Tire vulcanization capsule heating assembly, vulcanization capsule, vulcanization machine and heating method

Abstract

The application discloses a kind of tire vulcanization capsule heating components, it is related to tire vulcanization technical field, including heat exchange mechanism and air guide mechanism;Heat exchange mechanism is used to set in capsule body;Heat exchange mechanism has the medium inlet and medium outlet of intercommunication outside, heat exchange mechanism also has the gas inlet and gas outlet of intercommunication in capsule body;Medium inlet can be passed into hot medium, medium outlet can discharge and heat exchange mechanism after heat exchange cooling hot medium;Air guide mechanism is used to set on ring seat, air guide mechanism can drive gas in capsule body to enter and discharge heat exchange mechanism respectively by gas inlet and gas outlet, and capsule body gas can be heat exchanged to heat in heat exchange mechanism.The tire vulcanization capsule heating components, vulcanization capsule, vulcanization machine and heating method provided by the application can improve the vulcanization quality and efficiency of tire, and can save energy consumption.The application also provides a kind of vulcanization capsule, vulcanization machine and heating method.

Description

Technical Field

[0001] This invention relates to the field of tire vulcanization technology, and in particular to a tire vulcanization bladder heating assembly, vulcanization bladder, vulcanizing machine, and heating method. Background Technology

[0002] The current mainstream tire vulcanization process involves filling the bladder with saturated steam followed by high-pressure nitrogen to pressurize and heat it internally. After vulcanization, the mixed gas is discharged. During vulcanization, the tire blank absorbs only a small amount of heat, with most of the steam being emitted as waste heat. This wastes energy and pollutes the environment. In addition, condensate from the saturated steam inside the bladder accumulates on the lower side of the bladder, causing the lower tire sidewall to be colder, affecting vulcanization efficiency and tire quality. Some equipment now uses electric heating to improve the temperature difference between the top and bottom of the tire blank, but the price of electricity for the same amount of heat is significantly higher than that of saturated steam. Moreover, electric heating equipment requires additional investment in electrical equipment and has a longer construction period. Summary of the Invention

[0003] The purpose of this invention is to provide a tire vulcanizing bladder heating assembly, vulcanizing bladder, vulcanizing machine, and heating method to solve the problems existing in the prior art, improve the vulcanization quality and efficiency of tires, and save energy.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a heating assembly for a tire vulcanizing bladder, comprising a heat exchange mechanism and a wind guide mechanism. The heat exchange mechanism is disposed within the bladder body. The heat exchange mechanism has a medium inlet and a medium outlet communicating with the outside, and also has an air inlet and an air outlet communicating with the inside of the bladder body. The medium inlet allows the introduction of a hot medium, and the medium outlet allows the discharge of the hot medium after heat exchange and cooling with the heat exchange mechanism. The wind guide mechanism is disposed on a ring seat and drives the gas inside the bladder body to enter and exit the heat exchange mechanism through the air inlet and air outlet, respectively, allowing the gas inside the bladder body to exchange heat and rise in temperature within the heat exchange mechanism.

[0005] Preferably, the heat exchange mechanism includes a heat exchange ring cylinder and a plurality of heat exchange fins circumferentially distributed on the inner side of the heat exchange ring cylinder; the air inlet and the air outlet are respectively set on the two sides of the middle of the heat exchange ring cylinder; the heat exchange ring cylinder has the medium inlet and the medium outlet; and the air guide mechanism is placed between the heat exchange ring cylinder and the ring seat.

[0006] Preferably, the air guiding mechanism includes a motor assembly, which includes a rotor component, a stator component, and a drive shaft; the stator component is fixedly sleeved inside the ring seat, the rotor component is fixedly sleeved outside the drive shaft, and the drive shaft is rotatably connected to the ring seat through a bearing component; an impeller component is fixedly disposed at the output end of the drive shaft, and the impeller component is placed between the heat exchange mechanism and the ring seat; after the motor assembly is energized, the drive shaft can drive the impeller component to rotate synchronously in the forward or reverse direction, and the rotation speed can be adjusted so as to drive the gas inside the capsule to enter and exit the heat exchange mechanism through the air inlet and the air outlet, respectively.

