A tire vulcanization apparatus

Abstract

This application discloses a tire vulcanizing device, including a vulcanizing bladder, a central rod, an electromagnetic heating assembly, and a stirring assembly. The vulcanizing bladder is clamped by an upper clamping assembly and a lower clamping assembly. The upper end of the central rod is fixedly connected to the upper clamping assembly and can move vertically relative to the lower clamping assembly. The electromagnetic heating assembly is disposed inside the vulcanizing bladder and includes an annular body, a base, and an electromagnetic heating coil. The base is connected to the lower clamping assembly. When the electromagnetic heating coil is energized, it heats the gas medium inside the vulcanizing bladder. The port at the upper shaft end of the annular body forms an air inlet, and the electromagnetic heating assembly has multiple air outlets. The stirring assembly includes a rotating component. The electromagnetic heating assembly, the rotating component, and the central rod are coaxially arranged from the outside to the inside. When the rotating component rotates, it draws the gas medium into the annular body from the air inlet and then discharges it through the multiple air outlets. This solution effectively solves the problems of slow heating rate and low vulcanization efficiency in existing vulcanizing equipment.

Description

Technical Field

[0001] This application relates to the field of tire vulcanization technology, specifically to a tire vulcanization device. Background Technology

[0002] Vulcanization is widely used in industrial production. Through vulcanization, the overall hardness of certain materials can be increased, such as the hardness of rubber. Rubber is one of the main materials used in tire manufacturing. Before vulcanization, rubber tires are viscoelastic, malleable rubber that is easily deformed and has low strength. After vulcanization, the rubber hardens and acquires higher strength and elasticity.

[0003] Traditional tire vulcanization processes typically employ a combination of saturated steam and nitrogen. The process is as follows: First, the unvulcanized tire is placed between a sealed vulcanizing bladder and a vulcanizing mold. Then, saturated steam is introduced into the vulcanizing bladder to provide the heat required for vulcanization. Next, high-pressure nitrogen is introduced to provide the necessary pressure. Under the combined heat of the saturated steam and the pressure of the nitrogen, the vulcanizing bladder expands, compresses, and heats the tire, thus shaping and vulcanizing it. One problem with this method is that the steam entering the vulcanizing bladder condenses, and the condensate accumulates at the bottom of the bladder, creating a significant temperature difference that affects the vulcanization effect. Furthermore, supplying steam to the vulcanizing bladder requires a steam pipeline, which occupies considerable space.

[0004] To address the above problems, existing technologies provide tire vulcanizing equipment centered around various electric vulcanizing devices. When tire vulcanization is required, a pressurized gaseous medium (such as a heating medium like nitrogen) is supplied into the vulcanizing bladder, causing the bladder to expand and squeeze the tire from the inside. A heating device heats the gaseous medium inside the vulcanizing bladder, and the bladder is also equipped with a stirring device such as a fan or impeller to agitate the gaseous medium. However, during the vulcanization process, the gaseous medium generally exhibits turbulent flow within the vulcanizing bladder, resulting in significant temperature differences throughout the bladder, slow heating rates, and low vulcanization efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a tire vulcanizing device. By improving the electromagnetic heating component and the stirring component, the technical problems of large temperature differences, slow heating rate, and low vulcanization efficiency caused by the turbulent flow of the gas medium in the vulcanizing capsule are improved or solved.

[0006] The technical solution adopted in this application is as follows:

