JP5546813B2 - Vulcanized tire manufacturing method, cooling device, and vulcanization system - Google Patents

Description

  The present invention relates to a method for manufacturing a vulcanized tire, a cooling device, and a vulcanization system in which oil smoke is prevented from spreading in a building.

When manufacturing rubber products such as tires, they are often vulcanized with a vulcanizer.
By the way, when the vulcanization container (pot) of the vulcanizer is opened after vulcanization, oil smoke spreads from the pot to the surroundings. For this reason, it is necessary to increase the number of ventilations in the building where the vulcanizer is installed due to the working environment.

As a measure for preventing oil smoke from spreading from the kettle, Patent Document 1 discloses that oil smoke is forcibly discharged by exhausting while sending air into the kettle during vulcanization.
Further, Patent Document 2 discloses that at the end of vulcanization, white smoke gas (gas containing oil smoke) is sucked from the inside of the kettle before opening the kettle of the vulcanizing apparatus, and further the atmosphere is introduced.

Japanese Patent Laid-Open No. 49-23284 Japanese Patent Laid-Open No. 9-38966

By the way, oily smoke is also generated when the object to be vulcanized taken out from the vulcanizing container is cooled. In Patent Documents 1 and 2, it is not possible to suppress the spread of oil smoke generated when this cooling is performed.
In view of the above facts, the present invention provides a vulcanized tire manufacturing method, a cooling device, and a vulcanization system that suppresses the spread of oil smoke to the surroundings when cooling a vulcanized object. Let it be an issue.

According to the first aspect of the present invention, when post-cure inflation is performed on a vulcanized tire, the tire is placed on at least the lower rim of the post-cure inflator and then gas is passed through the gas passage hole formed in the lower rim. Aspirate.
The term “sucking gas from the gas passage hole after being placed on at least the lower rim” means that the gas may be sucked before being placed on the lower rim. The gas is not limited to air but may be other gas such as nitrogen gas. In addition, when sucking a gas, oily smoke floating in the gas is also sucked.
In the vulcanization of tires, oily smoke is particularly likely to occur when the tire is away from the mold or bladder, but when performing post cure inflation (PCI), the tire taken out from the vulcanization vessel was placed on the lower rim. Oil smoke is released from the tire even under conditions. In the first aspect of the invention, when the tire after vulcanization is cooled, that is, when post cure inflation is performed, the oil smoke discharged from the inside of the tire is placed in a state where the tire is placed on the lower rim, and further placed. In the process, it can be discharged efficiently. Therefore, it is possible to suppress the oil smoke from spreading around the vulcanizing container, and to reduce the environmental load. The oil smoke is mainly composed of oil and usually looks like white smoke.

According to a second aspect of the present invention, an upper rim is disposed on the upper side of the tire, and gas is discharged from the gas passage hole while performing post-cure inflation.
Thereby, when performing the post cure inflation, the oil smoke discharged from the inner surface of the tire can be discharged more efficiently.

According to a third aspect of the present invention, a raw tire is vulcanized in a vulcanization container for tire vulcanization, and at least after the vulcanization container is opened, the gas in the vulcanization container is sucked to perform post-cure inflation. Do.
In this specification, to open a vulcanization vessel that vulcanizes a vulcanized object, the mold moves away from the vulcanized object from a contact arrangement state with respect to the vulcanized object during vulcanization. It means a state. Further, sucking the gas in the vulcanization vessel after at least opening the vulcanization vessel means that the gas may be sucked before the vulcanization vessel is opened. Further, in this specification, when the gas in the vulcanization container is sucked in the state where the vulcanization container is opened, the gas remaining in the vulcanization container or the portion where the vulcanization container is opened tends to flow out. It means sucking gas.
The form of opening the vulcanization vessel is not particularly limited, and may be a form of opening in the vertical direction or a form of opening in the left-right direction. Furthermore, the upper member of the vulcanization vessel is the lower member of the vulcanization vessel. May be hinged to be openable and closable.