[0007] Preferably, the drive shaft is made of a different material from the inner ring of the bearing component, and the thermal expansion coefficient of the drive shaft is greater than that of the inner ring. During the heating process, the drive shaft can thermally expand to the point where the inner ring of the bearing is tightly fitted with an interference fit. During the cooling process, the drive shaft can shrink to the point where the inner ring of the bearing is loosely fitted with a clearance fit.

[0008] Preferably, it further includes a medium pipeline connecting the medium inlet and the medium outlet respectively, the medium pipeline being used to pass through the ring seat in a direction parallel to the axial direction of the ring seat; the medium inlet and the medium outlet can be connected to the medium supply mechanism and the medium collection mechanism respectively through the medium pipeline; the hot medium is set as saturated steam; and when the hot medium is introduced into the medium inlet, the medium pipeline connected to the medium inlet can be connected to a saturated steam pressure regulating valve.

[0009] Preferably, the medium inlet can also be vented with a cold medium, and the medium outlet can discharge the cold medium that has been heated by heat exchange with the heat exchange mechanism; a three-way control valve is provided on each of the medium pipelines connected to the medium inlet and the medium outlet respectively; the air guide mechanism can drive the gas inside the capsule to enter and exit the heat exchange mechanism through the air inlet and the air outlet respectively, and the gas inside the capsule can exchange heat in the heat exchange mechanism to cool down.

[0010] Preferably, the air guiding mechanism includes an external circulation pump and a circulation pipeline. The inlet and outlet of the external circulation pump can be connected to the capsule body through the circulation pipeline, and can drive the gas in the capsule body to enter and exit the heat exchange mechanism through the air inlet and the air outlet, respectively.

[0011] The present invention also provides a vulcanizing capsule, comprising a capsule body and a tire vulcanizing capsule heating assembly as described above; the capsule body is used to internally support the inner wall of the tire blank; the heat exchange mechanism of the tire vulcanizing capsule heating assembly is disposed within the capsule body; the air guide mechanism of the tire vulcanizing capsule heating assembly is disposed on the ring seat.

[0012] The present invention also provides a vulcanizing machine, including the vulcanizing capsule as described above, wherein the air guiding mechanism of the vulcanizing capsule can be fixedly mounted on the ring seat.

[0013] The present invention also provides a heating method for a tire vulcanizing bladder, based on the tire vulcanizing bladder heating assembly described above, comprising the following steps: A heat exchange medium is introduced into the heat exchange mechanism to preheat the capsule body; After the tire blank is loaded into the capsule body, the temperature of the heat medium in the heat exchange mechanism is made higher than the vulcanization working temperature, and the gas in the capsule body is driven to enter and exit the heat exchange mechanism through the air guide mechanism for heat exchange and temperature rise.

[0014] The present invention achieves the following technical effects compared to the prior art: The tire vulcanizing bladder heating assembly provided by this invention, by setting a heat exchange mechanism inside the bladder body, allows external heat medium to enter through a medium inlet and exchange heat with the gas medium inside the bladder body through the heat exchange mechanism. This avoids internal temperature deviations and medium residue caused by the heat medium directly entering the bladder body. Moreover, the air guide mechanism promotes full gas flow inside the bladder body and sufficient heat exchange with the heat exchange mechanism, which improves heat exchange efficiency and thus improves the heat utilization efficiency of the heat medium. It also further ensures uniform temperature throughout the bladder body, thereby improving the vulcanization quality and efficiency of the tire. Furthermore, the heat exchange heating method does not require a large amount of electricity, saving energy.

[0015] The vulcanizing bladder, vulcanizing machine, and heating method provided by this invention can improve the vulcanization quality and efficiency of tires based on the tire vulcanizing bladder heating assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a tire vulcanizing bladder heating assembly provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of a heat exchange mechanism provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of another tire vulcanizing bladder heating assembly provided in Embodiment 2 of the present invention.

