A tire vulcanization apparatus

Abstract

The application relates to the technical field of vulcanization devices, and discloses a tire vulcanization device, which comprises a vulcanization mold, a vulcanization capsule, a supporting assembly and a center rod, and further comprises a heating device arranged in the vulcanization capsule, wherein the heating device is provided with a plurality of heating channels, an air inlet is arranged at the axial end of the heating device, and the plurality of heating channels are arranged along the axial direction of the heating device; a gas circulation device is arranged in the heating device, the gas circulation device is provided with a plurality of air outlets located on the flow path of the gas medium, and the plurality of air outlets are arranged along the axial direction of the gas circulation device; wherein the plurality of air outlets and the plurality of heating channels are in communication. The gas circulation device is arranged in the heating device, the plurality of air outlets and the plurality of heating channels are in communication, the gas medium can be guided to different heating channels from different air outlets, the gas medium can be heated in a shunt mode, the heating efficiency of the gas medium is improved, and the heating rate of the inner cavity of the vulcanization capsule is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vulcanization devices, in particular to a tire vulcanization device. BACKGROUND

[0002] In industrial production, vulcanization is often used to improve the overall hardness of certain materials.

[0003] Taking tire vulcanization as an example, tire vulcanization refers to the vulcanization of the outer tire, which is carried out by using a model to pressurize. Before tire vulcanization, the plastic rubber is viscoelastic and has low strength, and is easy to deform and has no use value. Through vulcanization, the plastic rubber is solidified to become high-elasticity rubber with use value.

[0004] A conventional electric heating vulcanization machine needs to set a heating device and a gas circulation device inside a vulcanization capsule to heat and circulate the gas medium inside the vulcanization capsule, so as to ensure the uniformity of the tire heating temperature during vulcanization.

[0005] However, in the above scheme, the gas medium sent by the gas circulation device to the heating device cannot flow through the heating device uniformly, which reduces the heating efficiency of the heating device and leads to a low heating rate of the inner cavity of the vulcanization capsule, thereby affecting the tire vulcanization quality. SUMMARY

[0006] Therefore, the present application provides a tire vulcanization device to solve the problem of low heating efficiency of the heating device arranged inside the vulcanization capsule in the existing tire vulcanization device.

[0007] Embodiments of the present application provide a tire vulcanization device, comprising:

[0008] A vulcanization mold is provided, which is openable and closable and has a vulcanization cavity formed inside;

[0009] A vulcanization capsule is adapted to be placed in the vulcanization cavity;

[0010] A support assembly comprises a center rod and a clamping device arranged on the center rod, and the clamping device is adapted to sealably install the vulcanization capsule in the vulcanization cavity;

[0011] The tire vulcanization device further comprises:

[0012] A heating device is arranged inside the vulcanization capsule, and the heating device is provided with an air inlet and a plurality of heating channels located on the flow path of the gas medium. The air inlet is arranged at the axial end of the heating device, and the plurality of heating channels are arranged along the axial direction of the heating device.

[0013] A gas circulating device is arranged in the heating device, and the gas circulating device is provided with a plurality of air outlets located on the flow path of the gas medium, and the plurality of air outlets are arranged along the axial direction of the gas circulating device.

[0014] The plurality of air outlets are in communication with the plurality of heating channels.

[0015] Beneficial effects: The tire vulcanizing equipment provided by the application arranges the gas circulating device in the heating device, and the heating device and the gas circulating device are respectively provided with a plurality of heating channels and a plurality of air outlets in the axial direction, and the plurality of air outlets are in communication with the plurality of heating channels, so that the gas medium can be guided to different heating channels from different air outlets, the heating efficiency of the gas medium is improved, and the temperature rising rate of the inner cavity of the vulcanizing capsule is improved.

[0016] In an alternative embodiment, the plurality of air outlets and the plurality of heating channels are arranged one by one.

[0017] Beneficial effects: Each air outlet corresponds to a heating channel, directional flow control of the gas medium is realized, and it is ensured that the gas medium discharged from each air outlet can enter different heating channels to be heated, so that the heating efficiency of the gas medium is improved.

