Vulcanizing device for tire production

Abstract

The invention discloses a vulcanizing device for tire production, and relates to the technical field of vulcanizing machines, the vulcanizing device comprises a rack, a lower seat is fixedly arranged in the middle of the rack, an upper seat is arranged above the rack, a tire blank is arranged between the lower seat and the upper seat, and a vulcanizing bladder is arranged in the middle of the upper surface of the lower seat. The upper supporting base, the lower supporting base and the ejector rods are arranged in the curing bladder, in the expansion process of the curing bladder, the multiple ejector rods are pushed outwards, the multiple ejector rods extrude different positions of the inner wall of the curing bladder to achieve the auxiliary opening effect of the curing bladder, and meanwhile after tire curing is completed, the curing bladder can be expanded, so that the curing bladder is expanded. The air pressure in the curing bladder is slowly reduced, at the moment, the multiple ejector rods can roll along the inner wall of the curing bladder, in the process, the contact position of the curing bladder and the tire is deformed and staggered to a certain degree due to extrusion of the ejector rods, and at the moment, the ejector rods can play a role in assisting separation of the curing bladder and the inner wall of the tire.

Description

Technical Field

[0001] The present invention relates to the technical field of vulcanizing machines, in particular to a vulcanizing device for tire production. Background Art

[0002] Tire vulcanization is the process of applying a certain temperature, pressure and time to the rubber compound to process it into a finished tire with specific requirements. This process requires the use of tire vulcanization equipment to shape and heat the green tire at high temperature.

[0003] The tire vulcanization process is a core step in tire manufacturing, using high temperature and high pressure to crosslink rubber molecules and form a new shape. The curing bladder in the vulcanizer is a key component, providing uniform heat medium pressure and transferring heat to the tire cavity. However, the structural design and application of existing curing bladders still face the following technical bottlenecks:

[0004] 1. Insufficient internal support in the curing bladder: Traditional curing bladders rely on internal pressure to expand and conform to the tire's inner wall during the curing process. However, because the bladder itself is made of flexible rubber, it is prone to localized uneven deformation (such as shoulder collapse and sidewall wrinkling) under high pressure, resulting in fluctuations in the tire's internal pressure distribution (±5%-8%). This instability directly causes defects such as misaligned tire carcass cord alignment and uneven rubber flow, seriously affecting the product's dynamic balance performance (NVH performance decreases by approximately 15%-20%).

[0005] 2. Low efficiency of bladder-tire demoulding: After vulcanization, the bladder and the inner wall of the tire are prone to interface adhesion due to the viscoelasticity of the rubber (peeling force of 200-500N / m 2 Existing solutions often use release agent spraying or silicone oil coating on the capsule surface, but these have two major drawbacks: first, release agent residue can form micron-sized pores, leading to an increased defective rate; second, the coating is prone to carbonization and failure under high-temperature cycles, requiring frequent downtime for maintenance.

[0006] Therefore, it is necessary to invent a kind of tire production vulcanizing device to solve the problems referred to above. Summary of the Invention

[0007] The object of the present invention is to provide a vulcanizing device for tire production to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a vulcanizing device for tire production, comprising:

[0009] A frame, wherein a lower seat is fixedly provided in the middle of the frame, an upper seat is provided above the frame, a tire blank is provided between the lower seat and the upper seat, and a curing bladder is provided in the middle of the upper surface of the lower seat;

[0010] An upper support seat and a lower support seat are respectively provided at both ends of the vulcanization bladder. A movable seat is rotatably provided on the lower surface of the upper support seat through a bearing. A movable sleeve is provided above the lower support seat. A plurality of ejector rods are provided between the movable seat and the movable sleeve. The plurality of ejector rods are respectively in contact with the inner wall of the vulcanization bladder.

[0011] The lower support seat is fixedly arranged at the middle part of the upper surface of the lower seat, and a support column is slidably provided at the middle part of the lower support seat;

[0012] An annular air guide hood is fixedly provided on the lower surface of the lower support seat, a plurality of air guide grooves are passed through the top of the air guide hood, and the plurality of air guide grooves are connected to the upper surface of the lower support seat, and a connecting air nozzle is fixedly provided in the middle of the outer wall of the air guide hood.