[0018] In the diagram: 1-Heat exchange mechanism; 11-Medium inlet; 12-Medium outlet; 13-Air inlet; 14-Air outlet; 15-Heat exchange ring cylinder; 16-Heat exchange fins; 2-Air guide mechanism; 21-Motor assembly; 22-Rotor assembly; 23-Stator assembly; 24-Drive shaft; 25-Bearing assembly; 26-Impeller assembly; 27-External circulation pump; 28-Circulation pipeline; 3-Ring seat; 4-Medium pipeline; 5-Medium collection mechanism; 6-Saturated steam pressure regulating valve; 7-Three-way control valve; 8-Two-way control valve; 9-Capsule body. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a tire vulcanizing bladder heating assembly, vulcanizing bladder, vulcanizing machine, and heating method to solve the problems existing in the prior art, improve the vulcanization quality and efficiency of tires, and save energy.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 This embodiment provides a tire vulcanizing bladder heating assembly. Please refer to [link / reference]. Figure 1 The system includes a heat exchange mechanism 1, which is installed inside the capsule body 9. The heat exchange mechanism 1 has a medium inlet 11 and a medium outlet 12 that connect to the outside. The heat exchange mechanism 1 also has an air inlet 13 and an air outlet 14 that connect to the inside of the capsule body 9. The medium inlet 11 can introduce a hot medium, and the medium outlet 12 can discharge the hot medium that has been cooled down after heat exchange with the heat exchange mechanism 1. The air guide mechanism 2 is installed on the ring seat 3. The air guide mechanism 2 can drive the gas inside the capsule body 9 to enter and exit the heat exchange mechanism 1 through the air inlet 13 and the air outlet 14, respectively. The gas in the capsule body 9 can exchange heat in the heat exchange mechanism 1 to increase its temperature.

[0023] Among them, through the capsule body 9 (such as Figure 3The capsule body 9 is equipped with a heat exchange mechanism 1. The external heat medium enters through the medium inlet 11 and exchanges heat with the gas medium inside the capsule body 9 through the heat exchange mechanism 1. This avoids internal temperature deviation and medium residue caused by the direct entry of the heat medium into the capsule body 9. Moreover, the air guide mechanism 2 promotes the full flow of gas inside the capsule body 9 and allows for sufficient heat exchange with the heat exchange mechanism 1, thereby improving the heat exchange efficiency and the heat utilization efficiency of the heat medium. It also ensures that the temperature is consistent throughout the capsule body 9, thus improving the vulcanization quality and efficiency of the tire. Furthermore, the heat exchange heating method does not require a large amount of electricity, saving energy.

[0024] In the optional scheme of this embodiment, more preferably, the heat exchange mechanism 1 includes a heat exchange ring cylinder 15 and a plurality of heat exchange fins 16 circumferentially distributed inside the heat exchange ring cylinder 15; the middle two sides of the heat exchange ring cylinder 15 are respectively provided as an air inlet 13 and an air outlet 14; the heat exchange ring cylinder 15 has a medium inlet 11 and a medium outlet 12; the air guide mechanism 2 is placed between the heat exchange ring cylinder 15 and the ring seat 3.

[0025] Among them, such as Figure 2 As shown, the hollow structure of the heat exchange ring cylinder 15 facilitates the arrangement and fixing of several heat exchange fins 16, while also guiding gas in and out for concentrated heat exchange with the heat exchange fins 16. The top opening of the heat exchange ring cylinder 15 is the air inlet 13, and the bottom opening is the air outlet 14. The heat exchange fins 16 can be fixed inside the heat exchange ring cylinder 15 by welding or bolting. The air guide mechanism 2 is placed on the side of the heat exchange fins 16 near the air outlet 14. The heat exchange ring cylinder 15 can be fixed in relative position to the ring seat 3 through the medium pipeline 4. The medium channel inside the heat exchange ring cylinder 15 connects the medium inlet 11 and the medium outlet 12. In addition, it should be noted that the specific form of the heat exchange mechanism 1 is not limited to the above form, and other types that can meet the heat exchange of saturated steam and gas can also be used.

