WO2005108038A1 - タイヤの加硫方法およびタイヤ加硫プロセスの設定方法 - Google Patents
タイヤの加硫方法およびタイヤ加硫プロセスの設定方法 Download PDFInfo
- Publication number
- WO2005108038A1 WO2005108038A1 PCT/JP2005/007157 JP2005007157W WO2005108038A1 WO 2005108038 A1 WO2005108038 A1 WO 2005108038A1 JP 2005007157 W JP2005007157 W JP 2005007157W WO 2005108038 A1 WO2005108038 A1 WO 2005108038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- vulcanization
- jacket
- fluid
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000012530 fluid Substances 0.000 claims abstract description 131
- 238000004073 vulcanization Methods 0.000 claims abstract description 98
- 239000011324 bead Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- -1 type Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0675—Controlling the vulcanization processes
- B29D2030/0677—Controlling temperature differences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Definitions
- the present invention relates to a method of vulcanizing a tire and a method of setting a vulcanization process of a tire to be vulcanized by the vulcanization method, and in particular, optimizes vulcanization quality for each part of a tire. Because it is related to the monkey.
- a tread portion and a portion of a tire side surface from a bead portion through a sidewall portion to a shoulder portion include: Since the amount of heat required per volume to achieve a predetermined degree of vulcanization varies greatly, tires are vulcanized by supplying hot fluids with different temperatures to the jackets provided at positions corresponding to these tyres.
- a known method is known (for example, see Patent Document 1), and the latter method has an advantage that the supply condition of the heating fluid can be changed for each jacket.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-172624
- the required amount of heat per volume for obtaining a predetermined degree of vulcanization and the conditions of the maximum allowable temperature are determined between the bead portion and the shoulder portion. Although they are generally different, they are provided at positions corresponding to the bead part and the shoulder part. The same fluid is used to supply the heat to the respective jackets. Force is applied to each of the jackets corresponding to the three tire portions of the tread, bead, and shoulder. If you try to supply different thermal fluids, the supply system becomes much more complicated. As a result, in the conventional vulcanization method, it is necessary to satisfy the above conditions at both the bead portion and the shoulder portion at the same time. The first problem was that if the material was selected, it would be unsatisfactory in terms of the original performance of the tire.
- the present invention has been made in view of such problems, and a heating plate is brought into contact with the outside of a vulcanization mold, and a hot fluid is supplied to a jacket provided on the heating plate to provide a tire.
- Vulcanize For all of a plurality of tire portions including at least a bead portion and a shoulder portion, a tire which can satisfy a condition of an allowable vulcanization degree range and an allowable maximum temperature predetermined for each of these tire portions. It is intended to provide a vulcanizing method and a setting method of a tire vulcanizing process.
- the present invention forms both tire side surfaces extending inward and outward in the radial direction from a bead portion to a shoulder portion of a closed vulcanization mold containing an unvulcanized tire.
- a heating plate is brought into contact with the outer side of each side mold in the tire width direction, and the inner jacket provided at the tire radial position corresponding to the bead portion and the tire radial position corresponding to the shoulder portion of the heating plate.
- a method of vulcanizing a tire comprising supplying a thermal fluid to an outer jacket provided in the tire and using heat conducted from the thermal fluid to the tire via a heating plate and a side mold as at least one vulcanization heat source.
- the term "jacket” refers to a space for accommodating a heating or cooling heat fluid and a portion surrounding the space, and the portion surrounding the space is integrated with the periphery of the jacket.
- a heat fluid storage space formed by perforating a heating plate and a heating plate portion surrounding this space are collectively referred to as a “jacket”.
- two predetermined thermal fluid forces having different temperatures are selected, and at least one of them is used.
- annular heating member is provided on the outer side in the tire radial direction of a plurality of tread segments of the vulcanizing mold which are divided in a circumferential direction to form a tire tread surface.
- This is a tire vulcanizing method in which a hot fluid selected from the above two systems is supplied to the tread jacket provided on the heating member in contact therewith.
- the temperature of the two types of thermal fluids is set to 100 ° C or more for the high-temperature side, and for the low-temperature side, This is a method for vulcanizing a tire at 20 to 100 ° C.