[0018] In an alternative embodiment, the heating device is provided with an air inlet, the plurality of air outlets include a first air outlet and a plurality of second air outlets, and the first air outlet is arranged at the axial end of the plurality of second air outlets and close to the air inlet along the axial direction of the gas circulating device.

[0019] The first air outlet includes a first end away from the second air outlet and a second end close to the second air outlet, and the side wall of the first air outlet gradually expands from the first end to the second end.

[0020] Beneficial effects: The first air outlet is arranged close to the air inlet of the heating device on the gas circulating device, and the first air outlet is gradually expanded, so that the gas medium can be partially flowed by the first air outlet, and the space of the remaining gas medium is expanded and the speed is reduced during the continuous movement along the axial direction, so that the remaining gas medium can pass through the plurality of first air outlets to different heating channels more uniformly, and the heating uniformity and the heating efficiency of the gas medium are improved.

[0021] In an alternative embodiment, the gas circulating device includes:

[0022] A plurality of fixed rings are arranged along the axial direction, and a flow guide cylinder is arranged on the fixed ring located at the axial end and close to the air inlet, and the side wall of the flow guide cylinder gradually expands from the first end to the second end.

[0023] a first stirring vane group is circumferentially and uniformly distributed on the outer wall of the flow guide cylinder, and the fixed ring at the axial end, the flow guide cylinder and the first stirring vane group cooperatively form the first air outlet part;

[0024] a plurality of second stirring vane groups are circumferentially and uniformly distributed between adjacent two fixed rings, and the second air outlet part is formed between the adjacent two fixed rings.

[0025] Beneficial effects: The flow guide cylinder cooperates with the plurality of fixed rings to effectively divide the gas medium, so that the gas medium can flow more uniformly in different air outlet parts, and the first stirring vane group and the plurality of second stirring vane groups can guide the flow of the gas medium, effectively realizing the circulation of the gas medium.

[0026] In an alternative embodiment, the first stirring vane of the first stirring vane group is curved in the axial and radial directions of the gas circulation device.

[0027] Beneficial effects: The first stirring vane is curved in the axial and radial directions, which can guide the flow of the gas medium while reducing the speed of the gas medium flowing to the fixed ring at the axial end, thereby avoiding the rebound of the gas medium when contacting the fixed ring at the axial end, so that the gas medium can flow to the heating channel.

[0028] In an alternative embodiment, the heating device comprises a plurality of heating rings arranged in the axial direction, and the heating channel is formed between adjacent two heating rings, and a flow guide vane group is circumferentially and uniformly arranged between the adjacent two heating rings.

[0029] Beneficial effects: The flow guide vane group can support the adjacent heating rings, and can also separate the heating channel into a plurality of sub-channels, thereby guiding the flow of the gas medium while increasing the heat exchange area of the gas medium.

[0030] In an alternative embodiment, the flow guide vanes of the flow guide vane group of the adjacent layers are circumferentially staggered, and the projections of the flow guide vanes of the adjacent layers on the fixed ring at least partially do not overlap.

[0031] Beneficial effects: The flow guide vanes of the adjacent layers are staggered, which can further improve the flow field, avoid the gas medium at the same position in the axial direction from being mostly rushed to the bottom of the heating device under the action of the inertial force, thereby making the gas medium more uniformly distributed in the plurality of air outlet parts and the plurality of heating channels, and improving the heating efficiency.

[0032] In an alternative embodiment, the flow guide vane has an included angle with the tangential direction of the rotation of the fixed ring.

[0033] And / or, the guide vane has an inner end close to the fixed ring and an outer end away from the fixed ring, and the thickness of the guide vane is gradually increased from the inner end to the outer end.

[0034] Beneficial effects: the extension direction of the guide vane and the tangent direction of the fixed ring are provided with an included angle, and the thickness of the guide vane is gradually increased, which can improve the guide effect of the gas medium, and improve the internal temperature uniformity of the vulcanization capsule.

[0035] In an alternative embodiment, the end surface of the fixed ring and the heating ring is flush in the axial direction;

[0036] And / or, the inner side wall of the heating ring is provided with a guide slope.