[0026] In the optional embodiment, more preferably, the air guide mechanism 2 includes a motor assembly 21, which includes a rotor component 22, a stator component 23, and a drive shaft 24. The stator component 23 is fixedly sleeved inside the ring seat 3, and the rotor component 22 is fixedly sleeved outside the drive shaft 24. The drive shaft 24 is rotatably connected to the ring seat 3 through a bearing component 25. An impeller component 26 is fixedly installed at the output end of the drive shaft 24, and the impeller component 26 is placed between the heat exchange mechanism 1 and the ring seat 3. After the motor assembly 21 is powered on, the drive shaft 24 can drive the impeller component 26 to rotate synchronously in the forward or reverse direction, and the speed can be adjusted so that the gas in the capsule body 9 can enter and exit the heat exchange mechanism 1 through the air inlet 13 and the air outlet 14, respectively.

[0027] In this design, the motor assembly 21 is housed within the ring seat 3 of the vulcanizing machine. The outer casing of the motor assembly 21 is eliminated, and the central mechanism ring seat 3 of the vulcanizing machine replaces the motor housing. Compared to installing the entire motor, installing only the motor assembly 21 saves space and avoids the inability to install the ring seat 3 after adding the motor housing. Moreover, after eliminating the motor housing, the heat generated by the stator coil of the stator component 23 can be directly conducted to the ring seat 3, which can dissipate heat and cool the stator component 23 to a certain extent. Furthermore, the heat conducted to the ring seat 3 can reduce the power consumption generated by the vulcanizing machine itself heating the ring seat 3. In addition, a heat insulation plate can be installed between the tail of the motor assembly 21 and the ring seat 3 or on the outside of the ring seat 3 to reduce heat loss from the ring seat 3.

[0028] Furthermore, the specific structure and fit of the rotor component 22, stator component 23, and drive shaft 24 are the same as those of a conventional high-temperature motor. After being energized, the magnetic field of the stator component 23 and rotor component 22 can drive the drive shaft 24 to drive the impeller component 26 to rotate synchronously within the heat exchange mechanism 1. Both ends of the drive shaft 24 are connected to bearing components 25. The stator component 23 is fixedly connected to the ring seat 3 by a heat-shrink fitting. The impeller component 26 can also adopt a conventional mechanism that can drive and guide the airflow. During operation, the motor assembly 21 rotates to drive the impeller component 26. The impeller component 26 includes an impeller and a guide baffle sleeved outside the impeller. The impeller is fixedly connected to the output end of the drive shaft 24. The guide baffle is fixed through the medium pipeline 4. As the impeller rotates, air enters through the inlet 13 and exits through the outlet 14. The impeller and the baffle plate together generate vortices, promoting heat transfer efficiency and thus regulating the temperature of the heat exchange fins 16. When cooling of the heat exchange fins 16 is needed and rapid heating is required within the capsule body 9, the rotation speed is increased; when heating of the heat exchange fins 16 is needed and the temperature within the capsule body 9 rises slowly, the rotation speed is decreased, thereby controlling the vulcanization temperature. Furthermore, the motor assembly 21 can switch between forward and reverse rotation to ensure uniform gas agitation and consistent temperature within the capsule body 9. Moreover, by placing the motor assembly 21 inside the ring seat 3, compared to placing it outside the ring seat 3, the length of the drive shaft 24 can be reduced. A shorter drive shaft 24 reduces transmission wobbling, facilitates stable transmission, and allows for precise speed adjustment.

[0029] In the optional solutions of this embodiment, it is more preferred that the drive shaft 24 is made of a different material from the bearing inner ring of the bearing component 25, and the thermal expansion coefficient of the material of the drive shaft 24 is greater than that of the bearing inner ring; during the heating process, the drive shaft 24 can thermally expand to the point that the bearing inner ring is tightly fitted with an interference fit; during the cooling process, the drive shaft 24 can cold shrink to the point that the bearing inner ring is loosely fitted with a clearance fit.