- the present invention is a method for setting a vulcanization process of a tire to be vulcanized by the tire vulcanization method according to any one of (1) to (7),
- At least all of the plurality of tire portions including the bead portion and the shoulder portion are provided with the inner jacket and the inner cover so as to satisfy the conditions of the vulcanization degree range and the maximum allowable temperature predetermined for each of these tire portions.
- This is a setting method of a tire vulcanization process in which the supply conditions of the respective thermal fluids supplied to the outer jacket are individually set.
- the hot fluid supplied to each of the inner jacket and the outer jacket is the hot fluid of the two systems of hot fluids.
- the hot fluid supplied thereto is supplied to the jacket arranged corresponding to the tire portion on the low-temperature side. Switching timing of the heat medium to switch to This is a setting method of a tire vulcanization process to be set.
- the supply conditions including the type, the fluid temperature, and the supply timing of the thermal fluid is made different between the inner jacket and the outer jacket.
- the supply conditions of the thermal fluid of the jacket provided at the position corresponding to the tire portion are set independently of each other, and at least the bead portion and the shoulder portion have an allowable vulcanization degree predetermined for each of these tire portions. The range and the maximum allowable temperature can be satisfied.
- the heat fluid to be supplied to each of the inner and outer jackets two predetermined heat fluid forces having different temperatures are selected, and at least one of the jackets is used for the heat fluid. Since the two thermal fluids are switched at a required timing during vulcanization, by changing the number of types of thermal fluid or the timing of switching the two thermal fluids between these jackets, By simply preparing two thermal fluid supply sources, the vulcanization conditions of the bead part and the shoulder part can be independently optimized, and the intended purpose can be achieved with a simple thermal fluid supply system. Can be.
- the thermal fluid selected from the two systems is supplied to the tread jacket provided at a position corresponding to the tread portion. Therefore, the number of types of thermal fluid used in the tread jacket, or The timing of switching between the two thermal fluids is set independently for the other jackets. As a result, vulcanization conditions can be optimized even at the other tire portions of the bead portion and the shoulder portion without complicating the thermal fluid supply system.
- the number of times of switching of the hot fluid performed during vulcanization is set to one, and this switching is performed by switching the hot fluid of the two systems from the hot fluid to the cold fluid.
- the tires are heated efficiently and the temperature of the tires is switched to a low-temperature side before the temperature exceeds the maximum allowable temperature. The tire temperature does not exceed the maximum allowable temperature.
- the temperature of the two thermal fluids was set at 100 ° C or higher for the high-temperature side and 20 to 100 ° C for the low-temperature side. Faster vulcanization and faster cooling allow for shorter vulcanization times.
- the heat fluid on the high-temperature side is steam
- the required temperature can be generated at a lower pressure than in the case of using hot water.
- the steam generation equipment such as the above can be simplified, and the heat fluid on the low-temperature side is made of water, so that a high cooling capacity can be provided, and a predetermined portion of the tire can be cooled in a short time. Thus, a rise in temperature can be suppressed.
- the high-temperature side and the low-temperature side are both steam, so that the temperature of each of these steams is appropriately set.
- the degree of vulcanization progress which varies depending on the tire portion can be finely adjusted only by changing the switching timing of these thermal fluids depending on the tire portion.
- the conditions of the vulcanization degree range and the allowable maximum temperature predetermined for each of these tire parts are set.
- the supply conditions of the respective thermal fluids to be supplied to the inner jacket and the outer jacket are individually set so as to satisfy the above conditions. Therefore, as described above, the material used for these tire portions can be used without sacrificing the original performance of the tire. You can choose.
- the hot fluid supplied to each of the inner jacket and the outer jacket is the hot fluid of the two types of hot fluid. Therefore, the tire can be efficiently heated with the initial force of vulcanization, and at least one of the bead portion and the shoulder portion has a temperature before the temperature exceeds the maximum allowable temperature.
- the timing of switching the heat medium is set so that the hot fluid supplied to the jacket located at the position corresponding to the tire is switched to the low-temperature side, so that vulcanization of the tire is completed in a short time. The tire temperature does not exceed the maximum allowable temperature.
