outward simultaneously, and the diameter of the enclosed ring increases, completing the adaptive adjustment. S3: At this time, install the vulcanization capsule on the outer side of the card slot (17), place the green tire to be vulcanized in the vulcanization chamber, place this device in the middle of the tire and complete the sealing of the sealing chamber, perform high - temperature pressurization operation, and control the electric telescopic rod (2) to drive the two gas storage pipes (1) to move relatively closer to each other to prepare for vulcanization. S4: At this time, the upper and lower support rods (11) deflect outward, driving the second fixing seat (10) to displace toward the outer side. At this time, the vulcanization capsule can be pushed to displace toward the inner side of the tire. At the same time, open the exhaust valve (7). At this time, the nitrogen in the gas storage pipe (1) can be discharged through the exhaust valve (7) and act on the vulcanization capsule to further expand it outward, completing the vulcanization auxiliary operation.

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