CN112793200A

CN112793200A - Tire vulcanizing device and vulcanizing method

Info

Publication number: CN112793200A
Application number: CN202110386630.7A
Authority: CN
Inventors: 赵瑞青; 许延红; 张玉亮
Original assignee: Jiamei Shandong Rubber Co ltd
Current assignee: Jiamei Shandong Rubber Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-05-14

Abstract

The application belongs to the technical field of tire molding, and discloses a tire vulcanizing device is disclosed, including central mechanism, capsule, air supply system, exhaust system and circulation system, circulation system includes circulating line, circulating pump and high frequency heating equipment, the circulating line has first link and second link, first link with the air intake pipe is linked together, the second link with the exhaust duct is linked together. Compared with the prior art, the circulation system in the application can avoid forming the comdenstion water in the capsule in the vulcanization heating process, makes the vulcanization capsule upper and lower face and upper and lower anchor clamps temperature rise stable and the difference in temperature reduce, makes the inside gas temperature of capsule more stable for each contact surface difference in temperature of tire reduces, and the mobility disparity of sizing material reduces, and the dynamic balance evenly improves, has improved the vulcanization quality of tire greatly.

Description

Tire vulcanizing device and vulcanizing method

Technical Field

The application belongs to the technical field of tire molding, and particularly relates to a tire vulcanizing device and a tire vulcanizing method.

Background

Tires are annular elastic rubber products for ground rolling mounted on vehicles or various machines, and are generally mounted on metal rims for supporting vehicle bodies, buffering external impacts, achieving contact with road surfaces and ensuring normal operation of vehicles. Along with the rapid development of the logistics industry, the road transportation is changed, the force for governing overload and overrun vehicles in China is higher and higher, and the quality requirements of people on tires are higher and higher.

The tire vulcanization process is the last major procedure in the tire production process and is the last key to ensure the tire quality. At present, the tire vulcanization process mostly adopts a steam and nitrogen combined mode for vulcanization. One disadvantage of steam heating is that condensation water is formed when it is cooled, which affects temperature variations. The temperature of the bladder and the upper and lower hot plates is sharply reduced in the mold opening and closing process after vulcanization, so that reheating is needed for each vulcanization, the temperature of a new tire blank is also low, and the new tire blank is an object to be heated by steam and is also a heat exchange source of the new tire blank.

A depression is formed at the lower side wall position of the tire in the vulcanization process, and the region is a condensation area inside the bladder, so that the upper temperature and the lower temperature are different, and the upper vulcanization consistency and the lower vulcanization consistency of the tire are influenced. The condensed water discharge mode is to control the timing discharge of the air inlet valve and the air outlet valve, but the efficiency of the mode is too low, and the condensed water is difficult to be completely taken away during the vulcanization operation. And the formation, storage and evaporation process of the condensed water is a heat exchange process, which greatly affects the temperature stability in the capsule. And continuously charging new superheated steam is a waste of energy, the utilization rate of the discharged saturated steam is very low, and the discharged saturated steam is particularly harmful to the environment when discharged into the atmosphere. The existence of condensed water in the prior art is inevitable and difficult to control, so that the quality of the tire in the vulcanization process is difficult to ensure.

Disclosure of Invention

The present application provides a tire vulcanizing device to solve at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a tire vulcanizing device comprising:

a center mechanism including an upper jig and a lower jig;

a capsule fitted to the central mechanism and located between the upper clamp and the lower clamp;

the air supply system comprises an air inlet pipeline which is communicated with the interior of the capsule;

an exhaust system comprising an exhaust conduit in communication with the interior of the capsule;

and the circulating system comprises a circulating pipeline, and a circulating pump and high-frequency heating equipment which are arranged on the circulating pipeline, wherein the circulating pipeline is provided with a first connecting end and a second connecting end, the first connecting end is communicated with the air inlet pipeline, and the second connecting end is communicated with the exhaust pipeline.

Further, the gas supply system further comprises a first control valve, the first control valve is arranged on the gas inlet pipeline, and the first connecting end is located between the capsule and the first control valve.

Further, the exhaust system further comprises a second control valve, the second control valve is arranged on the exhaust pipeline, and the second connecting end is located between the capsule and the second control valve.

Further, the circulation pump is located on the circulation pipe at a rear side of the high-frequency heating apparatus.

Further, the circulation system further includes a third control valve provided in the circulation pipe, the third control valve being located between the first connection end and the high-frequency heating apparatus.