- the hot fluid supplied to each of the inner jacket, the outer jacket, and the tread jacket is the hot fluid of the two systems of the hot fluid. Therefore, also in the tread portion, the initial force of vulcanization can efficiently heat the tire, and in at least one of the bead portion, the shoulder portion, and the tread portion, the temperature is the same as described above. Before the temperature exceeds the maximum allowable temperature, the switching timing of the heat medium is set so that the heat fluid supplied to the jacket located at the position corresponding to the tire part is switched to the low-temperature side. The vulcanization of the tire can be completed in a short time, and the tire temperature does not exceed the maximum allowable temperature.
- At least one of the inner jacket, the outer jacket, and the tread jacket is supplied with only one type of thermal fluid, and the tire portion at a position corresponding to the jacket is supplied.
- Vulcanization degree force When the vulcanization degree reaches a predetermined degree of vulcanization, vulcanization is terminated. Can be the shortest.
- FIG. 1 is a cross-sectional view showing a vulcanizing apparatus used in a tire vulcanizing method according to the present invention in a tire vulcanizing state.
- FIG. 2 is a cross-sectional view showing the vulcanizing apparatus in a state where an upper platen is raised and separated.
- FIG. 3 is a cross-sectional view showing the vulcanizing apparatus in a state where a tread segment is moved radially outward.
- FIG. 4 is a piping diagram showing a thermal fluid supply system.
- FIG. 5 is a piping diagram showing another embodiment of the thermal fluid supply system.
- FIG. 6 is a chart showing a setting example of a vulcanization process with respect to a timing of supplying a hot fluid.
- FIG. 1 is a cross-sectional view of a tire vulcanizing apparatus used in the tire vulcanizing method of the present embodiment, showing an example of an apparatus for construction tires at the time of tire vulcanization.
- FIG. 3 is a cross-sectional view showing a state in which an upper platen for fixing the upper side mold is raised and separated, and
- FIG. 3 is a cross-sectional view showing a state in which a tread segment is moved radially outward.
- the vulcanizing mold 1 on one side has a pair of side molds 2 and 3 and a plurality of tread segments 4 that engage with the outer peripheral portions of the side molds 2 and 3.
- Each tread segment 4 has a fan shape when viewed in a plane, and when the vulcanizing mold 1 is in operation, it merges with each other to form an annular shape, and engages with the outer peripheral portions of the side molds 2 and 3 to form a tire.
- the tread of T forms the tread surface of TR. In this sense, the tread segment 4 has a shape divided into a plurality of pieces, for example, 6 to 9 pieces in the circumferential direction.
- the remaining portion of the tire T that is, the shoulder SH force connected to both sides of the tread portion TR also extends radially inward and outward through the sidewall portion to the bead portion BD.
- the side molds 2 and 3 include bead rings 5 and 6 for vulcanizing and forming a bead portion.
- a large tire vulcanizing apparatus (hereinafter, referred to as a vulcanizing apparatus) 10 has a vulcanizing mold 1 on one side mounted horizontally as shown in the figure.
- the vulcanizing apparatus 10 has a pair of upper and lower platens 7 and 8.
- the upper platen 7 fixes the upper side mold 2, and the lower platen 8 fixes the lower side mold 3, and each of the platens 7, 8 constitutes a heating plate that contacts and heats the side molds 2, 3. .
- the upper platen 7 has an annular inner jacket 30 provided at a radial position corresponding to the bead portion BD of the tire accommodated in the vulcanizing mold 1, and a radial position corresponding to the shoulder portion SH.
- An annular outer jacket 31 is provided.
- the lower platen 8 is also provided with an annular inner jacket 32 corresponding to the bead portion BD and an outer jacket 33 corresponding to the shoulder SH.
- Each of these jackets 30 to 33 is supplied with a thermal fluid serving as a heat source for heating and vulcanizing the tire side force tire or a tire cooling fluid from the tire side surface.
- the vulcanizing apparatus 10 has a plurality of sectors 13 to which each tread segment 4 is fixedly attached.