Thus, in the invention described in claim 3, the gas in the vulcanization vessel is sucked at least after the vulcanization vessel is opened.
Therefore, it is not necessary to supply a high-pressure gas during vulcanization and to exhaust heat during vulcanization, compared to exhausting the vulcanization vessel while supplying gas into the vulcanization vessel. Energy saving effect is obtained, and the oil smoke generated when the vulcanized tire is detached from the bladder or mold inner wall can be efficiently discharged from the inside of the vulcanization vessel. It is suppressed to spread.
In addition, the manufacturing time can be shortened compared to the case where the gas in the vulcanization container is sucked only before the vulcanization container is opened and the atmosphere is further introduced into the vulcanization container. In addition, the oily smoke generated when it is detached from the inner wall of the mold can be efficiently discharged, and the oily smoke is suppressed from spreading around the vulcanization container.

According to a fourth aspect of the present invention, when the gas in the vulcanization container is sucked, the gas is sucked from the center axis side of the vulcanized tire.
According to the fourth aspect of the present invention, the gas around the tire can be sucked much more evenly than when the gas is sucked from the tread surface side of the vulcanized tire. In addition, it is most preferable that the suction center is located on the central axis in order to suck the gas evenly.

According to the fifth aspect of the present invention, when the vulcanization container is opened, the vulcanized tire is pulled upward from the bladder in the vulcanization container.
Thereby, a tire can be made to detach from a bladder by operation which opens a vulcanization container. Further, a release agent is usually applied to at least one of the bladder surface and the tire inner surface, and when the tire is detached from the bladder after the vulcanization is completed, a large amount of oil smoke containing the release agent is generated. Therefore, the oil smoke generated when the tire is detached from the bladder can be discharged efficiently.

The invention according to claim 6 includes a mounting table on which the vulcanized rubber is mounted and a gas suction port is formed on the mounting side of the rubber, and the rubber mounted on the mounting table is Cooling.
In the invention according to claim 6, when the rubber after vulcanization is cooled, the oil smoke generated from the rubber surface placed on the mounting table can be efficiently discharged, and the oil smoke spreads around the cooling device. It is suppressed.
A side wall portion may be provided around the mounting table. Thereby, since the gas in the inner space of the side wall portion is easily sucked, the above effect can be made more remarkable.
When the rubber is a tire, the mounting table is usually a lower rim that constitutes a post-cure inflator.

The invention according to claim 7 is the vulcanization container for vulcanizing the unvulcanized rubber, the suction means for sucking the gas in the vulcanization container at least after the vulcanization container is opened, and the invention according to claim 6. And a transfer means for transferring the rubber in the vulcanization vessel to the cooling device.
As in the third aspect, to suck the gas in the vulcanization container after at least opening the vulcanization container means that the gas may be sucked before the vulcanization container is opened. Moreover, the form which opens a vulcanization container is not specifically limited, The form opened in an up-down direction may be sufficient, the form opened in a left-right direction may be sufficient, and also the upper member of a vulcanization container is a vulcanization container. It may be configured to be openable and closable by being hinged to the lower member.

In the seventh aspect of the present invention, at least after the vulcanization vessel is opened, the gas in the vulcanization vessel is sucked by the suction means, and the rubber in the vulcanization vessel is transferred to the cooling device of the sixth aspect by the transfer means. And cool.
Therefore, compared with the case of exhausting the mold while supplying gas into the vulcanizing vessel during vulcanization, the vulcanizing apparatus can be simplified because no high-pressure gas is required. Therefore, it is possible to efficiently discharge oil smoke generated when the vulcanized rubber is detached from the bladder or the mold inner wall.
In addition, the manufacturing time can be shortened as compared with the case where the gas in the vulcanization container is sucked only before the vulcanization container is opened and the atmosphere is further introduced into the vulcanization container. In addition, there is an effect that it is possible to efficiently discharge the oil smoke generated when it is detached from the inner wall of the mold.

According to an eighth aspect of the present invention, there is provided control means for causing the suction means to start sucking gas after the vulcanization vessel is opened.
Thereby, the operator does not have to perform the gas suction start operation by the suction means.