[0030] Considering that the motor assembly 21 operates under high temperature conditions and requires regular maintenance, it is necessary to disassemble and assemble the motor assembly 21. By using different materials for the transmission shaft 24 and the inner ring of the bearing component 25, and given that the transmission shaft 24 has a large coefficient of thermal expansion, when the transmission shaft 24 and the bearing component 25 are heated to the operating temperature, the degree of deformation is greater than the degree of expansion of the inner ring of the bearing. Therefore, the transmission shaft 24 can thermally expand to form a tight fit with the inner ring of the bearing component 25. Moreover, when not in operation, the transmission shaft 24 and the bearing component 25 cool down simultaneously, allowing the transmission shaft 24 to shrink back to its initial state, resulting in a clearance fit between it and the inner ring of the bearing component 25. This facilitates the disassembly and assembly of the transmission shaft 24 and the bearing component 25.

[0031] Specifically, the drive shaft 24 is made of metal, such as 40Cr alloy, and the bearing component 25 is made of ceramic, such as silicon nitride ceramic bearing, so that the thermal expansion coefficient of the drive shaft 24 is much greater than that of the bearing component 25.

[0032] Furthermore, the drive shaft 24 is hollow, and a hollow channel is formed between several heat exchange fins 16 of the heat exchange mechanism 1. This arrangement is to facilitate the passage of the cylinder rod required for capsule mold closing. The cylinder rod and the drive shaft 24 can be sealed and rotated relative to each other by conventional means under heating conditions, which will not be elaborated on here.

[0033] In the optional scheme of this embodiment, more preferably, the tire vulcanizing bladder heating assembly provided in this embodiment further includes a medium pipeline 4 that connects the medium inlet 11 and the medium outlet 12 respectively. The medium pipeline 4 is used to pass through the ring seat 3 in a direction parallel to the axial direction of the ring seat 3. The medium inlet 11 and the medium outlet 12 can be connected to the medium supply mechanism and the medium collection mechanism 5 respectively through the medium pipeline 4.

[0034] The medium pipeline 4 is used to transport the medium, and it also passes through the ring seat 3, which can also preheat the ring seat 3. The medium supply mechanism provides heat medium to the heat exchange mechanism 1 through the medium pipeline 4. The cooled heat medium enters the medium collection mechanism 5 through the medium pipeline 4 for recovery.

[0035] In the optional scheme of this embodiment, it is more preferred that the heat medium is saturated steam; and when the heat medium is introduced into the medium inlet 11, a saturated steam pressure regulating valve 6 is connected to the medium pipeline 4 connected to the medium inlet 11.

[0036] The heat medium is set as saturated steam, which can be directly applied to the steam mechanism, i.e., the medium supply mechanism, of traditional tire vulcanization. Correspondingly, the medium collection mechanism 5 is set as a condensate tank. After the saturated steam is cooled by heat exchange, it becomes condensate and enters the medium collection mechanism 5 for storage. Moreover, a saturated steam pressure regulating valve 6 is set at the connection between the steam mechanism and the medium pipeline 4, which can adjust the steam supply pressure as needed, thereby adjusting the temperature of the heat exchange mechanism 1.

[0037] Example 2 This embodiment provides a tire vulcanizing bladder heating assembly, which differs from Embodiment 1 in that: the medium inlet 11 can also be used to introduce a cold medium, and the medium outlet 12 can discharge the cold medium that has been heated by heat exchange with the heat exchange mechanism 1; a three-way control valve 7 is provided on the medium pipeline 4 that is connected to the medium inlet 11 and the medium outlet 12 respectively; the air guide mechanism 2 can drive the gas in the bladder body 9 to enter and exit the heat exchange mechanism 1 through the air inlet 13 and the air outlet 14 respectively, and the gas in the bladder body 9 can exchange heat in the heat exchange mechanism 1 to cool down.

[0038] In particular, considering that some off-road tires need to be cooled after vulcanization, when internal cooling is required after the vulcanization heating process, the medium supply mechanism is replaced with a cooling water supply mechanism, and the hot medium is switched to circulating cooling water medium to cool the ring seat 3 and the heat exchange mechanism 1. The air guide mechanism 2 works in conjunction to cool the gas inside the capsule body 9 to the required process temperature.