[0007] A tire vulcanizing device includes a vulcanizing bladder and a central rod. The upper edge of the vulcanizing bladder is clamped by an upper clamping assembly, and the lower edge of the vulcanizing bladder is clamped by a lower clamping assembly. The upper end of the central rod is fixedly connected to the upper clamping assembly and is movable vertically relative to the lower clamping assembly. The tire vulcanizing device further includes an electromagnetic heating assembly and a stirring assembly. The electromagnetic heating assembly is disposed inside the vulcanizing bladder and includes an annular body, a base supporting the annular body, and an electromagnetic heating coil circumferentially wound around the annular body. The base is fixedly connected to the lower clamping assembly. When the heating coil is energized, the gas medium inside the vulcanizing capsule is heated. The port at the upper shaft end of the annular body forms an air inlet. The electromagnetic heating component has multiple air outlets evenly distributed along the circumference. The stirring component includes a rotating component disposed inside the vulcanizing capsule. The electromagnetic heating component, the rotating component, and the central rod are coaxially sleeved from the outside to the inside. The rotating component can rotate along the axis of the central rod. When rotating, it draws the gas medium from the air inlet into the interior of the annular body and then discharges it through the multiple air outlets, thereby causing the gas medium to circulate inside and outside the annular body.

[0008] In this technical solution, an electromagnetic heating component and a stirring component are installed inside the vulcanizing capsule, and both are coaxially fitted with the central rod. The electromagnetic heating coil heats the gas medium, and with the air inlet of the annular body and the evenly distributed air outlets, the rotating component drives the gas medium to circulate inside and outside the annular body at a relatively fast speed. This effectively promotes the uniformity of the gas medium distribution inside the vulcanizing capsule, and the reciprocating flow significantly improves the heat exchange efficiency between the electromagnetic heating component and the gas medium. This effectively solves the problems of slow heating rate and low vulcanization efficiency in existing electric heating vulcanization equipment, improves the overall efficiency of tire vulcanization, and facilitates the smooth operation of tire vulcanization.

[0009] The annular body is designed as a split structure, including multiple heating rings arranged vertically in sequence. The electromagnetic heating coil is wound around the outer periphery of each heating ring. The air outlet is provided between two adjacent heating rings and between the heating ring at the bottom and the base.

[0010] In this technical solution, the annular body is designed as a split structure containing multiple heating rings, with an electromagnetic heating coil wound around the outer circumference of each heating ring. At the same time, air outlets are set between adjacent heating rings and between the bottom heating ring and the base. This not only enhances the uniform distribution of the electromagnetic field, but also increases the uniformity of the gas medium distribution, as well as the uniformity and flexibility of heating, thereby improving heating efficiency. Furthermore, the gas medium heating path is extended through stratified airflow control, effectively improving the overall heating rate. This helps to heat the gas medium inside the vulcanizing capsule more quickly and uniformly, thereby improving the effect and efficiency of tire vulcanization.

[0011] The electromagnetic heating assembly also includes a multi-layer flow guiding assembly arranged vertically. Two adjacent heating rings are separated by a layer of the flow guiding assembly, and the heating ring at the bottom is separated from the base by a layer of the flow guiding assembly. Each layer of the flow guiding assembly includes a plurality of flow guiding elements evenly distributed circumferentially. The plurality of flow guiding elements are inclined relative to the circumferential tangent direction of the heating ring and the inclination direction is consistent. The sidewalls of two adjacent flow guiding elements enclose and form the air outlet.

[0012] In this technical solution, by adding flow guiding components between adjacent heating rings and between the heating ring and the tire, the flow guiding components are used to form an air outlet. The flow guiding components are inclined relative to the circumferential tangential direction of the heating ring, which can more rationally guide the flow of the gas medium. The gas medium generates a spiral airflow with tangential and radial velocities, and the circulation flow inside and outside the ring is smoother and more orderly. This further optimizes the circulation path of the heating medium, enhances the heat transfer effect, improves the temperature uniformity of the gas medium, improves vulcanization efficiency, and ensures the consistency of tire vulcanization quality.

[0013] The inclination angle of each of the flow guides relative to the circumferential tangent direction of the annular body is set as α, where α is greater than or equal to 20° and less than or equal to 45°.

[0014] In this technical solution, by limiting the tilt angle of the guide component, the ratio of the tangential velocity to the radial velocity of the airflow is optimized, so that the gas medium can achieve the best guiding effect when passing through the guide component. While ensuring smooth circulation, it improves the utilization rate of the heat generated by electromagnetic heating, avoids local heat accumulation or loss, and efficiently realizes heat transfer, thereby improving the heating rate and overall vulcanization efficiency of tire vulcanization.