The invention described in claim 9 includes a hood portion provided at least on the upper portion of the vulcanization vessel and covering at least a part of the vulcanization vessel from the outside, and the suction means sucks the gas in the hood portion.
As a result, even when oil smoke is generated at least after the vulcanization container is opened, the gas containing the oil smoke can be almost sucked, and the oil smoke is further prevented from spreading to the surroundings. be able to.

The invention according to claim 10 is provided with a gantry part that constitutes a part of the vulcanization container, and the gantry part has an external space inside the vulcanization container by an air curtain when the vulcanization container is opened. An air curtain forming part is provided for partitioning.
In invention of Claim 10, even if a vulcanization container is opened, it is further suppressed that oil smoke spreads around by an air curtain.

  ADVANTAGE OF THE INVENTION According to this invention, it can be set as the manufacturing method of a vulcanized tire, the cooling device, and the vulcanization system which suppressed spreading of the oil smoke to the circumference | surroundings when cooling a vulcanization | cure object.

It is a top view which shows the structure of the vulcanization | cure system which concerns on one Embodiment of this invention. It is explanatory drawing explaining the structure of the post-cure inflator which concerns on one Embodiment of this invention. It is explanatory drawing of the vulcanization | cure apparatus which comprises the vulcanization system which concerns on one Embodiment of this invention. It is a side sectional view explaining the state where the cylinder part was lowered and the metallic mold was opened with the vulcanization device which constitutes the vulcanization system concerning one embodiment of the present invention. 5 (A) and 5 (B) are a perspective view of an air curtain forming part of a vulcanizing device constituting a vulcanizing system according to an embodiment of the present invention, and an arrow 5B in FIG. 5 (A), respectively. It is a partial side sectional view of -5B. It is a schematic diagram which shows the suction system of the suction line provided in the vulcanization | cure apparatus of the vulcanization system which concerns on one Embodiment of this invention, and the air supply system to an air curtain formation part. It is a vulcanization device of a vulcanization system concerning one embodiment of the present invention, and is a sectional view explaining a branch pipe branched from a cylinder part and a cylinder part. It is a perspective view which shows the vacuum apparatus of the vulcanizer which comprises the vulcanization | cure system which concerns on one Embodiment of this invention. It is a perspective view showing the 2nd vacuum device of the vulcanizer which constitutes the vulcanization system concerning one embodiment of the present invention. It is explanatory drawing of the modification of the vulcanizer which comprises the vulcanization system which concerns on one Embodiment of this invention.

Hereinafter, embodiments will be described and embodiments of the present invention will be described.
As shown in FIG. 1, a vulcanizing system 1 according to an embodiment of the present invention includes a vulcanizing device 10 for vulcanizing a tire, a post-cure inflator 2 for cooling a tire taken out from the vulcanizing device 10, and And a transfer unit 7 for transferring tires from the vulcanizer 10 to the post-cure inflator 2.

(Post cure inflator and transfer section)
As shown in FIG. 2, the post-cure inflator 2 includes a lower rim 3L on which a pneumatic tire (tire TS) to be subjected to post-cure inflation is placed. The lower rim 3L is formed with a through hole 3H that penetrates in the vertical direction and communicates with the lower end surface and the upper end surface. Furthermore, the post-cure inflator 2 includes an upper rim 3U disposed on the upper side of the pneumatic tire TS placed on the lower rim 3L.
Further, the post-cure inflator 2 includes a connection pipe 4T connected at one end to the lower end of the through hole 3H, and a three-way valve 5X connected to the other end of the connection pipe. Of the remaining two connection ports of the three-way valve 5X, the pressure line 4P is connected to one connection port, and the branch pipe 4B is connected to the other connection port. A suction line 4V for vacuum suction and a normal pressure line 4N for returning the inside of the tire to normal pressure are connected in parallel to the branch pipe 4B, and an opening / closing valve 5Y for opening and closing the suction line 4V; An on-off valve 5Z that opens and closes the normal pressure line 4N is provided.
The transfer portion 7 includes a rotatable arm portion 7A and a tire gripping portion 7C provided at the tip of the arm portion 7A. The transfer portion 7 is vulcanized in a vulcanizing container 16 described later that constitutes the vulcanizing device 10. The tire TS is transferred to the lower rim 3L of the post-cure inflator 2. In addition, as a transfer part 7, not only this but a well-known thing may be applied.