[0039] Specifically, a three-way control valve 7 is installed on the medium pipeline 4 to facilitate the control of steam entry or discharge, as well as condensate discharge or cooling medium discharge as needed; moreover, the two three-way control valves 7 are also connected to cooling medium pipelines, and each cooling medium pipeline is equipped with a two-way control valve 8. When cooling is required, the three-way control valve 7 is connected to the cooling medium pipeline, and the two-way control valve 8 is opened to allow the cooling medium, such as cooling water, to enter and exit.

[0040] Furthermore, considering that the air guide mechanism 2 needs to remain operational to promote gas flow during the cooling process, the operation of the air guide mechanism 2 must not be affected by cooling; specifically, the structure of the air guide mechanism 2 can be configured as follows: Method 1: For example Figure 3As shown, the air guiding mechanism 2 includes an external circulation pump 27 and a circulation pipeline 28. The inlet and outlet of the external circulation pump 27 can be connected to the capsule body 9 through the circulation pipeline 28, and can drive the gas in the capsule body 9 to enter and exit the heat exchange mechanism 1 through the air inlet 13 and the air outlet 14, respectively. If one end of the circulation pipeline 28 passes through the ring seat 3 and extends to the lower air outlet 14 of the heat exchange mechanism 1, and the other end of the circulation pipeline 28 passes through the ring seat 3 and extends into the capsule body 9, and a distribution plate or air guide plate is set on the air outlet, then the gas after heat exchange in the heat exchange mechanism 1 enters the circulation pipeline 28 through the air outlet 14 and the air inlet of the circulation pipeline 28, and is discharged through the air outlet of the circulation pipeline 28 under the drive of the external circulation pump 27, such as a magnetic levitation centrifugal pump, and is discharged from all sides into the capsule body 9 under the guidance of the distribution plate or air guide plate.

[0041] Method 2: The specific structure of the air guide mechanism 2 is the same as that of the air guide mechanism 2 in Embodiment 1. However, the difference is that the drive shaft 24 and the bearing component 25 can be made of the same material, so that there will be no gap due to temperature changes, or the drive shaft 24 and the bearing component 25 can be detachably fixed by bolts or heat sleeves.

[0042] The other structures of the tire vulcanizing bladder heating assembly provided in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.

[0043] Example 3 This embodiment provides a vulcanizing capsule, including a capsule body 9 and a tire vulcanizing capsule heating assembly as in Embodiment 1 or Embodiment 2; the capsule body 9 is used to support the inner wall of the tire blank; the heat exchange mechanism 1 of the tire vulcanizing capsule heating assembly is disposed inside the capsule body 9; the air guide mechanism 2 of the tire vulcanizing capsule heating assembly is disposed on the ring seat 3.

[0044] The external heat medium enters through the medium inlet 11 and exchanges heat with the gas medium inside the capsule body 9 through the heat exchange mechanism 1. This avoids internal temperature deviation and medium residue caused by the direct entry of the heat medium into the capsule body 9. Moreover, the setting of the air guide mechanism 2 can promote the full flow of gas inside the capsule body 9 and fully exchange heat with the heat exchange mechanism 1, which can improve the heat exchange efficiency and thus improve the heat utilization efficiency of the heat medium. It can also further ensure that the temperature is consistent throughout the capsule body 9, thereby improving the vulcanization quality and efficiency of the tire. In addition, the heat exchange heating method does not require a large amount of electricity, saving energy.

[0045] Example 4 This embodiment provides a vulcanizing machine, including a vulcanizing capsule as in Embodiment 3. The air guiding mechanism 2 of the vulcanizing capsule can be fixedly mounted on the ring seat 3 of the central mechanism. Other mechanisms of the vulcanizing machine are not modified and can be the same as those of a conventional vulcanizing machine, and will not be described in detail here.

