KR101764812B1 - Apparatus of post vulcanizing for tire and method for manufacturing tire using the same - Google Patents

Abstract

The present invention relates to a tire after-wheel flow device and a tire manufacturing method using the same. The present invention includes a central shaft into which a tire is inserted, a connection arm unit installed to rotate with respect to the central axis, and an irradiation unit connected to the connection arm unit and irradiating a microwave to the surface of the tire.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tire after-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a manufacturing method, and more particularly, to a tire after-wheel runner and a tire manufacturing method using the same.

The vehicles that the users are traveling with are made up of many parts, among which the tires have a great effect on the driving of the vehicle, and can be said to be one of the key components for securing the safety of the user.

Tires are produced through a cutting process, a molding process, a vulcanizing process and an inspection process. The cutting step is a step of cutting the rolled material to a predetermined width and angle, and the forming step is a step of assembling the cut semi-finished product. Then, in order to improve the physical properties of the tire, a vulcanization process of applying heat and pressure to the formed tire proceeds. The inspection process is a process for inspecting the performance of the manufactured tire.

The vulcanization process is carried out by applying heat and pressure to the inside and outside of the tire by putting the tire into the vulcanizer. Steam is used as the heat source, and inert gas is used as the pressure source.

However, tires have various semi-finished products according to their performance goals, and the curing speed and curing time are different for each semi-finished product individually. Although a vulcanization process is required to optimize the performance of such semi-finished products, there arises a problem that it is difficult for all semi-finished products to exhibit optimum performance only by the vulcanization process.

Further, since there is no apparatus or process for improving the rubber composition or the tire performance itself after the tire vulcanizing process, the physical properties and viscoelasticity of the finished tire can not always be maintained.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

Embodiments of the present invention provide a tire after-wheel flow apparatus that improves the physical properties of a tire after a vulcanization process. Further, embodiments of the present invention provide a method of manufacturing a tire with improved performance.

According to an aspect of the present invention, there is provided a vehicle tire comprising a central shaft into which a tire is inserted, a connecting arm unit provided to rotate with respect to the central shaft, and an irradiation unit connected to the connecting arm unit, Thereby providing a residual tire after-wheel.

The irradiation unit is provided to face the tread of the tire and has a first irradiating unit for irradiating the tread with a microwave and a second irradiating unit for irradiating microwave to the sidewall so as to face the sidewall of the tire can do.

In addition, the second irradiation unit may be installed to face opposite side surfaces of the side wall of the tire.

The irradiating unit may irradiate the tire with microwaves while circulating along the tire.

In addition, the irradiating unit may irradiate the tire with a microwave having a frequency of 500 MHz to 3 GHz.

Further, the irradiating unit can irradiate the tire with a microwave having any one of the heat amount of 10 W / g to 500 W / g.

Also, the connection arm unit can move in the longitudinal direction of the central axis.

The connection arm unit may include at least one arm and a joint installed at an end of the arm to rotate the arm.

Further, the apparatus may further include a mounting portion to which the tire is mounted and is installed to rotate about the central axis.

The control unit may further include a control unit that adjusts the rotation speed of the connection arm unit with respect to the central axis, and the connection arm unit adjusts the movement distance in the longitudinal direction of the central axis.

According to another aspect of the present invention, there is provided a method of manufacturing a tire comprising the steps of: forming a tire from a rubber composition; applying heat and pressure to the tire to vulcanize the rubber composition and sulfur; and irradiating a surface of the vulcanized tire with microwaves The present invention also provides a method of manufacturing a tire.

The step of irradiating the microwave may irradiate the tire with a microwave having a frequency of 500 MHz to 3 GHz.

In addition, the step of irradiating the microwave may irradiate the tire with a microwave having any one of 10 W / g to 500 W / g.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

The rear tire defrosting apparatus according to the embodiments of the present invention can improve the physical properties of the tire by irradiating microwaves to the vulcanized tire. The after-tire-flow-type device can improve the rolling resistance of the tire.

In addition, the after-tire-feeder apparatus is provided so that the irradiating unit is rotated on the central axis, and the microwave can be irradiated to the entire surface of the tire. In addition, the after-tire-wheel feeder can irradiate microwaves of different wavelengths depending on each region of the tire, thereby effectively changing physical properties in each region of the tire.

