Tire vulcanization equipment

Abstract

The utility model relates to the technical field of tire manufacturing, and discloses tire vulcanizing equipment. Included angles are formed between first air holes in a center ring seat of the tire vulcanization equipment and the axial direction and the circumferential direction of the center ring seat respectively, guide vanes are located in air injection paths of the first air holes, and the air injection direction coincides with the normal direction of the guide vanes. The structure can accurately guide airflow, gas media are decomposed into axial speed and circumferential speed when flowing through the air holes, the axial speed and the circumferential speed synergistically act on the guide vanes, the guide vanes efficiently rotate, the rotating efficiency is improved, high-temperature gas can be evenly guided to all positions of the inner wall of the curing bladder, it is guaranteed that the interior of the curing bladder is evenly heated, and the service life of the curing bladder is prolonged. Therefore, the vulcanization quality is improved. In addition, the turbulent flow assembly is driven by airflow to rotate passively, uniform circulation of gas is achieved under the condition that an additional power source is not added, the structure of equipment is simplified, the manufacturing cost is reduced, and energy loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, and in particular to a tire vulcanization device. Background Technology

[0002] Tire vulcanization refers to the vulcanization of the outer tire, which is carried out using a mold and pressure method. Before vulcanization, tires are viscoelastic, malleable rubber that is easily deformed, has low strength, and is of no use value. Through vulcanization, the malleable rubber is cured and transformed into a highly elastic rubber with usable value.

[0003] Specifically, the tire vulcanization process involves placing unvulcanized tire blanks in a mold and, under high temperature and pressure, causing a chemical reaction that cross-links the linear polymers within the plastic rubber, generating a network of polymer materials. This process macroscopically manifests as curing, thereby giving the tire the desired physical properties and dimensional stability. This step directly determines the tire's quality, lifespan, and driving safety.

[0004] Conventional vulcanizing equipment requires a heating device and a gas circulation system inside the vulcanizing bladder to heat and circulate the gas medium within the bladder, creating a uniform high-temperature, high-pressure environment to ensure uniform tire temperature during vulcanization. Existing vulcanizing equipment uses actively rotating fans or other airflow-disrupting devices to ensure gas circulation. However, this approach requires a motor and drive shaft, increasing equipment complexity and manufacturing costs, and occupying significant space within the vulcanizing bladder. Furthermore, because the inlet and outlet pipes in existing vulcanizing equipment are vertical, the blades primarily bear the axial velocity of the airflow, limiting rotational efficiency. This results in low efficiency of high-temperature gas circulation within the vulcanizing bladder, leading to significant temperature differences throughout the bladder and ultimately uneven tire vulcanization, affecting the quality of the vulcanization process.

[0005] Therefore, there is an urgent need for a tire vulcanization equipment to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a tire vulcanization device with high internal high-temperature gas circulation efficiency, uniform tire vulcanization, and high tire vulcanization quality.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A tire vulcanizing apparatus, comprising:

[0009] A vulcanizing mold, wherein the vulcanizing mold has an openable and closable structure and a vulcanizing cavity is formed inside the vulcanizing mold;

[0010] A vulcanizing capsule, wherein the vulcanizing capsule is disposed in the vulcanizing cavity;

[0011] Support device, the support device comprising:

[0012] A central rod, concentrically arranged with the vulcanizing mold and the vulcanizing capsule, and capable of rising or falling; and,

[0013] A central ring seat, which is cylindrical in shape and coaxially fitted onto the central rod, has an inner and outer air inlet channel and an outer air outlet channel. Both the air inlet channel and the air outlet channel are annular. A first air hole is provided at the top of the air inlet channel, and a second air hole is provided on the side wall of the air outlet channel. The first air hole and the second air hole are respectively connected to the vulcanization cavity. The first air hole is set at an angle to the axial and circumferential directions of the central ring seat.