[0046] Example 5 This embodiment provides a heating method for a tire vulcanizing bladder, based on a tire vulcanizing bladder heating assembly as described in Embodiment 1 or Embodiment 2, including the following steps: introducing a heat medium into the heat exchange mechanism 1 to preheat the bladder body 9; after the tire blank is loaded into the bladder body 9, making the temperature of the heat medium in the heat exchange mechanism 1 higher than the vulcanization working temperature, and driving the gas in the bladder body 9 to enter and exit the heat exchange mechanism 1 through the air guide mechanism 2 for heat exchange and temperature rise.

[0047] Specifically, taking the tire vulcanizing bladder heating assembly in Example 1 as an example, the specific heating method is as follows: During the preparatory work, saturated steam is first introduced into the heat exchange mechanism 1. The heat exchange mechanism 1 releases heat to preheat the ring seat 3 and transfers the heat to the capsule body 9, so that the entire central mechanism of the vulcanizing machine gradually reaches the working temperature.

[0048] After the blank is loaded into the capsule body 9 and the mold is closed, the saturated steam regulating valve 6 increases the inlet pressure so that the steam temperature in the heat exchange mechanism 1 is higher than the working temperature. The air guide mechanism 2 is activated so that the gas in the capsule body 9 exchanges heat with the heat exchange mechanism 1 and is heated. The air guide mechanism 2 can switch between forward and reverse rotation to ensure that the gas in the capsule body 9 is stirred evenly and the temperature is consistent.

[0049] Specifically, taking the tire vulcanizing bladder heating assembly in Example 2 as an example, the specific heating method is as follows: During the preparatory work, saturated steam is first introduced into the heat exchange mechanism 1. The heat exchange mechanism 1 releases heat to preheat the ring seat 3 and transfers the heat to the capsule body 9, so that the entire central mechanism of the vulcanizing machine gradually reaches the working temperature.

[0050] After the tire blank is loaded into the capsule body 9 and the mold is closed, the saturated steam regulating valve 6 increases the inlet pressure, so that the steam temperature in the heat exchange mechanism 1 is higher than the working temperature, and the air guide mechanism 2 is activated, so that the gas in the capsule body 9 exchanges heat with the heat exchange mechanism 1 and the temperature rises.

[0051] After the vulcanization heating process is completed, when internal cooling is required, the heat medium is switched to circulating cooling water to cool the ring seat 3 and the heat exchange mechanism 1, and the gas inside the capsule body 9 is cooled to the required process temperature through the air guide mechanism 2.

[0052] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A heating assembly for a tire vulcanizing bladder, characterized in that: include: A heat exchange mechanism (1) is installed inside the capsule body (9); the heat exchange mechanism (1) has a medium inlet (11) and a medium outlet (12) communicating with the outside world, and the heat exchange mechanism (1) also has an air inlet (13) and an air outlet (14) communicating with the capsule body (9); the medium inlet (11) can introduce a heat medium, and the medium outlet (12) can discharge the heat medium after it has been cooled by heat exchange with the heat exchange mechanism (1); and The air guide mechanism (2) is used to be installed on the ring seat (3). The air guide mechanism (2) can drive the gas in the capsule body (9) to enter and exit the heat exchange mechanism (1) through the air inlet (13) and the air outlet (14) respectively. The gas in the capsule body (9) can exchange heat in the heat exchange mechanism (1) to increase the temperature.

2. The tire vulcanizing bladder heating assembly according to claim 1, characterized in that: The heat exchange mechanism (1) includes a heat exchange ring cylinder (15) and a plurality of heat exchange fins (16) arranged circumferentially on the inner side of the heat exchange ring cylinder (15); the air inlet (13) and the air outlet (14) are respectively arranged on the middle two sides of the heat exchange ring cylinder (15); the heat exchange ring cylinder (15) has the medium inlet (11) and the medium outlet (12).