(Vulcanization equipment)
As shown in FIGS. 3 and 4, the vulcanizer 10 includes a vulcanization molding machine 12 that vulcanizes a raw tire and a suction line 14 that sucks gas (air) in the vulcanization container.

(Vulcanization molding machine)
The vulcanization molding machine 12 has a gantry 18 constituting the vulcanizing vessel 16 and a heat insulating hood 20, and the vulcanization molding machine 12 is vulcanized by contact between the mold and the vulcanized object (raw tire). The sulfur container 16 is in a closed state. A bladder 22 is erected in the center of the gantry 18. The hood portion 20 is provided on the upper side of the gantry portion 18 so as to be movable up and down. A platen plate 26 and an expansion / contraction guide portion 34 described later are moved up and down to switch the open / close state of the vulcanization vessel 16. The hood portion 20 is held by an elevator (not shown) and can move up and down.

  The vulcanization molding machine 12 is provided with a cylinder part 24 (see also FIG. 7) that can move up and down through the hood part 20 in the vertical direction. The cylinder portion 24 penetrates the ceiling portion 20U of the hood portion 20 so as to be positioned on the central axis of the hood portion 20. A disk-shaped platen plate 26 is attached to the lower end portion of the cylinder portion 24, and the cylinder portion 24 is open on the lower surface side of the platen plate 26.

  Further, the vulcanization molding machine 12 has a so-called push-pull mold 30 inside the hood portion 20 in which a raw tire (green tire (GT)) is accommodated. The mold 30 includes an upper mold 30U and a lower mold 30L that vulcanize the bead portion from the sidewall portion of the tire, and a tread portion of the tire that comes into contact with the upper mold 30U and the lower mold 30L during vulcanization molding, And a horizontal mold 30S that vulcanizes from the shoulder portion to the sidewall portion. The lower mold 30L is fixed to the gantry 18.

The upper mold 30U is held on the lower surface side of the platen plate 26. The horizontal mold 30S is attached to the segment holder 32 on the outer side in the tire radial direction of the horizontal mold 30S. The segment holder 32 and the horizontal mold 30S are composed of a plurality of divided members. On the outer side in the tire radial direction of the segment holder 32, an expansion / contraction guide portion 34 having a tapered surface 34T that extends downward is provided. Then, when the cylinder portion 24 is lowered with respect to the expansion / contraction guide portion 34, the segment holder 32 is pressed by the platen plate 26 as shown in FIG. 4, and the diameter increases while being guided by the tapered surface 34T of the expansion / contraction guide portion 34. The horizontal mold 30S is lowered and opened. On the other hand, when the cylinder portion 24 is raised with respect to the expansion / contraction guide portion 34, the segment holder 32 is guided by the tapered surface 34T and is raised while the diameter is narrowed, and the horizontal die 30S is closed. With this configuration, the tire can be accommodated in and removed from the mold 30.
The platen plate 26, the upper mold 30U, the segment holder 32, the lower mold 30L, and the expansion / contraction guide part 34 are all located inside the hood part 20. The upper mold 30U and the horizontal mold 30S are covered with the hood portion 20 regardless of whether the horizontal mold 30S is open or closed. It is preferable that the hood portion 20 has a shape covering the entire upper surface side of the vulcanizing vessel 16 as described above, in order to suck air in the vulcanizing vessel 16, The shape which covers a part may be sufficient.

  As shown in FIGS. 3 and 5, the gantry unit 18 of the vulcanization molding machine 12 includes an air curtain forming unit 40 disposed on the upper peripheral edge 18 </ b> E of the gantry unit 18. The air curtain forming unit 40 is supplied with air discharged from a heat recovery device 66, which will be described later, and the air curtain FC extends from the upper peripheral edge 18E of the gantry 12 to the lower edge 20L of the hood 20 (see FIG. 3). It is the structure which forms.

