Central mechanism and tire vulcanization apparatus
By eliminating the heating components and optimizing gas flow using a large-size rotating turbine and cylinder head structure, the problems of low gas flow rate and heat transfer efficiency in vulcanization equipment were solved, achieving uniform and rapid heating and efficient vulcanization within the vulcanization capsule.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SINO ARP TIRES EQUIP TECH (SUZHOU) CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-06-05
Smart Images
Figure CN122143388A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tire manufacturing technology, and in particular to a central mechanism and tire vulcanization equipment. Background Technology
[0002] The tire vulcanization process involves placing unvulcanized tire blanks in a vulcanization mold and, under high temperature and pressure, causing the linear polymers within the plastic rubber to undergo a cross-linking reaction through a chemical reaction, generating a network of polymer materials. This process macroscopically manifests as curing, thereby enabling the tire to acquire the required physical properties and dimensional stability.
[0003] Conventional vulcanizing equipment includes a vulcanizing mold and a central mechanism. The central mechanism includes a vulcanizing bladder. High-temperature, high-pressure gas is introduced into the vulcanizing bladder, causing it to expand outwards. This presses the tire blank against the vulcanizing mold and holds it for a certain period, allowing the tire blank to fully vulcanize. To ensure uniform heating of the tire during vulcanization, a fan and heating components are installed inside the vulcanizing bladder. The fan is connected to a motor via a rotating tube. The motor drives the rotating tube to rotate, which in turn drives the fan to rotate at high speed, causing the vulcanizing medium inside the bladder to circulate and heat the bladder.
[0004] However, due to the small space inside the vulcanizing capsule, the heating components would take up too much space. Therefore, only a small fan could be used to drive the gas flow, which reduced the gas flow rate inside the vulcanizing capsule. This resulted in the inability to quickly and evenly transfer heat to all parts of the vulcanizing capsule, affecting the vulcanization efficiency. Summary of the Invention
[0005] The purpose of this invention is to provide a central mechanism and tire vulcanizing equipment that eliminates the heating component and uses a larger rotating turbine to generate more heat and greater wind speed, thereby increasing the gas flow rate and heat transfer efficiency inside the vulcanizing capsule and improving vulcanization efficiency.
[0006] To achieve this objective, the present invention adopts the following technical solution: A central institution, comprising: The capsule assembly includes a retaining ring seat and a vulcanized capsule, the vulcanized capsule being disposed on the retaining ring seat; The cylinder head is disposed on the fixed ring seat and located inside the vulcanizing capsule. The top of the cylinder head is provided with an air inlet, and the side wall of the cylinder head is provided with a plurality of air outlets spaced apart along the circumference. A rotary turbine is rotatably disposed within the cylinder head to drive gas from the intake port to the outlet port. The rotary turbine and the cylinder head rub and pressurize the gas to heat it.
[0007] Preferably, the cylinder head includes an annular section, and an annular cavity is formed between the annular section and the fixed ring seat. The annular section is arranged around the outer periphery of the rotating turbine, and a plurality of air outlets are arranged on the outer side of the annular section. The gas flows circumferentially within the annular cavity.
[0008] Preferably, the circulation section includes an inner ring wall and an outer ring wall, the outer ring wall is disposed around the inner ring wall, and there is an annular center line between the inner ring wall and the outer ring wall. The air outlet is disposed on the outer ring wall, and the air outlet includes a first air outlet section, which extends to the inner side of the outer ring wall to communicate with the circulation cavity. The axis of the first air outlet section is tangent to the annular center line.
[0009] Preferably, the air outlet further includes a second air outlet section extending to the outer side of the outer ring wall, the second air outlet section communicating with the first air outlet section, and the angle between the axis of the second air outlet section and the outer ring wall being α, where α ≤ 30°.
[0010] Preferably, a heating space is formed between the cylinder head and the fixed ring seat. The heating space includes a drainage cavity, a connecting cavity, and a circulating cavity that are connected sequentially from the inside to the outside. The flow area of the connecting cavity is smaller than the flow area of the circulating cavity.
[0011] Preferably, the rotary turbine includes a support portion and a plurality of blades disposed on the outer periphery of the support portion. The support portion is rotatably disposed within the drainage cavity. The blades include blade tails, and a portion of the blade tails extends into the communicating cavity.