3. The tire vulcanizing bladder heating assembly according to claim 1, characterized in that: The air guiding mechanism (2) includes a motor assembly (21), which includes a rotor component (22), a stator component (23), and a drive shaft (24). The stator component (23) is fixedly sleeved inside the ring seat (3), and the rotor component (22) is fixedly sleeved outside the drive shaft (24). The drive shaft (24) is rotatably connected to the ring seat (3) through a bearing component (25). An impeller component (26) is fixedly installed at the output end of the drive shaft (24). The impeller component (26) is placed between the heat exchange mechanism (1) and the ring seat (3). After the motor assembly (21) is powered on, the drive shaft (24) can drive the impeller component (26) to rotate synchronously in the forward or reverse direction, and can adjust the speed so as to drive the gas in the capsule body (9) to enter and exit the heat exchange mechanism (1) through the air inlet (13) and the air outlet (14) respectively.

4. The tire vulcanizing bladder heating assembly according to claim 3, characterized in that: The drive shaft (24) is made of a different material from the inner ring of the bearing component (25), and the thermal expansion coefficient of the material of the drive shaft (24) is greater than that of the inner ring of the bearing. During the heating process, the drive shaft (24) can thermally expand to the point that the inner ring of the bearing is tightly fitted with an interference fit. During the cooling process, the drive shaft (24) can shrink to the point that the inner ring of the bearing is loosely fitted with a clearance fit.

5. The tire vulcanizing bladder heating assembly according to claim 1, characterized in that: It also includes a medium pipeline (4) that connects the medium inlet (11) and the medium outlet (12) respectively. The medium pipeline (4) is used to pass through the ring seat (3) in a direction parallel to the axial direction of the ring seat (3). The medium inlet (11) and the medium outlet (12) can be connected to the medium supply mechanism and the medium collection mechanism (5) respectively through the medium pipeline (4). The hot medium is set as saturated steam. When the hot medium is introduced into the medium inlet (11), the medium pipeline (4) connected to the medium inlet (11) can be connected to the saturated steam pressure regulating valve (6).

6. The tire vulcanizing bladder heating assembly according to claim 5, characterized in that: The medium inlet (11) can also be used to introduce cold medium, and the medium outlet (12) can discharge the cold medium after heat exchange and heating with the heat exchange mechanism (1); a three-way control valve (7) is provided on the medium pipeline (4) that is connected to the medium inlet (11) and the medium outlet (12) respectively. The air guide mechanism (2) can drive the gas inside the capsule body (9) to enter and exit the heat exchange mechanism (1) through the air inlet (13) and the air outlet (14) respectively, and the gas in the capsule body (9) can exchange heat in the heat exchange mechanism (1) to cool down.

7. The tire vulcanizing bladder heating assembly according to claim 6, characterized in that: The air guiding mechanism (2) includes an external circulation pump (27) and a circulation pipeline (28). The inlet and outlet of the external circulation pump (27) can be connected to the capsule body (9) through the circulation pipeline (28) respectively, and can drive the gas in the capsule body (9) to enter and exit the heat exchange mechanism (1) through the air inlet (13) and the air outlet (14) respectively.

8. A vulcanized capsule, characterized in that: It includes a capsule body (9) and a tire vulcanizing capsule heating assembly as described in any one of claims 1-7; the capsule body (9) is used to support the inner wall of the tire blank; the heat exchange mechanism (1) of the tire vulcanizing capsule heating assembly is disposed inside the capsule body (9); the air guide mechanism (2) of the tire vulcanizing capsule heating assembly is disposed on the ring seat (3).

9. A vulcanizing machine, characterized in that: Including the vulcanized capsule as described in claim 8, wherein the air guiding mechanism (2) of the vulcanized capsule can be fixedly mounted on the ring seat (3).

10. A heating method for tire vulcanizing bladders, characterized in that: The tire vulcanizing bladder heating assembly according to any one of claims 1-7 includes the following steps: A heat medium is introduced into the heat exchange mechanism (1) to preheat the capsule body (9); When the tire blank is loaded into the capsule body (9), the temperature of the heat medium in the heat exchange mechanism (1) is higher than the vulcanization working temperature, and the gas in the capsule body (9) is driven to enter and exit the heat exchange mechanism (1) through the air guide mechanism (2) for heat exchange and temperature rise.

Images