[0015] One end of the flow guide is an inner end near the inner side of the heating ring, and the other end is an outer end. The cross-sectional area of ​​the flow guide gradually increases from the inner end to the outer end, and the surface of the outer end is set in an arc shape. The projection of the inner end on the horizontal plane is located inside the projection of the heating ring on the horizontal plane, and the outer end protrudes out of the outer side of the heating ring.

[0016] In this technical solution, the cross-sectional area of ​​the guide component gradually increases from the inner end to the outer end, and the surface of the outer end is arc-shaped. This helps to increase the pressure of the gas medium when it is discharged from the air outlet, and enhance its diffusion capacity. At the same time, the projection positions of the inner end and the outer end on the horizontal plane are reasonably set, which helps to reduce the flow resistance of the gas medium, so that the gas medium can be drawn in from the air inlet and discharged from the air outlet more efficiently. This enhances the stability of the gas medium circulation flow, further improves the heat transfer efficiency during the vulcanization process, and accelerates the heating process of tire vulcanization.

[0017] The flow guides of the two adjacent flow guide assemblies are staggered in the vertical direction.

[0018] In this technical solution, the guide components of adjacent two layers of flow guiding components are staggered in the vertical direction, which can avoid local turbulence or stagnation of the gas medium during the flow process, effectively avoid the collision loss of the upper and lower airflow, make the circulation flow of the gas medium in the entire annular body and vulcanizing capsule more uniform and sufficient, improve the overall heat distribution uniformity, and thus improve the quality and efficiency of tire vulcanization.

[0019] The lower clamping assembly has a through mounting hole, and a detachable ring seat is connected inside the mounting hole. The seat body is fixedly connected to the ring seat, and the ring seat has a central guide hole that guides the central rod to move in the vertical direction.

[0020] In this technical solution, the ring seat is detachably connected to the lower clamping assembly to form a modular structure, which facilitates assembly. The central guide hole ensures axial movement accuracy, and the detachable connection structure facilitates the replacement and maintenance of the vulcanizing capsule, improving the ease of use of the equipment.

[0021] The ring seat includes an inner cylinder and an outer cylinder sleeved on the outside of the inner cylinder. The outer cylinder is threadedly connected to the lower clamping assembly. The inner hole of the inner cylinder forms the central guide hole. A drive assembly for driving the rotating component to rotate is installed between the outer cylinder and the inner cylinder.

[0022] In this technical solution, the ring seat adopts an inner and outer cylinder structure and uses threaded connections and other methods to reasonably arrange the drive components. On the one hand, it enhances the stability of the structure, and on the other hand, it facilitates the rotation of the drive rotating parts to agitate the gas medium, ensuring the normal operation of the agitation components, effectively maintaining the circulation of the gas medium, improving the heat transfer and utilization efficiency during the vulcanization process, and promoting the efficient vulcanization of tires.

[0023] The drive assembly includes a motor and a transmission drum connected to the rotor of the motor. The rotating component is connected to the transmission drum, and the transmission drum is spaced apart from the outer cylinder. The transmission drum and the inner cylinder are connected by bearings.

[0024] In this technical solution, the drive assembly consisting of a motor and a transmission drum, along with the reasonable connection methods between the components, such as the interval arrangement of the transmission drum with the outer cylinder and the connection with the inner cylinder through bearings, can stably and reliably transmit the power of the motor to the rotating parts, ensuring the continuous and stable rotation of the rotating parts and the continuous circulation of the gas medium. This guarantees the continuous and efficient operation of the electromagnetic heating vulcanization equipment and improves the efficiency and quality of tire vulcanization.

[0025] The tire vulcanizing equipment also includes a mold, which includes an upper mold and a lower mold. When the upper mold and the lower mold are closed, they form a vulcanizing cavity. The vulcanizing capsule is placed in the vulcanizing cavity, and the tire to be vulcanized can be clamped between the mold and the vulcanizing capsule.