  As shown in FIG. 5, the air curtain forming unit 40 includes an outer ejection part 42 and an inner ejection part 44. The outer ejection part 42 includes a circular pipe 46 and a short pipe-like outer extension part 48 that is arranged at equal intervals on the pipe 46 and extends upward. A jet outlet is formed at the tip of the outer extending portion 48, and an air curtain is formed by the air jetted from the jet outlet.

  The inner ejection part 44 includes a circular pipe 50 disposed below the pipe 46 and a short pipe-shaped inner extension part 52 disposed on the pipe 50 at equal intervals. Each of the inner extending portions 52 is slightly inclined toward the same circumferential direction of the pipe 50 and is slightly inclined toward the inner side of the pipe. A jet outlet is formed at the tip of the inner extension portion 52, and a tornado-like (spiral) air flow FT (toward the center of the ceiling portion 20U of the hood portion 20 by the air jetted from the jet outlet. (See FIG. 3). In addition, although it is suitable for a tornado shape, the air flow which is not a tornado shape may be sufficient.

(Suction line)
The suction line 14 is provided with the cylinder portion 24 that forms the suction port M in the hood portion 20 and a branch pipe 60 (see FIG. 7) branched from the cylinder portion 24. The suction line 14 passes through an ejector type vacuum device (gas suction device) 62 (see also FIG. 8), a smoke separator 64 for removing oil smoke from the sucked air, and a smoke separator 64. A heat recovery device 66 that recovers heat from the air is sequentially provided from upstream to downstream. Moreover, in this embodiment, the smoke separator 64 is comprised with the dust collector (air cleaner). The smoke separator 64 may be any known smoke separator, and may be configured to remove smoke by passing through water and sending gas downstream. In the present embodiment, the heat recovered from the heat recovery device 66 is used in a warmer 68 that keeps the raw tire warm in order to shorten the vulcanization time.

As shown in FIG. 3, the vulcanizing apparatus 10 includes one or a plurality of other vulcanization molding machines (for example, a vulcanization molding machine 16A), and corresponds to the vulcanization container 16 of each vulcanization molding machine 16A. A hood portion H is provided. Each hood H is connected to a branch line G for air suction connected to the suction line 14 via a three-way valve 70 provided between the branch pipe 60 and the vacuum device 62. .
The vulcanizer 10 includes a temperature control of the vulcanizer 12, an operation control of the vacuum device 62 and a second vacuum device 76, which will be described later, an open / close control of each vulcanizer 12, and a three-way valve associated with the opening / closing thereof. A control unit 72 that performs switching control of 70 is provided.

  FIG. 6 is an explanatory diagram showing in detail the suction system of the suction line 14 and the air supply system to the air curtain forming unit. Here, in the suction line 14, a second vacuum device 76 (see also FIG. 9) may be further disposed between the heat recovery device 66 and the gantry 18. In the following description, an example in which the second vacuum device 76 is provided will be described.

  As shown in FIG. 6, the suction line 14 includes a first supply line 80 that supplies compressed air to the vacuum device 62, and a second supply line 90 that supplies compressed air to the second vacuum device 76. , Is connected. In the first supply line 80, a pressure reducing valve 82, an air operated valve (mechanical valve) 84, and an on-off valve 86 are sequentially arranged from upstream to downstream. An electromagnetic valve 88 that controls opening and closing of the three-way valve 70 and the air operated valve 84 is provided. Also in the second supply line 82, a pressure reducing valve 92, an air operated valve (mechanical valve) 94, and an on-off valve 96 are sequentially arranged from the upstream to the downstream. An electromagnetic valve 98 that controls opening and closing of the air operated valve 94 is provided.

  Instead of the cylinder portion 24, a bellows-shaped duct portion that opens to the inside of the hood portion, and a suction pipe that is connected to the downstream end of the duct portion are provided, and a vacuum device 62 and a smoke separation device 64 are provided in the suction pipe. The heat recovery device 66 may be provided. This further simplifies the device configuration.

(Manufacturing method and effect of vulcanized tire)
Hereinafter, the operation and effect of the present embodiment will be described.