Further, the circulation system further comprises a fourth control valve, the fourth control valve is arranged in the circulation pipeline, and the fourth control valve is located between the second connecting end and the circulation pump.

Further, still include first temperature sensor and second temperature sensor, first temperature sensor set up in go up the anchor clamps in order to sense the temperature of capsule upper surface, second temperature sensor set up in lower anchor clamps in order to sense the temperature of capsule lower surface.

The present application also provides a tire curing method, using a tire curing apparatus as described above, comprising at least the steps of,

s1: controlling the first control valve and the second control valve to be opened, closing the third control valve and the fourth control valve, and introducing high-temperature and high-pressure steam into the capsule through the air inlet pipeline and discharging the high-temperature and high-pressure steam through the exhaust pipeline;

s2: controlling the second control valve to be closed, opening the third control valve and the fourth control valve, starting the circulating pump and the high-frequency heating equipment, closing the first control valve, and circulating high-temperature and high-pressure steam in the tire vulcanizing device;

s3: and controlling to stop the high-frequency heating equipment and the circulating pump, opening the first control valve and the second control valve, discharging high-temperature and high-pressure steam from the exhaust pipeline, and closing the third control valve and the fourth control valve.

Further, in step S2, the circulation process of the steam inside the tire vulcanizing device is:

s21: controlling a third control valve to be closed, and changing saturated steam passing through the circulating pump into superheated steam with initial pressure and temperature by the high-frequency heating equipment;

s22: controlling the third control valve to be opened, and conveying the newly formed superheated steam to the interior of the capsule by the circulating pump;

s23: controlling the third control valve to close, and delivering the steam in the capsule to the high-frequency heating equipment by the circulating pump.

Further, in step S2, during circulation of steam inside the tire vulcanizing device:

and controlling the circulating pump to adjust the output flow according to the temperature signal of the capsule monitored by the first temperature sensor and/or the second temperature sensor.

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

in this application, air supply system, exhaust system and circulation system make the high temperature high pressure steam that lets in the capsule at the capsule, form closed loop between circulating pump and the high frequency heating equipment, the transport effect through the circulating pump makes steam form the circulation system in closed loop, and heat the supplementary energy to steam through the high frequency heating equipment, thereby the two combined action avoids steam to stop in the capsule and forms the comdenstion water, perhaps a small amount of comdenstion water that forms gets into in the circulation steam through steam heating evaporation, make the capsule maintain stable temperature and pressure, make vulcanization heating process obtain accurate control, guarantee the quality of post-vulcanization tire. Compared with the prior art, the circulation system that this application was add can avoid forming the comdenstion water in the capsule in the vulcanization heating process, makes the vulcanization capsule upper and lower face and upper and lower anchor clamps temperature rise stable and the difference in temperature reduce greatly, and the inside gas temperature of capsule is more stable for each contact surface difference in temperature of tire reduces, and the mobility disparity of sizing material reduces, and dynamic balance evenly improves, has improved the vulcanization quality of tire greatly. The utility model provides a vulcanizer can also the quantity of the steam that significantly reduces, reduces gaseous emission simultaneously, has improved the utilization ratio of steam, and whole process is energy-conserving, environmental protection more.

By adopting the tire vulcanizing method, the problem of condensate water formation in the tire vulcanizing heating process is solved, the vulcanizing and template temperature is stable, the method is a steam local circulation heating process, the response is more timely compared with the centralized air supply, the control is more accurate, and compared with the existing mode, the steam condensate water timing and point arranging process is omitted, the vulcanizing time is greatly shortened, the emission of gas is reduced, the gas utilization rate is increased, and the tire vulcanizing method is more environment-friendly and energy-saving. The tire vulcanization method has the advantages that the temperature difference between the upper die and the lower die is greatly reduced, the temperature of the charged gas is stable, the temperature difference between each contact surface of the tire is reduced, the mobility difference of rubber materials is reduced, the dynamic balance is uniformly improved, and the vulcanization quality of the tire is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a tire vulcanizing device provided by the present application.

Fig. 2 is a schematic view showing the structure of a conventional tire vulcanizing apparatus (forming condensed water).

FIG. 3 is a graph of bladder temperature as a function of time for a conventional tire curing process.

FIG. 4 is a graph of bladder temperature as a function of time for a tire curing process as provided herein.