[0026] In this technical solution, the mold forms a vulcanization cavity and places the vulcanizing capsule inside, which enables the tire to be vulcanized to be accurately positioned in the appropriate vulcanization location and to cooperate well with the vulcanizing capsule. This ensures that the tire is vulcanized in an ideal spatial environment, improving the accuracy and quality of vulcanization. This makes the entire tire vulcanization equipment a complete vulcanization system, better realizing the function of tire vulcanization. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 Assembly of the tire vulcanizing equipment provided in the embodiments of this application Figure 1 ;

[0029] Figure 2 Assembly of the tire vulcanizing equipment provided in the embodiments of this application Figure 2 It shows the mold in the closed state and surrounding the vulcanized capsule;

[0030] Figure 3 Assembly of the tire vulcanizing equipment provided in the embodiments of this application Figure 3 The arrows in the diagram indicate the flow path of the gas medium under the rotation of the rotating component.

[0031] Figure 4 This is a schematic diagram of the electromagnetic heating assembly provided in the embodiments of this application;

[0032] Figure 5 This is a cross-sectional view of the tire vulcanizing equipment provided in the embodiments of this application;

[0033] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0034] List of components and reference numerals:

[0035] 1. Sulfated capsules;

[0036] 2. Center rod;

[0037] 3. Upper clamping components;

[0038] 4. Lower clamping assembly, 41. Mounting hole, 42. Ring seat, 421. Center guide hole, 422. Inner cylinder, 423. Outer cylinder;

[0039] 5 Electromagnetic heating assembly, 51 base, 52 air inlet, 53 air outlet, 54 heating ring, 55 air guide, 551 inner end, 552 outer end;

[0040] 6 rotating parts;

[0041] 7 molds, 71 upper mold; 72 lower mold;

[0042] 8 motors;

[0043] 9. Transmission drum;

[0044] 10 bearings. Detailed Implementation

[0045] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0047] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," 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 application. 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 can be combined in any suitable manner in one or more embodiments or examples.

[0050] In the embodiments of this application, reference is made to Figures 1 to 6 As shown, a tire vulcanizing device is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0051] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the tire vulcanizing equipment provided in this application includes a vulcanizing capsule 1 and a central rod 2. The upper edge of the vulcanizing capsule 1 is clamped by an upper clamping assembly 3, and the lower edge of the vulcanizing capsule 1 is clamped by a lower clamping assembly 4. The upper end of the central rod 2 is fixedly connected to the upper clamping assembly 3 and can move vertically relative to the lower clamping assembly 4. The tire vulcanizing equipment also includes an electromagnetic heating assembly 5 and a stirring assembly. The electromagnetic heating assembly 5 is disposed inside the vulcanizing capsule 1 and includes an annular body, a seat 51 supporting the annular body, and an electromagnetic heating coil circumferentially wound around the annular body (not shown in the accompanying drawings; the electromagnetic heating coil can be embedded in the outer surface of the annular body or limited by a retaining ring structure, so as to...). (Ensuring the electromagnetic heating coil is relatively fixed to the annular body), the base 51 is fixedly connected to the lower clamping assembly 4. When the electromagnetic heating coil is energized, it heats the gas medium inside the vulcanizing capsule 1. The port at the upper shaft end of the annular body forms an air inlet 52. The electromagnetic heating assembly 5 is provided with multiple air outlets 53 evenly distributed circumferentially. The stirring assembly includes a rotating component 6 located inside the vulcanizing capsule 1. The electromagnetic heating assembly 5, the rotating component 6, and the central rod 2 are coaxially sleeved from the outside to the inside. The rotating component 6 can rotate along the axis of the central rod 2, and when rotating, it draws the gas medium from the air inlet 52 into the interior of the annular body and then discharges it through the multiple air outlets 53, thereby causing the gas medium to circulate inside and outside the annular body. Furthermore, the tire vulcanizing equipment also includes a mold 7, which includes an upper mold 71 and a lower mold 72. When the upper mold 71 and the lower mold 72 are closed, they form a vulcanizing cavity. The vulcanizing capsule 1 is placed in the vulcanizing cavity, and the tire to be vulcanized can be clamped between the mold 7 and the vulcanizing capsule 1.