- Each sector 13 holds a pair of platens 7, 8 when the vulcanizer 10 is in operation. It is movable radially in and out with respect to the center axis CL, with a corresponding tread segment 4 between them.
- each of the pair of platens 7 and 8 has radially inner and outer sliding surfaces 11S and 12S of each sector 13 on the radially outer facing surface, while each of the sectors 13 has It has a tapered outer peripheral surface 13S that tapers downward.
- the vulcanizing apparatus 10 has a storage ring 14 for heating each tread segment 4 via each sector 13.
- the receiving ring 14 includes a tapered inner peripheral surface 14S that slides and engages with the tapered outer peripheral surface 13S of each sector 13.
- the inner peripheral surface 14S has the same tapered surface shape as the tapered surface of the outer peripheral surface 13S.
- the receiving ring 14 locks the outer peripheral surface 13S of each sector 13.
- As the locking means for example, a T-shaped projection 14T that fits into the groove 13A provided on the outer peripheral surface 13S side of each sector 13 is provided on the inner peripheral surface 14S.
- the receiving ring 14 and the respective sector 13 engaging with it constitute an annular heating element 9 which abuts and heats the corresponding tread segments 4.
- the accommodation ring 14 constituting the annular heating member 9 is provided with annular tread jackets 34 and 35, and these tread jackets 34 and 35 are provided with a heat fluid serving as a heat source for vulcanizing the tread TR. Alternatively, a thermal fluid for cooling the tread TR is supplied.
- the vulcanizing apparatus 10 has a plurality of, in the illustrated example, two lifting means 15 for raising and lowering the containing ring 14.
- the lifting / lowering means 15 may be any type of means for moving the storage ring 14 up and down, such as a pressurized fluid (pressurized gas, pressurized liquid) actuator, an electromagnetic actuator, or a mechanical (for example, ball screw) actuator. It doesn't matter.
- the elevating / lowering means 15 connects and fixes the distal end portion 15P of the operation shaft to the housing ring 14 by the fixture 16.
- the lower platen 8 is fixed to the floor surface FL by a support member 17, and the upper platen 7 is configured to be able to move up and down with respect to the lower platen 8 with the upper side mold 2 fixed.
- one of the upper platen 7 and the receiving ring 14 has a guide means and a fixing means for the other.
- the upper platen 7 has a pin 18 fixed thereto, and the receiving ring 14 has a hole 19H for guiding the pin 18 in a guide member 19 protruding radially outward.
- the pin 18 descends along the wall of the guide groove 19H.
- a fastener for example, a nut 20 is screwed into a screw provided at the tip of the pin 18, and the nut 20 is fastened to the guide member 19.
- the upper side mold 2 is fixed by these guide fixing means.
- the separated upper platen 7 can be separated from the vulcanizing device 10 and can be easily attached to the vulcanizing device 10.
- the pin 18 may be fixed to the member 19, a guide hole for the pin 8 may be provided in the upper platen 7, and the upper end of the pin 18 may be fixed to the upper platen 7.
- the vulcanizing apparatus 10 also supplies a pressurized fluid having a predetermined gauge pressure, for example, a pressurized gas (pressurized air, pressurized nitrogen gas, etc.) into the unvulcanized tire GT to be vulcanized.
- a pressurized gas pressurized air, pressurized nitrogen gas, etc.
- the pressurized fluid supply means 21 is attached to the central space of the lower platen 8.
- the pressurized fluid supply means 21 may be a means for supplying a pressurized fluid directly into the unvulcanized tire, in addition to supplying the pressurized fluid into the bladder 22.
- each elevating means 15 and the tip 15P are lowered to lower the receiving ring 14, whereby each sector 13 and each tread segment 4 are moved radially outward. Move and load an unvulcanized tire GT that has been molded with each tread segment 4 open.
- the upper platen 8 with the upper side mold 2 attached thereto which has been removed from the vulcanizing apparatus 10 and stored in another place, is positioned right above the lower platen 7.
- the upper platen 7 For raising and lowering and transporting the upper platen 7, if the vulcanizing device 10 is very large, separate lifting / lowering means suitable for transporting heavy objects such as an overhead traveling crane is used.In other cases, lifting / lowering means such as an electric hoist is used. Used. Therefore, it is preferable that the upper platen 7 includes a plurality of hanging members on which a wire rope is hung, for example, eyebolts 25.