[0037] Beneficial effects: the end surface of the fixed ring and the heating ring is flush, and the inner side wall of the heating ring is provided with a guide slope, which can weaken the flow resistance of the gas medium, so that the gas medium can easily enter the heating channel from the air outlet.

[0038] In an alternative embodiment, the clamping device comprises a ring seat, the center rod is arranged in the ring seat, and the heating device and the ring seat are fixed;

[0039] The gas circulation device further comprises a driving member, and the driving member is in transmission connection with the plurality of air outlets to drive the plurality of air outlets to rotate relative to the heating device.

[0040] Beneficial effects: the ring seat is used to support the heating device, and the driving member is used to drive the air outlet to rotate relative to the heating device, so that the gas medium in the vulcanization capsule can enter the heating device through the air inlet of the heating device under the cooperation of the driving member and the air outlet, and pass through different heating channels guided by different air outlets, thereby improving the heating effect of the gas medium. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0042] Figure 1 It is a structure schematic view of a tire vulcanization equipment according to an embodiment of the present application;

[0043] Figure 2 It is a structure schematic view of the position relationship between the heating device and the gas circulation device according to an embodiment of the present application;

[0044] Figure 3 A structure schematic diagram of a gas circulating device of an embodiment of the present application;

[0045] Figure 4 A structure schematic diagram of a heating device of an embodiment of the present application;

[0046] Figure 5 A structure schematic diagram of a position relationship of adjacent layer guide vanes of an embodiment of the present application.

[0047] Explanation of reference signs:

[0048] 1. Curing bladder

[0049] 2. Center rod; 3. Clamping device; 301. Ring seat; 302. Upper clamping assembly; 303. Lower clamping assembly

[0050] 4. Heating device; 401. Air inlet; 402. Heating channel; 403. Heating ring; 404. Guide vane group; 4041. Guide vane

[0051] 5. Gas circulating device; 51. First air outlet; 52. Second air outlet

[0052] 501. Fixed ring; 502. Guide cylinder; 503. First stirring vane group; 5031. First stirring vane; 504. Second stirring vane group

[0053] 6. Driving member; 7. Support ring cylinder; 8. Rotation shaft; 9. Guide cover; 10. Support structure DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0055] The embodiments of the present application will be described below in combination with Figures 1-5 The embodiments of the present application will be described below in combination with

[0056] According to the embodiments of the present application, a tire curing equipment is provided, which comprises a curing mold, a curing bladder 1, a center rod 2, a clamping device 3, a heating device 4 and a gas circulating device 5, etc.

[0057] The vulcanization mold is openable and closable, and has a vulcanization cavity formed inside; the vulcanization capsule 1 is suitable for being placed in the vulcanization cavity; the supporting assembly includes a center rod 2 and a clamping device 3 arranged on the center rod 2, and the clamping device 3 is suitable for sealingly mounting the vulcanization capsule 1 in the vulcanization cavity.

[0058] Specifically, as shown in Figure 1 , the clamping device 3 includes an upper clamping assembly 302 and a lower clamping assembly 303, and the vulcanization mold (not shown in the figure) is of an upper and lower structure. The upper end of the vulcanization mold cooperates with the liftable center rod 2 and the upper clamping assembly 302. After the upper and lower ends of the vulcanization mold are separated, the center rod 2 can be lifted to make the vulcanization capsule 1 fold, and the green tire to be vulcanized is placed in the vulcanization cavity. When the upper end of the vulcanization mold is lowered, the upper and lower ends of the vulcanization mold are closed, and the vulcanization mold is provided with a closing force by the vulcanizing machine during the vulcanization process. The vulcanization capsule 1 is a hollow thin-walled rubber product of the vulcanizing machine, which is used to load the green tire to be vulcanized and then introduce a gas medium, and cooperate with the vulcanizing machine to perform shaping and vulcanization operation. The gas medium is water vapor or inert gas or noble gas, as long as it does not participate in the oxidation-reduction reaction. In this embodiment, nitrogen can be further selected. The clamping device 3 arranged on the center rod 2 is suitable for sealing the vulcanization capsule 1 to avoid leakage of the gas medium.