Wherein, 1 goes up anchor clamps, 2 lower anchor clamps, 3 capsules, 4 inlet lines, 5 exhaust ducts, 6 circulating line, 61 first link, 62 second link, 7 circulating pump, 8 high frequency heating equipment, 9 first control valves, 10 second control valves, 11 third control valves, 12 fourth control valves, 13 comdenstion water, 14 tires.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationship shown in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1, the present application provides a tire vulcanizing device including:

a center mechanism including an upper jig 1 and a lower jig 2;

a capsule 3 fitted to the central mechanism and located between the upper clamp 1 and the lower clamp 2;

an air supply system comprising an air inlet duct 4, said air inlet duct 4 communicating with the inside of said capsule 3;

an exhaust system comprising an exhaust duct 5, said exhaust duct 5 communicating with the inside of said capsule 3;

the circulating system comprises a circulating pipeline 6, and a circulating pump 7 and a high-frequency heating device 8 which are arranged on the circulating pipeline 6, wherein the circulating pipeline 6 is provided with a first connecting end 61 and a second connecting end 62, the first connecting end 61 is communicated with the air inlet pipeline 4, and the second connecting end 62 is communicated with the exhaust pipeline 5.

The capsule 3 is assembled in the center mechanism, one end of which is fixed on the upper clamp 1, and the other end is fixed on the lower clamp 2, and the whole body is positioned between the upper clamp 1 and the lower clamp 2. The capsule 3 can expand and contract along with the extension of the piston rod of the central mechanism and the filling of high-pressure gas.

An air inlet pipeline 4 of the air supply system is assembled on the lower clamp 2, and an air outlet of the air inlet pipeline 4 extends into the capsule 3, so that the air inlet pipeline 4 is communicated with the capsule 3. The gas supply system further comprises a gas source (not shown), such as high-temperature high-pressure steam, nitrogen, etc., so that the gas is introduced into the capsule 3 through the gas inlet pipe 4 to control the expansion and contraction of the capsule 3.

An exhaust pipe 5 of an exhaust system is assembled on the lower clamp 2, and an air inlet of the exhaust pipe 5 is positioned inside the capsule 3, so that the exhaust pipe 5 is communicated with the capsule 3, and the gas inside the capsule 3 is conveniently exhausted through the exhaust pipe 5 to control the expansion and contraction of the capsule 3. Meanwhile, the exhaust pipeline 5 can also discharge condensed water in the bladder 3, so that the vulcanization process of the tire is facilitated.

The circulation pipe 6 of the circulation system communicates with the air inlet pipe 4 and the air outlet pipe 5, respectively, so that a closed loop is formed between the capsule 3, the circulation pump 7, and the high-frequency heating apparatus 8. The circulating pump 7 can transport the steam, and promotes the directional conduction and the flow of the steam in the closed loop. The high-frequency heating device 8 can heat the steam in the closed loop, and the steam is further converted into superheated steam after obtaining heat energy.

During the tire vulcanization heating process, a certain amount of high-temperature high-pressure superheated steam is filled in the bladder 3, the steam is cooled and then undergoes cold-heat exchange to become saturated steam, and the saturated steam stays in the bladder 3 to form condensate water 13, as shown in fig. 2. In order to remove the condensed water, the condensed water needs to be evaporated and carried out by introducing superheated steam regularly. However, in the vulcanization process, even if superheated steam is introduced at regular time, the condensate water is difficult to be completely carried out, and the vulcanization heating temperature is affected in the processes of condensate water formation, evaporation and retention, so that the vulcanization process is difficult to be accurately controlled.

In this application, gas supply system, exhaust system and circulation system make the high temperature high pressure steam that lets in capsule 3 at capsule 3, form closed loop between circulating pump 7 and the high frequency heating equipment 8, the transport effect through circulating pump 7 makes steam form the circulation system in closed loop, and heat the supplementary energy through high frequency heating equipment 8 to steam, thereby the two combined action avoids steam to stop in capsule 3 and forms the comdenstion water or a small amount of comdenstion water that forms in the steam heating evaporation entering circulation steam, thereby make capsule 3 maintain stable temperature and pressure, make vulcanization heating process obtain accurate control, guarantee the quality of vulcanizing the back tire.