[0014] The tire vulcanizing equipment also includes a gas circulation system, which includes a flow turbulence component disposed in the vulcanizing chamber. The flow turbulence component is coaxially arranged with the central rod and located above the central ring seat. The flow turbulence component includes a guide vane, which is located in the gas injection path of the first air hole, and the gas injection direction coincides with the normal direction of the guide vane.

[0015] As the preferred technical solution for the aforementioned tire vulcanization equipment.

[0016] On any cross-section along the height direction, at least two first air holes are provided, and all the first air holes on the same cross-section are evenly distributed along the circumferential direction of the central ring seat; and / or,

[0017] On any cross section along the height direction, at least one ring of the first air holes is uniformly provided radially along the central ring seat, each ring including at least two first air holes, and all the first air holes in each ring are uniformly distributed along the circumference of the central ring seat.

[0018] As the preferred technical solution for the aforementioned tire vulcanization equipment.

[0019] On any cross-section along the height direction, at least two second vents are provided, and all the second vents on the same cross-section are uniformly distributed along the circumferential direction of the central ring seat; and / or,

[0020] At least one set of second air holes is uniformly provided along the height direction, each set including at least two second air holes, and all the second air holes in each set are uniformly distributed along the circumference of the central ring seat; when there are two or more sets of second air holes, the two or more sets of second air holes are uniformly distributed along the height direction.

[0021] As a preferred technical solution for the above-mentioned tire vulcanizing equipment, the support device further includes a clamping assembly, which is used to seal the vulcanizing bladder in the vulcanizing chamber;

[0022] The clamping assembly includes:

[0023] An upper clamping ring and an upper pressure ring, the upper clamping ring being mounted to the central rod, the upper pressure ring being mounted to the vulcanizing mold, and the upper end of the vulcanizing capsule being clamped between the upper clamping ring and the upper pressure ring; and,

[0024] The lower clamping ring and the lower pressure ring are provided. The lower clamping ring is installed to the central ring seat, and the lower pressure ring is installed to the vulcanizing mold. The lower end of the vulcanizing capsule is clamped between the lower clamping ring and the lower pressure ring.

[0025] As the preferred technical solution for the aforementioned tire vulcanization equipment.

[0026] The lower end of the central ring seat is provided with a gas medium inlet and a gas medium outlet, the gas medium inlet is connected to the air inlet channel, and the gas medium outlet is connected to the air outlet channel.

[0027] The outlet of the gas circulation system is connected to the inlet of the gas medium, and the inlet of the gas circulation system is connected to the outlet of the gas medium.

[0028] As the preferred technical solution for the aforementioned tire vulcanization equipment.

[0029] The gas circulation system also includes a gas generating device and a gas circulation control device disposed outside the vulcanizing mold. The gas generating device and the gas circulation control device are connected by a pipeline. The outlet end of the gas circulation control device is connected to the gas medium inlet, and the inlet end of the gas circulation control device is connected to the gas medium outlet.

[0030] The gas circulation control device includes a pressure gauge, a solenoid valve, a check valve, a cylinder, and a hydraulic cylinder;

[0031] The gas generator is connected to the solenoid valve via a pipeline. The pressure gauge is installed on the pipeline between the gas generator and the solenoid valve. The output end of the hydraulic cylinder is connected to the piston of the cylinder. The solenoid valve is connected to the cylinder via a pipeline. A one-way valve is provided between the solenoid valve and the cylinder. The one-way valve is used to ensure that gas can only flow from the solenoid valve to the cylinder.

[0032] The outlet end of the cylinder is connected to the gas medium inlet through a pipeline, and a one-way valve is provided between the outlet end of the cylinder and the gas medium inlet. The one-way valve is used to ensure that gas can only flow from the cylinder to the gas medium inlet.

[0033] The inlet of the cylinder is connected to the outlet of the gas medium through a pipeline, and a one-way valve is provided between the outlet of the gas medium and the inlet of the cylinder. The one-way valve is used to ensure that gas can only flow from the outlet of the gas medium to the cylinder.