[0059] The heating device 4 is arranged in the vulcanization capsule 1. The heating device 4 is provided with an air inlet 401 located on the flow path of the gas medium and a plurality of heating channels 402. The air inlet 401 is arranged at the axial end of the heating device 4, and the plurality of heating channels 402 are arranged along the axial direction of the heating device 4. The gas circulation device 5 is arranged in the heating device 4. The gas circulation device 5 is provided with a plurality of air outlets located on the flow path of the gas medium. The plurality of air outlets are arranged along the axial direction of the gas circulation device 5. The plurality of air outlets and the plurality of heating channels 402 are in communication.

[0060] Further, the number of air outlets and heating channels 402 in the axial direction is preferably 3-5.

[0061] Specifically, as shown in Figure 4 , the heating device 4 is preferably arranged in a cylindrical structure. The axial direction of the heating device 4 and the axial direction of the gas circulation device 5 are arranged in parallel with the axial direction of the vulcanization capsule 1. The following is an exemplary description of the height direction of the vulcanization capsule 1 as the vertical arrangement of the vulcanization capsule 1.

[0062] The heating device 4 and the gas circulation device 5 are arranged in the vulcanization capsule 1. The heating device 4 is centrally provided with a containing cavity for containing the gas circulation device 5. The gas circulation device 5 is centrally provided with a through hole for the center rod 2 to pass through.

[0063] The top of the heating device 4 is provided with an air inlet 401. When the gas circulation device 5 is rotating, the gas medium in the vulcanization capsule 1 enters the heating device 4 through the air inlet 401, and then enters the gas circulation device 5. The gas medium flows from the top to the bottom of the gas circulation device 5, and is discharged from different heights of the gas circulation device 5 during the flow process. The discharged gas medium is sent to different heights of the heating channels 402 of the heating device 4. The gas medium is heated when passing through the heating channels 402, and is guided to the inner wall of the vulcanization capsule 1 after being discharged from the heating channels 402, thereby realizing the heating circulation of the gas medium. In this way, the gas medium in the vulcanization capsule 1 can be guided to different heating channels 402 from different air outlets, thereby realizing the shunt heating of the gas medium, improving the heating efficiency of the gas medium, and increasing the temperature rising rate of the inner cavity of the vulcanization capsule 1.

[0064] Further, the spacing between the outer diameter of the gas circulation device 5 and the inner diameter of the heating device 4 is preferably less than 2 mm. With this arrangement, the gas medium can be prevented from leaking along the height direction between the gas circulation device 5 and the heating device 4 during the process of flowing from the air outlet to the heating channel 402.

[0065] Further, the heating device 4 can be an electric resistance heater, an induction heater, an infrared heater, a heat exchanger, etc.

[0066] Further, the ring seat 301 is provided with a gas medium inlet and outlet for the gas medium to enter and exit the vulcanization capsule 1. The gas medium inlet and outlet can be provided with one, and the gas medium enters and exits the interior of the vulcanization capsule 1 through the inlet and outlet. Of course, the gas medium inlet and outlet can be provided with two, one of which is used as a gas medium inlet and the other is used as a gas medium outlet.

[0067] Further, the outer periphery of the heating device 4 is provided with a flow guide cover 9, one end of which is fixed to the heating device 4, and the other end is preferably fixed through a support structure 10 and a lower clamping assembly 303. A gap is provided between the bottom of the flow guide cover 9 and the lower clamping assembly 303, and the flow guide cover 9 is provided in a tapered structure, which gradually expands from top to bottom along the height direction of the vulcanization capsule 1.

[0068] In this way, the gas medium discharged from the plurality of heating channels 402 is mixed and guided by the flow guide cover 9, and is discharged to the inner wall of the vulcanization capsule 1 through the gap between the flow guide cover 9 and the lower clamping assembly 303, which can optimize the flow field of the gas medium and make the gas medium more evenly distributed in the interior space of the vulcanization capsule 1.

[0069] The support structure 10 described above can be one or a combination of a support plate, a support rod, or a support frame.