First, the raw tire TR is held in the vulcanization container 16 of the vulcanization molding machine 12 and the vulcanization container 16 is closed. As the raw tire TR, a raw tire kept warm by the heat insulator 68 may be used.
Next, the temperature in the vulcanization vessel 16 is raised to a set temperature in accordance with a command from the control unit 72, and the raw tire TR is vulcanized by elapse of a predetermined time.
After the elapse of a predetermined time, the temperature in the vulcanization vessel 16 is lowered according to a command from the controller 72. And according to the instruction | command of the control part 72, the upper metal mold | die 30U, the horizontal metal mold | die 30S, and the food | hood part 20 are raised, and the vulcanization container 16 is opened. At this time, the opening of the hook is started by raising the expansion / contraction guide portion 34 that holds the horizontal mold 30S. In addition, when the hood unit 20 is raised and the atmosphere can flow into the vulcanizing vessel 16, an air suction is started by the vacuum device 62 and the second vacuum device 76 in response to a command from the control unit 72. Air is sucked from M. As a result, air is sucked from the central axis TC of the vulcanized tire TS formed by vulcanizing the raw tire TR, and sent to the smoke separator 64 to remove oily smoke and fed to the heat recovery device 66. Note that the inside of the vulcanization container 16 may be sucked with air before the vulcanization container 16 is opened.

  Here, the air after removing the smoke discharged from the second vacuum device 76 is injected into the air curtain forming unit 40. And, for example, a tornado-like air flow FT (wind speed is, for example, 3 to 6 m / s) from the upper surface peripheral edge portion 18E of the gantry portion 18 toward the suction port M by the air blown from the inner jet portion 44 by the injected air. Range) is formed. Therefore, the oil smoke in the vulcanization container 16 is smoothly sucked from the suction port M. Such an air flow FT toward the suction port M inside the hook brings about an effect of suppressing the accumulation of oily smoke. Moreover, the air curtain FC which partitions from the upper surface peripheral part 18E to the lower edge part 20L of the hood part 20 is formed by the air ejected from the ejection port of the outer ejection part 42. Therefore, the oil smoke in the vulcanizing container 16 is prevented from spreading into the building. In the present embodiment, the example in which both the air flow FT and the air curtain FC are formed has been described. However, only one of the air flow FT and the air curtain FC may be formed. Moreover, it is also possible to provide an air blower etc. separately and to form an air curtain, without using the collect | recovered air in this way.

  Further, when the vulcanizing container 16 is opened, the hood portion 20, the upper mold 30U, and the horizontal mold 30S are raised, and the vulcanized tire TS held in the upper mold 30U and the horizontal mold 30S is bladdered. Pull upward from 22. Accordingly, the vulcanized tire TS is detached from the bladder 22 by opening the vulcanization container 16. At least one of the bladder surface and the tire inner surface is usually coated with a release agent. When the vulcanized tire TS is detached from the bladder 22 after the vulcanization is completed, the amount of oil smoke containing the release agent component is large. Therefore, the oil smoke generated when the vulcanized tire TS is detached from the bladder 22 is efficiently exhausted from the suction port M. Further, the vulcanized tire TS is released from the holding by the movement of the cylinder portion 24.

The tire TS is transferred from the vulcanization vessel 16 to the post-cure inflator 2 by the transfer unit 7 while sucking the upper surface side of the lower rim 3L with the suction line 4V, and the tire TS is mounted at a predetermined position on the lower rim 3L. Put. The tire TS is placed at this predetermined position.
Further, the upper rim 3U is arranged on the upper side of the tire TS to make the inside of the tire TS a sealed space, and post cure inflation is performed. Even during the post-cure inflation, the oily smoke generated from the sealed tire TS is discharged. In this discharge, for example, after injecting air from the pressurization line 4P, oil smoke is discharged by releasing the air in the tire from the normal pressure line 4N. By repeating this process, the pressure in the tire can be maintained above a certain level.