[0052] Specifically, the vulcanized capsule 1 can be a hollow thin-walled rubber product. The upper clamping assembly 3 and the lower clamping assembly 4 each include two clamping bodies. The two clamping bodies of the upper clamping assembly 3 are fitted together and fixed with screws to clamp the upper edge of the vulcanized capsule 1. The two clamping bodies of the lower clamping assembly 4 are fitted together and fixed with screws to clamp the lower edge of the vulcanized capsule 1. During the vulcanization process, the tire is loaded onto the vulcanizing capsule 1 from the outside. Then, the upper mold 71 and the lower mold 72 are closed, clamping the tire between the vulcanizing capsule 1 and the mold 7. A gaseous medium is then introduced into the vulcanizing capsule 1. The gaseous medium is heated and pressurized by the electromagnetic heating component 5 and agitated by the stirring component. The vulcanizing capsule 1 expands and compresses the tire, working in conjunction with the mold 7 to shape and vulcanize the tire, thereby improving its strength. The gaseous medium is an inert gas or a rare gas, as long as it does not participate in the oxidation-reduction reaction. In this embodiment, nitrogen is preferably used as the gaseous medium. Specifically, a sealable gaseous medium inlet and outlet can be provided on the lower clamping component 4 or the ring seat 42 inside the lower clamping component 4. The gaseous medium can enter and exit the vulcanizing capsule 1 through the same inlet and outlet. Alternatively, the lower clamping component 4 or the ring seat 42 can also have a sealable gaseous medium inlet and a sealable gaseous medium outlet. The gaseous medium enters the capsule cavity through the inlet and exits the capsule cavity through the outlet. The central rod 2 can move vertically relative to the lower clamping assembly 4, thereby achieving the contraction and expansion of the vulcanizing capsule 1. Specifically, when the central rod 2 moves upward, the distance between the lower clamping assembly 4 and the upper clamping assembly 3 increases, thus reducing the radius of the vulcanizing capsule 1 and causing it to contract. When the central rod 2 moves downward, the distance between the lower clamping assembly 4 and the upper clamping assembly 3 decreases, increasing the radius of the vulcanizing capsule 1. After the vulcanizing capsule 1 is filled with a gaseous medium, it expands. During the vulcanization process, the tire to be vulcanized needs to be placed on the vulcanizing capsule 1 beforehand, and then the central rod 2 descends, causing the vulcanizing capsule 1 to expand, thus tightly wrapping the tire around the vulcanizing capsule 1.

[0053] In this technical solution, an electromagnetic heating component 5 and a stirring component are installed inside the vulcanizing capsule 1, and both are coaxially fitted with the central rod 2. The electromagnetic heating coil heats the gas medium, and in conjunction with the air inlet 52 and evenly distributed air outlets 53 of the annular body, the rotating component 6 drives the gas medium to circulate rapidly inside and outside the annular body. Figure 3The arrows shown indicate the flow path of the gas medium circulating inside and outside the annular body under the action of the rotating component 6. The gas medium flows upward from the periphery of the annular body and enters the interior of the annular body through the air inlet 52, and then flows out from the outer side of the annular body through the circumferentially distributed air outlets 53. This can effectively promote the uniformity of gas medium distribution in the vulcanizing capsule 1. By utilizing this cyclical flow, the heat exchange efficiency between the electromagnetic heating component 5 and the gas medium is significantly improved. This effectively solves the problems of slow heating rate and low vulcanization efficiency in existing electric heating vulcanization equipment, improves the overall efficiency of tire vulcanization, and facilitates the smooth operation of tire vulcanization.

[0054] Regarding the structure of the ring-shaped body, in the preferred embodiment, such as Figure 4 As shown, the annular body is a split structure, including multiple heating rings 54 arranged vertically. Each heating ring 54 has an electromagnetic heating coil wound around its outer circumference. Air outlets 53 are provided between adjacent heating rings 54 and between the bottom heating ring 54 and the base 51. In this technical solution, the annular body is designed as a split structure containing multiple heating rings 54, with an electromagnetic heating coil wound around the outer circumference of each ring. Air outlets 53 are provided between adjacent heating rings 54 and between the bottom heating ring 54 and the base 51. This enhances the uniform distribution of the electromagnetic field, increases the uniformity of the gas medium distribution, and improves the uniformity and flexibility of heating, thereby increasing heating efficiency. Furthermore, the layered airflow control extends the gas medium heating path, effectively improving the overall heating rate. This helps to heat the gas medium inside the vulcanizing capsule 1 more quickly and uniformly, thus improving the effect and efficiency of tire vulcanization. In other alternative embodiments, the annular body can also be designed as a single-piece structure with multiple air outlets 53.

[0055] Furthermore, such as Figure 4 and Figure 5As shown, the electromagnetic heating assembly 5 also includes multiple layers of flow guiding assemblies arranged vertically. Adjacent heating rings 54 are separated by a flow guiding assembly, and the bottom heating ring 54 is separated from the base 51 by another flow guiding assembly. Each layer of flow guiding assembly includes multiple flow guiding elements 55 evenly distributed circumferentially. These multiple flow guiding elements 55 are inclined relative to the circumferential tangent of the heating ring 54, and the inclination direction is consistent. The sidewalls of two adjacent flow guiding elements 55 enclose an air outlet 53. Specifically, the heating rings 54 and the base can be fixedly connected to the flow guiding elements 55 by welding, screws, or other reasonable methods. The number of flow guiding elements 55 in each layer is preferably 6-30. The air outlet 53 is formed by the flow guide 55, which is inclined in the circumferential tangential direction relative to the heating ring 54. This can more rationally guide the flow of the gas medium. The gas medium generates a spiral airflow with tangential and radial velocities. The circulation flow inside and outside the ring is smoother and more orderly, which further optimizes the circulation path of the heating medium, enhances the heat transfer effect, improves the temperature uniformity of the gas medium, improves vulcanization efficiency, and ensures the consistency of tire vulcanization quality.

[0056] In a preferred embodiment, such as Figure 6 As shown, the inclination angle of each guide element 55 relative to the circumferential tangential direction of the annular body is set as α, where α is greater than or equal to 20° and less than or equal to 45°. This optimizes the ratio of tangential velocity to radial velocity of the airflow, enabling the gas medium to achieve the best guiding effect when passing through the guide element 55. This meets the requirements for airflow heating and circulation diversion, ensuring smooth circulation while improving the utilization rate of heat generated by electromagnetic heating, avoiding local heat accumulation or loss, and efficiently achieving heat transfer. This improves the heating rate and overall vulcanization efficiency of tire vulcanization.

[0057] In a preferred embodiment, such as Figure 5 and Figure 6As shown, one end of the flow guide 55 is the inner end 551 near the inner side of the heating ring 54, and the other end is the outer end 552. The cross-sectional area of ​​the flow guide 55 gradually increases from the inner end 551 to the outer end 552. The surface of the outer end 552 is set as an arc. The projection of the inner end 551 on the horizontal plane is located inside the projection of the heating ring 54 on the horizontal plane, and the outer end 552 protrudes out of the outer side of the heating ring 54. In this technical solution, the cross-sectional area of ​​the guide member 55 gradually increases from the inner end 551 to the outer end 552, and the surface of the outer end 552 is arc-shaped, so that the air outlet 53 gradually shrinks from the inside to the outside. This helps to increase the pressure when the gas medium is discharged from the air outlet 53 and enhance its diffusion speed. At the same time, the projection positions of the inner end 551 and the outer end 552 on the horizontal plane are reasonably set, that is, the inner end 551 does not protrude into the interior of the heating ring 54. This helps to reduce the flow resistance when the gas medium flows from the inside of the ring to the outside, so that the gas medium can be drawn in from the air inlet 52 and discharged through the air outlet 53 more efficiently. This enhances the stability of the gas medium circulation flow, further improves the heat transfer efficiency in the vulcanization process, and accelerates the heating process of tire vulcanization.

[0058] In a preferred embodiment, such as Figure 4 As shown, the guide elements 55 of the two adjacent layers of guide components are staggered in the vertical direction, so that the air outlet 53 formed by the two adjacent layers of guide elements 55 is also staggered in the vertical direction (complete staggering or partial staggering is allowed). This can avoid local turbulence or stagnation of the gas medium during the flow process, effectively avoid the collision loss of the upper and lower airflows, and make the circulation flow of the gas medium in the entire annular body and vulcanizing capsule 1 more uniform and sufficient, improve the overall heat distribution uniformity, and thus improve the quality and efficiency of tire vulcanization.

[0059] As a preferred embodiment of this application, such as Figure 1 As shown, the lower clamping assembly 4 has a through mounting hole 41, and a detachable ring seat 42 is connected inside the mounting hole. The seat body 51 is fixedly connected to the ring seat 42, and the ring seat 42 has a central guide hole 421 that guides the central rod 2 to move vertically. The ring seat 42 is detachably connected to the lower clamping assembly 4 to form a modular structure, which facilitates assembly. The central guide hole 421 ensures axial movement accuracy, and the detachable connection structure facilitates the replacement and maintenance of the vulcanizing capsule 1, improving the ease of use of the equipment. In a preferred embodiment, some sealing structures such as sealing rings can be provided between the central rod 2 and the central guide hole 421 to ensure the sealing of the inner cavity of the vulcanizing capsule 1.

[0060] Furthermore, such as Figure 1As shown, the ring seat 42 includes an inner cylinder 422 and an outer cylinder 423 sleeved on the outside of the inner cylinder 422. The outer cylinder 423 is threadedly connected to the lower clamping assembly 41. The inner hole of the inner cylinder 422 forms a central guide hole 421. A drive assembly for driving the rotating part 6 to rotate is installed between the outer cylinder 423 and the inner cylinder 422. The ring seat 42 adopts the structure of inner and outer cylinders 423 and arranges the drive assembly reasonably through threaded connections, which enhances the stability of the structure and facilitates the rotation of the rotating part 6, thereby agitating the gas medium, ensuring the normal operation of the agitation assembly, effectively maintaining the circulation of the gas medium, improving the heat transfer and utilization efficiency during vulcanization, and promoting efficient tire vulcanization. Regarding the driving method of the drive assembly for the rotating part 6, the drive assembly and the rotating part 6 can be directly connected to form a direct drive, indirectly connected to form an indirect drive, or non-contact connected to form a non-contact drive, such as magnetic drive. In a preferred embodiment, the drive assembly includes a motor 8 and a transmission drum 9 connected to the rotor of the motor 8. A rotating component 6 is connected to the transmission drum 9. The transmission drum 9 is spaced apart from the outer cylinder 423, and the transmission drum 9 is connected to the inner cylinder 422 via bearings 10. Specifically, one bearing 10 can be arranged at each of the upper and lower ends of the drum 9 to improve transmission reliability. Through the drive assembly consisting of the motor 8, transmission drum 9, etc., and the reasonable connection method between the components, such as the spaced arrangement of the transmission drum 9 with the outer cylinder 423 and its connection with the inner cylinder 422 via bearings 10, the power of the motor 8 can be stably and reliably transmitted to the rotating component 6, ensuring the continuous and stable rotation of the rotating component 6 and the continuous circulation of the gas medium. This guarantees the continuous and efficient operation of the electromagnetic heating vulcanization equipment, improving the efficiency and quality of tire vulcanization. Preferably, the rotating component 6 can be a fan, impeller, etc.