[0070] In one embodiment, as shown inFigure 1 , Figure 2 As shown, multiple air outlets are configured in a one-to-one correspondence with multiple heating channels 402.

[0071] Specifically, multiple air outlets and multiple heating channels 402 are arranged along the height direction. That is, multiple air outlets are arranged along the height direction, and each air outlet corresponds to one heating channel 402. The multiple air outlets realize the directional diversion control of the gas medium. At the same height, the gas medium discharged from the air outlet can be sent to the heating channel 402 at the corresponding height, ensuring that the gas medium discharged from each air outlet can enter a different heating channel 402 for heating, thereby improving the heating efficiency of the gas medium.

[0072] In one specific implementation, it is assumed that the total flow rate of the gas medium entering the air inlet 401 is Q, the number of air outlets and heating channels 402 is n, and the flow rate through each air outlet and heating channel 402 is q = Q / n * (±5%).

[0073] In one embodiment, such as Figure 3 As shown, the plurality of air outlets include a first air outlet 51 and a plurality of second air outlets 52. Along the axial direction of the gas circulation device 5, the first air outlet 51 is disposed at the axial end of the plurality of second air outlets 52 and close to the air inlet 401; wherein, the first air outlet 51 includes a first end away from the second air outlet 52 and a second end close to the second air outlet 52, and the sidewall of the first air outlet 51 gradually expands from the first end to the second end.

[0074] Specifically, the heating device 4 has an air inlet 401 at its top, and multiple air outlets are divided into a first air outlet 51 and multiple second air outlets 52. The first air outlet 51 and multiple second air outlets 52 are arranged along the height direction, with the first air outlet 51 located at the top and close to the air inlet 401. The sidewall of the first air outlet 51 is gradually widened, and the inner diameter of the top opening of the first air outlet 51 is smaller than the inner diameter of the bottom opening. The sidewall is preferably set as an arc-shaped surface. In this way, after the gas medium enters through the air inlet 401, the gas medium is divided. A portion of the gas medium is guided by the outer wall of the first air outlet 51 to the corresponding heating channel 402 for heating, while the remaining portion of the gas medium enters the gas circulation device 5 through the top opening of the first air outlet 51. As this portion of the gas medium moves towards the bottom of the gas circulation device 5, it is guided by the second air outlets 52 located at different heights to the corresponding heating channel 402 for heating.

[0075] The first air outlet part 51 is gradually expanded, and the space inside the first air outlet part 51 gradually increases from top to bottom, so that the gas medium entering the first air outlet part 51 expands and the speed decreases in the process of continuing to move in the height direction, so that the remaining gas medium can pass through the plurality of first air outlet parts 51 to different heating channels 402 more uniformly. In this way, it can be avoided that the flow of gas medium passing through part of the heating channels 402 is relatively small, causing the heating structure in the part of the heating channels 402 to be overheated and damaged, and it can also be avoided that the flow of gas passing through part of the heating channels 402 is relatively large, causing the part of the heating channels 402 to be unable to sufficiently heat the gas medium, resulting in a slow heating speed. At the same time, through the cooperation of the first air outlet part 51 and the plurality of second air outlet parts 52, the plurality of heating channels 402 can uniformly discharge the gas medium, fully circulate the gas medium, and improve the uniformity of the temperature field in the vulcanization capsule 1.

[0076] In one embodiment, the gas circulation device 5 comprises: a plurality of fixed rings 501 arranged in the axial direction, wherein the fixed ring 501 located at the axial end and close to the air inlet 401 is provided with a flow guide cylinder 502, and the side wall of the flow guide cylinder 502 from the first end to the second end is gradually expanded; a first stirring vane group 503 is uniformly distributed on the outer wall of the flow guide cylinder 502 in the circumferential direction, and the fixed ring 501 located at the axial end, the flow guide cylinder 502 and the first stirring vane group 503 cooperate to form the first air outlet part 51; a plurality of second stirring vane groups 504 are respectively uniformly distributed in the circumferential direction between adjacent two fixed rings 501, and the second air outlet part 52 is formed between the adjacent two fixed rings 501.