- the nut 20 is fastened to the guide member 19. Then, pressurized fluid supply The internal pressure of a predetermined gauge pressure is filled into the unvulcanized tire GT through the step 21, and the unvulcanized tire GT is pressed against the inner surface of the vulcanizing mold 1. At least simultaneously with the start of the pressing, preferably before the pressing, the supply of the hot fluid to the respective jackets 30 to 35 of the pair of platens 7, 8 and the receiving ring 14 is started. After heating, the unvulcanized tire GT is subjected to vulcanization molding to obtain a product tire T. After the vulcanization molding is completed, the product tire T is removed from the vulcanization apparatus 10 by performing the above process in reverse.
- FIG. 4 is a piping diagram showing a thermal fluid supply system for supplying thermal fluid to the inner jackets 30 and 32, the outer jackets 31 and 33, and the tread jackets 34 and 35.
- the thermal fluid supply system 40 is configured to supply two types of thermal fluids having different temperatures from each other.
- the thermal fluid supply system 40 supplies steam of 100 ° C or more as a hot fluid on the high temperature side, and 20 Preferably, water at ⁇ 100 ° C is supplied.
- FIG. 4 shows this preferred example as an example.
- a steam generator 50 for generating steam at a predetermined temperature, and one or more steam generators 50 from the steam generator 50 are shown.
- a low-temperature water supply generator 60 for supplying low-temperature water controlled to a predetermined temperature as a low-temperature side heat fluid source, and a low-temperature water
- a low-temperature water supply pipe 61 for distributing low-temperature water from the supply generator 60 to one or more vulcanizers 10 and a low-temperature water return pipe 71 for circulating these vulcanizers 10 and collecting low-temperature water used.
- the steam generator 50 can be composed of, for example, a boiler and a pressure reducing valve for reducing the pressure of steam generated in the boiler to a predetermined temperature.
- a tank for storing factory water a temperature controller for controlling the temperature of the factory water in the tank to a predetermined temperature, and a pump for sucking the temperature-controlled factory water from the tank and discharging the low-temperature water supply pipe 61.
- a pump for sucking the temperature-controlled factory water from the tank and discharging the low-temperature water supply pipe 61 can be composed of
- the steam branches off from the steam main pipe 51 and is supplied to the inner jacket 30 of the upper platen 7 via the automatic opening / closing valve 52. Similarly, the steam is corresponding to each of the other jackets 31 to 35. Supplied via automatic on-off valves 53-56. The steam cooled in each of the jackets 30 to 35 becomes a drain, is discharged to a drain pipe through a steam trap (not shown), and can be collected in the steam generator 50 or the like.
- the low-temperature water branches off from the low-temperature water supply pipe 61 and is supplied to the corresponding jackets 30 to 35 via the automatic on-off valves 62 to 66, and circulates through these jackets 30 to 35. The low-temperature water discharged as a result is recovered to the low-temperature water return pipe 71 through the corresponding automatic on-off valves 72 to 76, respectively.
- Each of the automatic on-off valves 52 to 56, 62 to 66, and 72 to 76 can operate independently of each other, and a control signal of a vulcanization control device (not shown) provided in the vulcanization device 10 is provided. Opening and closing operation is performed based on the operation air, for example, by turning on and off operating air supplied to a piston that moves the valve body up and down.
- the system of the low-temperature side heat fluid may be omitted except for one or more of the jackets 30 to 33.
- the inner jacket 30 of the upper platen 7 and the inner jacket 32 of the lower platen 7 share a thermal fluid
- the outer jacket 31 of the upper platen 7 and the outer jacket 33 of the lower platen 7 also generate heat.
- FIG. 6 is a piping diagram showing the thermal fluid supply system 41 in that case.
- Fig. 4 and Fig. 5 only one set of vulcanizing apparatus 10 is shown.
- a simple hot fluid supply system can be realized.
- a large number of tires can be produced in one set, in which case steam and low-temperature water are supplied to the respective jackets of the respective vulcanizers 10 from the steam main pipe 51 and the low-temperature water supply pipe 61, respectively.