  As described above, in the present embodiment, the tire TS is transferred from the vulcanizing vessel 16 to the lower rim 3L and placed while the upper surface side of the lower rim 3L is sucked by the suction line 4V. Therefore, when performing the post cure inflation, the process of placing on the lower rim 3L and before the upper rim 3U is arranged, particularly the oil smoke discharged from the inside of the tire can be discharged efficiently. The oil smoke is suppressed from spreading around the post cure inflator 2. Therefore, it can be set as the vulcanization system 1 provided with the post-cure inflator 2 with a low environmental load.

Further, the upper rim 3U is arranged on the upper side of the tire TS, and the lower rim 3L and the upper rim 3U make the inside of the tire TS a sealed space, and the gas is discharged from the through hole 3H while performing post-cure inflation. Thereby, when performing post cure inflation, all the oil smoke discharged | emitted from a tire inner surface can be discharged | emitted.
Further, in the present embodiment, the raw tire TR is vulcanized in the vulcanizing container 16 and the air in the hood portion 20 and further the air in the space partitioned by the air curtain FC are opened while the vulcanizing container 16 is opened. Suction is performed by the suction line 14. Therefore, it is not necessary to supply high-pressure air, and it is not necessary to discharge heat during vulcanization, as compared with the case where the vulcanization vessel is exhausted while air is being supplied into the vulcanization vessel during vulcanization. So energy saving effect is obtained. Moreover, the oil smoke generated when the vulcanized tire TS is detached from the bladder 22 and the inner wall of the mold can be efficiently exhausted, and the oil smoke is suppressed from spreading around. Therefore, the working environment in the building can be made much better, and the temperature rise in the building can be suppressed.

  Further, the manufacturing time can be shortened as compared with the case where the gas in the vulcanization vessel 16 is sucked only before the vulcanization vessel 16 is opened and the atmosphere is further introduced into the vulcanization vessel. Moreover, the oil smoke generated when the vulcanized tire TS is detached from the bladder 22 and the inner wall of the mold can be efficiently exhausted, and the oil smoke is suppressed from spreading around.

Furthermore, when performing air suction with the suction line 14, suction is performed from the radial center portion TC of the tire. As a result, the air around the vulcanized tire TS can be sucked evenly and efficiently.
Further, when the vulcanizing container 16 is opened, the vulcanized tire TS is pulled out from the bladder 22. As a result, the vulcanized tire TS can be detached from the bladder 22 by opening the vulcanizing container 16, and the oily smoke generated when the tire is detached from the bladder can be efficiently exhausted.

  Further, when the vulcanizing vessel 16 is opened by the command of the control unit 72, the air suction by the vacuum device 62 and the second vacuum device 76 is started, so that the operation of starting the air suction does not have to be performed by a worker.

Further, the vulcanizer 10 includes a smoke separator 64 that removes oil smoke from the air sucked in the suction line 14, an air curtain forming unit 40 that ejects the air exhausted from the smoke separator 64 to form an air curtain FC, It has. The air curtain FC is formed from the upper surface peripheral edge portion 18E of the gantry 18 to the lower edge portion 20L of the hood portion 20 even when the vulcanizing vessel 16 is opened. Even if the vulcanizing vessel 16 is opened, the vulcanizing vessel is formed. The interior is partitioned from the external space. Therefore, the air curtain FC further suppresses the spread of oily smoke when the vulcanizing vessel 16 is opened. Moreover, this air curtain FC is formed using the exhaust of the smoke separator 64, and the energy saving effect is acquired. Note that even if an air curtain that is ejected outward from the outer periphery of the horizontal mold 30S is formed in place of the air curtain FC, the spread of oil smoke around the vulcanization vessel 16 is suppressed.
Further, the air discharged from the smoke separator 64 is sent to the air curtain forming unit 40 through the heat recovery device 66. Therefore, the thermal efficiency is good, and an energy saving effect and a carbon dioxide gas reduction effect are further exhibited.