[0061] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0062] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A tire vulcanizing apparatus, comprising a vulcanizing bladder and a center rod, wherein the upper edge of the vulcanizing bladder is clamped by an upper clamping assembly, the lower edge of the vulcanizing bladder is clamped by a lower clamping assembly, and the upper end of the center rod is fixedly connected to the upper clamping assembly and is movable vertically relative to the lower clamping assembly, characterized in that, The tire vulcanizing equipment also includes: An electromagnetic heating assembly is disposed inside the vulcanizing capsule. It includes an annular body, a base supporting the annular body, and an electromagnetic heating coil wound circumferentially around the annular body. The base is fixedly connected to the lower clamping assembly. When the electromagnetic heating coil is energized, it heats the gas medium inside the vulcanizing capsule. The port at the upper shaft end of the annular body forms an air inlet. The electromagnetic heating assembly has multiple air outlets evenly distributed circumferentially. A stirring assembly, the stirring assembly including a rotating component disposed within the vulcanizing capsule; The electromagnetic heating component, the rotating component, and the central rod are coaxially sleeved from the outside to the inside. The rotating component can rotate along the axis of the central rod, and when rotating, it draws the gas medium from the air inlet into the interior of the annular body and then discharges it through the multiple air outlets, thereby causing the gas medium to circulate inside and outside the annular body.

2. The tire vulcanizing equipment according to claim 1, characterized in that, The annular body is designed as a split structure, including multiple heating rings arranged vertically in sequence. The electromagnetic heating coil is wound around the outer periphery of each heating ring. The air outlet is provided between two adjacent heating rings and between the heating ring at the bottom and the base.

3. The tire vulcanizing equipment according to claim 2, characterized in that, The electromagnetic heating assembly also includes a multi-layer flow guiding assembly arranged vertically. Two adjacent heating rings are separated by a layer of the flow guiding assembly, and the heating ring at the bottom is separated from the base by a layer of the flow guiding assembly. Each layer of the flow guiding assembly includes a plurality of flow guiding elements evenly distributed circumferentially. The plurality of flow guiding elements are inclined relative to the circumferential tangent direction of the heating ring and the inclination direction is consistent. The sidewalls of two adjacent flow guiding elements enclose and form the air outlet.

4. The tire vulcanizing equipment according to claim 3, characterized in that, The inclination angle of each of the flow guides relative to the circumferential tangent direction of the annular body is set as α, where α is greater than or equal to 20° and less than or equal to 45°.

5. The tire vulcanizing equipment according to claim 3, characterized in that, One end of the flow guide is an inner end near the inner side of the heating ring, and the other end is an outer end. The cross-sectional area of ​​the flow guide gradually increases from the inner end to the outer end, and the surface of the outer end is set in an arc shape. The projection of the inner end on the horizontal plane is located inside the projection of the heating ring on the horizontal plane, and the outer end protrudes out of the outer side of the heating ring.

6. The tire vulcanizing equipment according to claim 3, characterized in that, The flow guides of the two adjacent flow guide assemblies are staggered in the vertical direction.

7. The tire vulcanizing equipment according to claim 1, characterized in that, The lower clamping assembly has a through mounting hole, and a detachable ring seat is connected inside the mounting hole. The seat body is fixedly connected to the ring seat, and the ring seat has a central guide hole that guides the central rod to move in the vertical direction.

8. The tire vulcanizing equipment according to claim 7, characterized in that, The ring seat includes an inner cylinder and an outer cylinder sleeved on the outside of the inner cylinder. The outer cylinder is threadedly connected to the lower clamping assembly. The inner hole of the inner cylinder forms the central guide hole. A drive assembly for driving the rotating component to rotate is installed between the outer cylinder and the inner cylinder.

9. The tire vulcanizing equipment according to claim 8, characterized in that, The drive assembly includes a motor and a transmission drum connected to the rotor of the motor. The rotating component is connected to the transmission drum, and the transmission drum is spaced apart from the outer cylinder. The transmission drum and the inner cylinder are connected by bearings.

10. The tire vulcanizing equipment according to claim 1, characterized in that, The tire vulcanizing equipment also includes a mold, which includes an upper mold and a lower mold. When the upper mold and the lower mold are closed, they form a vulcanizing cavity. The vulcanizing capsule is placed in the vulcanizing cavity, and the tire to be vulcanized can be clamped between the mold and the vulcanizing capsule.

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