Further, in the tire manufacturing method, it is possible to manufacture a tire improved in rolling resistance or viscoelasticity by irradiating a microwave to a vulcanized tire.

1 is a perspective view conceptually showing a tire after-wheel flow device according to an embodiment of the present invention.
Fig. 2 is a side view showing one side of the tire after-wheeling device of Fig. 1; Fig.
3 is a block diagram showing the control unit of the after-tire-air-fuel-fired device of FIG.
4 is a side view of a tire after-wheel flow device according to another embodiment of the present invention.
5 is a view showing an example of a process in which the after-tire-air-feed device of FIG. 1 is applied.
6 is a flowchart showing a tire manufacturing method according to another aspect of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning.

In the following examples, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the orthogonal coordinate system, and can be interpreted in a broad sense including the three axes. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

In the following embodiments, terms such as inclusive or possessive are intended to mean that a feature, or element, described in the specification is present, and does not preclude the possibility that one or more other features or elements may be added.

In the following embodiments, when a part of a film, an area, a component or the like is on or on another part, not only the case where the part is directly on the other part but also another film, area, And the like.

In the drawings, components may be exaggerated or reduced in size for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

If certain embodiments are otherwise feasible, the particular process sequence may be performed differently from the sequence described. For example, two processes that are described in succession may be performed substantially concurrently, and may be performed in the reverse order of the order described.

Fig. 1 is a perspective view conceptually showing a tire after-vulcanizing apparatus 100 according to an embodiment of the present invention. Fig. 2 is a side view of the tire after- Fig.

Referring to FIGS. 1 and 2, the rear tire remover 100 may include a central shaft 110, a connecting arm unit 140, and an irradiating unit 160. The post-tire feeder 100 can improve the physical properties of the tire 1 by irradiating a microwave to the tire 1 which has been subjected to the vulcanization process. The after-tire feed device 100 may be installed inside the chamber 30 (see FIG. 5).

The center shaft 110 is installed inside the chamber, and the tire 1 can be inserted. The connection arm unit 140 may be rotatably installed on the central shaft 110.

The center shaft 110 may be provided with a mounting portion 111. The side wall of the tire 1 is inserted into the mounting portion 111, so that the tire 1 can be fixed. The mounting portion 111 is fixed to the center shaft 110 so that the tire 1 can be rotated by the rotation of the center shaft 110. In addition, the mounting portion 111 is connected to a bearing (not shown) inside and is capable of performing relative motion with respect to the center shaft 110. Hereinafter, for convenience of explanation, the mounting portion 111 will be described mainly with reference to a case where the bearing is installed inside and is rotatable with respect to the center shaft 110.

When the driving force is transmitted to the mounting portion 111, the mounting portion 111 can be rotated with respect to the center shaft 110, so that the tire 1 can be rotated. The mounting portion 111 may be connected to a control portion (see FIG. 3) to control the rotational speed of the tire 1. FIG.

The center shaft 110 may be removably installed. The center shaft 110 may be removably installed between the facing mounting portions 111. For example, the center shaft 110 may be coupled to the shaft through a shaft coupling or a flange. The tire 1 is inserted into the mounting portion 111 in a state where the center shaft 110 is separated, and then the center shaft 110 can be connected.

The connection arm unit 140 may be installed to be rotatable in the center shaft 110. The connection arm unit 140 can linearly move in the longitudinal direction of the central axis 110. [ The connection arm unit 140 may include a clamping part 120 and a support part 130.

A plurality of clamping portions 120 may be provided. The clamping unit 120 is installed to correspond to the number of the irradiation units 160, and can rotate the irradiation units 160 independently. Hereinafter, for convenience of explanation, the case where three clamping units are provided will be mainly described.

The clamping unit 120 includes a first clamping unit 121 connected to the first irradiating unit 161 and a second clamping unit 122 and a third irradiating unit 163 connected to the second irradiating unit 162 And a third clamping part 123 may be provided. The first clamping part 121, the second clamping part 122 and the third clamping part 123 can independently rotate about the central axis 110. The first clamping part 121, the second clamping part 122 and the third clamping part 123 can independently move in the longitudinal direction of the central axis 110.

The first clamping unit 121, the second clamping unit 122 and the third clamping unit 123 may be electrically connected to the controller 170. The controller 170 may include a first clamping unit 121, The second clamping unit 122 or the third clamping unit 123 is controlled by adjusting an actuator (not shown) connected to the second clamping unit 122 or the third clamping unit 123 so that the rotation speed of the first clamping unit 121, Or position (see Figure 3).

The supporting part 130 may connect the clamping part 120 and the irradiation part 160. The support portions 130 may be provided in plurality according to the number of the clamping portions 120. A first support portion 131 connected to the first clamping portion 121 and a third support portion 133 connected to the second support portion 132 and the third clamping portion 123 connected to the second clamping portion 122, ). In addition, the first support part 131 may be partially bent.

The irradiation unit 160 is connected to the connection arm unit 140 and can irradiate the tire 1 with microwaves. The irradiating unit 160 can irradiate the tire 1 with microwaves while circulating the tire 1. [

The irradiating unit 160 is provided to face the tread of the tire 1 and has a first irradiating unit 161 for irradiating the tread with microwaves and a second irradiating unit 161 provided so as to face the side wall of the tire 1, A second irradiating unit 162 and a third irradiating unit 163 for irradiating the second irradiation unit.

The irradiation unit 160 can amplify a predetermined frequency generated in an oscillation unit (not shown) and irradiate the tire 1 with the amplified frequency. The irradiation unit 160 can irradiate the surface of the tire 1 with a wavelength corresponding to the range of the micro frequency.

In particular, the irradiation unit 160 can irradiate the tire 1 with a microwave having a frequency of 500 MHz to 3 GHz. If the frequency of the microwave is less than 500 MHz, the physical properties of the rubber composition of the tire 1 are deteriorated, and if severe, the rubber composition may be carbonized. If the frequency of the microwave is larger than 3 GHz, the irradiation time of the microwave takes a long time to improve the physical properties of the rubber composition. Therefore, the irradiation unit 160 can irradiate a microwave having a frequency of 500 MHz to 3 GHz to improve the physical properties of the tire 1 and improve the efficiency of the backflow process.

The irradiating unit 160 can irradiate the tire 1 with a microwave having any one of 10 W / g to 500 W / g. If the heat quantity of the microwave is less than 10 W / g, the change in physical properties of the rubber composition slowly proceeds, and the process time may increase. In addition, if the heat quantity of the microwave is larger than 500 W / g, the carbonization of the rubber composition may occur due to a microwave with a high heat quantity.

The first irradiating unit 161 can be aligned in position by the first clamping unit 121. The first clamping portion 121 may be moved in the longitudinal direction of the central axis 110 so that the first irradiating portion 161 is positioned at the top of the tread.

 The first irradiating unit 161 may be connected to the first clamping unit 121 to circulate the tread of the tire 1. The first irradiating unit 161 is arranged to face the tread of the tire 1. The first irradiating unit 161 can irradiate microwave to the entire surface of the tread by the rotation of the first clamping unit 121. [

The second irradiation unit 162 can be aligned in position by the second clamping unit 122. The gap between the second irradiation part 162 and the sidewall can be adjusted by moving the second clamping part 122 in the longitudinal direction of the central axis 110. [

The second irradiation unit 162 may be connected to the second clamping unit 122 to circulate the sidewall of the tire 1. The second irradiation unit 162 is arranged to face the side wall of the tire 1. [ The second irradiating unit 162 can irradiate the entire surface of the sidewall with microwaves by the rotation of the second clamping unit 122. [

The third irradiation unit 163 is also connected to the third clamping unit 123 to adjust the gap between the third irradiation unit 163 and the sidewall. The third clamping unit 123 is rotated to transmit microwaves to the front surface of the sidewall You can investigate.

3 is a block diagram showing the control unit 170 of the after-tire air-fueling device 100 of FIG.

3, a mounting portion 111, a first clamping portion 121, a second clamping portion 122, a third clamping portion 123, a first irradiation portion 161, a second irradiation portion 162, 3 irradiation unit 163 can be electrically connected by the control unit 170. [

The mounting portion 111 is connected to the control portion 170 to adjust the moving and rotating speed of the mounting portion 111. [ When the mounting portion 111 is operated, the irradiating portion 160 can irradiate microwave to the rotating tire 1 in a fixed state at a specific position.

The control unit 170 may control the rotation speed or position of the first clamping unit 121, the second clamping unit 122, or the third clamping unit 123. [ An actuator (not shown) may be installed in each of the first clamping part 121, the second clamping part 122 and the third clamping part 123. The controller 170 drives the actuator, The second clamping part 122 and the third clamping part 123 can be rotated about the central axis 110 or the longitudinal direction of the central axis 110. [

The control unit 170 controls the rotation speed of the first clamping unit 121, the second clamping unit 122 or the third clamping unit 123 on the central axis 110 so that the irradiation unit 160 can rotate the tire 1, It is possible to irradiate the tire 1 with microwaves.

The control unit 170 controls the position of the first clamping unit 121, the second clamping unit 122 or the third clamping unit 123 on the central axis so that the irradiation unit 160 is positioned on the upper side of the tire 1 . ≪ / RTI >

The control unit 170 can adjust the wavelength of the microwave emitted from the first irradiation unit 161, the second irradiation unit 162, or the third irradiation unit 163. The control unit 170 may control the first irradiation unit 161, the second irradiation unit 162, and the third irradiation unit 163 to oscillate microwaves of different wavelengths. That is, the controller 170 can change the wavelength of the microwave irradiated on the tread of the tire 1 and the wavelength of the microwave irradiated on the sidewall of the tire 1 to be different from each other.

4 is a side view showing a tire after-rinse apparatus 200 according to another embodiment of the present invention.

Referring to FIG. 4, the rear tire remover 200 differs in the configuration and operation of the connection arm units 241, 242, and 243, and will be described below with reference to the connection arm units 241, 242, and 243.

The connecting arm unit may have a clamping portion, a connecting arm and a joint. A plurality of connection arm units may be provided according to the number of irradiation units 160. The connection arm unit includes a first connection arm unit 241 connected to the first irradiation unit 161, a second connection arm unit 242 connected to the second irradiation unit 162, and a second connection arm unit 242 connected to the third irradiation unit 163. [ 3 connection arm unit 243, as shown in FIG.

Each of the connection arm units 241, 242, and 243 may have an arm and a joint. The arm and the joint may be provided in a plurality according to the degree of freedom of the connection arm unit. Hereinafter, for convenience of explanation, the case where two arms and three joints are provided will be mainly described. Hereinafter, one end of the arm is defined as a portion adjacent to the central axis 110, and the other end is defined as a portion distant from the central axis 110.

One end of the first arm 231 is rotatable with the clamping part 120. The first arm 231 is provided with a first joint 235 at one end thereof. A second joint 236 is provided at the other end of the first arm 231 and connected to one end of the second arm 232. The second joint 236 may be configured to allow the first arm 231 and the second arm 232 to rotate. A third joint 237 is provided at the other end of the second arm 232 so that the other end of the second arm 232 can rotate with the irradiation unit 160.

At least one of the first joint 235 to the third joint 237 may be rotated to set the position of the irradiation unit 160. The controller 170 may adjust the rotation angle of any one of the first joint 235 to the third joint 237. [

For example, it is possible to arrange the first irradiating unit 161 to be positioned at the top of the tread by adjusting the angle of rotation of any one of the first joint 235 to the third joint 237, The gap between the irradiation section 161 and the tread of the tire 1 can be adjusted. The second irradiating unit 162 or the third irradiating unit 163 can be aligned with the side wall of the tire 1 so that the second irradiating unit 162 or the third irradiating unit 163 can be located on the sidewall. Can be adjusted.

FIG. 5 is a view illustrating an example of a process of applying the after-tire-after-wheel-drive device of FIG. 1, and FIG. 6 is a flowchart illustrating a method of manufacturing a tire according to another aspect of the present invention.

The tire may be manufactured by a refining process, a compression process, a rolling process, a molding process, a vulcanizing process and a post-flow process.

The refining process is a process of mixing natural rubber, which is a raw material, with various chemicals such as carbon black (carbon black) and sulfur (sulfur), which are a type of black pigment. The refining step is a step of compounding the rubber composition. The extrusion process is a process of extruding the rubber composition blended in the refining process. The rolling process is a process of topping the extruded rubber composition to a cord or a wire.

The molding step S10 is a step of molding a green tire by combining a rubber composition for a rolling process, a cord or a wire with a molding machine. When the tire is molded in the first chamber 10, it flows into the second chamber 20 for vulcanization by a moving means 50 such as a conveyor.

In the vulcanizing step (S20), the green tire manufactured in the molding step (S10) is put into a mold, and high pressure and high heat are applied for a predetermined time, and the vulcanizing system introduced during the compounding process can be reacted. In the vulcanization step (S20), sulfur and rubber molecules in the green tire are chemically bonded to each other to obtain stable inherent properties. When the vulcanization process (S20) is completed, the transfer means (50) such as a conveyor is moved to the third chamber (30) for a backflow.

 After the vulcanizing step (S20), the backwashing step (S30) can irradiate the green tire with microwaves. When the backwashing process (S30) proceeds, the physical properties of the tire change, and the rolling resistance can be improved.

Hereinafter, changes in physical properties of the tire 1 can be explained by irradiating the tire 1 with microwaves.

Ingredients (unit: weight) Sample 1 Sample 2 Sidewall Tread Sidewall Tread Natural rubber 100 100 100 100 Furnace Black
(furnace black) 45 15 45 20 Silica - 70 - 40 Sulfur 2 2 2 2 Crosslinking accelerator One One One One

As shown in Table 1, Sample 1 was prepared by adding 45 parts by weight of furnace black to 100 parts by weight of a rubber polymer (natural rubber), adding a sidewall compound containing sulfur and a crosslinking accelerator and 100 parts by weight of a rubber polymer (natural rubber) 70 parts by weight of silica (Silica) and 15 parts by weight of furnace black were charged into a green tire with a tread compound compounded with sulfur and a crosslinking accelerator. The green tire was crosslinked in a vulcanizer for 165 minutes, 12 minutes and 20 seconds.

Sample 2 was prepared by adding 45 parts by weight of a furnace black to 100 parts by weight of a rubber polymer (natural rubber), adding a sidewall compound containing sulfur and a crosslinking accelerator, 100 parts by weight of a rubber polymer (natural rubber), 40 parts by weight of silica 20 parts by weight of furnace black was added to form a green tire with a tread compound blended with sulfur and a crosslinking accelerator. The green tire was crosslinked at 165 ° C for 10 minutes and 20 seconds to prepare a tire.

In this embodiment, a microwave of 2.4 GHz, which is the most widely used, was used. However, the following conditions do not limit the technique of the present invention.

Natural rubber, furnace black, sulfur, and accelerator are used for the test.

division Sidewall Tread Comparative Example  One Example  One Comparative Example  One Example  One Hardness (Shore A) 53 53 67 67 300% modulus 56 57 153 155 Tensile strength (kg _f / cm ²⁾ 154 163 191 203 Elongation (%) 600 620 360 370 Viscoelasticity (tan 60 °) 0.1566 0.1540 0.1150 0.1142

In Comparative Example 1, the physical properties of Sample 1 were measured. In Example 1, a tire composed of the rubber composition of Sample 1 was irradiated with microwaves of 2.45 GHz at 1 W / g for 1 minute and 30 seconds, respectively, for a total of 3 minutes .

division Sidewall Tread Comparative Example  2 Example  2 Comparative Example  2 Example  2 Hardness (Shore A) 51 51 65 65 300% modulus 47 45 138 137 Tensile strength (kg _f / cm ²⁾ 149 163 204 206 Elongation (%) 640 690 420 430 Viscoelasticity (tan 60 °) 0.1668 0.1619 0.0913 0.0906

The physical properties of the sample 2 of Comparative Example 2 were measured, the tire of the rubber composition of Sample 2 was irradiated with a microwave of 2.45 GHz at 1 W / g for 1 minute and 20 seconds, respectively, for 2 minutes and 40 seconds Respectively.

The rubber compositions obtained in Comparative Example 1, Comparative Example 2, Example 1 and Example 2 were evaluated for hardness (Shore A), 300% modulus, and tensile strength according to the American Society for Testing and Materials (ASTM) (kgf / cm 2), elongation (%), and viscoelasticity (tan 60 °) were measured. The results are shown in Tables 2 and 3 above.

The higher the hardness is, the harder it is. Tensile properties (tensile strength, elongation) indicate that the higher the numerical value, the better the running property of the tire. Viscoelasticity (tan δ 60˚) indicates that the lower the value, the better the rolling resistance of the tire.

Table 2 and Table 3 show that when the tire is irradiated with microwave, the tensile properties of the sidewall and tread increase and the viscoelasticity decreases.