In the present embodiment, the upper end of the through hole 3H can be switched between the air suction port 3MP and the air pressurization port 3MV by switching the three-way valve 5X, but there are two through holes (with three or more holes). The air suction port and the air pressure port may be formed separately.
Further, in the present embodiment, a configuration in which the hood portion 20 is not provided is also possible. In this case, an air curtain may be formed by jetting air toward the upper edge of the vulcanization container.
Further, in this embodiment, when the vulcanizing container 16 is opened, the vulcanized tire TS is pulled out of the bladder 22 by raising the horizontal mold 30S while the vulcanized tire TS is held by the horizontal mold 30S. As explained in the example, as shown in FIG. 10, the suction port M is formed above the hook, and after the mold 30 is opened, the vulcanized tire TS remaining on the lower mold 30L side by a known unloader or the like is used. Even in the vulcanizing device 110 configured to be pulled out from the bladder 112, the oil smoke generated when the vulcanized tire TS is separated from the mold 30 can be effectively sucked and exhausted.
That is, oil smoke generated when the vulcanized tire TS is detached from the bladder 22 or the inner wall of the mold can be efficiently generated regardless of where the vulcanized tire TS is located when the vulcanized container 16 is opened. It can exhaust and can suppress that this oil smoke spreads around.
Moreover, although this embodiment demonstrated the example which vulcanizes | cure a raw tire, even if it is a case where unvulcanized rubber other than a raw tire is vulcanized, there exists the same effect | action and effect.

  The embodiments of the present invention have been described with reference to the embodiments. However, the above embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. Needless to say, the scope of rights of the present invention is not limited to the above embodiment.

1 Vulcanization system 2 Post cure inflator (cooling device)
3L lower rim (lower rim, mounting table)
3MP air suction port (gas suction port)
3U Upper rim 3H Through hole (gas passage hole)
7 Transfer part (transfer means)
10 Vulcanizer 14 Suction line (suction means)
16 Vulcanization container 18 Base part 20 Hood part 22 Bladder 40 Air curtain forming part 64 Smoke separation device (smoke separation part)
66 Heat Recovery Device 72 Control Unit (Control Unit)
110 Vulcanizer 112 Blada FC Air curtain TC Center axis TR Raw tire TS Vulcanized tire, tire

Claims (10)

  Manufacture of vulcanized tire in which, when post-cure inflation is performed on a vulcanized tire, after the tire is placed on at least the lower rim of the post-cure inflator, gas is sucked from a gas passage hole formed in the lower rim. Method.   The method for producing a vulcanized tire according to claim 1, wherein an upper rim is disposed on the upper side of the tire, and gas is discharged from the gas passage hole while performing post-cure inflation. The raw tire is vulcanized in a vulcanizing vessel for tire vulcanization,
Sucking the gas in the vulcanization vessel after at least opening the vulcanization vessel;
The method for producing a vulcanized tire according to claim 1 or 2, wherein post-cure inflation is performed.   The method for producing a vulcanized tire according to claim 3, wherein when sucking the gas in the vulcanized container, the gas is sucked from the center axis side of the vulcanized tire. The method for producing a vulcanized tire according to claim 3 or 4 , wherein when the vulcanized container is opened, the vulcanized tire is pulled upward from a bladder in the vulcanized container .   A cooling device comprising a mounting table on which vulcanized rubber is mounted and a gas suction port is formed on the rubber mounting side, and cools the rubber mounted on the mounting table. A vulcanizing container for vulcanizing unvulcanized rubber;
A suction means for sucking the gas in the vulcanization container after at least the vulcanization container is opened;
A cooling device according to claim 6;
Transfer means for transferring the rubber in the vulcanization vessel to the cooling device;
Vulcanizing system equipped with.   The vulcanization system according to claim 7, further comprising a control unit that causes the suction unit to start sucking a gas after the vulcanization container is opened.   The vulcanization system according to claim 7 or 8, further comprising a hood portion provided at least on an upper portion of the vulcanization vessel and covering at least a part of the vulcanization vessel from the outside, wherein the suction means sucks the gas in the hood portion. Comprising a gantry that forms part of the vulcanization vessel;
10. The vulcanization system according to claim 8, wherein an air curtain forming part that partitions the inside of the vulcanization container from an external space by an air curtain when the vulcanization container is opened is provided on the gantry part.

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