[0012] Preferably, the blade further includes a blade tip and a connecting outer edge, the connecting outer edge being located between the blade tip and the blade tail and spaced apart from the support portion, and the width of the blade gradually decreases from the blade tip along the connecting outer edge toward the blade tail.
[0013] Preferably, a plurality of guide plates are arranged circumferentially within the communicating cavity, the guide plates are spaced apart from the cylinder head, and a guide channel is formed between two adjacent guide plates.
[0014] Preferably, the guide plate is inclined and, along the direction from the inside out, the guide plate is inclined in the direction of gas flow within the communicating cavity.
[0015] A tire vulcanizing apparatus includes the aforementioned central mechanism and a vulcanizing mold arranged around the bladder assembly.
[0016] The beneficial effects of this invention are: This invention provides a central mechanism and a tire vulcanizing device. In the central mechanism, a fixed ring seat is used to fix the relative positions between the vulcanizing bladder, the cylinder head, and the rotary turbine. When the vulcanizing bladder is filled with gas and expands, the rotary turbine rotates at high speed, driving the gas in the cylinder head to flow from the inlet to the outlet. As the gas flows through the cylinder head and the rotary turbine, it is subjected to friction and compression, causing the gas temperature to rise. The gas flows from the outlet to the inner wall of the vulcanizing bladder, thereby delivering the heated gas to various parts of the vulcanizing bladder. At the same time, the negative pressure at the inlet draws in the gas from the vulcanizing bladder, thus circulating the gas inside the vulcanizing bladder and causing the vulcanizing bladder to heat up evenly and rapidly.
[0017] The central mechanism eliminates the heating components, allowing the use of larger rotating turbines to generate more heat and higher wind speeds. This increases the gas flow rate and heat transfer efficiency within the vulcanizing capsule, thereby improving vulcanization efficiency. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view of the central mechanism provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the cylinder head and rotary turbine provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the cylinder head structure provided in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the cylinder head provided in an embodiment of the present invention; Figure 5 yes Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the structure of the rotating turbine provided in an embodiment of the present invention.
[0019] In the picture: 100. Circular centerline; 1. Capsule assembly; 11. Vulcanized capsule; 12. Fixing ring seat; 2. Cylinder head; 21. Inlet; 22. Outlet; 221. First outlet section; 222. Second outlet section; 223. Arc-shaped section; 23. Circulating section; 231. Outer ring wall; 232. Inner ring wall; 24. Drainage chamber; 25. Connecting chamber; 26. Circulating chamber; 27. Guide plate; 3. Rotating turbine; 31. Support; 32. Blade; 321. Blade tip; 322. Blade tail; 323. Connecting outer edge. Detailed Implementation
[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0021] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection via an intermediate medium; or the internal communication of two components or the interaction between two components. As examples, a direct connection refers to two parts or components being connected together without the need for an intermediate medium, while an indirect connection refers to two parts or components each being connected to at least one intermediate medium, with the connection achieved through the intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0022] In the description of this invention, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" of another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" of the first feature and the second feature include the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.
[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0024] This embodiment provides a tire vulcanizing device, such as... Figure 1 As shown, the tire vulcanizing equipment includes a vulcanizing mold and a central mechanism. The central mechanism includes a capsule assembly 1, which includes a fixing ring seat 12 and a vulcanizing capsule 11. The vulcanizing capsule 11 is disposed on the fixing ring seat 12, and the vulcanizing mold surrounds the capsule assembly 1. The fixing ring seat 12 can move axially relative to the vulcanizing mold to adjust the relative position between the vulcanizing capsule 11 and the vulcanizing mold. By introducing high-temperature, high-pressure gas into the vulcanizing capsule 11, the vulcanizing capsule 11 expands outward, thereby pressing the tire blank against the vulcanizing mold and holding it for a certain period of time, allowing the tire blank to be fully vulcanized.
[0025] In this embodiment, the capsule assembly 1 further includes an upper chuck, a lower chuck, and a central shaft. The upper chuck is sealed to the upper end of the vulcanizing capsule 11, and the lower chuck is sealed to the lower end of the vulcanizing capsule 11. The central shaft passes through the lower chuck and is connected to the upper chuck. By moving the central shaft, the distance between the upper and lower chucks can be adjusted to ensure that the vulcanizing capsule 11 is adapted to the shape of the tire.
[0026] In existing technologies, to ensure uniform heating of tires during vulcanization, the vulcanizing bladder is equipped with a baffle and a heating element. The baffle rotates, causing the vulcanizing medium inside the bladder to circulate and heat the bladder. However, due to the limited space inside the vulcanizing bladder, the heating element takes up too much space, necessitating the use of a small fan to drive the gas flow. This reduces the gas flow rate within the bladder, making it difficult to quickly and evenly distribute heat throughout the bladder and affecting vulcanization efficiency.
[0027] like Figures 1-3 As shown, to solve the above problems, the central mechanism provided in this embodiment also includes a cylinder head 2 and a rotary turbine 3. The cylinder head 2 is disposed on the fixed ring seat 12 and located inside the vulcanizing capsule 11. An air inlet 21 is provided on the top of the cylinder head 2, and multiple air outlets 22 are provided at intervals along the circumference of the side wall of the cylinder head 2. The rotary turbine 3 is rotatably disposed inside the cylinder head 2 to drive the gas to flow from the air inlet 21 to the air outlet 22. The rotary turbine 3 and the cylinder head 2 rub and pressurize the gas to heat the gas.
[0028] In this central mechanism, the fixed ring seat 12 is used to fix the relative positions between the vulcanizing capsule 11, the cylinder head 2, and the rotating turbine 3. When the vulcanizing capsule 11 is filled with gas and expands, the rotating turbine 3 rotates at high speed, driving the gas in the cylinder head 2 to flow from the inlet 21 to the outlet 22. When the gas flows through the cylinder head 2 and the rotating turbine 3, it will be rubbed and compressed, causing the gas temperature to rise. The gas flows from the outlet 22 to the inner wall of the vulcanizing capsule 11, thereby delivering the heated gas to all parts of the vulcanizing capsule 11. At the same time, the negative pressure of the inlet 21 draws in the gas in the vulcanizing capsule 11, thereby making the gas in the vulcanizing capsule 11 circulate and causing the vulcanizing capsule 11 to heat up evenly and quickly.
[0029] The central mechanism eliminates the heating components, eliminating the need to consider complex wiring methods, reducing the risk of leakage, simplifying the structure, and allowing the use of a larger rotating turbine 3 to generate more heat and higher wind speed, thereby increasing the gas flow rate and heat transfer efficiency within the vulcanizing capsule 11 and improving vulcanization efficiency.
[0030] In this embodiment, the central mechanism also includes a drive motor, which is connected to the rotating tube. The drive motor can drive the rotating turbine 3 to rotate at high speed through the rotating tube, thereby rapidly heating the gas passing through the rotating turbine 3 and the cylinder head 2.
[0031] The drive motor is a gas-suspended permanent magnet motor with a rotational speed of 30,000 r / min or higher, used to achieve high-speed operation and ensure that the rotating turbine 3 can reach high speed. In some embodiments, the drive motor can also be other rotating motors, which, together with a gear set, drive the rotating turbine 3 to rotate at high speed.
[0032] like Figures 2-4 As shown, in this embodiment, a heating space is formed between the cylinder head 2 and the fixed ring seat 12. The heating space includes a drainage cavity 24, a connecting cavity 25 and an aeration cavity 26 connected sequentially from the inside to the outside. The flow area of the connecting cavity 25 is smaller than the flow area of the aeration cavity 26. Driven by the rotary turbine 3, the gas passes through the intake port 21 and then sequentially through the guide chamber 24, the connecting chamber 25, and the annular chamber 26, and is discharged through the outlet 22 on the outside of the annular chamber 26. During this process, the flow area of the guide chamber 24 is relatively large, and the gas is compressed when it enters the connecting chamber 25. At the same time, the high pressure also increases the friction between the gas and the cylinder head 2 and the rotary turbine 3, thereby increasing the gas heating rate. After the high-pressure gas enters the annular chamber 26, it will squeeze the gas in the annular chamber 26, causing the gas in the annular chamber 26 to be ejected at high speed through the outlet 22, so that the heat is quickly transferred to the vulcanizing capsule 11, ensuring the heating rate of the vulcanizing capsule 11. When the vulcanizing capsule 11 reaches the preset temperature, the efficient heat transfer can also ensure the temperature stability of the vulcanizing capsule 11.
[0033] It is understandable that during the process of the rotating turbine 3 driving the gas into the connecting cavity 25, the gas will flow along the tangential direction of the outer edge of the rotating turbine 3 after leaving the rotating turbine 3. The gas flows at an angle relative to the radial direction of the rotating turbine 3, so the gas will flow along the annular cavity 26 after entering it. In this embodiment, the cylinder head 2 includes an annular section 23, which forms an annular cavity 26 with the fixed ring seat 12. The annular section 23 is arranged around the outer periphery of the rotating turbine 3, and multiple air outlets 22 are arranged on the outer side of the annular section 23. The gas flows circumferentially within the annular cavity 26, avoiding direct impact of the gas on the sidewall of the annular cavity 26, thus preventing velocity loss.
[0034] like Figure 1 and Figure 6 As shown, it is worth noting that, along the top-down direction, if the rotating turbine 3 rotates clockwise (X direction in the figure), the flow direction of the gas in the connecting cavity 25 shifts from radial to clockwise, and the gas flows clockwise in the circulation cavity 26; if the rotating turbine 3 rotates counterclockwise (Y direction in the figure), the flow direction of the gas in the connecting cavity 25 shifts from radial to counterclockwise, and the gas flows clockwise in the circulation cavity 26.
[0035] In this embodiment, the example is the clockwise rotation of the rotating turbine 3 in a top-down direction.
[0036] In this embodiment, the circulating section 23 includes an inner annular wall 232 and an outer annular wall 231. The outer annular wall 231 is arranged around the inner annular wall 232. When the gas flows in the circulating cavity 26, it will rotate under the guiding effect of the outer annular wall 231. During this process, the gas will rub against the cylinder head 2 and its temperature will rise. It is understood that when the gas flows in the circulating cavity 26, if the gas flow direction changes significantly during the process of being discharged through the outlet 22 under the influence of pressure, it will lead to a loss of gas flow velocity.
[0037] like Figure 4 and Figure 5 As shown, to solve the above problem, there is an annular center line 100 between the inner annular wall 232 and the outer annular wall 231. The air outlet 22 is disposed on the outer annular wall 231. The air outlet 22 includes a first air outlet section 221, which extends to the inner side of the outer annular wall 231 to communicate with the circulation cavity 26. The axis of the first air outlet section 221 is tangent to the annular center line 100.
[0038] When the gas in the circulation cavity 26 is in circular motion, it will impact the outer ring wall 231 along the direction of the annular center line 100. Since the axis of the first outlet section 221 is tangent to the annular center line 100, some gas will directly enter the first outlet section 221. During this process, the flow direction of the gas does not change, which ensures that the gas can be discharged through the outlet 22 without losing speed, so that heat can be quickly transferred to a more distant location, thereby heating and heat preservation of the vulcanizing capsule 11.
[0039] In this embodiment, the air outlet 22 further includes a second air outlet section 222, which extends to the outer side of the outer ring wall 231 and is connected to the first air outlet section 221. The angle between the axis of the second air outlet section 222 and the outer ring wall 231 is α, and α ≤ 30°. This structure allows the flow direction of the gas discharged through the air outlet 22 to be closer to the circumferential tangent of the vulcanizing capsule 11. The gas discharged through the multiple air outlets 22 on the cylinder head 2 can agitate the gas inside the vulcanizing capsule 11, causing the gas inside the vulcanizing capsule 11 to flow circumferentially. This can improve the temperature uniformity inside the vulcanizing capsule 11 and avoid the gas directly impacting the inner wall of the vulcanizing capsule 11, which would cause velocity loss. This is beneficial to the smoothness of gas circulation inside and outside the cylinder head 2, making it easier for the gas to flow into the cylinder head 2 through the air inlet 21. It also reduces the resistance when the rotating turbine 3 drives the gas flow and improves energy efficiency.
[0040] Preferably, the angle α between the axis of the second air outlet section 222 and the outer ring wall 231 should not be too small. If it is too small, the angle between the second air outlet section 222 and the outer ring wall 231 will be too small, which will easily result in a smaller thickness and weaker strength at the outer end of the outer ring wall 231 at the air outlet 22. Under the impact of gas, it will easily generate debris, which can easily cause excessive wear inside the central mechanism and scratch the vulcanizing capsule 11, affecting the service life of the vulcanizing capsule 11. Specifically, the angle α between the axis of the second air outlet section 222 and the outer ring wall 231 should not be less than 5°. That is to say, the angle α between the axis of the second air outlet section 222 and the outer ring wall 231 can be 5°, 10°, 15°, 20°, 25° or 30°.
[0041] Furthermore, the air outlet 22 also includes an arc-shaped segment 223, which is disposed between the first air outlet segment 221 and the second air outlet segment 222. One end of the arc-shaped segment 223 is connected to the first air outlet segment 221, and the other end is connected to the second air outlet segment 222. When the gas flows from the first air outlet segment 221 to the second air outlet segment 222, it passes through the arc-shaped segment 223. The arc-shaped segment 223 can smoothly change the flow direction of the gas and also generate friction with the gas to achieve a friction heating effect, further increasing the temperature of the gas discharged from the cylinder head 2.
[0042] like Figure 2 As shown, in this embodiment, multiple guide plates 27 are arranged circumferentially within the connecting cavity 25. The guide plates 27 are spaced apart from the cylinder head 2, and a flow channel is formed between two adjacent guide plates 27. The guide plates 27 can further reduce the flow area within the connecting cavity 25, thereby improving the compression effect of the rotating turbine 3 and the cylinder head 2 on the gas and increasing the gas heating rate.
[0043] Preferably, the guide plate 27 is inclined and tilted in the direction of gas flow in the connecting cavity 25 from the inside out. That is, in the direction from top to bottom, the guide plate 27 is tilted in a clockwise direction. This structure can ensure that the gas flows circumferentially in the circulation cavity 26 after passing through the connecting cavity 25, avoiding the gas from directly impacting the side wall of the circulation cavity 26 and causing flow velocity loss, which would affect the flow velocity of the gas after passing through the outlet 22.
[0044] like Figure 2 and Figure 6 As shown, in this embodiment, the rotary turbine 3 includes a support portion 31 and a plurality of blades 32 disposed on the outer periphery of the support portion 31. The support portion 31 is rotatably disposed within the flow-inducing cavity 24. The blades 32 include blade tails 322, a portion of which extends into the connecting cavity 25. Because a portion of the blade tails 322 extends into the connecting cavity 25, when the rotary turbine 3 rotates, the gas flows along the surface of the blades 32 and enters the connecting cavity 25 accordingly, avoiding airflow impacting the inner wall of the flow-inducing cavity 24, increasing the degree of gas compression and friction, and increasing the gas heating rate.
[0045] The blade 32 includes a blade tip 321 and a connecting outer edge 323. The connecting outer edge 323 is located between the blade tip 321 and the blade tail 322 and is spaced apart from the support 31. From the blade tip 321 along the connecting outer edge 323 towards the blade tail 322, the width of the blade 32 gradually decreases. When the rotary turbine 3 rotates, the gas flows from the blade tip 321 along the connecting outer edge 323 towards the blade tail 322. Along the direction of gas flow, the air duct formed by adjacent blades 32 becomes wider and shallower, which can gradually reduce the binding force on the flowing air and improve the rotary turbine 3's ability to change the direction of airflow.
[0046] like Figure 2 As shown, in this embodiment, along the axial direction of the rotary turbine 3, the distance between the blade tip 321 and the air inlet 21 is L1, and the distance between the blade tail 322 and the air inlet 21 is L2. The height of the blade 32 is L2-L1, which refers to the height of the space that the blade 32 can directly disturb in the vertical direction. L1 / L2 refers to the proportion of the space that the blade 32 cannot directly disturb to the space in the drainage cavity 24. The smaller this proportion, the stronger the ability of the rotary turbine 3 to drive the gas flow, the greater the negative pressure at the air inlet 21, and the better the gas circulation in the vulcanizing capsule 11.
[0047] It is worth noting that L1 / L2 is not necessarily better the smaller it is. If L1 / L2 is too small, it means that the rotating turbine 3 is very tall. This makes the air duct formed by the two adjacent blades 32 of the rotating turbine 3 nearly vertical, which makes it difficult to drive the gas to diffuse in the horizontal direction.
[0048] In this embodiment, 0.2≤L1 / L2≤0.35 ensures that the rotary turbine 3 has sufficient disturbance space and can drive the gas to flow in the horizontal direction.
[0049] Specifically, L1 / L2 can be 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.3, 0.31, 0.32, 0.33, 0.34 or 0.35.
[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A central mechanism, characterized in that, include: The capsule assembly (1) includes a fixing ring seat (12) and a vulcanized capsule (11), the vulcanized capsule (11) being disposed on the fixing ring seat (12). Cylinder head (2), the cylinder head (2) is disposed on the fixed ring seat (12) and located inside the vulcanizing capsule (11), the top of the cylinder head (2) is provided with an air inlet (21), and the side wall of the cylinder head (2) is provided with a plurality of air outlets (22) at intervals along the circumference. A rotating turbine (3) is rotatably disposed inside the cylinder head (2) to drive gas from the inlet (21) to the outlet (22). The rotating turbine (3) and the cylinder head (2) rub and pressurize the gas to heat it.
2. The central mechanism according to claim 1, characterized in that, The cylinder head (2) includes an aperture section (23), and an aperture cavity (26) is formed between the aperture section (23) and the fixed ring seat (12). The aperture section (23) is arranged around the outer periphery of the rotating turbine (3), and a plurality of air outlets (22) are arranged outside the aperture section (23). The gas flows circumferentially in the aperture cavity (26).
3. The central mechanism according to claim 2, characterized in that, The circulation section (23) includes an inner ring wall (232) and an outer ring wall (231). The outer ring wall (231) is arranged around the inner ring wall (232). There is an annular center line (100) between the inner ring wall (232) and the outer ring wall (231). The air outlet (22) is arranged on the outer ring wall (231). The air outlet (22) includes a first air outlet section (221). The first air outlet section (221) extends to the inner side of the outer ring wall (231) to communicate with the circulation cavity (26). The axis of the first air outlet section (221) is tangent to the annular center line (100).
4. The central mechanism according to claim 3, characterized in that, The air outlet (22) further includes a second air outlet section (222), which extends to the outside of the outer ring wall (231). The second air outlet section (222) is connected to the first air outlet section (221). The angle between the axis of the second air outlet section (222) and the outer ring wall (231) is α, and α ≤ 30°.
5. The central mechanism according to claim 1, characterized in that, A heating space is formed between the cylinder head (2) and the fixed ring seat (12). The heating space includes a drainage cavity (24), a connecting cavity (25) and a circulating cavity (26) connected sequentially from the inside to the outside. The flow area of the connecting cavity (25) is smaller than the flow area of the circulating cavity (26).
6. The central mechanism according to claim 5, characterized in that, The rotating turbine (3) includes a support (31) and a plurality of blades (32) disposed on the outer periphery of the support (31). The support (31) is rotatably disposed in the drainage cavity (24). The blades (32) include blade tails (322), and a portion of the blade tails (322) extends into the communicating cavity (25).
7. The central mechanism according to claim 6, characterized in that, The blade (32) also includes a blade tip (321) and a connecting outer edge (323). The connecting outer edge (323) is located between the blade tip (321) and the blade tail (322) and is spaced apart from the support (31). The width of the blade (32) gradually decreases from the blade tip (321) along the connecting outer edge (323) to the blade tail (322).
8. The central mechanism according to claim 5, characterized in that, Multiple guide plates (27) are arranged circumferentially in the communicating cavity (25). The guide plates (27) are spaced apart from the cylinder head (2), and a flow channel is formed between two adjacent guide plates (27).
9. The central mechanism according to claim 8, characterized in that, The guide plate (27) is inclined and in the direction from the inside to the outside, the guide plate (27) is inclined in the direction of gas flow in the communicating cavity (25).
10. A tire vulcanizing equipment, characterized in that, The device includes the central mechanism as described in any one of claims 1 to 9, and further includes a vulcanizing mold disposed around the capsule assembly (1).