The rotational resistance of the tire when the tire traveled at a speed of 60 km / h or 80 km / h was measured according to the rotational resistance test method (ISO 28580) in the tire running performance. The results are shown in Table 4 below. The lower the value of the rolling resistance, the better the rolling resistance.

division Comparative Example  One Example  One Comparative Example  2 Example  2 Cloud resistance
(Rolling Resistance) 8.69 8.59 9.59 9.46

As shown in Table 4, it can be confirmed that the rolling resistance of the tire is lowered by performing the post-flow process on the sample 1 and the sample 2. That is, the performance of a tire can be improved by a backwash process.

The after-tire-flow-supply device 100 can improve the physical properties of the tire by irradiating microwaves to the vulcanized tire. The after-tire-flow-supply device 100 can improve the rolling resistance of the tire.

The tire after-wheel flow device 100 is installed so that the irradiation part rotates on the central axis, and can irradiate the front surface of the tire with microwaves. Further, the after-tire-wheel feed device 100 can irradiate the microwaves of different wavelengths according to the respective regions of the tire, thereby effectively changing the properties of the respective regions of the tire.

The tire manufacturing method can produce tires with improved rolling resistance or viscoelasticity by irradiating microwaves to vulcanized tires.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments, and that various changes and modifications may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Tire
100: Tire after-run device
110: center axis
120: clamping part
140: connecting arm unit
160:
170:

Claims (13)

A center axis into which the vulcanized tire is inserted;
A connection arm unit installed to rotate about the central axis; And
And an irradiation unit connected to the connection arm unit and irradiating a microwave to the surface of the tire,
The irradiation unit
A first irradiating unit installed to face the tread of the tire and irradiating a microwave to the outer surface of the tread; And
And a second irradiating unit installed to face the sidewall of the tire and irradiating microwave to the outer surface of the sidewall,
Wherein the connecting arm unit adjusts the distance between the first irradiating portion and the outer surface of the tread or adjusts the distance between the second irradiating portion and the outer surface of the sidewall. delete The method according to claim 1,
And the second irradiation section is provided so as to face opposite side surfaces of the side wall of the tire. The method according to claim 1,
Wherein the irradiating unit irradiates microwave to the tire while circling along the tire. The method according to claim 1,
Wherein the irradiating unit irradiates the tire with microwaves having any one of frequencies from 500 MHz to 3 GHz. The method according to claim 1,
Wherein the irradiating unit irradiates the tire with a microwave having a heat quantity of any one of 10 W to 500 W per 1 g of the tire. The method according to claim 1,
And the connecting arm unit moves in the longitudinal direction of the central shaft. The method according to claim 1,
Wherein the connection arm unit comprises:
At least one arm; And
And a joint installed at an end of the arm to rotate the arm. The method according to claim 1,
Further comprising: a mounting portion mounted with the tire mounted to rotate about the central axis. The method according to claim 1,
Further comprising a control unit for adjusting a rotation speed of the connection arm unit with respect to the central axis or controlling the movement distance of the connection arm unit in the longitudinal direction of the central axis. Molding a tire from a rubber composition;
Applying heat and pressure to the tire to vulcanize the rubber composition and sulfur; And
And irradiating a surface of the vulcanized tire with a microwave by means of a backflow device,
Wherein said after-
A center axis into which the vulcanized tire is inserted;
A connection arm unit installed to rotate about the central axis; And
And an irradiation unit connected to the connection arm unit and irradiating a microwave to the surface of the tire,
The irradiation unit
A first irradiating unit installed to face the tread of the tire and irradiating a microwave to the outer surface of the tread; And
And a second irradiating unit installed to face the sidewall of the tire and irradiating microwave to the outer surface of the sidewall,
Wherein the connecting arm unit adjusts the distance between the first irradiating portion and the outer surface of the tread or adjusts the distance between the second irradiating portion and the outer surface of the sidewall. 12. The method of claim 11,
The step of irradiating the microwave may include:
And irradiating the tire with a microwave having any one of frequencies from 500 MHz to 3 GHz. 12. The method of claim 11,
The step of irradiating the microwave may include:
Wherein the irradiating unit irradiates the tire with a microwave having a heat quantity of any one of 10 W to 500 W per 1 g of the tire.

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