[0077] Specifically, as shown in Figure 3 The second stirring vane group 504 is arranged between the adjacent fixed rings 501, the second stirring vane group 504 is used for supporting the two adjacent fixed rings 501, the flow guide cylinder 502 is fixed on the top surface of the uppermost fixed ring 501, the first stirring vane group 503 is fixed on the outer wall surface of the flow guide cylinder 502, and part of the first stirring vane group 503 is preferably fixed on the top surface of the uppermost fixed ring 501, so as to improve the installation strength of the first stirring vane group 503 and improve the flow guiding effect of the first stirring vane group 503.

[0078] The plurality of fixed rings 501, the flow guide cylinder 502, the first stirring vane group 503 and the plurality of second stirring vane groups 504 cooperate to form a cylindrical structure with a containing space in the height direction, and the cylindrical structure can rotate relative to the heating device 4. When the cylindrical structure rotates relative to the heating device 4, the gaseous medium in the vulcanization capsule 1 enters the heating device 4 through the air inlet 401, part of the gaseous medium is guided along the outer wall of the flow guide cylinder 502 to the corresponding height of the heating channel, and the remaining part of the gaseous medium enters the flow guide cylinder 502 and moves downward, and enters between different adjacent two fixed rings 501 in the movement process. In this way, the gaseous medium can be effectively divided, the uniformity of the heated gaseous medium is improved, and the efficiency of the heated gaseous medium is improved.

[0079] In one embodiment, the first stirring vanes 5031 of the first stirring vane group 503 are curved in the axial and radial directions of the gas circulation device 5.

[0080] Specifically, as shown in Figure 3 , the plurality of first stirring vanes 5031 are uniformly arranged along the circumference of the flow guide cylinder 502, and the first stirring vanes 5031 are curved in the axial and radial directions, which can realize the guiding of the gaseous medium while weakening the speed of the gaseous medium flowing to the top surface of the uppermost fixed ring 501, avoiding the rebound of the gaseous medium when it contacts the top surface of the uppermost fixed ring 501, thereby avoiding the conflict between the rebounding gaseous medium and the gaseous medium entering the air inlet 401, and further enabling the gaseous medium to flow to different heating channels 402.

[0081] Further, the number of first stirring vanes 5031 of the first stirring vane group 503 is preferably 6-30. The number of stirring vanes of the second stirring vane group 504 is also preferably 6-30.

[0082] In one embodiment, the heating device 4 includes a plurality of heating rings 403 arranged in the axial direction, a heating channel 402 is formed between adjacent two heating rings 403, and a flow guide vane group 404 is arranged between adjacent two heating rings 403.

[0083] Specifically, as shown in Figure 4 , the plurality of heating rings 403 are arranged in the height direction, and the flow guide vane group 404 is arranged between adjacent two heating rings 403, which can support the adjacent heating rings 403. The heat on the heating ring 403 is transferred to the flow guide vane group 404, the plurality of flow guide vanes 4041 of the flow guide vane group 404 divide the heating channel 402 into a plurality of sub-channels, and guide the gaseous medium while increasing the heat exchange area with the gaseous medium. In a specific embodiment, as shown in Figure 1 , Figure 2As shown, the heating ring 403 is provided with an electromagnetic heating coil around the outer periphery, or a resistance heating tube around the outer periphery of the heating ring 403.

[0084] In an optional embodiment, the heating channel 402 at the uppermost position is correspondingly arranged with the first air outlet part 51. According to actual working condition requirements, the heating structure can be optionally arranged on the heating ring 403 at the uppermost position or not arranged.

[0085] In an embodiment, the guide vanes 4041 of the adjacent layers of the guide vane group 404 are arranged in a circumferential staggered manner, and the projections of the guide vanes 4041 of the adjacent layers on the fixed ring 501 at least partially do not overlap.

[0086] Specifically, as shown in Figure 4 , Figure 5 , the guide vanes 4041 of the adjacent layers are arranged in a staggered manner in the height direction, which can further improve the flow field in the heating device 4, avoid the gas medium at the same position in the axial direction from being mostly rushed to the bottom of the heating device 4 under the action of the inertial force, and thus make the gas medium more evenly distributed in the multiple air outlet parts and the multiple heating channels 402, thereby improving the heating efficiency.