Compared with the prior art, the circulation system that this application was add can avoid forming the comdenstion water in 3 capsules in the vulcanization heating process, makes the vulcanization and upper and lower anchor clamps temperature stable, has reduced the difference in temperature of upper and lower anchor clamps moreover greatly, and 3 inside gas temperature of capsules are more stable for each contact surface difference in temperature of tire reduces, and the mobility disparity of sizing material reduces, and dynamic balance evenly improves, has improved the quality of vulcanizing the tire greatly. The utility model provides a vulcanizer can also the use amount of the steam that significantly reduces, reduces gaseous emission simultaneously, has improved the utilization ratio of steam, and whole process is energy-conserving, environmental protection more.

In addition, the final shaping of the tire also needs to be carried out by pressurizing the heated tire into the mold pattern through nitrogen, and the nitrogen at normal temperature discharges steam, so that partial condensed water is formed at the moment, but the process is not influenced. Finally, vacuumizing is carried out to extract nitrogen, the central mechanism ascends, and the capsule 3 is lifted up and down to discharge water for the next cycle. Compare in prior art, at whole vulcanization in-process, the inside less comdenstion water that forms of capsule 3 has effectively reduced the row when tire is changed congeals the time, makes whole vulcanization process consuming time littleer, and efficiency is higher.

In addition, in this application, because the function of reheating of circulation system, when vulcanizing the preheating process, only need let in a small amount of steam and simply preheat and can carry out the vulcanization heating process, effectively shortened vulcanization preheating time has improved vulcanization efficiency equally.

Further, the gas supply system further comprises a first control valve 9, the first control valve 9 is disposed in the gas inlet pipeline 4, and the first connection end 61 is located between the capsule 3 and the first control valve 9.

As shown in fig. 1, the first control valve 9 is a servo valve or an electromagnetic valve, or other types of valve bodies, and can effectively control the on-off of the gas inlet pipe 4, so as to realize the precise control of the gas introduced into the capsule 3.

Further, the air exhaust system further comprises a second control valve 10, the second control valve 10 is disposed in the air exhaust pipe 5, and the second connection end 62 is located between the capsule 3 and the second control valve 10.

As shown in fig. 1, the second control valve 10 is similar to the first control valve 9, and a servo valve or a solenoid valve or other valve body is used to effectively control the on/off of the exhaust duct 5, so as to precisely control the gas discharge from the capsule 3. In addition, the first control valve 9 and the second control valve 10 act together to realize the on-off control of the whole capsule 3 and the outside so as to meet the requirement of the vulcanization process.

Further, the circulation pump 7 is located on the rear side of the high-frequency heating apparatus 8 in the gas flow direction of the circulation duct 6.

As shown in fig. 1, in the circulation system, before the circulation pump 7 delivers the steam to the inside of the capsule 3, the steam is first heated and stored by the high-frequency heating device 8, so that the steam entering the capsule 3 has higher energy, and compared with the case that the circulation pump 7 is arranged at the front side of the high-frequency heating device 8, the circulation system avoids the consumption and waste of energy and can ensure the stability of the temperature and pressure of the steam.

In addition, compare in the situation that circulating pump 7 set up in high frequency heating equipment 8 front side, circulating pump 7 sets up in high frequency heating equipment 8's rear side, can avoid high temperature high pressure steam to cause the damage to it, effectively improves circulating pump 7's life, guarantees whole curing equipment's smooth steady operation.

Further, the circulation system further includes a third control valve 11, the third control valve 11 is disposed in the circulation pipe 6, and the third control valve 11 is located between the first connection end 61 and the high-frequency heating apparatus 8.

As shown in fig. 1, the third control valve 11 is a servo valve, an electromagnetic valve, or another type of valve body, and can control gas to enter the circulation pipeline, so as to control on/off of the circulation pipeline.

Further, the circulation system further comprises a fourth control valve 12, the fourth control valve 12 is disposed in the circulation pipeline 6, and the fourth control valve 12 is located between the second connection end 62 and the circulation pump 7.

As shown in fig. 1, the fourth control valve 12 is a servo valve, a solenoid valve, or another type of valve body, and can control the gas to flow out of the circulation line, so as to control the on/off of the circulation line. In addition, the third control valve 11 and the fourth control valve 12 work together to realize accurate control of the circulation line.

During the air intake and exhaust of the capsule 3, the third control valve 11 and the fourth control valve 12 are closed to avoid the introduction of gas into the circulation line. During the vulcanization heating process, the third control valve 11 and the fourth control valve 12 are opened or intermittently opened (the first control valve 9 and the second control valve 10 are used in cooperation), so that the steam stably runs in a closed loop.