[0013] Preferably, a hexagonal groove is provided at the bottom end of the support column, and a hexagonal shaft is slidably inserted at the bottom end of the hexagonal groove. A support is provided below the hexagonal shaft, and the support is fixed inside the frame. A drive motor is fixed on the lower surface of the support, and the output shaft of the drive motor is connected to the bottom end of the hexagonal shaft.

[0014] Preferably, a support plate is rotatably provided at the bottom end of the support column through a bearing, a plurality of hydraulic rods are fixedly provided on the lower surface of the support, and the top ends of the plurality of hydraulic rods are connected to the lower surface of the support plate.

[0015] Preferably, a connecting plate is fixedly provided on one side of the push rod, a transmission plate is provided on one side of the connecting plate, support arms are rotatably provided at both ends of the outer side wall of the transmission plate through pins, and one end of the two support arms is movably connected to the outer side walls of the upper support seat and the lower support seat respectively through pins;

[0016] Both ends of the connecting plate are fixed with connecting screws, and both ends of the transmission plate are penetrated by through holes adapted to the connecting screws. One end of the connecting screw is provided with two nuts through threads, and the two nuts are respectively arranged on both sides of the connecting plate.

[0017] Preferably, both ends of the push rod are configured as inclined structures, and a plurality of pressing wheels are rotatably provided at the middle portion and both ends of the push rod, and the plurality of pressing wheels are in contact with the inner wall of the vulcanizing bladder.

[0018] Preferably, a groove is provided on the side of the upper support seat and the lower support seat close to each other, and both ends of the vulcanization bladder are fixed with an annular mounting seat, and the two mounting seats are respectively arranged in the grooves on one side of the upper support seat and the lower support seat.

[0019] Preferably, the inner walls of the grooves on one side of the upper support seat and the lower support seat are provided with positioning grooves, and the cross-section of the positioning grooves is set to a right-angled trapezoidal structure, and the outer sides of the two mounting seats are fixed with positioning blocks with an annular structure, the positioning blocks are arranged in the positioning grooves, and the cross-section of the positioning blocks is set to a right-angled trapezoidal structure that matches the positioning grooves, the bottom end of the outer wall of the positioning block is fixed with a protrusion with an annular structure, and both sides of the protrusion are provided with rounded corners, and the bottom end of the inner wall of the positioning groove is provided with an annular groove that matches the protrusion.

[0020] Preferably, a sealing seat with an annular structure is fixedly provided at the edge of the upper surface of the lower seat, and the sealing seat is adapted to the bottom end of the upper seat, the upper surface of the lower seat is provided with a molding groove adapted to the tire blank, and the interior of the upper seat is fixedly provided with a molding cavity adapted to the tire blank.

[0021] Preferably, lifting hydraulic cylinders are fixedly provided on both sides of the frame, and the top ends of the lifting hydraulic cylinders are connected to the outer side walls of the upper seat.

[0022] Preferably, a temperature sensor and a pressure sensor are fixedly provided inside the upper seat.

[0023] Technical effects and advantages of the present invention:

[0024] 1. The present invention provides an upper support seat, a lower support seat and a push rod inside the vulcanization bladder. When the tire is vulcanized, the interior of the vulcanization bladder is inflated to form a high-pressure environment, so that the tire blank is formed under the high-pressure environment. During the expansion of the vulcanization bladder, multiple push rods are pushed outward and squeeze different positions of the inner wall of the vulcanization bladder to assist in expanding the vulcanization bladder. At the same time, after the tire vulcanization process is completed, the air pressure inside the vulcanization bladder slowly decreases. At this time, the multiple push rods can roll along the inner wall of the vulcanization bladder. During this process, the contact position between the vulcanization bladder and the tire is deformed and dislocated to a certain extent due to the squeezing of the push rods. At this time, the push rods can assist in separating the vulcanization bladder from the inner wall of the tire. The design of the push rods not only achieves auxiliary support for the vulcanization bladder, but also facilitates demolding between the vulcanization bladder and the tire, so as to facilitate the tire vulcanization process.