[0087] Further, the number of the guide vanes 4041 of each guide vane group 404 is set to 6-30.

[0088] In an embodiment, the extension direction of the guide vane 4041 is provided with an included angle with the tangential direction of the fixed ring 501; and / or, the guide vane 4041 has an inner end close to the fixed ring 501 and an outer end away from the fixed ring 501, and the thickness of the guide vane 4041 is gradually increased from the inner end to the outer end.

[0089] Specifically, as shown in Figure 5 , the outer end of the guide vane 4041 is provided with a circular arc structure, which can better guide the gas medium and improve the uniformity of the temperature inside the vulcanization capsule 1. The extension direction of the guide vane 4041 is provided with an included angle with the tangential direction of the fixed ring 501, and the thickness of the guide vane 4041 is gradually increased, which can improve the guiding effect of the gas medium and improve the uniformity of the temperature inside the vulcanization capsule 1.

[0090] Further, the included angle between the extension direction of the guide vane 4041 and the tangential direction of the fixed ring 501 is preferably set to 25-35°.

[0091] In an embodiment, the fixed ring 501 is provided in flush with the end face of the heating ring 403 in the axial direction; and / or, the inner side wall of the heating ring 403 is provided with a guide slope.

[0092] Specifically, as shown in Figure 1 ,Figure 2 As shown, the fixed ring 501 and the heating ring 403 each have a top surface and a bottom surface in the height direction, and the end surfaces of the fixed ring 501 and the heating ring 403 are flush, which can avoid the heating ring 403 blocking the gas medium and weakening the flow resistance of the gas medium during the flow of the gas medium from the air outlet to the heating channel 402. In addition, a flow guide inclined surface is arranged on the inner wall of the heating ring 403 close to the fixed ring 501, the flow guide inclined surface reduces the thickness of the end of the heating ring 403 close to the fixed ring 501, which can further weaken the flow resistance of the gas medium and make the gas medium easily enter the heating channel 402.

[0093] In an embodiment, the clamping device 3 comprises a ring seat 301, the center rod 2 is arranged in the ring seat 301, and the heating device 4 is fixed with the ring seat 301; the gas circulating device 5 further comprises a driving member 6, the driving member 6 is in transmission connection with the plurality of air outlets to drive the plurality of air outlets to rotate relative to the heating device 4.

[0094] Specifically, as shown in Figure 1 , Figure 2 , the ring seat 301 is fixed with a support ring cylinder 7 at the bottom end, and the center rod 2 is arranged in the support ring cylinder 7 and the ring seat 301 in sequence.

[0095] Among them, the two adjacent fixed rings 501 are connected and fixed by the second stirring vane group 504, the driving member 6 is connected with one of the fixed rings 501, and the synchronous driving of all the fixed rings 501 can be realized.

[0096] In a specific embodiment, as shown in Figure 1 , Figure 2 , the driving member 6 is a driving motor, the rotating end of the driving motor is arranged in the ring seat 301, the rotating end of the driving motor is connected with a rotating shaft 8, the rotating shaft 8 is arranged outside the center rod 2, and one end of the rotating shaft 8 is connected with the fixed ring 501 located at the lowermost position.

[0097] Of course, in addition to the above arrangement, the driving member 6 can also be driven and connected with the fixed ring 501 in a magnetic transmission mode.

[0098] In this way, the heating device 4 is supported by the ring seat 301, and the air outlet is driven to rotate relative to the heating device 4 by the driving member 6, so that the gas medium in the vulcanization capsule 1 can enter the heating device 4 through the air inlet 401 of the heating device 4 under the cooperation of the driving member 6 and the air outlet, and pass through different heating channels 402 guided by different air outlets, thereby improving the heating effect of the gas medium.