[0034] As a preferred technical solution for the aforementioned tire vulcanizing equipment, the tire vulcanizing equipment further includes:

[0035] A heating device is disposed on the outer surface of the central ring seat and above the lower clamping ring, and / or disposed on the inner surface of the central ring seat.

[0036] As a preferred technical solution for the above-mentioned tire vulcanizing equipment, the turbulence component further includes a support, a bearing, and a blade support. The support is annular and is coaxially sleeved on the central rod and fixed to the central ring seat. The support and the central rod are clearance-fitted. The bearing is sleeved between the support and the blade support, and the guide blade is mounted on the blade support.

[0037] The guide vanes are spiral-shaped.

[0038] As a preferred technical solution for the above-mentioned tire vulcanizing equipment, a heat exchange section is provided in the air inlet channel and / or the air outlet channel.

[0039] As a preferred technical solution for the above-mentioned tire vulcanizing equipment, the outer surface of the central ring seat located outside the vulcanizing capsule is provided with a heat insulation layer;

[0040] The insulation layer is made of ceramic fiber or rock wool.

[0041] The beneficial effects of this utility model include at least the following:

[0042] This invention relates to a tire vulcanizing device. The first air hole on the central ring seat is set at an angle to both the axial and circumferential directions of the central ring seat. Similarly, the second air hole on the central ring seat is also set at an angle to both the axial and circumferential directions. A guide vane is located within the gas injection path of the first air hole, and the gas injection direction coincides with the normal direction of the guide vane. This structure enables precise airflow guidance. When the gas medium flows through the air hole, it is decomposed into axial and circumferential velocities. These velocities work synergistically on the guide vane, causing it to rotate efficiently. This not only improves rotational efficiency but also evenly guides the high-temperature gas to all parts of the vulcanizing capsule's inner wall, ensuring uniform heating inside the capsule and thus improving vulcanization quality. Furthermore, the airflow drives the turbulence-inducing component to rotate passively, achieving uniform gas circulation without adding an additional power source. This passively rotating turbulence-inducing component design not only simplifies the device's structure and reduces manufacturing costs but also promises to improve the overall energy efficiency of the vulcanizing device by reducing energy loss. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0044] Figure 1 This is a cross-sectional structural schematic diagram of the tire vulcanizing equipment provided in a specific embodiment of this utility model;

[0045] Figure 2 yes Figure 1 Sectional view along the AA direction.

[0046] In the picture:

[0047] 1. Vulcanizing mold; 2. Vulcanizing capsule; 3. Support device; 4. Gas circulation system; 5. Heating device; 6. Heat exchanger; 7. Insulation layer;

[0048] 11. Upper mold; 12. Lower mold;

[0049] 31. Center rod;

[0050] 32. Central ring seat; 321. Inlet channel; 322. Outlet channel; 323. First vent; 324. Second vent; 325. Gas medium inlet; 326. Gas medium outlet;

[0051] 33. Clamping assembly; 331. Upper pressure ring; 332. Upper clamping ring; 333. Lower clamping ring; 334. Lower pressure ring;

[0052] 41. Aerodynamic components; 411. Support; 412. Bearing; 413. Blade support; 414. Guide vane;

[0053] 42. Gas generating device;

[0054] 43. Gas circulation control device; 431. Pressure gauge; 432. Solenoid valve; 433. Check valve; 434. Cylinder; 435. Hydraulic cylinder. Detailed Implementation

[0055] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] In some existing vulcanizing equipment, a fan or other turbulence device is installed inside the vulcanizing capsule. The fan or other turbulence device is generally installed in the airflow channel of the air inlet pipe or exhaust pipe. The airflow drives the fan or other turbulence device to rotate, so as to generate a uniform high temperature and high pressure environment inside the vulcanizing capsule.

[0062] However, the above solution has the following problems: Since both the intake and exhaust pipes are vertical, the blades mainly bear the axial velocity of the airflow, and the rotation efficiency is limited. This results in low circulation efficiency of high-temperature gas inside the vulcanizing bladder, which in turn causes a large temperature difference in various parts of the bladder, ultimately leading to uneven vulcanization of the tire and affecting the vulcanization quality of the tire.