[0025] 2. The present invention provides an upper support seat, a lower support seat and a mounting seat, and the two ends of the vulcanization bladder are respectively connected to the upper support seat and the lower support seat through the two mounting seats. After the vulcanization bladder is installed between the upper support seat and the lower support seat, a high-pressure space is formed inside the vulcanization bladder by injecting gas into the interior of the vulcanization bladder. At this time, the positioning block on the outside of the mounting seat can be inserted into the positioning groove on the upper support seat and the lower support seat under the action of high pressure to complete the installation of the vulcanization bladder. When the vulcanization bladder needs to be removed for replacement or maintenance, the gas in the vulcanization bladder is extracted to form a low-pressure space inside the vulcanization bladder, and the mounting seat is pressed to separate it from the upper support seat and the lower support seat. The installation and removal of the vulcanization bladder can be achieved by controlling the inflow and outflow of gas, thereby facilitating the maintenance and replacement of the vulcanization bladder and reducing the maintenance cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a front schematic diagram of the overall structure of the present invention.

[0028] Figure 3 It is a schematic diagram of the upper seat structure of the present invention.

[0029] Figure 4 It is a schematic diagram of the lower seat structure of the present invention.

[0030] Figure 5 It is a schematic cross-sectional view of the lower seat structure of the present invention.

[0031] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure in the middle.

[0032] Figure 7 It is a schematic structural diagram of the upper support seat and the lower support seat of the present invention.

[0033] Figure 8 It is a schematic diagram of the top rod structure of the present invention.

[0034] In the figure: 1. frame; 2. lower seat; 3. upper seat; 4. tire blank; 5. vulcanizing bladder; 21. sealing seat; 31. molding cavity; 32. lifting hydraulic cylinder; 501. mounting seat; 502. protrusion; 503. positioning block; 51. upper support seat; 511. positioning groove; 512. annular groove; 52. lower support seat; 521. air guide cover; 522. air guide groove; 523. connecting air nozzle; 53. movable seat; 54. movable sleeve; 55. ejector rod; 551. connecting plate; 552. transmission plate; 553. support arm; 554. connecting screw; 555. nut; 556. pressure wheel; 56. support column; 561. hexagonal groove; 562. hexagonal shaft; 563. support; 564. drive motor; 565. hydraulic rod; 566. support plate. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Example 1

[0037] like Figures 1 to 8 As shown, a vulcanization device for tire production provided by the present invention is essentially a tire vulcanizer with a support and auxiliary structure. By arranging an upper support seat 51, a lower support seat 52, and a push rod 55 inside the vulcanization bladder 5, during the vulcanization process of the tire, the vulcanization bladder 5 is inflated to form a high-pressure environment, so that the tire blank is formed under the high-pressure environment. During the expansion of the vulcanization bladder 5, multiple push rods 55 are pushed outward, and the multiple push rods 55 squeeze different positions of the inner wall of the vulcanization bladder 5 to assist in expanding the vulcanization bladder 5. At the same time, after the tire vulcanization process is completed, the air pressure inside the vulcanization bladder 5 slowly decreases. At this time, the multiple push rods 55 can roll along the inner wall of the vulcanization bladder 5. During this process, the contact point between the vulcanization bladder 5 and the tire undergoes a certain degree of deformation and dislocation due to the squeezing of the push rods 55. At this time, the push rods 55 can assist in separating the vulcanization bladder 5 from the inner wall of the tire. The design of the push rods 55 not only provides auxiliary support for the vulcanization bladder 5, but also facilitates demolding between the vulcanization bladder 5 and the tire, thereby facilitating the tire vulcanization process.

[0038] In terms of specific structural installation, the structural body can be constructed according to the inventive concept of this embodiment, and no special limitation is made in this embodiment.

[0039] In this embodiment, a vulcanizing device for tire production includes:

[0040] A frame 1, a lower seat 2 is fixedly provided in the middle of the frame 1, an upper seat 3 is provided above the frame 1, a tire blank 4 is provided between the lower seat 2 and the upper seat 3, and a curing bladder 5 is provided in the middle of the upper surface of the lower seat 2;

[0041] An upper support seat 51 and a lower support seat 52 are respectively provided at both ends of the vulcanization bladder 5. A movable seat 53 is rotatably provided on the lower surface of the upper support seat 51 via a bearing. A movable sleeve 54 is provided above the lower support seat 52. A plurality of ejector rods 55 are provided between the movable seat 53 and the movable sleeve 54. The plurality of ejector rods 55 are respectively in contact with the inner wall of the vulcanization bladder 5.

[0042] The lower support seat 52 is fixedly arranged in the middle of the upper surface of the lower seat 2, and a support column 56 is slidably provided in the middle of the lower support seat 52;

[0043] An annular air guide hood 521 is fixedly provided on the lower surface of the lower support seat 52. A plurality of air guide grooves 522 are formed through the top of the air guide hood 521, and the plurality of air guide grooves 522 are connected to the upper surface of the lower support seat 52. A connecting air nozzle 523 is fixedly provided in the middle of the outer wall of the air guide hood 521. The connecting air nozzle 523 can be connected to an air pump to inject and extract gas from the curing bladder 5.

[0044] A hexagonal slot 561 is formed at the bottom end of the support column 56. A hexagonal shaft 562 is slidably inserted into the bottom end of the hexagonal slot 561. A support 563 is provided below the hexagonal shaft 562 and fixedly mounted inside the frame 1. A drive motor 564 is fixedly mounted on the lower surface of the support 563, and the output shaft of the drive motor 564 is connected to the bottom end of the hexagonal shaft 562.

[0045] The bottom end of the support column 56 is rotatably provided with a support plate 566 via a bearing. A plurality of hydraulic rods 565 are fixedly provided on the lower surface of the support 563, and the top ends of the plurality of hydraulic rods 565 are connected to the lower surface of the support plate 566.

[0046] A connecting plate 551 is fixedly provided on one side of the push rod 55, and a transmission plate 552 is provided on one side of the connecting plate 551. Support arms 553 are rotatably provided at both ends of the outer wall of the transmission plate 552 via pins, and one end of the two support arms 553 is movably connected to the outer walls of the upper support seat 51 and the lower support seat 52 respectively via pins.

[0047] Connecting screws 554 are fixedly provided at both ends of the connecting plate 551. Through holes adapted to the connecting screws 554 are provided at both ends of the transmission plate 552. Two nuts 555 are threadedly provided at one end of the connecting screws 554. The two nuts 555 are respectively provided on both sides of the connecting plate 551. The connecting screws 554 and the nuts 555 cooperate to control the distance between the transmission plate 552 and the connecting plate 551.

[0048] Both ends of the push rod 55 are configured as inclined structures. A plurality of rotatable pressing wheels 556 are provided in the middle and at both ends of the push rod 55. The plurality of pressing wheels 556 are in contact with the inner wall of the curing bladder 5. The pressing wheels 556 are used to squeeze the inner wall of the curing bladder 5 to deform it to a certain extent and separate it from the tire.

[0049] A groove is provided on the side of the upper support seat 51 and the lower support seat 52 close to each other. An annular mounting seat 501 is fixed on both ends of the vulcanization bladder 5, and the two mounting seats 501 are respectively provided in the grooves on one side of the upper support seat 51 and the lower support seat 52;

[0050] The inner wall of the groove on one side of the upper support seat 51 and the lower support seat 52 is provided with a positioning groove 511, and the cross-section of the positioning groove 511 is set to a right-angled trapezoidal structure. The outer sides of the two mounting seats 501 are fixed with a positioning block 503 of an annular structure, the positioning block 503 is arranged in the positioning groove 511, and the cross-section of the positioning block 503 is set to a right-angled trapezoidal structure adapted to the positioning groove 511. The bottom end of the outer wall of the positioning block 503 is fixed with a protrusion 502 of an annular structure, and both sides of the protrusion 502 are provided with rounded corners. The bottom end of the inner wall of the positioning groove 511 is provided with an annular groove 512 adapted to the protrusion 502. The positioning block 503 is kept limited in the positioning groove 511 under the action of the protrusion 502 and the annular groove 512. Even after shrinkage, the vulcanization bladder 5 can still maintain the installation effect between the upper support seat 51 and the lower support seat 52;

[0051] A sealing seat 21 of an annular structure is fixedly provided at the edge of the upper surface of the lower seat 2, and the sealing seat 21 is adapted to the bottom end of the upper seat 3. A molding groove adapted to the tire blank 4 is provided on the upper surface of the lower seat 2, and a molding cavity 31 adapted to the tire blank 4 is fixedly provided inside the upper seat 3. Both the molding cavity 31 and the molding groove are provided with protrusions adapted to the texture of the outer surface of the tire to ensure that the texture is formed on the surface of the tire after molding;

[0052] A lifting hydraulic cylinder 32 is fixed on both sides of the frame 1, and the top of the lifting hydraulic cylinder 32 is connected to the outer wall of the upper seat 3. The lifting hydraulic cylinder 32 is used to drive the upper seat 3 to move up and down;

[0053] A temperature sensor and a pressure sensor are fixedly provided inside the upper seat 3 . The temperature sensor and the pressure sensor are used to detect the temperature and pressure during the tire vulcanization process to ensure the vulcanization environment of the tire.