[0099] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A tire vulcanization apparatus characterized by, The application relates to a tire vulcanization device. The tire vulcanization device comprises a vulcanization mold which is openable and closable and has a vulcanization cavity inside; a vulcanization capsule (1) which is suitable for being placed in the vulcanization cavity; a support assembly which comprises a center rod (2) and clamping devices (3) arranged on the center rod (2), the clamping devices (3) being suitable for sealingly mounting the vulcanization capsule (1) in the vulcanization cavity. The tire vulcanization device further comprises: a heating device (4) arranged in the vulcanization capsule (1), the heating device (4) being provided with an air inlet (401) and a plurality of heating channels (402) on the flow path of the gas medium, the air inlet (401) being arranged at the axial end of the heating device (4), and the plurality of heating channels (402) being arranged in the axial direction of the heating device (4); a gas circulation device (5) arranged in the heating device (4), the gas circulation device (5) being provided with a plurality of air outlets on the flow path of the gas medium, and the plurality of air outlets being arranged in the axial direction of the gas circulation device (5); wherein the plurality of air outlets and the plurality of heating channels (402) are in communication; the plurality of air outlets comprises a first air outlet (51) and a plurality of second air outlets (52), and in the axial direction of the gas circulation device (5), the first air outlet (51) is arranged at the axial end of the plurality of second air outlets (52) and is close to the air inlet (401); wherein the first air outlet (51) comprises a first end away from the second air outlet (52) and a second end close to the second air outlet (52), and the side wall of the first air outlet (51) from the first end to the second end is gradually expanded; the gas circulation device (5) comprises: a plurality of fixed rings (501) arranged in the axial direction, wherein the fixed ring (501) located at the axial end and close to the air inlet (401) is provided with a flow guide cylinder (502), and the side wall of the flow guide cylinder (502) from the first end to the second end is gradually expanded; a first stirring vane group (503) which is uniformly distributed on the outer wall of the flow guide cylinder (502) in the circumferential direction, and the fixed ring (501) located at the axial end, the flow guide cylinder (502) and the first stirring vane group (503) cooperate to form the first air outlet (51); a plurality of second stirring vane groups (504) which are respectively uniformly distributed between adjacent two fixed rings (501) in the circumferential direction, and the second air outlet (52) is formed between adjacent two fixed rings (501). The plurality of air outlets and the plurality of heating channels (402) are arranged one by one. The first stirring vane (5031) of the first stirring vane group (503) is arranged in the axial and radial directions of the gas circulation device (5).

2. The tire curing apparatus according to claim 1, wherein, The heating device (4) comprises a plurality of heating rings (403) arranged in the axial direction, the heating channel (402) is formed between adjacent two heating rings (403), and a flow guide vane group (404) is uniformly distributed in the circumferential direction between adjacent two heating rings (403).

3. The tire curing apparatus according to claim 1, wherein, ​ 4. The tire curing apparatus of claim 1 wherein, ​ 5. Tyre vulcanisation apparatus according to claim 4, characterised in that, The guide vanes (4041) of the guide vane groups (404) of adjacent layers are arranged in a circumferential staggered manner, and projections of the guide vanes (4041) of adjacent layers on the fixing ring (501) at least partially do not overlap.

6. The tire curing apparatus of claim 4 wherein, An angle is arranged between an extension direction of the guide vanes (4041) and a tangential direction of rotation of the fixing ring (501). And / or, the guide vanes (4041) have inner ends close to the fixing ring (501) and outer ends away from the fixing ring (501), and the thickness of the guide vanes (4041) is gradually increased from the inner end to the outer end.

7. The tire curing apparatus of claim 4 wherein, End faces of the fixing ring (501) and the heating ring (403) are arranged in a flush manner in the axial direction. And / or, a guide inclined surface is arranged on an inner side wall of the heating ring (403).

8. The tire curing apparatus of claim 1 wherein, The clamping device (3) comprises a ring seat (301), the center rod (2) is arranged in the ring seat (301), the heating device (4) is fixed with the ring seat (301); The gas circulating device (5) further comprises a driving member (6), the driving member (6) is in transmission connection with a plurality of the air outlet portions, so as to drive a plurality of the air outlet portions to rotate relative to the heating device (4).

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