- the low-temperature water is supplied to the low-temperature water return pipe 71 from each jacket of the vulcanizer 10.
- FIG. 6 shows the setting of the vulcanization process related to the supply timing of the thermal fluid supplied to each jacket when the thermal fluid is supplied from the thermal fluid supply system 40 to the vulcanizing apparatus 10 to vulcanize the tire.
- FIG. 6 is a chart showing an example, in which the vertical axis represents the automatic on-off valve represented by the symbol in FIG. 5, and the horizontal axis represents time. On the horizontal axis, T represents the timing of the start of vulcanization, and T represents the timing of the end of carose hydrogenation.
- vulcanization of the bead BD progresses fastest, reaches the maximum allowable temperature at the earliest, and then vulcanization of the shoulder part where vulcanization of the tread part is quick. Progression is the slowest.
- This switching is performed at a timing that matches the vulcanization conditions of the bead portion BD, so that the degree of vulcanization at the bead portion BD is within a predetermined range irrespective of the vulcanization conditions for other tire parts. In other words, it is possible to prevent over-vulcanization, suppress the temperature rise, and prevent rubber deterioration.
- the vulcanization degree of the tire portions other than the bead portion BD has not yet entered a predetermined range, so that steam is continuously supplied to the jackets arranged corresponding to these tire portions. . Then, at timing t, the automatic on-off valves 62, 64, 72, and 74 are closed.
- the bead portion BD has been sufficiently cooled, and it can be seen that the vulcanization degree range and temperature are the expected ranges at the end of vulcanization, taking into account the heat conduction of other tire site forces. Because it is powerful.
- the tread portion TR force satisfies a predetermined vulcanization degree range that has been predetermined, and the automatic opening / closing valve 56 is turned on at a timing t before the temperature reaches a predetermined allowable maximum temperature. "Closed"
- the automatic on-off valves 66 and 76 are opened to switch the hot fluid of the tread jackets 34 and 35 corresponding to the tread TR from steam to low-temperature water to start circulation of low-temperature water. Then, this circulation is performed at the time of vulcanization T
- Tires can be removed.
- the automatic opening / closing valves 63, 65, 73, and 75 are in a state of being "closed” until the initial force of vulcanization is completed.
- the tire vulcanization method of the present invention it is possible to select the optimum vulcanization conditions for each tire part without being affected by the vulcanization conditions at other tire parts.
- the condition is determined by the heat flow at different temperatures for each jacket corresponding to the tire location. Rather than supplying the body, it is realized by switching the two prepared thermal fluids at a timing suitable for the vulcanization conditions, so that simple equipment can be used.
- the tire vulcanizing method and the setting method of the tire vulcanizing process can be applied to the vulcanization of various tires.
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
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- Moulds For Moulding Plastics Or The Like (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05730508A EP1743755B1 (en) | 2004-05-06 | 2005-04-13 | Tire vulcanizing method and tire vulcanizing process setting method |