[0054] When using a vulcanization device for tire production according to the present embodiment, the device is in a stopped state. In this state, the vulcanization bladder 5 is in a retracted state, and the upper support seat 51 and the lower support seat 52 are in a state of being away from each other. At this time, the tire blank 4 can be sleeved on the outside of the vulcanization bladder 5, and the bottom end of the tire blank 4 is placed in the molding groove on the upper surface of the lower seat 2. At this time, the upper seat 3 is driven downward by the lifting hydraulic cylinder 32, and the upper seat 3 drives the molding cavity 31 to move downward. The molding cavity 31 and the molding groove can wrap the tire blank 4, and the loading of the tire blank 4 can be completed at this time;

[0055] When the tire blank 4 is vulcanized, high-temperature and high-pressure gas is injected into the air guide hood 521 through the connecting air nozzle 523. The high-temperature and high-pressure gas enters the interior of the vulcanization bladder 5 through the air guide hood 521 and the air guide groove 522, causing the vulcanization bladder 5 to expand. At the same time, the hydraulic rod 565 is controlled to drive the support plate 566 to move downward, and the support plate 566 drives the support column 56 to move downward. The support column 56 drives the upper support seat 51 to move downward, so that the upper support seat 51 and the lower support seat 52 are close to each other. At this time, the upper support seat 51 and the lower support seat 52 respectively drive the corresponding support arm 553 to move, so that the support arm 553 rotates around the pin shaft at its end, and the support arm 553 drives the support arm 553 to rotate during the rotation. The transmission plate 552 and the connecting plate 551 move, so that the connecting plate 551 drives the push rod 55 to move outward, and the multiple push rods 55 respectively expand multiple positions of the inner wall of the curing bladder 5 outward to play the role of auxiliary support of the curing bladder 5. When the curing bladder 5 is fully expanded, the fully expanded curing bladder 5 expands the tire blank 4, and the tire blank 4 is formed in the molding groove and the molding cavity 31. It should be noted that the temperature control component and the curing agent addition component required for the tire vulcanization process are provided in the upper seat 3 and the molding cavity 31. They all adopt corresponding structures in the prior art and are not related to the innovative part of this embodiment. They are only used to ensure the smooth progress of the tire vulcanization operation, so they are not described here.

[0056] After the tire is vulcanized and formed, the gas inside the vulcanization bladder 5 is released through the connecting air nozzle 523, so that the air pressure inside the vulcanization bladder 5 is reduced. At this time, the vulcanization bladder 5 shrinks and deforms under the action of its own elastic potential energy. At this time, the outer surface of the vulcanization bladder 5 is partially separated from the inner wall of the formed tire. At this time, the gas is stopped and the vulcanization bladder 5 stops deforming. At this time, the driving motor 564 is controlled to drive the hexagonal shaft 562 to rotate. The hexagonal shaft 562 drives the support column 56 to rotate through the hexagonal groove 561. The support column 56 drives the transmission plate 552 and the connecting plate 551 to rotate through the support arm 553. The connecting plate 551 drives the push rod 55 to rotate, so that the multiple pressure wheels 556 outside the push rod 55 roll along the inner wall of the vulcanization bladder 5. The pressure wheels 556 squeeze the inner wall of the vulcanization bladder 5 during the rolling process. The part of the vulcanization bladder 5 squeezed by the pressure wheels 556 is deformed. During the deformation process, the vulcanization bladder 5 and the inner wall of the formed tire are relative to each other. The upper support seat 51 is moved upwards, and the upper support seat 51 drives the support arm 553 and the top of the vulcanization bladder 5 to move upwards, so that the shrunken vulcanization bladder 5 is pulled apart in the vertical direction, so that the surface of the vulcanization bladder 5 can still remain taut after shrinkage. At the same time, the support arm 553 drives the push rod 55 to move inwards. At this time, the push rod 55 will not limit the shrinkage of the vulcanization bladder 5. In this process, the lifting hydraulic cylinder 32 is controlled to drive the upper seat 3 to move upwards, so that the molding cavity 31 is separated from the molded tire. At this time, the tire can be demoulded to facilitate tire unloading.

[0057] Example 2

[0058] This embodiment is a supplement to the previous embodiment. Considering that the curing bladder 5 needs to be replaced and maintained after a certain period of use, it is inconvenient to remove the curing bladder 5 from the upper support seat 51 and the lower support seat 52 during the replacement process, and it is inconvenient to fix the replaced curing bladder 5;

[0059] By setting the upper support seat 51, the lower support seat 52 and the mounting seat 501, the two ends of the vulcanization bladder 5 are connected to the upper support seat 51 and the lower support seat 52 respectively through the two mounting seats 501, and after the vulcanization bladder 5 is installed between the upper support seat 51 and the lower support seat 52, gas is injected into the vulcanization bladder 5 to form a high-pressure space inside. At this time, the positioning block 503 on the outside of the mounting seat 501 can be inserted into the positioning groove 511 on the upper support seat 51 and the lower support seat 52 under the action of high pressure, and the installation of the vulcanization bladder 5 is completed. When the vulcanization bladder 5 needs to be removed for replacement or maintenance, the gas in the vulcanization bladder 5 is extracted to form a low-pressure space inside, and the mounting seat 501 can be pressed to separate it from the upper support seat 51 and the lower support seat 52. The installation and removal of the vulcanization bladder 5 can be achieved by controlling the inflow and outflow of gas, thereby facilitating the maintenance and replacement of the vulcanization bladder 5 and reducing the maintenance cost of the device.

[0060] When replacing the vulcanization bladder 5, first adjust the upper support seat 51 to a position away from the lower support seat 52, and control the position of the upper support seat 51, while discharging the gas in the vulcanization bladder 5, so that the vulcanization bladder 5 is in a contracted state but its surface is not in a taut state. At this time, press the edges of the mounting seats 501 at both ends of the vulcanization bladder 5, so that the mounting seats 501 are deformed inward. When the mounting seats 501 are deformed, the positioning blocks 503 on the outside are separated from the positioning grooves 511, and the protrusions 502 are separated from the annular grooves 512. At this time, the mounting seats 501 can be removed from the grooves. At this time, adjust the angle of the mounting seat 501 so that it is tilted relative to the upper support seat 51 and the lower support seat 52, and then the mounting seat 501 can be removed, thereby realizing the removal of the vulcanization bladder 5.

[0061] When installing the vulcanization bladder 5, the entire vulcanization bladder 5 is placed on the outside of the support column 56, and the mounting seats 501 at both ends of the vulcanization bladder 5 are respectively inserted into the grooves on one side of the upper support seat 51 and the lower support seat 52. The mounting seats 501 are pressed so that the positioning blocks 503 on the outside of the mounting seats 501 are inserted into the positioning grooves 511. Then, high-pressure air is injected into the vulcanization bladder 5 to form a high-pressure space inside the vulcanization bladder 5. At this time, the vulcanization bladder 5 expands outward, and the mounting seats 501 expand outward under the action of high pressure. The positioning block 503 on the outside of the mounting seat 501 is completely inserted into the positioning groove 511, and the protrusion 502 on the outside of the positioning block 503 is completely inserted into the annular groove 512. At this time, the vulcanization bladder 5 is installed. At this time, the gas inside the vulcanization bladder 5 can be discharged. In this state, the positioning block 503 is kept limited in the positioning groove 511 under the action of the protrusion 502 and the annular groove 512. Even after shrinkage, the vulcanization bladder 5 can still maintain the installation effect between the upper support seat 51 and the lower support seat 52.