Further, the capsule temperature measuring device further comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged on the upper clamp 1 to sense the temperature of the upper surface of the capsule 3, and the second temperature sensor is arranged on the lower clamp 2 to sense the temperature of the lower surface of the capsule 3.

First temperature sensor and second temperature sensor (not shown in the figure) can carry out real-time supervision to the temperature of capsule 3 and central mechanism to through the operating frequency of system according to monitoring temperature regulation circulating pump 7, make the temperature in the capsule 3 control at certain temperature range all the time, thereby improve whole vulcanizer's automatic control nature.

The vulcanization of the tire generally includes a steam heating process and a nitrogen vulcanization process, wherein in the steam heating process, certain high-temperature high-pressure steam is firstly introduced to preheat and heat a central mechanism, a mold, the bladder 3 and the like, then the steam (preheated and heated) is discharged, and finally the high-temperature high-pressure steam (for multiple times) is introduced to the bladder 3 to perform the vulcanization heating process. After the heating process is finished, nitrogen is introduced into the capsule 3 and pressurized, and the heated tire is pressed into a mold to form patterns.

In the process, not only the vulcanization heating process is easy to generate condensed water, which interferes with temperature control and affects the quality of the tire, but also the condensed water is generated in the process of introducing nitrogen after the vulcanization heating process is finished, and the condensed water is discharged at fixed time and fixed point with low efficiency and is difficult to be discharged completely. In addition, the continuously introduced new superheated steam is also a waste of energy, the utilization rate of the discharged saturated steam is very low, and the pollution to the atmospheric environment is caused.

In order to solve the above problems, the present application provides a tire vulcanizing method, using the above tire vulcanizing device, comprising at least the following steps,

s1: controlling the first control valve 9 and the second control valve 10 to be opened, the third control valve 11 and the fourth control valve 12 to be closed, and introducing high-temperature and high-pressure steam into the capsule 3 through the air inlet pipeline 4 and discharging the high-temperature and high-pressure steam through the air outlet pipeline 5;

s2: controlling the second control valve 10 to be closed, the third control valve 11 and the fourth control valve 12 to be opened, starting the circulating pump 7 and the high-frequency heating device 8, closing the first control valve 9, and circulating high-temperature and high-pressure steam inside the tire vulcanizing device;

s3: the high-frequency heating apparatus 8 and the circulation pump 7 are controlled to be stopped, the first control valve 9 and the second control valve 10 are opened, the exhaust pipe 5 discharges high-temperature and high-pressure steam, and the third control valve 11 and the fourth control valve 12 are closed.

In step S1, high-temperature and high-pressure steam (superheated steam) is introduced into the capsule 3 by switching control of the control valves, and on the one hand, the components are preheated and the original gas is exhausted, and as shown in fig. 1, the steam flows spirally in the capsule 3.

In step S2, a closed loop is formed among the bladder 3, the circulation pump 7, and the high-frequency heating device 8 by switching control of the control valves, and the tire is heated by the high-temperature and high-pressure steam in the closed loop. The circulating pump 7 creates a pressure difference in the closed loop circuit, delivers the steam, and promotes the directional conduction and flow of the steam in the closed loop circuit. The high-frequency heating device 8 is used for carrying out heat compensation on the steam in the closed loop circuit and converting saturated steam delivered by the circulating pump 7 into superheated steam again.

In this process, steam only need let in once and can accomplish whole vulcanization heating process, has avoided the waste of steam, not only improves heating efficiency, and the continuous circulation of steam that lets in moreover is avoided dwell time overlength to form the comdenstion water in capsule 3 to avoid the comdenstion water to produce the interference to temperature control.

In step S3, after the vulcanization heating process is completed, the steam in the closed loop is discharged by switching control of the control valves. In addition, because no condensed water is formed in the whole vulcanization heating process, the steam can directly enter the next step after being discharged, and the vulcanization efficiency of the whole tire is effectively improved.

Further, in the present application, the process of circulating steam inside the tire vulcanizing device is as follows:

s21: the third control valve 11 is controlled to be closed, and the high-frequency heating apparatus 8 changes the saturated steam passing through the circulation pump 7 into superheated steam of the initial pressure and temperature.