[0063] like Figure 1 and Figure 2 As shown, this embodiment provides a tire vulcanizing device, which includes a vulcanizing mold 1, a vulcanizing capsule 2, a support device 3, and a gas circulation system 4.

[0064] Specifically, the vulcanizing mold 1 is a hollow, openable structure, and a vulcanizing cavity is formed inside the vulcanizing mold 1; the vulcanizing capsule 2 is disposed in the vulcanizing cavity; the support device 3 includes a liftable central rod 31, a central ring seat 32 disposed on the central rod 31, and a clamping assembly 33, which is used to seal the vulcanizing capsule 2 in the vulcanizing cavity.

[0065] Specifically, the vulcanizing mold 1 adopts a split structure design, including an upper mold 11 and a lower mold 12. The upper mold 11 can be tightly fitted with a liftable central rod 31 and a clamping assembly 33. Before vulcanization, the upper mold 11 and the lower mold 12 separate, and the central rod 31 rises, causing the vulcanizing bladder 2 to contract, providing ample space for placing the green tire to be vulcanized. After the green tire is placed, the upper mold 11 descends and tightly closes with the lower mold 12, forming a closed vulcanization environment. During the vulcanization process, the vulcanizing machine provides the clamping force to the vulcanizing mold 1.

[0066] The vulcanizing capsule 2 is a hollow, thin-walled rubber product. Its main function is to hold the green tire to be vulcanized and to carry out the shaping and vulcanization process in conjunction with the vulcanizing machine by introducing a gas medium. The gas medium can be water vapor, an inert gas, or a rare gas, as long as it does not participate in the redox reaction. In this embodiment, nitrogen is preferred as the working gas due to its stability and ease of availability.

[0067] The center rod 31 is concentrically set with the vulcanizing mold 1 and the vulcanizing capsule 2 respectively, and the center rod 31 can rise or fall; after the upper mold 11 and the lower mold 12 of the vulcanizing mold 1 separate, the center rod 31 rises to place the green tire to be vulcanized in the vulcanizing cavity, and after the center rod 31 falls, the upper mold 11 falls again to close with the lower mold 12.

[0068] The central ring seat 32 is located at the bottom center of the vulcanizing mold 1. The central ring seat 32 is clearance-fitted with the central rod 31 and provides installation space for the central rod 31. A sealing device is provided between the central rod 31 and the central ring seat 32 to prevent gas leakage. The sealing device can be a sealing ring or other sealing structure. The central ring seat 32 is cylindrical in shape and is coaxially fitted onto the central rod 31 along its axis.

[0069] like Figure 2 As shown, the central ring seat 32 has an inner and outer air inlet channel 321 and an outer air outlet channel 322, both of which are annular. A first air hole 323 is provided at the top of the air inlet channel 321, and a second air hole 324 is provided on the side wall of the air outlet channel 322. The first air hole 323 and the second air hole 324 are respectively connected to the vulcanizing chamber. The first air hole 323 is set at an angle to the axial and circumferential directions of the central ring seat 32. Optionally, the second air hole 324 is set at an angle to the axial and circumferential directions of the central ring seat 32.

[0070] The gas circulation system 4 includes a flow-dispersing component 41, which is disposed in the vulcanization chamber. The flow-dispersing component 41 is coaxially arranged with the central rod 31 and located above the central ring seat 32. The flow-dispersing component 41 includes a guide vane 414, which is located in the gas injection path of the first gas hole 323. The gas injection direction coincides with or substantially coincides with the normal direction of the guide vane 414, that is, the gas injection direction is substantially perpendicular to the surface of the guide vane 414. This structure can increase the rotational speed of the guide vane 414.

[0071] In this embodiment, the air holes on the central ring seat 32 are set at an angle to the axial and circumferential directions of the central ring seat 32, and the guide vane 414 is located in the gas injection path of the first air hole 323, with the gas injection direction coinciding or substantially coinciding with the normal direction of the guide vane 414. This structure can achieve precise guidance of airflow. When the gas medium flows through the air hole, it is decomposed into axial velocity and circumferential velocity, which work together to guide the vane 414, making the guide vane 414 rotate efficiently. This not only improves rotation efficiency but also guides the high-temperature gas evenly to all parts of the inner wall of the vulcanizing capsule 2, ensuring uniform heating inside the vulcanizing capsule 2 and thus improving vulcanization quality. In addition, the airflow drives the turbulence component 41 to rotate passively, thereby achieving uniform gas circulation without adding an additional power source. This passively rotating turbulence component 41 design not only simplifies the structure of the equipment and reduces manufacturing costs but also has the potential to improve the overall energy efficiency of the vulcanization equipment by reducing energy loss.

[0072] Optionally, at least two first air holes 323 are provided on any cross section along the height direction, and all the first air holes 323 on the same cross section are evenly distributed along the circumferential direction of the central ring seat 32. This structural arrangement can improve the uniformity of gas outlet, thereby improving the uniformity of gas medium flow.

[0073] Alternatively, at least one ring of first air holes 323 is uniformly provided radially along the central ring seat 32 on any cross section along the height direction, with each ring including at least two first air holes 323. All the first air holes 323 in each ring are uniformly distributed along the circumference of the central ring seat 32. This structural arrangement can further improve the uniformity of gas output, thereby further improving the uniformity of gas medium flow.

[0074] Optionally, at least two second vents 324 are provided on any cross-section along the height direction, and all the second vents 324 on the same cross-section are evenly distributed along the circumference of the central ring seat 32. This structural arrangement can improve the uniformity of return gas, thereby improving the uniformity of gas medium flow. On the same cross-section, the number of first vents 323 and the number of second vents 324 can be the same. Along the same radial direction, the inner first vents 323 and the outer second vents 324 are arranged in a one-to-one correspondence. This structural arrangement can further improve the uniformity of gas medium flow and also improve processing convenience. In this embodiment, there are eight first vents 323 and eight second vents 324, and the eight first vents 323 and eight second vents 324 are arranged in a one-to-one correspondence. Of course, the number of first vents 323 and second vents 324 is not limited to this and can be designed according to actual conditions.

[0075] Optionally, at least one set of second vents 324 are uniformly provided along the height direction, each set including at least two second vents 324, and all the second vents 324 in each set are uniformly distributed along the circumference of the central ring seat 32; when two or more sets of second vents 324 are provided, the two or more sets of second vents 324 are uniformly distributed along the height direction. This structural arrangement can further improve the uniformity of return gas, thereby further improving the uniformity of gas medium flow.

[0076] The clamping assembly 33 includes an upper clamping ring 332, an upper pressure ring 331, a lower clamping ring 333, and a lower pressure ring 334. The upper clamping ring 332 is mounted to the central rod 31, and the upper pressure ring 331 is mounted to the upper mold 11, with the upper end of the vulcanizing capsule 2 clamped between the upper clamping ring 332 and the upper pressure ring 331. The lower clamping ring 333 is mounted to the central ring seat 32, and the lower pressure ring 334 is mounted to the lower mold 12, with the lower end of the vulcanizing capsule 2 clamped between the lower clamping ring 333 and the lower pressure ring 334. The clamping assembly 33 achieves a sealed installation of the vulcanizing capsule 2, ensuring its stability and sealing during the vulcanization process, thereby preventing gaseous medium leakage.

[0077] In this embodiment, the lower end of the central ring seat 32 is provided with a gas medium inlet 325 and a gas medium outlet 326. The gas medium inlet 325 is connected to the air inlet channel 321, and the gas medium outlet 326 is connected to the air outlet channel 322. The outlet end of the gas circulation system 4 is connected to the gas medium inlet 325, and the inlet end of the gas circulation system 4 is connected to the gas medium outlet 326, thereby forming a closed space suitable for gas circulation inside the gas circulation system 4 and the vulcanizing capsule 2.

[0078] In this embodiment, the gas circulation system 4 includes a gas generating device 42 and a gas circulation control device 43 disposed outside the vulcanizing mold 1. The gas generating device 42 can be a nitrogen generator or a steam boiler, whichever is selected according to the actual situation. The gas generating device 42 and the gas circulation control device 43 are connected by pipelines. The outlet end of the gas circulation control device 43 is connected to the gas medium inlet 325, and the inlet end of the gas circulation control device 43 is connected to the gas medium outlet 326. The gas circulation control device 43 is used to control the gas supply of the gas generating device 42, providing a gas medium for the vulcanization process.

[0079] Specifically, the gas circulation control device 43 includes a pressure gauge 431, a solenoid valve 432, a check valve 433, a cylinder 434, and a hydraulic cylinder 435. The gas generator 42 is connected to the solenoid valve 432 via a pipeline. The pressure gauge 431 is installed on the pipeline between the gas generator 42 and the solenoid valve 432. The output end of the hydraulic cylinder 435 is connected to the piston of the cylinder 434. The solenoid valve 432 is connected to the cylinder 434 via a pipeline. A check valve 433 is installed between the solenoid valve 432 and the cylinder 434. The check valve 433 ensures that gas can only flow from the solenoid valve 431. 2. Gas flows to cylinder 434; the outlet end of cylinder 434 is connected to gas medium inlet 325 through a pipeline, and a one-way valve 433 is provided between the outlet end of cylinder 434 and gas medium inlet 325. The one-way valve 433 is used to ensure that gas can only flow from cylinder 434 to gas medium inlet 325; the inlet end of cylinder 434 is connected to gas medium outlet 326 through a pipeline, and a one-way valve 433 is provided between gas medium outlet 326 and inlet end of cylinder 434. The one-way valve 433 is used to ensure that gas can only flow from gas medium outlet 326 to cylinder 434.

[0080] Specifically, the working process of the gas circulation control device 43 is as follows: the gas generator 42 generates gas and delivers it to the solenoid valve 432 through the pipeline. The pressure gauge 431 monitors the gas pressure in real time. After reaching a certain pressure, the solenoid valve 432 is closed. The one-way valve 433 ensures that the gas can only flow from the solenoid valve 432 to the cylinder 434.

[0081] When the piston of hydraulic cylinder 435 moves to the right, it pushes the piston of cylinder 434 to move to the right. The gas in the right cavity of cylinder 434 is compressed and enters the gas medium inlet 325 through the one-way valve 433 located on the upper right side of cylinder 434. A negative pressure is formed in the left cavity of cylinder 434. After the gas is discharged from the gas medium outlet 326, it enters the left cavity through the one-way valve 433 on the lower left side of cylinder 434.

[0082] When the piston of hydraulic cylinder 435 moves to the left, it drives the piston of cylinder 434 to move to the left. The gas in the left cavity of cylinder 434 is compressed and enters the gas medium inlet 325 through the one-way valve 433 located on the upper left side of cylinder 434. A negative pressure is formed in the right cavity of cylinder 434. After the gas is discharged from the gas medium outlet 326, it enters the right cavity through the one-way valve 433 on the lower right side of cylinder 434, forming a cycle.

[0083] The tire vulcanizing equipment also includes a heating device 5, which is used to heat the gaseous medium. The heating device 5 is located on the outer surface of the central ring seat 32 and above the lower clamping ring 333. The heating method of the tire vulcanizing equipment can be electromagnetic induction heating, resistance heating, infrared heating, etc. In this embodiment, electromagnetic induction heating is preferred, and accordingly, the heating device 5 is a heating coil. The heating device 5 can also be located on the inner surface of the central ring seat 32 to directly heat the gaseous medium. Of course, the heating device 5 can also be set on both the outer and inner surfaces of the central ring seat 32, resulting in higher heating efficiency.

[0084] The turbulence-inducing assembly 41 in this embodiment further includes a support 411, a bearing 412, and a blade support 413. The support 411 is coaxially arranged with the central rod 31, and the bottom of the support 411 is fixed to the central ring seat 32. The support 411 is annular, and the support 411 and the central rod 31 are clearance-fitted to facilitate the vertical movement of the central rod 31. The bearing 412 is sleeved between the support 411 and the blade support 413, and the blade support 413 is tightly fitted with the outer ring of the bearing 412. The guide vane 414 is mounted on the blade support 413. The guide vane 414 can be helically twisted.

[0085] In this embodiment, a heat exchange section 6 may be provided in both the air inlet channel 321 and the air outlet channel 322; preferably, both are provided. By providing the heat exchange section 6, the heat exchange area can be increased, and the heat exchange efficiency can be improved. Optionally, the heat exchange section 6 is made of a porous medium material.

[0086] In this embodiment, a heat insulation layer 7 is provided on the outer surface of the central ring seat 32 below the lower clamping ring 333 and corresponding to the outside of the vulcanizing capsule 2. That is, the outer surface of the central ring seat 32 outside the vulcanizing capsule 2 is provided with a heat insulation layer 7 to further improve the heat insulation effect and prevent heat loss.

[0087] Optionally, the insulation layer 7 is made of ceramic fiber or rock wool. The insulation layer 7 is fixed to the outer surface of the central ring seat 32 by wire mesh or steel strip.

[0088] Obviously, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0089] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A tire vulcanizing apparatus, comprising: A vulcanizing mold (1) is an openable structure, and a vulcanizing cavity is formed inside the vulcanizing mold (1); A vulcanizing capsule (2) is disposed in the vulcanizing cavity; Support device (3), the support device (3) includes: A central rod (31) is concentrically arranged with the vulcanizing mold (1) and the vulcanizing capsule (2), and the central rod (31) is capable of rising or falling; and, A central ring seat (32) is cylindrical in shape and coaxially sleeved on the central rod (31). The central ring seat (32) has an inner and outer air inlet channel (321) and an outer air outlet channel (322), both of which are annular. A first air hole (323) is provided at the top of the air inlet channel (321), and a second air hole (324) is provided on the sidewall of the air outlet channel (322). The first air hole (323) and the second air hole (324) are respectively connected to the vulcanizing cavity. The first air hole (323) is angled to the axial and circumferential directions of the central ring seat (32). The tire vulcanizing equipment also includes a gas circulation system (4), which includes a turbulence shroud assembly (41). The turbulence shroud assembly (41) is disposed in the vulcanizing chamber. The turbulence shroud assembly (41) is coaxially disposed with the central rod (31) and located above the central ring seat (32). The turbulence shroud assembly (41) includes a guide vane (414). The guide vane (414) is located in the gas injection path of the first air hole (323), and the gas injection direction coincides with the normal direction of the guide vane (414).

2. The tire vulcanizing equipment as described in claim 1, characterized in that, At least two first air holes (323) are provided on any cross-section along the height direction, and all the first air holes (323) on the same cross-section are uniformly distributed along the circumferential direction of the central ring seat (32); and / or, On any cross section along the height direction, at least one ring of the first air holes (323) is uniformly provided in the radial direction of the central ring seat (32), each ring including at least two first air holes (323), and all the first air holes (323) in each ring are uniformly distributed along the circumference of the central ring seat (32).

3. The tire vulcanizing equipment as described in claim 1, characterized in that, At least two second air holes (324) are provided on any cross section along the height direction, and all the second air holes (324) on the same cross section are uniformly distributed along the circumferential direction of the central ring seat (32); and / or, At least one set of second air holes (324) is provided along the height direction, each set including at least two second air holes (324), and all the second air holes (324) in each set are evenly distributed along the circumferential direction of the central ring seat (32); when there are two or more sets of second air holes (324), the two or more sets of second air holes (324) are evenly distributed along the height direction.