[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vulcanizing device for tire production, characterized in that: include: A frame (1), wherein a lower seat (2) is fixedly provided in the middle of the frame (1), an upper seat (3) is provided above the frame (1), a tire blank (4) is provided between the lower seat (2) and the upper seat (3), and a vulcanizing bladder (5) is provided in the middle of the upper surface of the lower seat (2); An upper support seat (51) and a lower support seat (52) are respectively provided at both ends of the vulcanization bladder (5); a movable seat (53) is rotatably provided on the lower surface of the upper support seat (51) via a bearing; a movable sleeve (54) is provided above the lower support seat (52); a plurality of push rods (55) are provided between the movable seat (53) and the movable sleeve (54); and the plurality of push rods (55) are respectively fitted with the inner wall of the vulcanization bladder (5); The lower support seat (52) is fixedly arranged at the middle part of the upper surface of the lower seat (2), and a support column (56) is slidably provided at the middle part of the lower support seat (52); An annular air guide cover (521) is fixedly provided on the lower surface of the lower support seat (52), a plurality of air guide grooves (522) are provided through the top of the air guide cover (521), and the plurality of air guide grooves (522) are all connected to the upper surface of the lower support seat (52), and a connecting air nozzle (523) is fixedly provided in the middle of the outer wall of the air guide cover (521).

2. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: The bottom end of the support column (56) is provided with a hexagonal groove (561), the bottom end of the hexagonal groove (561) is slidably plugged with a hexagonal shaft (562), a support (563) is provided below the hexagonal shaft (562), and the support (563) is fixedly arranged inside the frame (1), a driving motor (564) is fixedly arranged on the lower surface of the support (563), and the output shaft of the driving motor (564) is connected to the bottom end of the hexagonal shaft (562).

3. A vulcanizing device for tire production according to claim 2, characterized in that: Also includes: The bottom end of the support column (56) is rotatably provided with a support plate (566) through a bearing, and a plurality of hydraulic rods (565) are fixedly provided on the lower surface of the support (563), and the top ends of the plurality of hydraulic rods (565) are connected to the lower surface of the support plate (566).

4. A vulcanizing device for tire production according to claim 3, characterized in that: Also includes: A connecting plate (551) is fixedly provided on one side of the push rod (55), a transmission plate (552) is provided on one side of the connecting plate (551), support arms (553) are rotatably provided at both ends of the outer wall of the transmission plate (552) via pins, and one end of the two support arms (553) is movably connected to the outer walls of the upper support seat (51) and the lower support seat (52) via pins respectively; Both ends of the connecting plate (551) are fixed with connecting screws (554), and both ends of the transmission plate (552) are penetrated by through holes adapted to the connecting screws (554). One end of the connecting screw (554) is provided with two nuts (555) through threads, and the two nuts (555) are respectively provided on both sides of the connecting plate (551).

5. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: Both ends of the push rod (55) are configured as inclined structures. A plurality of pressing wheels (556) are rotatably provided at the middle and both ends of the push rod (55), and the plurality of pressing wheels (556) are all in contact with the inner wall of the vulcanizing bladder (5).

6. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: A groove is provided on one side of the upper support seat (51) and the lower support seat (52) close to each other, and mounting seats (501) with an annular structure are fixedly provided at both ends of the vulcanization bladder (5), and the two mounting seats (501) are respectively arranged in the grooves on one side of the upper support seat (51) and the lower support seat (52).

7. A vulcanizing device for tire production according to claim 6, characterized in that: Also includes: The inner wall of the groove on one side of the upper support seat (51) and the lower support seat (52) is provided with a positioning groove (511), and the cross section of the positioning groove (511) is set as a right-angled trapezoidal structure. The outer sides of the two mounting seats (501) are fixed with a positioning block (503) with an annular structure. The positioning block (503) is arranged in the positioning groove (511), and the cross section of the positioning block (503) is set as a right-angled trapezoidal structure that matches the positioning groove (511). The bottom end of the outer wall of the positioning block (503) is fixed with a protrusion (502) with an annular structure, and both sides of the protrusion (502) are provided with rounded corners. The bottom end of the inner wall of the positioning groove (511) is provided with an annular groove (512) that matches the protrusion (502).

8. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: A sealing seat (21) of an annular structure is fixedly provided at the edge of the upper surface of the lower seat (2), and the sealing seat (21) is adapted to the bottom end of the upper seat (3). A molding groove adapted to the tire blank (4) is provided on the upper surface of the lower seat (2), and a molding cavity (31) adapted to the tire blank (4) is fixedly provided inside the upper seat (3).

9. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: A lifting hydraulic cylinder (32) is fixedly provided on both sides of the frame (1), and the top end of the lifting hydraulic cylinder (32) is connected to the outer side wall of the upper seat (3).

10. A vulcanizing device for tire production according to claim 1, characterized in that: Also includes: A temperature sensor and a pressure sensor are fixedly provided inside the upper seat (3).

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