US11/579,447 US20080277815A1 (en) | 2004-05-06 | 2005-04-13 | Tire Vulcanizing Method and Method of Setting Tire Vulcanization Process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004137291A JP4436712B2 (ja) | 2004-05-06 | 2004-05-06 | タイヤの加硫方法 |
JP2004-137291 | 2004-05-06 |
Publications (1)
Publication Number | Publication Date |
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WO2005108038A1 true WO2005108038A1 (ja) | 2005-11-17 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/007157 WO2005108038A1 (ja) | 2004-05-06 | 2005-04-13 | タイヤの加硫方法およびタイヤ加硫プロセスの設定方法 |
Country Status (5)
Country | Link |
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US (1) | US20080277815A1 (ja) |
EP (1) | EP1743755B1 (ja) |
JP (1) | JP4436712B2 (ja) |
ES (1) | ES2334150T3 (ja) |
WO (1) | WO2005108038A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012171299A (ja) * | 2011-02-23 | 2012-09-10 | Bridgestone Corp | 台タイヤ製造方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR2929878B1 (fr) | 2008-04-11 | 2010-06-11 | Michelin Soc Tech | Moule de vulcanisation d'un pneumatique, installation et procede de regulation thermique du moule |
JP5258501B2 (ja) * | 2008-10-21 | 2013-08-07 | 株式会社ブリヂストン | タイヤ加硫設備および加硫タイヤの製造方法 |
WO2011021695A1 (ja) * | 2009-08-21 | 2011-02-24 | 株式会社ブリヂストン | 台タイヤ製造方法及び加硫装置並びに台タイヤ |
JP5004196B2 (ja) * | 2009-09-18 | 2012-08-22 | 住友ゴム工業株式会社 | 空気入りタイヤの製造方法 |
DE112010004993B4 (de) * | 2009-12-24 | 2021-01-28 | Fuji Seiko Co.,Ltd. | Reifenvulkanisiervorrichtung |
JP5385466B2 (ja) * | 2010-10-29 | 2014-01-08 | 株式会社ブリヂストン | 台タイヤ及びタイヤの製造方法 |
JP5379313B2 (ja) * | 2010-10-29 | 2013-12-25 | 株式会社ブリヂストン | 台タイヤの製造方法及びタイヤの製造方法 |
JP5068875B1 (ja) * | 2011-05-13 | 2012-11-07 | 住友ゴム工業株式会社 | 空気入りタイヤの製造方法 |
US9138950B2 (en) | 2011-08-30 | 2015-09-22 | Bridgestone Americas Tire Operations, Llc | Tire molding apparatus |
US20130204655A1 (en) * | 2012-02-07 | 2013-08-08 | Scott Damon | System and method for customizing and manufacturing tires near point-of-sale |
FR3014009B1 (fr) * | 2013-12-04 | 2016-11-04 | Michelin & Cie | Moule a secteurs pour pneumatique et procede de moulage associe |
FR3028444B1 (fr) * | 2014-11-19 | 2017-10-06 | Michelin & Cie | Dispositif et procede de vulcanisation de pneumatiques |
JP6919204B2 (ja) * | 2017-01-26 | 2021-08-18 | 横浜ゴム株式会社 | タイヤ加硫システムおよびタイヤ加硫方法 |
JP6899996B2 (ja) * | 2017-05-17 | 2021-07-07 | 住友ゴム工業株式会社 | タイヤ加硫方法およびタイヤ加硫装置 |
JP7255933B1 (ja) | 2022-04-11 | 2023-04-11 | 新興金型工業株式会社 | タイヤ加硫金型のコンテナリング及びそのコンテナリングを有するタイヤ加硫金型 |
CN115284654B (zh) * | 2022-09-28 | 2023-01-24 | 山东豪迈机械科技股份有限公司 | 一种轮胎模具及硫化设备 |
CN115256734B (zh) * | 2022-09-28 | 2022-11-29 | 山东银宝轮胎集团有限公司 | 一种轮胎硫化加热装置 |
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- 2005-04-13 WO PCT/JP2005/007157 patent/WO2005108038A1/ja not_active Application Discontinuation
- 2005-04-13 ES ES05730508T patent/ES2334150T3/es active Active
- 2005-04-13 EP EP05730508A patent/EP1743755B1/en not_active Expired - Fee Related
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JPH07195370A (ja) * | 1993-12-28 | 1995-08-01 | Bridgestone Corp | タイヤ加硫金型及びタイヤ加硫方法 |
JP2002172622A (ja) * | 2000-12-07 | 2002-06-18 | Bridgestone Corp | 大型タイヤ加硫方法 |
JP2002172624A (ja) * | 2000-12-07 | 2002-06-18 | Bridgestone Corp | 大型タイヤ加硫装置及び加硫方法 |
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Also Published As
Publication number | Publication date |
---|---|
JP2005319599A (ja) | 2005-11-17 |
JP4436712B2 (ja) | 2010-03-24 |
EP1743755A4 (en) | 2008-03-12 |
EP1743755A1 (en) | 2007-01-17 |
ES2334150T3 (es) | 2010-03-05 |
EP1743755B1 (en) | 2009-10-28 |
US20080277815A1 (en) | 2008-11-13 |
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