4. The tire vulcanizing equipment as described in claim 1, characterized in that, The support device (3) further includes a clamping assembly (33) for sealingly installing the vulcanizing capsule (2) in the vulcanizing cavity; The clamping assembly (33) includes: An upper clamping ring (332) and an upper pressure ring (331) are provided, wherein the upper clamping ring (332) is mounted to the center rod (31), and the upper pressure ring (331) is mounted to the vulcanizing mold (1). The upper end of the vulcanizing capsule (2) is clamped between the upper clamping ring (332) and the upper pressure ring (331); and, The lower clamping ring (333) and the lower pressure ring (334) are installed on the central ring seat (32) and the lower pressure ring (334) is installed on the vulcanizing mold (1). The lower end of the vulcanizing capsule (2) is clamped between the lower clamping ring (333) and the lower pressure ring (334).

5. The tire vulcanizing equipment as described in claim 1, characterized in that, The lower end of the central ring seat (32) is provided with a gas medium inlet (325) and a gas medium outlet (326). The gas medium inlet (325) is connected to the air inlet channel (321), and the gas medium outlet (326) is connected to the air outlet channel (322). The outlet end of the gas circulation system (4) is connected to the gas medium inlet (325), and the inlet end of the gas circulation system (4) is connected to the gas medium outlet (326).

6. The tire vulcanizing equipment as described in claim 5, characterized in that, The gas circulation system (4) further includes a gas generating device (42) and a gas circulation control device (43) disposed outside the vulcanizing mold (1). The gas generating device (42) and the gas circulation control device (43) are connected by a pipeline. The outlet end of the gas circulation control device (43) is connected to the gas medium inlet (325), and the inlet end of the gas circulation control device (43) is connected to the gas medium outlet (326). The gas circulation control device (43) includes a pressure gauge (431), a solenoid valve (432), a check valve (433), a cylinder (434), and a hydraulic cylinder (435); The gas generator (42) is connected to the solenoid valve (432) through a pipeline. The pressure gauge (431) is installed on the pipeline between the gas generator (42) and the solenoid valve (432). The output end of the hydraulic cylinder (435) is connected to the piston of the cylinder (434). The solenoid valve (432) is connected to the cylinder (434) through a pipeline. A one-way valve (433) is provided between the solenoid valve (432) and the cylinder (434). The one-way valve (433) is used to ensure that gas can only flow from the solenoid valve (432) to the cylinder (434). The outlet end of the cylinder (434) is connected to the gas medium inlet (325) through a pipeline, and a one-way valve (433) is provided between the outlet end of the cylinder (434) and the gas medium inlet (325). The one-way valve (433) is used to ensure that gas can only flow from the cylinder (434) to the gas medium inlet (325). The inlet end of the cylinder (434) is connected to the gas medium outlet (326) through a pipeline, and a one-way valve (433) is provided between the gas medium outlet (326) and the inlet end of the cylinder (434). The one-way valve (433) is used to ensure that gas can only flow from the gas medium outlet (326) to the cylinder (434).

7. The tire vulcanizing equipment as described in claim 4, characterized in that, The tire vulcanizing equipment also includes: Heating device (5) is disposed on the outer surface of the central ring seat (32) and above the lower clamping ring (333), and / or disposed on the inner surface of the central ring seat (32).

8. The tire vulcanizing equipment as described in claim 1, characterized in that, The turbulence assembly (41) further includes a support (411), a bearing (412), and a blade support (413). The support (411) is annular and is coaxially sleeved on the central rod (31) and fixed to the central ring seat (32). The support (411) and the central rod (31) are clearance-fitted. The bearing (412) is sleeved between the support (411) and the blade support (413). The guide vane (414) is mounted on the blade support (413). The guide vane (414) is spiral-shaped.

9. The tire vulcanizing equipment as described in claim 1, characterized in that, A heat exchange section (6) is provided in the air inlet channel (321) and / or the air outlet channel (322); The heat exchange section (6) is made of porous media material.

10. The tire vulcanizing equipment as described in claim 1, characterized in that, The central ring seat (32) is provided with a heat insulation layer (7) on the outer surface of the area outside the vulcanized capsule (2); The insulation layer (7) is made of ceramic fiber or rock wool.

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