S22: controlling the third control valve 11 to open, the circulation pump 7 delivering the newly formed superheated steam to the inside of the capsule 3;

s23: the third control valve 11 is controlled to be closed, and the circulation pump 7 delivers the steam inside the capsule 3 to the high-frequency heating apparatus 8, thereby entering the next circulation.

Further, in step S2, during circulation of steam inside the tire vulcanizing device: and controlling the circulating pump 7 to regulate the output flow according to the temperature signal of the capsule 3 monitored by the first temperature sensor and/or the second temperature sensor.

The circulating pump 7 controls the gas circulation interval time in the capsule 3 (adjusted by the working frequency of the circulating pump 7) according to the temperature feedback information in the capsule 3 monitored by the first temperature sensor and/or the second temperature sensor, so as to maintain the stability of the temperature and the pressure in the capsule 3 and always fluctuate within a desired range.

During the heating of the tyre by the vulcanization method of the present application, the temperature sensor monitors the temperature inside the bladder 3 in real time, so as to obtain data of the temperature of the bladder 3 as a function of time, as shown in fig. 4. As can be seen from the figure, the temperature Y2 at the lower side of capsule 3 is slightly higher at the start, mainly due to the steam being ejected from the lower side, and the temperature Y1 at the upper side of capsule 3 is higher than the temperature Y2 at the lower side of capsule 3 over time, which is due to the fact that there is more heat exchange medium at the lower side of capsule 3; with the start of the circulating pump 7, the difference between the upper temperature Y1 of the capsule 3 and the lower temperature Y2 of the capsule 3 becomes smaller, the upper and lower temperatures of the capsule 3 tend to be consistent around 220s of the time of the position of the reticle 1, and the upper and lower temperatures of the capsule tend to be stable when the time reaches 400 s. In a reverse view of the change data of the temperature of the bladder 3 with time in the conventional vulcanization mode, as shown in fig. 3, the temperature Y1 at the upper side of the bladder 3 is difficult to be consistent with the temperature Y2 at the lower side of the bladder 3, and the temperature tends to be stable for a long time, so that the vulcanization time is long and the efficiency is low.

In conclusion, the tire vulcanizing method solves the problem of formation of condensed water in the tire vulcanizing heating process, so that the vulcanizing and template temperature is stable, is a steam local circulation heating process, is more timely in response and more accurate in control compared with centralized air supply, saves a timing and point-arranging process of steam condensed water compared with the existing mode, greatly shortens the vulcanizing time, reduces the emission of gas, increases the utilization rate of the gas, and is more environment-friendly and energy-saving. According to the tire vulcanization method, the temperature difference between the upper mold and the lower mold is greatly reduced, the temperature of the charged gas is stable, the temperature difference between each contact surface of the tire is reduced, the mobility difference of the rubber material is reduced, the dynamic balance is uniformly improved, and the vulcanization quality of the tire is greatly improved.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A tire vulcanizing device, comprising:

a center mechanism including an upper jig and a lower jig;

2. The tire curing apparatus of claim 1, wherein the air supply system further comprises a first control valve disposed in the air intake conduit, the first connection end being located between the bladder and the first control valve.

3. The tire curing apparatus of claim 2, wherein the vent system further comprises a second control valve disposed in the vent conduit, the second connection end being located between the bladder and the second control valve.

4. The tire vulcanizing device according to claim 3, wherein the circulating pump is located on the circulating pipe on a rear side of the high-frequency heating apparatus.

5. The tire vulcanizing device according to claim 4, wherein the circulating system further comprises a third control valve provided in the circulating pipe between the first connecting end and the high-frequency heating apparatus.

6. The tire curing apparatus of claim 5, wherein the circulation system further comprises a fourth control valve disposed in the circulation conduit, the fourth control valve being located between the second connection end and the circulation pump.

7. The tire curing apparatus of claim 6, further comprising a first temperature sensor disposed on the upper clamp to sense the temperature of the upper surface of the bladder and a second temperature sensor disposed on the lower clamp to sense the temperature of the lower surface of the bladder.

8. A tire vulcanizing method using the tire vulcanizing apparatus according to claim 7, characterized in that: at least comprises the following steps of,

9. The tire vulcanizing method according to claim 8, wherein in step S2, the circulation of steam inside the tire vulcanizing device is as follows:

10. A tire vulcanizing method according to claim 9, wherein in step S2, during circulation of steam inside said tire vulcanizing device: